scholarly journals FREE FATTY ACIDS SEPARATION FROM MALAYSIAN HIGH FREE FATTY ACID CRUDE PALM OIL USING MOLECULAR DISTILLATION

2016 ◽  
Vol 20 (5) ◽  
pp. 1042-1051 ◽  
Author(s):  
Jumat Salimon
2016 ◽  
Author(s):  
Abd Al-Wali Japir ◽  
Jumat Salimon ◽  
Darfizzi Derawi ◽  
Murad Bahadi ◽  
Muhammad Rahimi Yusop

2021 ◽  
Vol 14 (2) ◽  
Author(s):  
Murad Bahadi ◽  
Nadia Salih ◽  
Jumat Salimon

Oleic acid (OA) rich vegetable oils is important for the daily essential dietary oils intake but restrict to particular oil such as olive oil. However OA enrichment to other vegetable oil such as palm oil is always possible. OA can be obtained from cheap resources such as high free fatty acid crude palm oil (HFFA-CPO). OA concentrate from HFFA-CPO fatty acids mixture requires efficient and low cost technique. Urea complex crystallization fractionation is a classic method for fractionating saturated and monounsaturated fatty acids from polyunsaturated fatty acids of many vegetable oils. In this work, the separation and purification of oleic acid (OA) from unsaturated fatty acids mixture fraction (USFA) of HFFA-CPO fatty acids mixture by urea complex fractionation (UCF) was studied. The crystallization reaction conditions of urea inclusion for the non-urea complex fraction (NUCF) were optimized using the response surface methodology (RSM) and the optimal model was developed. The results showed high content of OA (88%) in urea complex fraction (UCF) with 86% yield at optimal conditions of urea-to-USFAs ratio of 4.62 : 1 (w/w), crystallization temperature at –10°C and crystallization time of 24 h. The results have demonstrated that urea complex crystallization fractionation method is a very effective with low cost, stable, obtainable, and comparatively ease to recover of OA from polyunsaturated fatty acids (PUFA) of an oil fatty acids mixture. Pure OA is plausible to be used back for the OA enrichment modification into palm oil for new dietary oil.


2016 ◽  
Vol 28 (11) ◽  
pp. 2549-2554 ◽  
Author(s):  
Abd Al-Wali Japir ◽  
Jumat Salimon ◽  
Darfizzi Derawi ◽  
Murad Bahadi ◽  
Muhammad Rahimi Yusop

2017 ◽  
Vol 9 (2) ◽  
pp. 44-49 ◽  
Author(s):  
Teuku Maimun ◽  
Nasrul Arahman ◽  
Fikriatul Arifah Hasibuan ◽  
Putri Rahayu

Abstract                                                                        One cause of the increase in free fatty acids (FFA) in Crude Palm Oil (CPO) is the activity of lipase-producing microorganisms in the oil palm fruit. Lipase is a biocatalisator which accelerate oil-hydrolysis reaction. High Free Fatty Acid Levels (FFA) will caused rancidity, change the taste and color of the oil. To solve this problem, post-harvest palm fruits should treat with some special treatment, e.g. addition of anti-microbial material, such as liquid smoke The purpose of this study was to determine the effect of liquid smoke on oil palm fruit, the inhibition of elevated levels of free fatty acids (FFA) on CPO. The factors reviewed in this study is the concentration of liquid smoke used; 5, 15, and 25% and the standing time; 12, 16 and 20 hours. The parameters observed in this study are free fatty acids (FFA), water, and impurities. The results showed that the higher the concentration of liquid smoke added, the higher inhibition of oil hydrolysis. CPO levels of FFA decreased at approximately 0,03 to 0,37% after the addition of liquid smoke. Highest inhibition on ALB increase was obtained in the treatment of the sample with the addition of 25% liquid smoke and 12 hours of standing time, which is 2,46%. Keywords: Crude Palm Oil (CPO), Free Fatty Acid (FFA), Water, Impurities, Liquid Smoke.Abstrak       Salah satu penyebab peningkatan asam lemak bebas (ALB) di dalam Crude Palm Oil (CPO) adalah, karena adanya aktivitas mikroorganisme penghasil lipase di dalam buah kelapa sawit. Lipase merupakan biokatalisator yang mempercepat reaksi hidrolisis minyak. Kadar Asam Lemak Bebas (ALB) yang tinggi menyebabkan ketengikan, perubahan rasa dan warna pada minyak. Untuk mengatasi masalah ini, buah kelapa sawit perlu diberi perlakuan khusus, yaitu penambahan bahan anti mikroba pada buah kelapa sawit pasca panen, salah satunya adalah asap cair. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan asap cair pada buah kelapa sawit, terhadap penghambatan peningkatan kadar asam lemak bebas (ALB) pada CPO. Adapun faktor yang ditinjau dalam penelitian ini adalah konsentrasi asap cair yang digunakan, yaitu 5, 15, dan 25% dan waktu pendiaman, yaitu 12, 16, dan 20 jam. Parameter yang diamati dalam penelitian ini antara lain, asam lemak bebas (ALB), air, dan kotoran. Hasil penelitian menunjukkan bahwa semakin tinggi konsentrasi asap cair yang ditambahkan, maka penghambatan hidrolisis minyak semakin tinggi. Kadar ALB pada CPO yang dihasilkan menurun sekitar 0,62 – 2,55% setelah penambahan asap cair. Penghambatan peningkatan ALB tertinggi diperoleh pada perlakuan sampel dengan penambahan 25% asap cair dan waktu pendiaman 12 jam, yaitu 2.46%. Kata kunci : Crude Palm Oil (CPO), Asam Lemak Bebas (ALB), Air, Kotoran (Impuritis), Asap cair (Liquid Smoke)


