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Hidden Nutritional health benefits of Palm Oil

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Palm oil, a part of the vegetable oil family, is actually the nutrition-packed beneficial fat source that can supply number of health benefits to the body. Palm oil is a rich source of saturated fatty acids and natural chemical compounds but it is good for the overall health and nutrition. Particularly, red palm oil has been well-known for its nutritional health benefits, which is obtained from the fruit of the palm tree and should not be perplexed with palm kernel oil that prepared from the palm kernel. Palm oil is a natural source of vitamin E & carotenoids in addition to fatty acids and other essential fat-soluble micronutrients. Palm oil is much healthier oil in its unrefined form than any hydrogenated vegetable oil.

Hidden Nutritional health benefits of Palm Oil

At room temperature, palm oil remains in semi-solid form and contains 50 percent saturated fat and 50 percent unsaturated fats. In most of local supermarkets, online pharmacies and drug stores, palm oil is extensively available and considered safe to use daily because of the lack of harmful side effects. Most of the people think that the saturated fat content of the oil has damaging effect to the body but it is not true. Palm oil is a medium-chain triglyceride that can be obtained from the milk fat, tropical oils, and mother's milk. For people, who are suffering from digestive problems, this type of fat is recommended. Also, it gives an abundance of calories that supplies people much-required energy for daily life. It is best for sports person as they often require extra energy.

Palm Oil Nutrition

Palm oil is a good source of nutrients; it contains fat, vitamin E, vitamin K, and beta carotene in high amount. One tablespoon of palm oil contains 14g of fat, out of which approximately 40 percent are monounsaturated, 50 percent are saturated and 10 percent are polyunsaturated. This amount of palm oil also contains 120 calories, 1 mcg vitamin K, and 2.17 mg of vitamin E. Fresh red palm oil has all these nutrients in high amount.

Nutritional health benefits of Palm Oil

Palm oil is an excellent source of beta-carotene so the health benefits of palm oil are mostly associated to its beta-carotene content.

Beta-carotene (Carotenoids)

The orange-red color of the palm oil is due to the presence of natural chemical compounds, carotenoids. In comparison to the other vegetable oils, crude palm oil and unrefined palm oil are nature's greatest source of carotenoids. It contains 15 times more carotenoids than carrots and 30 times more than tomatoes. In palm oil, the most active and important form of carotenoids is beta-carotene, a form of vitamin A which is an effectual antioxidant that helps to strengthen the immune system of body and to decrease the risk of cataract, heart disease and cancer.

As well, beta-carotene helps to promote good vision and has the potential to get converted into vitamin A that helps in the rhodopsin production, the night vision pigment in the eye’s retina. Beta-carotene has been also shown to help defend the lungs from disease.

Free from Trans-fatty acid (TFA)

One significant health benefit of palm oil is that it is free from Trans-fatty acid. Many scientific studies have shown that Trans-fatty acids can cause colonic cancer, breast cancer, and heart disease. As well, they are supposed to contribute to the impairment of brain development in newborns and development of Type 2 diabetes.

Vitamin E

Palm oil is a rich source of Vitamin E (tocopherols & tocotrienols). Actually, no other vegetable oil contains vitamin E in comparison to palm oil. Vitamin E is a powerful anti-oxidant that decreases the harmful oxygen species (free radicals) in the body. By this way, palm oil helps to protect person from some chronic diseases as well as delay the ageing process of the body. It strengthens the body’s immune system and protects the body’s skin cells from UV radiation and toxins.

Calories

In the body, energy comes from the all groups of food, including oils and fats. Palm oil is an excellent source of calories; 1 gm of palm oil provides 9 Kcal of energy that is 2 ½ times higher than 1 gram of carbohydrates (4 Kcal) or protein (4 Kcal).

Other Health Benefits
  • Palm oil is full of antioxidants that keep skin looking younger by protecting the skin cells.
  • As the oil is a Trans fat-free, it neither increase fatty deposits in the arteries & blood vessels nor interfere in fat metabolism.
  • Palm oil is odorless and tasteless so it is perfect option for people who don’t like the smell and taste of the most marketed oils.
  • This saturated oil raises the amount of good cholesterol, HDL in the body. It is more effective for maintaining a healthy cardiovascular system, in comparison to other saturated oils.
  • Some studies have shown that tocotrienols, one of palm oil's components, can reverse the blockage of carotid artery and thereby helps to prevent heart attack, stroke, and arteriosclerosis.
  • Red palm oil raises the effectiveness of several breast cancer drugs up to 45% as well as inhibits the growth of breast cancer cells.
source here

Fresh Fruit Reception

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The first process is the reception of FFB (Fresh Fruit Bunch) in a Palm oil mill.
The FFB arrives in a mil in trucks or trailers. These are first weighed over a weighbridge. The trucks then go to the FFB loading ramp, where they are emptied. Most trucks have tipping containers and the trucks can be unloaded fast. In many remote areas the trucks are manually unloaded, and this takes time.
The FFB arriving at the mill has to be checked for quality. Ripe FFB yields very much more oil than under ripe FFB. The major factors that will determine the quantity of oil (Oil extraction Ratio- OER) is the ripeness of the FFB.
The FFB is graded by FFB graders and the suppliers penalised for poor quality of FFB delivered. The penalty can be by allocation of a lower oil extraction ratio or a deduction in the weight of the FFB supplied. The price of FFB is determined by the oil available in the FFB.
FFB Grading
The purpose of FFB grading is to determine the quality of FFB received. This helps to determine the purchase price. If the FFB is from company plantation the grading provides feed back to the plantation on the FFB quality.
A ripe fruit bunch is a bunch that has fruit that are reddish orange in colour and has some fruit that have been detached. When the fruits are ripe they fall off the bunch. Ripe fruit contain the maximum amount of oil.
Definition of Bunches
1. Ripe Bunch – 10 loose fruits
2. Over ripe bunch – A bunch with more than 10 loose fruits
3. Very over ripe –A bunch with more than between 10 to 50 fruits detached.
4. Empty bunch- A bunch more than 90 % fruits detached
5. Spoilt bunch- A bunch 30% fruits damaged by rats.
6. Un-fresh bunch- A bunch that was harvested more than 48 hours, can be determined by stalk condition
7. Under ripe bunch –A bunch with  less than 10 loose fruit
8. Hard bunch – A bunch with no loose fruit
9. Diseased bunch – a deformed bunch
10. Dirty bunch – a bunch that has earth and other dirt
A rating system determines the penalty for each factor.

