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HERO ID
7744897
Reference Type
Journal Article
Title
Lipase-catalyzed acidolysis of perilla oil with caprylic acid to produce structured lipids
Author(s)
Kim, IH; Kim, H; Lee, KT; Chung, SH; Ko, SN
Year
2002
Is Peer Reviewed?
Yes
Journal
Journal of the American Oil Chemists' Society
ISSN:
0003-021X
EISSN:
1558-9331
Publisher
American Oil Chemists' Society
Location
HOBOKEN
Volume
79
Issue
4
Page Numbers
363-367
Language
English
DOI
10.1007/s11746-002-0489-3
Web of Science Id
WOS:000175022600009
Abstract
Structured lipids were synthesized by acidolysis of perilla oil and caprylic acid using two lipases, Lipozyme RM IM from Rhizomucor miehei and Lipozyme TL IM from Thermomyces lanuginosa. Effects of molar ratio, reaction time, reaction temperature, enzyme load, and solvent content on acidolysis reactions were studied. The solvent content ranged from 0.0 (solvent-free) to 85.3%. The results showed that the incorporation increased in parallel with solvent content to 49.0% with Lipozyme RM IM and to 63.8% with Lipozyme TL IM. After 24 h incubation in n-hexane, caprylic acids were incorporated to 48.5 mol% with Lipozyme RM IM and to 51.4 mol% with Lipozyme TL IM, respectively, whereas linolenic acid content was reduced from 61.4 to 31.5 mol% with Lipozyme RM IM and to 28.4 mol% with Lipozyme TL IM, respectively. Lipozyme TL IM showed a higher acyl migration rate than Lipozyme RM IM when acidolysis was performed in the reaction system containing n-hexane as a solvent, whereas the difference in acyl migration between the two lipases in the solvent-free system was negligible.
Keywords
acidolysis; acyl migration; caprylic acid; lipase; perilla oil; structured lipids
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