OCL ◽  
2017 ◽  
Vol 24 (5) ◽  
pp. D506 ◽  
Author(s):  
Abd Al-Wali Japir ◽  
Jumat Salimon ◽  
Darfizzi Derawi ◽  
Murad Bahadi ◽  
Salah Al-Shuja'a ◽  
...  

2010 ◽  
Vol 2 (1) ◽  
pp. 48-54
Author(s):  
Endang Astuti ◽  
Winarto Haryadi ◽  
Sabirin Matsjeh

Palm oil contains unsaturated fatty acids that can be oxidated and can make rancidity of the palm oil. One of the trigliserida degradation products is free fatty acid. The usage of triethylammine (TEA) in the polar-nonpolar mix solvents could enhance the free fatty acids extraction efficiency. Free fatty acids extraction from palm oil was carried out for a minute with solvents ratio: TEA 0,00-0,20M in the following solvent: 0-99% diethyl ether + 99-0% ethanol + 1% water, % volume. The extraction was also performed in the following solvent: TEA 0,00-0,20M in 0-95% heptane + 95-0% isopropanol + 5% water, % volume. Reextraction was conducted for a minute by adding Na2SO4 1M. The alcohol layer which was rich with free fatty acid was taken out and the acid value was determined. As comparison, palm oil's free fatty acids was taken out with standard method by refluxing the sample in 95% alcohol for ten minutes. Identification of the free fatty acids was done by Gas Chromatography-Mass Spectrometer. The best solvent ratio for acid value determination was TEA 0,10-0,20M in the mix-solvent: 19% diethyl ether + 80% ethanol + 1% water, % volume and the extraction product contained 8 kind of free fatty acids. In addition, TEA 0,01M in the solvent: 95% isopropanol + 5% water, % volume could be obtained 8 kind of free fatty acids too. In contrary, the free fatty acid extraction by standard method contained 7 kind of fatty acids. Linoleic acid was the free fatty acid which could not be taken out by standard method. The usage of TEA in the proper polar-non polar mix-solvent was the complete method to determine free fatty acid contained in the palm oil.     Keywords: triethylammine, free fatty acid, organic extraction.


2018 ◽  
Vol 7 (2) ◽  
pp. 108-114
Author(s):  
Dwina Moentamaria ◽  
Achmad Chumaidi ◽  
Nanik Hendrawati ◽  
Girlian Girlian ◽  
Meilita Againa Mustika

The enzymatic hydrolysis of palm oil can be conducted by using lipase produced from Mucor miehei to produce free fatty acid. This study aimed to compare the usage of lipase as free enzyme and as immobilized enzyme on zeolite matrix in the hydrolysis of palm oil as triglyceride producing free fatty acids which highly needed in various industrial sectors. Immobilization is an alternative hydrolysis reaction due to its usage on repetitive reaction, makes lipase reuseable, hence the whole process becomes efficient, and with moderate operational conditions. Solvent free reaction is applied, because the produced free fatty acids can be used directly in food, health, and natural flavorings industry. The palm oil used in the hydrolysis contains 0.815% initial free fatty acids as palmitate, in which water then added to it in weight ratio 1:3. Each effect of free lipase and immobilized lipase addition is 4%, 5%, 6%, 7%, 8%, and time reaction is 30, 60, 90, 120, 150 minutes are used as index to determine the amount of free fatty acids produced.  The results showed that Immobilized lipase has better ability than the free one in hydrolysis of triglyceride in palm oil producing free fatty acid with 8% lipase addition and time reaction of 120 minutes. Palm oil hydrolysis using free lipase produced the highest FFA of 1.9747% after the addition of 5% lipase concentrate, with time reaction of 60 minutes. Meanwhile, palm oil hydrolysis using immobilized lipase produced the highest FFA of 1.9747% after the addition of 8% lipase concentrate, with time reaction of 120 minutes.


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