Pricing of FFB
The pricing of FFB depends on the given oil extraction ratio (OER), current price of crude palm oil(CPO), price of palm kernels(PK), the processing cost(PC), the transport cost of CPO(TCPO), the transport cost of kernels(TPK) and any other cost  Othr (i.e incentives, discounts etc)
All the above factors can be incorporated into a formula that can be solved with a computer or manually.
Price of FFB per Tonne
 = OER x Pcpo+KER xPpk - Pcost-OERx(Tcpo)-KERx(Tpk)-Other cost.
For example the price of FFB for the following
CPO price is $ 2000 per Ton CPO------------------------Pcpo
Palm Kernel Price is $ 1000 per Ton palm kernels-----Ppk
Processing Cost = $ 35 per ton FFB---------------------- Pcost
CPO transport cost = $ 50 per ton CPO------------------Tcpo
Kernel transport cost $ 50 per ton Palm Kernels--------Tpk
Other costs = $ 50 per ton FFB---------------------------  Other Cost
Assume OER = 20 %
Assume KER = 5 %
Then the price of FFB per tonne will be
= 0.2 x 2000 + 0.05 x 1000 – 35 – 0.2 x 50 – 0.05x 50 – 50
= $ 352.5

The profitably of processing FFB will depend on the Actual oil and kernel extraction ratios obtained in the mill and the ratios used to calculate the price of FFB purchased.
If the FFB is bought at 20.00 % extraction ratio and if the mill obtains 21.8 % extraction ratio then the difference of 1.8% oil will be profit. If the extraction ratio obtained by the mill is lower than that paid for the purchase, then the mill may loose money.
The profit margin will be very low if a mill that buys FFB and solely depends on processing cost margin to make a profit.
Operating Procedure loading Ramp.
For the operation of the loading ramp the operators must follow the policy of First in First out. This way the retention time of FFB in the loading ramp will be minimised.
The Free Fatty Acid (FFA) increases with time, even one day will cause the FFA to rise significantly. If the FFA in the crude palm oil is more than 5% then generally a lower price is obtained when the oil is sold.

http://www.palmoilmill.co.nz/index.php?option=com_content&view=article&id=47:fresh-fruit-reception&catid=47:ffb-reception&Itemid=71

Sterilising Station

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Purpose:
The purpose of sterilising FFB (Fresh Fruit Bunches) is to treatment them for further processing.
What is sterilising?
Sterilising is a process where the fruit bunches are cooked under steam pressure. Cooking is normally carried out under 3 bar pressure (45 pounds per square inch – psi) for approximately 90 minutes.
During the cooking process the fruits become soft and the enzymes that produce free fatty acid are deactivated. The fruits are also easier to be detached from the bunch after the sterilising process. During the heating under pressure and the subsequent realising of pressure there is a moisture loss from the fruit bunch of about 10%. The loss of moisture from the stalk joining the fruit to the bunch enables the fruit to be easily separated from the bunch. The separation of the fruit from bunches is carried out in the next stage of the palm oil extraction process, called threshing.


Picture of sterilisation station

The sterilising Process.

The fruit bunches are loaded into the fruit cages. The cages with the fruits are pushed into the sterilisers. The movement of cages can be by hydraulic cylinders mounted on the floor in between the rail tracks or by winches.
Once the cages are inside the steriliser the doors are closed. The cooking is by steam. This is let in by opening of the inlet valves. In most palm oil mill the opening and the closing of steam valves is automated and controlled by a simple programmer.
The fruits are normally cooked under steam pressure for 90 minutes. Once the cooking is complete and the steam exhausted from the steriliser. The doors are opened and the fruit cages pulled out of the steriliser.

The cages are the emptied either by being lifted by a crane and rotated on to a thresher or rotated at ground level by a tipper.

The steriliser is a pressure vessel and as such it should be designed to pressure vessel design codes. The shell thickness of the steriliser is normally 12mm. The bottom half of the inside of the steriliser is lined with liners of mild steel or stainless steel so that when the wear they can be replaced. The liners protect the body of the steriliser from wear and extend the life of the steriliser.  The doors and the dish end of the steriliser should be protected by full liners. The doors are expensive to replace. The body of the steriliser is insulated so that the heat loss is minimised.

The sterilising capacity for a palm oil mill depends on the design capacity of the mill. The sterilised fruit must be available at the right time in the right quantity so the mill can achieve the designed processing capacity.
As a sterilising cycle take approximately 2 hours -cooking time and door opening and closing.
Therefore for 30 tons per hour processing capacity the sterilising capacity should be 60 ton. If the mill is designed with cages of 10 tons the mill should have two sterilisers of 3 ten ton cages each. The fruit cage size normally varies from 2.5 tons to 20 tons depending on the design of the mill.

Palm Oil Milling Process

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Edible Oil Processing - Production


PALM OIL MILLING PROCESS


Introduction
Palm oil is extracted from fresh fruit bunches (FFB) by mechanical process, where a mill commonly handles 60 to 100mt per hour of FFB. The modern palm oil mill of today is based predominantly on concepts developed in the early 50s (Mongana Report). An average size FFB weighs about 20-30kg and contains 1500-2000 fruits (Figure1). The FFBs are harvested according to harvesting cycles, and delivered to the mills on the same day. The quality of crude palm oil is dependent on the care taken after harvesting, particularly on the handling of the FFBs.
Figure 1
Figure 1. Fresh fruit bunches waiting for processing at palm oil mill
A palm oil mill produces crude palm oil and kernels, as primary products and biomass as secondary product. The capacity of mills varies between 60- 100 tons FFB/h. A typical mill has many operation units as shown in Figure 2. This comprises of sterilization, stripping, digestion and pressing, clarification, purification, drying and storage. For the kernel line, there are steps such as nut/fibre separation, nut conditioning and cracking, cracked mixture separation, and kernel drying, storage. The dried kernels are often sold to palm kernel crushers for extraction of crude palm kernel oil. In some integrated plants, kernel crushing facilities exist side by side at the same complex.
Figure 2
Figure 2. Flow chart for the palm oil process (from Sivasothy, 2000).

