OLEIC ACID ENHANCEMENT IN USED FRYING PALM OIL VIA ENZYMATIC ACIDOLYSIS

Abstract A highly efficient sophorolipid (SL) fermentation process using dual lipophilic substrates (DLS) was developed. Using DLS consisting of palm oil and oleic acid in the flask fermentation with SL-producing yeast Starmerella bombicola, the productivity and yield of SL improved 2.4- and 1.7-times, in comparison to when using palm olein alone. In the jar fermentation process with DLS, the SL productivity and yield of 127 g/L and 62.4% was achieved in 7 days, with the complete consumption of residual lipophilic substrates in the culture medium. This process was successfully applied to the effective conversion of waste frying oil to SL, maintaining a high SL productivity and yield of 142.8 g/L and 72% in 9 days. It is concluded that the newly developed fermentation process with DLS can be useful for industrial production of SL from renewable biological sources, especially waste frying oils.

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Effect of dietary inclusion of high-oleic acid sunflower seed on the utilization of crude palm oil by broiler chickens

Journal of Animal and Feed Sciences ◽

10.22358/jafs/66740/2007 ◽

2007 ◽

Vol 16 (2) ◽

pp. 214-224

Author(s):

C. Alzueta ◽

L. Ortiz ◽

M. Rodríguez ◽

A. Rebolé ◽

J. Treviño

Keyword(s):

Oleic Acid ◽

Palm Oil ◽

Sunflower Seed ◽

Broiler Chickens ◽

High Oleic Acid ◽

Crude Palm Oil ◽

High Oleic

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Synthesis of palm oil based polymeric ester through cationic addition polymerisation method

Malaysian Journal of Fundamental and Applied Sciences ◽

10.11113/mjfas.v17n1.1524 ◽

2021 ◽

Vol 17 (1) ◽

pp. 16-19

Author(s):

Yan Irawan ◽

Ika Juliana ◽

Emil Budianto

Keyword(s):

Oleic Acid ◽

Palm Oil ◽

Methyl Esters ◽

Initial Step ◽

Molar Ratio ◽

Polymeric Surfactant ◽

Esterification Reaction ◽

H Nmr ◽

Reaction Conversion ◽

Distribution Type

In this study, the synthesis of palm oil-based polymeric ester for application as a polymeric surfactant was carried out by a cationic addition polymerisation method through two steps. The initial step is a synthesis of fatty acid methyl esters oleate (FAMEO) through esterification reaction between oleic acid and methanol. The optimum conditions of the esterification reaction were carried out at a temperature of 70–80oC for 4 hours with the addition of 1wt% sulfuric acid as a catalyst. The molar ratio between oleic acid and methanol was 1:3. FAMEO was analysed using GCMS to determine the methyl ester content. The second step is the polymerisation of FAMEO. The polymerisation reaction of FAMEO was carried out at 120, 140, and 160oC with 1wt%, 3wt% and 5wt% of boron trifluoride dihydrate as a catalyst and an initiator of polymerisation reaction for 4 to 24 hours of reaction. The reaction conversion of the product was 66%. The polymeric ester was analysed H-NMR. Meanwhile, the molecular weight of that product was 1714 g/mol which analysed using GPC and the PDI was 1.12346 or equal to 1.12. It means that the polymerisation technique was controlled or living polymerisation, which indicates that the distribution type of this product was narrow monodisperse.

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Effect of Crystallization Temperature of Palm Oil on Its Crystallization. III. Crystallization of Triacylglycerin Comprised of Palmitic Acid and Oleic Acid in Palm Oil

Journal of Oleo Science ◽

10.5650/jos.55.397 ◽

2006 ◽

Vol 55 (8) ◽

pp. 397-402 ◽

Cited By ~ 2

Author(s):

Hiroaki MIHARA ◽

Takashi ISHIGURO ◽

Hidenori FUKANO ◽

Shigeyuki TANIUCHI ◽

Keizo OGINO

Keyword(s):

Oleic Acid ◽

Palmitic Acid ◽

Palm Oil ◽

Crystallization Temperature

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D-optimal Design Optimization for the Separation of Oleic Acid from Malaysian High Free Fatty Acid Crude Palm Oil Fatty Acids Mixture Using Urea Complex Fractionation

Applied Science and Engineering Progress ◽

10.14416/j.asep.2021.03.004 ◽

2021 ◽

Vol 14 (2) ◽

Author(s):

Murad Bahadi ◽

Nadia Salih ◽

Jumat Salimon

Keyword(s):

Fatty Acids ◽

Oleic Acid ◽

Fatty Acid ◽

Free Fatty Acid ◽

Vegetable Oils ◽

Palm Oil ◽

Low Cost ◽

High Free Fatty Acid ◽

Urea Complex ◽

Crude Palm Oil

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.

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