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KMID : 1007519920010010031
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Food Science and Biotechnology
1992 Volume.1 No. 1 p.31 ~ p.34
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Enzymatic Removal of Free Fatty Acids in Oils Using Lipase
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Cho Soo-Yeon
Yoon Suk-Hoo
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Abstract
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For the enzymatic deacidification of oil, an immobilized lipase (Lipozyme IM-20) bioreactor was designed using a continuous water removing apparatus under the high vacuum. Enzymatic deacidification conditions were partially optimized for rapid and efficient removal of free fatty acids in soybean oil as follows: vacuum, 1 ㎜Hg; glycerol concentration, 2.5％; lipase concentration, 5％; temperature, 70℃; reaction time, 6 hrs. Eighty five percent of free fatty acids present in soybean oil was remove from the oil within 6 hrs of reaction after free fatty acids were converted into glycerides through enzymatic esterification.
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