Sterilisation

This first step in the process is crucial to the final oil quality as well as the strippability of fruits. Sterilization inactivates the lipases in the fruits, and prevents build-up of free fatty acids (FFA). In addition, steam sterilization of the FFBs facilitates fruits being stripped from the bunches. It also softens the fruit mesocarp for digestion and release of oil, and conditioning of nuts to minimize kernel breakage. Air is removed from the sterilizer by sweeping in steam in single-peak, double-peak or triple-peak cycles. In general, bunches are cooked using steam at 40psig. in horizontal cylindrical autoclaves for 60-90 minutes. The length of the sterilizer is dependent on the number of cages required for operation of the mill. Each cage can hold 2.5 to 10tons of FFB. Steam consumption varies from 140 kg/ton FFB for a single-peak cycle to 224 kg/ton FFB for a triple – peak cycle (Sivasothy et al.1986). Inadequate sterilzation affects the subsequent milling processing stages adversely.
In recent years, new technology on sterilization saw the introduction of continuous sterilizers. Sivasothy’s (2006) continuous sterilizer showed improved fruit strippability, even with usage of low pressure steam or atmospheric steam. The new system consists of conveyor belt taking crushed FFBs into the continuous sterilizer, where the fruits are sterilized and subsequently discharged. This reduces much of the machinery associated with conventional sterilizers. In addition, there are cost savings in terms of manpower requirements, and maintenance.
Vertical sterilizers are also available, which are much cleaner and easier to operate than conventional sterilizers.
Another type of sterilizer technology, the Tilting sterilizer (Loh, 2010) also eliminates much of the machinery associated with conventional sterilizers. The technology is the latest design that offers improved milling efficiency, and reduced labour and maintenance cost.
Figure 3
Figure 3. A conventional sterilizer

Stripping

Stripping or threshing involves separating the sterilized fruits from the bunch stalks. Sterilized FFBs are fed into a drum stripper and the drum is rotated, causing the fruits to be detached from the bunch. The bunch stalks are removed as they do not contain any oil. It is important to ensure that oil loss in the bunch stalk is kept to a minimum. The stalks are often disposed by incineration, giving ash as potash fertilizer, and fuel for boilers. Others are transported to the plantations for use as fertilisers in mulching near the palms. The total oil loss absorbed on the stalks depends on the sterilizing conditions and partly on the way the stripper is operated. Prolonged sterilization will increase oil loss in stalks. Irregular feeding of the stripper may also result in increase of oil loss in stalks. Stalks which have fruits still attached on them are called hard bunches, and have to be recycled back to sterilizers for further cooking. Hard bunches are detected by visible inspection.

Digestion and Pressing

After stripping, the fruits are moved into a digester where, the fruits are reheated to loosen the pericarp. The steam heated vessels have rotating shafts to which are attached stirring arms. The fruits are rotated about, causing the loosening of the pericarps from the nuts. The digester is kept full and as the digested fruit is drawn out, freshly stripped fruits are brought in. The fruits are passed into a screw press, where the mixture of oil, water, press cake or fibre and nuts are discharged. Improvements in press designs have allowed fruits to undergo single or multiple pressing. Second stage pressing on the press cake fibres enables more oil to be extracted.

Clarification

A mixture of oil, water, solids from the bunch fibres is delivered from the press to a clarification tank. In the conventional process, separation of the oil from the rest of the liquor is achieved by setting tanks based on gravity. The mixture containing the crude oil is diluted with hot water to reduce its viscosity.A vibrating screen helps remove some of the solids. The oil mixture is heated to 85-90◦C and allowed to separate in the clarification tank. A settling time of 1-3 h. is acceptable. Oil from the top is skimmed off and purified in the centrifuge prior to drying in vacuum dryer. The final crude palm oil is then cooled and stored. The lower layer from the clarification tank is sent to the centrifugal separator where the remaining oil is recovered. The oil is dried in vacuum dryers, cooled and sent to storage tanks.

Decanters

Decanters are also used in some mills as an alternative to separating the suspended solids from crude palm oil in a clarification tank. Various design of decanters are available. Their usage is however, hampered by higher maintenance costs from the wear and tear. An advantage to the use is the reduction in palm oil mill effluent. Sulong and Tan (1996) had proposed a membrane filter press for oil and solids recovery. The cake is discharged as solid waste for fertilizer production or animal feed, while the oil is recovered.

Oil Losses during Processing

Oil losses in mills vary from mill to mill, and much attention is given to the control of oil loss. The main oil loss are from sterilizer condensate, empty bunches, fruit loss in unstrapped bunches, press cake fibre, nuts and sludge. Over-ripe bunches will lose more oil during sterilization. To minimize this, shorter sterilizer cycles are used, or better control of bunch ripeness and quality will help ensure less wastage. A typical oil loss in sterilizer is estimated to be 0.1% to FFB. Oils recovered from sterilizer condensate should be used as technical oils, as they often contain higher iron content and would reduce oil stability if mixed with the crude production oil.

Kernel Production

The press cake from the digester is fed to a vertical column (depericarper) where air is channeled to lift the fibre, thus separating the fibre from the nuts. The nuts are passed to a polishing drum at the bottom of the depericarper, where pieces of stalks are removed. A nutcracker cracks the nuts after the conditioning and drying process. A ripple mill is also used instead of nut cracker. The mixture of cracked nuts and shells are separated via a winnowing system, followed by a hydrocyclone or a clay bath. A hydrocyclone uses centrifugal force to separate the kernel from the shell using water. The clay bath principle works on the specific gravity of kernel of 1.07 and the shell of 1.17. The kernels will float while the shells sink in a clay bath mixture of SG 1.12. The kernels are then dried in hot air silos to moisture content of less than 7%. About 0.4mt of kernels are produced with every mt of CPO.

Biomass

The amount of solid palm oil waste available from a mill can be substantial. This consists of empty fruit bunches (EFB), palm kernel shell, mesocarp fibres, and possibly solids from decanters. In most cases, this biomass especially, the EFB, palm kernel shell and mesocarp fibres are used as fuel in the mill, generating enough electricity for running the mill. Besides usage as fuel, the biomass together with fronds and trunks can be left in the fields as fertilizers. EFBs can also be combined with polyurethane ester (PU) to prepare medium density fibreboard, giving higher impact strength and better water resistance (Khairiah, 2006).
Table 1. Dry basis calorific value of palm waste materials (Source: Yap, 2010).
Type of biomass Average calorific value(kcal/kg)Range (kcal/kg)

  Empty fruit bunches1879518000-19920
  Fibre1905518800-19580
  Palm kernel shell1888418880-18895
  Nut2448124256-24830



Treatment of Raw Palm Oil Mill Effluent (POME)

A palm oil mill produces an average of 0.65 tonne of raw palm oil mill effluent (POME) from every ton of FFB processed. POME is the main cause of environmental pollution due to its high acidity, high biological demand (BOD) and chemical oxygen demand (COD). Conventionally, anaerobic digestions in ponding systems or aerobic treatments are able to bring the BOD levels to below 100 mg L-1. Open steel tank digesters are used for tapping the biogas for power consumption. In Malaysia, certain areas have more stringent requirements (BOD of less than 20mg L-1. Tertiary systems have been developed as new systems to provide effluent treatment in a more sustainable manner, as well as achieving the standards required by regulatory bodies. These include biological sequencing batch reactors, bio-filtration systems, systems with high aeration rates, activated sludge plants with aerobic reactors, bio-flow polishing plants, as well as membrane bioreactors. More palm oil plantations are investing into these technologies to harvest the biogas for fuel, and re-use other biomass materials for fertilizers, bio-composite materials, etc.

References

  • Khairiah, B and Khairul, A.M.A. Bio composites from oil palm resources. Journal of Oil Palm Research, April, 103-113 (2006).
  • Loh, T.K. Tilting sterilizer. In: Palm Oil Engineering Bulletin, No 94, pp. 29-42 (2010). MONGANA Report, Volume 1 and 2 Coopérative des Producteurs et exportateurs de l’huile de palme du Congo Belge. (1955).
  • Sivasothy, K., Shafil, A.F. and Lim, N.B.H. Analysis of the steam consumption during sterilization., Workshop on recent developments in palm oil milling technology and pollution control, Kuala Lumpur, p. 19, Malaysian Palm Oil Board, Kuala Lumpur )(1986).
  • Sivasothy, K. Advances in Oil Palm Research, Vol 1, 747, Y. Basiron, B.S. Jalani, and K.W. Chan (eds) , Malaysian Palm Oil Board, Kuala Lumpur) (2000).
  • Sivasothy, K. Continuous sterilization: the new paradigm for modernizing palm oil milling. Journal of Oil Palm Research, April, 144-152 (2006).
  • Sulong, M. and Tan, R.C.W. Filtration system for crude palm oil clarification and purification. In: Proc. Of the 1996 PORIM International Palm Oil Congress, Kuala Lumpur, pp. 410-424. (B. Muhamd, A.N. Ma, M.S. Affandi, Y.M. Choo, A. Kuntom, C.L. Chong, A.G.M. Top, K. Yaakob, S. Ahmad, J. Thambirajah, Z.A.A. Hassan and R. Masri (eds), Malaysian Palm Oil Board, Kuala Lumpur)(1996).
  • Yap, A.K.C. Palm waste as alternative fuel for cement plant. Palm Oil Engineering Bulletin No 91, 13-21 (2010).

Asian Agri Group | Alamat Asian Agri | Asian Agri Medan | Jakarta

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Logo Asian Agri Group
Asian Agri Group  adalah group perusahan kelapa sawit kelas dunia yang berbasis di Indonesia. Asian Agri juga merupakan perusahaan terkebunan yang terbesar di Indonesia. Sampai saat ini asian agri melelola lebih dari 100.000 Hektar di Pulau Sumatera dan bermitra plasma dengan petani dengan  luas 60.000 Hektar

Asian  Agri Group percaya produksi dan penggunaan minyak sawit harus di lakukan secara berkelanjutan berdasarkan pertimbangan ekonomi, social dan lingkungan maka dari itu PT. Inti Indosawit Subur, salah satu perusahaan unggulan dari Group Asian Agri, terlah menjabat sebagai anggota Roundtable on Sustainable Palm Oil (RSPO) sebagai sebuah global multi-stakeholder yang ber inisiatif  untuk mendorong pertumbuhan dan penggunaan minyak sawit yang berkelanjutan.

Adapun Alamat Asian Agri Group ialah sebagai berikut :

Asian Agri Group . Perusahaan bidang usaha Minyak Kelapa Sawit / Palm oil
Uniplaza Building, 6th Floor, Jl. Letjen. MT. Haryono No. A-1
Medan 20231
Telp. (061) 4532155, Telp. (061) 4532388, Telp. (061) 4532532
Fax. (061) 4532095



Asian Agri Group (Perwakilan Jakarta) . 
Perusahaan bidang usaha Minyak Kelapa Sawit / Palm oil
Jl. MH. Thamrin No. 31
Jakarta Pusat 10230
Telp. (021) 23586611
Fax. (021) 23586620



Memilih Minyak Goreng yang Sehat

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Tabel kandungan Minyak Goreng
Memilih jenis minyak goreng sama pentingnya dengan menentukan kualitas minyak dan melakukan penggorengan sendiri di rumah. Karena ada banyak jenis minyak goreng yang sering digembar-gemborkan aman bagi kesehatan, ternyata justru memiliki potensi bahaya.
Yang jelas-jelas tidak aman adalah minyak jelantah. Minyak jelantah adalah minyak bekas yang sudah pernah dipakai, sehingga sudah mengandung akrilamida, radikal bebas, dan asam lemak trans. Terlebih kalau warnanya sudah agak kecoklatan, dan teksturnya kental. Berdasarkan ada atau tidaknya ikatan ganda dalam struktur molekulnya, minyak  dapat dibagi menjadi tiga kelompok, yakni:

(1)  minyak dengan asam lemak jenuh (saturated fatty acids)
Asam lemak jenuh antara lain terdapat pada air susu ibu (asam laurat) dan minyak kelapa. Sifatnya stabil dan tidak mudah bereaksi/berubah menjadi asam lemak jenis lain.

(2) minyak dengan asam lemak tak jenuh tunggal (mono-unsaturated fatty acids) maupun majemuk (poly-unsaturated fatty acids)
Asam lemak tak jenuh memiliki ikatan atom karbon rangkap yang mudah terurai dan bereaksi dengan senyawa lain, sampai mendapatkan komposisi yang stabil berupa asam lemak jenuh. Banyak terdapat pada minyak sayur seperti minyak kedelai, minyak canola, minyak bunga matahari, minyak kelapa sawit, dll. Karena jika dipakai untuk menggoreng, asam lemak tak jenuh justru lebih mudah membentuk akrilamida, radikal bebas, dan lemak trans yang berbahaya!

Gambar di samping ini menunjukkan perbandingan kandungan asam lemak jenuh, asam lemak tak jenuh tunggal, maupun asam lemak tak jenuh ganda dari berbagai jenis minyak.

(3) minyak dengan asam lemak trans (trans fatty acid)
Asam lemak trans banyak terdapat pada lemak hewan, margarin, mentega, minyak terhidrogenasi, dan terbentuk dari proses penggorengan. PANJANG-PENDEK RANTAI KARBON

Selain dibedakan berdasarkan struktur molekulnya, minyak dapat dibedakan berdasarkan panjang-pendek rantai karbonnya. Minyak kelapa merupakan minyak yang 92%-nya mempunyai panjang rantai karbon sedang (medium chain fatty acids=MCFA). Di sana diubah menjadi energi, kolesterol, dan sisanya ditimbun menjadi jaringan lemak. Menurut penelitian, yang paling banyak kandungan LCFA-nya adalah minyak safflower (78%), disusul minyak bunga matahari (69%), dan minyak canola (31%). Kandungan  LCFA minyak zaitun berkisar 9%, sedang yang paling rendah adalah minyak kelapa (2%).

di summary dari rumah kanker :
http://rumahkanker.com/pencegahan/pencegahan/69-minyak-goreng-yang-aman

Oil Palm Plantations Expand on Degraded Land in Amazon

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Oil Palm Plantations Expand on Degraded Land in Amazon

Brazil hopes to eventually become a major producer of palm oil, thanks to the expansion of this new exotic monoculture crop in the eastern Amazon jungle, where eucalyptus plantations are also mushrooming on broad swaths of already deforested land.

The northern Brazilian state of Pará is becoming the land of the African oil palm (Elaeis guineensis), after earning a reputation as the Amazon jungle state to lose the largest amount of native forest to agriculture, livestock, logging and the production of charcoal used in local iron foundries.

The biofuels subsidiary of Brazil's state-owned oil giant Petrobras has set a goal of producing 420,000 tonnes a year of palm oil, double the country's current output, with two projects in Pará. Seventy percent of the company's production will go to Portugal, where it will be turned into biodiesel to supply Europe, in a partnership with the Portuguese state-run oil company Galp Energía.

The subsidiary, Petrobras Biocombustível, is planting oil palm on 6,000 hectares of land, and growing seedlings to cover a total of 74,000 hectares.

"Our focus is the growing biodiesel market," despite the good prices paid by the food and cosmetics industries, Janio Rosa, Petrobras Biocombustível's director of agricultural supplies, told IPS.

The Brazilian mining company Vale, the world's largest producer and exporter of iron ore, launched a project in 2009 to produce 160,000 tonnes a year of biodiesel as of 2014, to reduce transportation costs in its railways and ports by switching from conventional diesel.

To that end the company, which was privatised in 1997, is planting 60,000 hectares of oil palm in six different areas of the state of Pará, where its main mineral reserves are located, in the Serra do Carajás.

But it will take Brazil many years to make significant headway into foreign markets. This year it produced a mere 0.5 percent of the world total of 46 million tonnes. And it takes oil palms three years to begin to produce fruit, and eight years to reach full maturity.

In May, the government launched a sustainable oil palm production programme, which offers incentives like soft loans, and technical support.

An agro ecological survey identified 31.8 million hectares of abandoned and degraded agricultural areas suitable for oil palm production in the country, nearly equivalent to the size of Germany. But it only authorised plantations on 4.3 million hectares, most of which are in Pará.


The high levels of productivity of oil palm in land near the equator opens up the possibility of diversifying the raw materials used to produce biodiesel in Brazil, where 85 percent of the biofuel is now produced with soy, and of making this country a major exporter of the fuel.

Brazil now imports half of the 450,000 tonnes a year of biodiesel that it consumes.

With a projected annual yield of six tonnes per hectare of oil palm, which has an average productive life span of 25-28 years and is harvested year-round, combined with a growing market for biofuels, the profit margin is ensured, Rosa said. Because of this, investment in biodiesel projects makes sense, even though palm oil fetches higher prices today in the food and chemical industries.

But Agropalma, the only large palm oil producer in Brazil today, "temporarily" stopped producing biodiesel in August, because its prices were not competitive in the public tenders for supply contracts, even though it was making use of the waste products from the oil refining process.

In Colombia, Latin America's leading producer of biodiesel, it took subsidies to get the industry going. When the government purchases biodiesel, it pays the market price for vegetable oil plus the costs of conversion, explained Jens Mesa, executive president of that country's National Federation of Oil Palm Growers (Fedepalma).

With its output of 800,000 tonnes a year, Colombia also leads the production of palm oil in Latin America, thanks to the persistence of the private sector, organised in Fedepalma since 1962, Mesa told IPS.

The government's support was "intermittent" until the adoption of a 2004 law stipulating a minimum blend requirement in diesel fuel of 10 percent biodiesel by 2010, he said.

In Brazil, diesel fuel vehicles will have to run on a five percent biodiesel blend as of January. That target had originally been set for 2013.

Colombia has "three million hectares of land highly suitable for the cultivation" of oil palm, as well as the 365,000 hectares already planted, Mesa said.

Oil palm cultivation is "the only rural activity for which an environmental permit is required" in Colombia, and it benefits 6,000 families of small farmers, he said, refuting criticism by environmentalists.

Central and South America have emerged as a new frontier for African oil palm, in response to growing demand.




But Latin America is seeking to avoid the deforestation and social impacts seen in Indonesia and Malaysia, which together account for 85 percent of global production of palm oil.

The Round Table on Sustainable Palm Oil (RSPO) was formed in 2004 by a diverse group of stakeholders -- oil palm producers, palm oil processors or traders, consumer goods manufacturers, retailers, banks and investors, and environmental and social NGOs -- to promote sustainable agriculture, address the environmental impact of palm oil and certify products as environmentally and socially sustainable.

To that end, the RSPO has established environmental, social and legal requirements to curb deforestation, allowing expansion of oil palm plantations only on land that has already been degraded.

Petrobras Biocombustível also puts a priority on social inclusion, setting a goal of contracting 2,250 family farmers to produce half of the raw material in one project and 20 percent in its second project, which is focused on export.

Adherence to the laws, reforestation with native fruit trees, education and awareness-raising, and environmental research will form part of the projects, Rosa said.

"Diversity builds," he said, stressing Petrobras Biocombustível's commitment to cooperating with small and large farmers and to restoring forests where the land cleared has exceeded the legal limit.

Under Brazilian law, 80 percent of the forest must be preserved on any property in the Amazon.

Despite these safeguards, environmentalists and social activists are critical of the expansion of oil palm plantations.

"We are opposed to any large-scale monoculture, even trees," in defence of biodiversity and a more balanced climate, said João Pedro Stédile, one of the leaders of the Landless Workers' Movement (MST) and the Via Campesino international peasant movement.

The native rainforest in Pará is vital to the climate in South America, because of the circulation of humid North Atlantic easterly trade winds in the eastern Amazon, which provide a large part of the rain in the jungle, scientists point out.

In addition, the evaporation from the Amazon jungle, diverted to the south by the Andes mountains, irrigates the most productive agricultural lands in Brazil, Argentina and Paraguay.

Another risk involves plant health. Turning Pará into "a sea of palm trees" will make it very difficult to control pests, warned José Stanley de Oliveira, Agropalma's phytosanitary manager, who with a team of assistants has so far been able to control the numerous enemies of the oil palm.

There are two especially dangerous pests: the Eupalamides cyparissias borer, which bores into different parts of the tree, and the Rhynchophorus palmarum palm weevil, the main vector of the red ring syndrome in coconut and oil palm, which is "incurable," Oliveira said.

Biological pest control is the chosen method due to environmental concerns and because "there are only two insecticides" registered for oil palm plantations in Brazil, he added.

Demand for vegetable oils will continue growing faster than the world population and economy, and 13 million additional hectares of oil palm will be needed to meet demand in 2050, according to projections by Conservation International researcher Timothy Killeen. Demand for soy, meanwhile, will require an additional 93 million hectares of the crop.

The high oil yield of oil palm trees and the fact that palm oil does not contain unhealthy trans fats explain the dizzying growth of global palm oil production, which has increased more than nine-fold since 1980.

Court decision upsets plantation companies

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Court decision upsets plantation companies

The Jakarta Post, The Constitutional Court’s recent decision to approve a request from a number of local governments to change an article in the Forestry Law has raised uncertainties over the legal status of land owned by plantation companies and forest concession owners.

The chairman of the Indonesian Forestry Businessmen Association (APHI), Nanang Rofandi, said in Jakarta on Friday that with the court’s decision, the association’s members felt that the status of their land had become uncertain.

“The ruling raises a lot of questions and confusion among us and we now have no certainty in carrying out our business,” Nanang told The Jakarta Post.

On Feb. 21, the court issued a ruling to drop the phrase “allocated and/or”, which appears in the third paragraph of the Forestry Law’s first article, at the request of regents from five regencies in Central Kalimantan on the ground that the phrase made the article contrary to the 1945 Constitution.

The regents also argued that the full sentence, which reads: “A forested area is a certain area that is ‘allocated and/or’ determined by the government as a permanent forest area”, gave an absolute authority to the central government to declare some of their areas as permanent forests.

With the original article, the plaintiff said, the central government had the power to determine non-forest areas, which are already owned by local people, to become forest areas. But legal experts say that the removal of the phrase could lend even more power to the government in determining forest areas.

Legal expert Hikmahanto Juwana, who is also the dean of the University of Indonesia’s Law Faculty, said the deletion of the phrase did not really change the meaning because there was no explanation on the legal implication of the change.

“When we talk about the government, which government are we talking about? The word ‘government’ is misleading because it can mean the central government or the local government,” Hikmahanto told the Post.

He said that both central and local governments should sit together and discuss further about the forestry issue. He also said that the ruling still needed to make an explanation in order to make everything clear.

“We discussed this issue at the Forestry Ministry today. We want them to issue circulars that will help us to retain legality in our business,” he said.

In line with the APHI, the Indonesian Palm Oil Producers’ Association (GAPKI) also said that the legality of palm oil business activity in Indonesia has become unclear following the courts’ decision.

“The ruling brings a lot of problems. We are going to consult with legal experts about this issue in order to get some clarity for our business,” GAPKI’s executive director, Fadhil Hasan, told the Post.

In a separate interview, Greenomics Indonesia executive director Elfian Effendi said that all the Forestry Ministry’s decrees on provincial forestry area allocations issued after Sept. 30, 1999, no longer had a legal base as one of the reasons why the court decided to change the article was because it contravened the Constitution.

Elfian added that the court’s ruling also effectively delegitimized the presidential decrees on new permits and prime forest management, and the forest spatial management plan (RTRW) in Sumatra, Kalimantan and Sulawesi by removing their legal foundation.

“This is because the RTRW uses map attachments from a ministerial decree that was issued after Sept. 30, 1999,” he said.

In addition, Greenomics said the ruling would also affect the Master Plan for the Acceleration and Expansion of Indonesia’s Economic Development (MP3EI) because some of the economic programs included in the MP3EI were based on ministerial decrees issued after Sept. 30, 1999, when the Forestry Law became effective.

In a separate interview, Forestry Minister Zulkifli Hasan said that the ruling did not disadvantage any party, including businesspeople.

“There is no party that is disadvantaged by the ruling,” Zulkifli told the Post.

He said the ruling benefited the government because it could help speed up the program to establish forest boundaries in the country. “This will strengthen efforts in establishing the forest land-use plan [TGHK],” he said.

The minister added that the TGHK was very important for Indonesia as the country possessed some 95 million hectares of forested land — the largest amount in Southeast Asia — and played an important role in the global fight against climate change and reducing gas emissions.

In addition, he said he had urged all regents across the country to make an extra effort to accelerate the establishment of forest boundary areas in their respective regions. He gave local governments three months to complete the task.

According to Tahrir Fathoni, the ministry’s human resources development chief, the ministry has requested assistance from consultants and academics to help accelerate the task.

Tahrir said the ministry had outsourced more than 1,000 people to get the job done.

Normally, it takes a full year to obtain the results of a boundary area. (nfo)

Glycerol | Glycerine | Glycerin

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Glycerol | Glycerine | Glycerin
Glycerol (or glycerine, glycerin) is a simple polyol compound. It is a colorless, odorless, viscous liquid that is widely used in pharmaceutical formulations. Glycerol has three hydroxyl groups that are responsible for its solubility in water and its hygroscopic nature. The glycerol backbone is central to all lipids known as triglycerides. Glycerol is sweet-tasting and of low toxicity.
Glycerol forms the backbone of triglycerides, and is chiefly produced by saponification of fats as a byproduct of soap-making.

It is also a byproduct of the production of biodiesel via transesterification. This form of crude glycerin is often dark in appearance with a thick, syrup-like consistency. Triglycerides (1) are treated with an alcohol such as ethanol (2) with catalytic base to give ethyl esters of fatty acids (3) and glycerol (4):

Glycerol is also produced by various routes from propylene. The epichlorohydrin process is the most important; it involves the chlorination of propylene to give allyl chloride, which is oxidized with hypochlorite to dichlorohydrins, which reacts with a strong base to give epichlorohydrin. Epichlorohydrin is then hydrolyzed to give glycerol.

Because of the emphasis on biodiesel, where glycerol is a waste product, the market for glycerol is depressed, and the old epichlorohydrin process for glycerol synthesis is no longer economical on a large scale. Glycerol can be removed from the process by using a special enzyme that breaks down phytol and starches. This enzyme is biologically produced using a genetically engineered bacterium. Because there is no glycerin produced as a by-product, the biodiesel purity is greatly improved and costs can be reduced.

Only one producer for synthetic glycerol is left, because high-quality glycerol is needed in highly sensitive pharmaceutical, technical and personal care applications. Raw materials used to make glycerol include animal fats, such as beef tallow, and vegetable oils, such as coconut and soybean. Approximately 950,000 tons per annum are produced in the USA and Europe; 350,000 tons of glycerol were produced per year in the United States alone from 2000-2004. Production will increase as the EU directive 2003/30/EC is implemented, which requires the replacement of 5.75% of petroleum fuels with biofuel across all Member States by 2010. It is projected that by the year 2020, production will be six times more than demand.

Exclusive: Malaysian exporters halt palm oil supply to Iran

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(Reuters) - Malaysian palm oil exporters have stopped supplying Iran with most of the 30,000 tonnes of the food staple the Middle Eastern country buys each month, or about half its demand, as Western financial curbs on Tehran stymie payments, two trading sources said.

The halt in Malaysia's palm oil exports to Iran, which the traders said started late last year, is the latest sign that sanctions aimed at persuading Tehran to abandon a suspected nuclear weapons program have started to bite.

The sanctions, spearheaded by the United States and European Union, have made it difficult for Iranian palm oil buyers to use letters of credit and make payments via middlemen in the United Arab Emirates (UAE) to Malaysian exporters.

Malaysia is the world No.2 producer of palm oil, used to make products from bio-diesel to cooking oil. It is a key supplier of Iran's palm oil, along with Indonesia, the world's top producer.

"Most of the companies selling palm oil to Iran have stopped since the end of last year," one trader with direct knowledge of the deals told Reuters on Wednesday.

"Payments are not coming through and no palm oil shipper wants to risk sending the cargoes to Iran with such a tense political situation," added the trader, who declined to be identified due to the sensitivity of the issue.

Malaysia's Commodities Ministry and the Malaysian Palm Oil Council (MPOC) -- the country's key marketing agency for the tropical oil -- were not immediately available for comment.

SANCTIONS PINCH

The United States slapped fresh sanctions on Tehran from the start of this year, targeting financial institutions that deal with the central bank, hoping to stem Iran's oil revenues.

U.S. President Barack Obama tightened sanctions on Iran another notch this month, again targeting its central bank and giving U.S. banks new powers to freeze assets linked to Tehran. The European Union has agreed to ban Iranian oil imports, a measure expected to take full effect within six months.

Iran, with a population of 74 million people, is finding it difficult to repatriate the hard currency from crude oil exports -- the major earner of the foreign currency it needs to pay for shipments of food and other imports.

Iranian buyers defaulted on payments for about 200,000 tonnes of rice from their top supplier India, exporters and rice millers told Reuters on Tuesday.

Ukrainian and European traders said they were no longer booking Ukraine grain shipments to Iran because of the payment difficulties.

Despite the halt in palm oil exports, traders in Kuala Lumpur said some Iranian buyers had continued to make enquiries, mostly for crude palm oil cargoes.

"They keep asking in the spirit of Muslim brotherhood. The last I heard was an enquiry for 5,000 tonnes for February or March delivery, but no one wants to take that risk now," a second trader said.

IRAN SEEN AS IMPORTANT MARKET

Last year Malaysia exported 342,256 tonnes directly to Iran, equivalent to a month's volume of shipments to China, data from industry regulator the Malaysian Palm Oil Board (MPOB) show. At current market prices, that would be valued at $376 million.

Iran is seen as an important market as it has forked out more than half a billion dollars annually for edible oil shipments from Southeast Asia and South America.

This prompted the Malaysian Palm Oil Council to ask Malaysian palm oil firms to consider setting up refineries, packaging plants and bulking installations in the Iranian port of Bandar Abbas to avoid "the hassles of importation."

The second trader said, "To date, no Malaysian company has taken up that offer although a state plantation company might be looking at it. No one in their right mind wants to be caught there if things go belly-up."

Before the export halt, Malaysian palm oil firms would either sell directly to Iran or ship via Dubai, where edible oil would be stored in warehouses and repackaged before heading to the Bandar Abbas port.

About 90 percent of the UAE's imports of palm oil are marked for re-export, with Iran as a key destination, traders said. In 2011, the UAE imported about 400,000 tonnes of palm oil products, according to MPOB data.

Iranian buyers may still be buying cargoes via intermediaries, an official of a Singapore palm oil firm with refineries in Malaysia said.

"We sell to the different parties and they may or may not take it to Iran," said the official in Singapore. "I am saying we keep selling, so I don't know if it goes or does not go to Iran."

(Additional reporting by Chew Yee Kiat in SINGAPORE; Editing by Stuart Grudgings and Himani Sarkar)

Plant Oils As Fuels | Present State Of Science And Future Developments

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Plant Oils as Fuels: Present State of Science and Future Developments
Plant Oils as Fuels: Present State of Science and Future Developments


Plant Oils as Fuels: Present State of Science and Future Developments Description:
Among renewable energy resources, Biodiesel fuel made from rapeseed is of special importance in Europe. Economical, technological, ecological and toxicological arguments have been advanced implying that, at present, Biodiesel is at best just a "niche" product that can only compete with traditional fossil diesel fuel because of significant tax incentives. Given the present state of knowledge in these very different areas, the decisive question to be asked is whether the competitiveness, and thus marketability, of Biodiesel can be enhanced by biotechnological manipulations of the rape plant.

 Product Details
    Paperback: 276 pages
    Publisher: Springer; 1 edition (May 15, 1999)
    Language: English
    ISBN-10: 3540647546
    ISBN-13: 978-3540647546
    Product Dimensions: 9.2 x 6 x 0.7 inches
    Shipping Weight: 1 pounds
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Price: LOWEST PRICE

Palm Biodiesel

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Palm biodiesel is an alternative fuel derived from palm oil and can be used in compression ignition engines, i.e. diesel engines without any modifications. It refers to methyl esters derived from palm oil through a process known as ‘transesterification’.

What is the difference between biofuels and biodiesel?

Biofuels are alternative fuels derived from renewable natural resources, e.g. vegetable oils and their derivatives, bioethanol,biomass, etc.
Biodiesel refers to alkyl esters of long chain fatty acids derived from vegetable oils and their derivatives, animal fats, waste oils, etc. Therefore, biodiesel is one type of biofuel.

Who was behind the initial research and development (R&D of biodiesel from palm oil?

Malaysian Palm Oil Board (MPOB) started the R&D of biodiesel from palm oil and its products way back in 1982. Since then, MPOB has conducted extensive R&D in using palm biodiesel as a diesel substitute.

What is ENDO DIESEL ?

ENDO DIESEL is the brand name for the blends of processed palm oil and petroleum diesel.

What is processed palm oil?

Processed palm oil is the oil that can be used for blending with petroleum diesel. It can be trefined, bleached, deodorized pakm olein or palm methyl esters.

Why should we use palm biodiesel ?

Palm biodiesel is renewable, biodegradable, non toxic and safe to handle (flash point higher than petroleum diesel) and especially free of sulphur. It also provides a safety net to stabilize the price of palm oil by removing surplus stock.

Is palm biodiesel a sustainable energy?

Generally, sustainable energy is about using energy wisely, and using energy produced by clean technologies or from renewable sources and causes no long-term damage to the environment. Palm biodiesel produced in Malaysia is from palm oil, which is produced in a sustainable manner and their use conserves our crude petroleum reserve and contributes to our economy. Malaysian palm biodiesel is therefore a sustainable energy.

Is palm biodiesel economically viable with current palm price of over RM3,300 per tonne?

Generally, it is not economically viable to use palm biodiesel in Malaysia as our petroleum diesel is relatively cheap due to the subsidy given by the government. It is very feasible for overseas markets where the petroleum diesel is very expensive and price for biodiesel is high. This makes palm biodiesel very competitive as palm oil is cheaper than other vegetable oils.

Palm oil: For food or for fuel?

The main proportion of palm oil will still be used for food. As for today, only limited biodiesel factories using palm oil as the feedstock have been built.

What is the effect of palm biodiesel on the price of palm oil as a commodity?

Generally, the demand for this commodity is increasing rapidly because of the increasing demand of edible oil in consumer countries, especially China, European Union, Pakistan, India and the United States. The use of palm oil as biodiesel feedstock also contributes to this increased demand and to some extent helps to enhance palm oil prices.

Can biodiesel be used directly in diesel engine?

Yes, neat palm biodiesel (staright non-mixed biodiesel) can be used as fuel in diesel engines without any engine modifications. It can also be blended in any proportion with petroleum diesel.

What are the other potential application of palm biodiesel?

It can be used as heating fuel in domestic and commercial boilers. Biodiesel exhibits better solvency power and this is a better solvent than petroleum-based solvent. Palm biodiesel can be also used as feedstock for oleochemical industry such as a sulphonated metyl esters for the production of liquid detergent.

What are the environmental benefits of using Palm biodiesel?

Various studies indicate that sulphur dioxide, hydrocarbons, carbon ,carbon monoxide and carbon dioxide emissions and particulate matters are reduced with the use of biodiesel. Biodiesel has a higher octane number that improves engine performance and cleaner emissions compared to petroleum diesel.

Can palm oil compete with the other vegetable oils as feedstock for biofuel and biodiesel?

One of the important criteria for any available oil to be used as biofuel is availability at competitive price. Palm oil meets this criterion perfectly. The development of palm oil industry in Malaysia has been remarkable. Within a relatively short period of time, we have become the world largest producer and exporter of palm oil products in the international oil and fats market. Furthermore, the advantage which palm oil holds over other oils and fats lies in its productivity, yield, and efficiecy factors. Oil palm is the most productive oil bearing plant species known. The yield of palm oil per net area is 5 and 10 times higher than rapeseed and soybean oil, respectively.

What is the quality of the palm biodiesel produced using our homegrown technology?

The quality of the palm biodiesel produced using MPOB biodiesel production technology meets the stringent specification of the International Biodiesel Specifications of ASTM d 6751 and EN 14214.

What other benefits can be derived from a palm biodiesel project?

It creates a new business and job opportunities for Malaysia. It also provides opportunity to manufacture phytonutrients such as carotenes (pro-vitamin A) and vitamin E.

What is the status of implementation of using biodiesel in Malaysia?

In Malaysia, instead of using methyl esters biodiesel to blend with diesel, we are using refined, bleached and deodorized palm olein. We are testing this blend in the vehicles of government agencies, commercial buses and deep-sea fishing boats. At the same time, we are conducting ‘no harm’ tests of this blend with an independent petroleum institute and trying to convince engine manufacturers to extend their warranties to this blend.

Is the blended fuel easily available throughout Malaysia?

If it is implemented in our country, it will be easily available throughout Malaysia.

What will happen to our car engine if we revert to petroleum diesel after using palm biofuel?

The car engine should encounter no problem as studies have been shown that palm biodiesel and petroleum diesel can be blended in any proportion.

What is the government’s policy on biofuels?

The government released the National Biofuel Policy in March 2006. The policy has five thrusts __use of biofuel for transport; research, development and commercialization of biofuel technologies; production of biofuel for export; and use of biofuels for a cleaner environment.

# Source : Malysian Palm Oil Board (MPOB)

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