Document Detail


Lipase-catalysed production of triacylglycerols enriched in pinolenic acid at the sn-2 position from pine nut oil.
MedLine Citation:
PMID:  21953622     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The purpose of this study was to produce triacylglycerols (TAGs) enriched in pinolenic acid (PLA) at the sn-2 position using the principle of acyl migration, from the pine nut oil containing PLA esterified exclusively at the sn-3 position.
RESULTS: Two types of lipase-catalysed reactions, i.e. redistribution and reesterification of fatty acids, were successively performed using seven commercially available lipases as biocatalysts. Of the lipases tested, Novozym 435 and Lipozyme TL IM were effective biocatalysts for positioning PLA at the sn-2 location. These biocatalysts were selected for further evaluation of the effects of reaction parameters, such as temperature and water content on the migration of PLA residues to the sn-2 position and TAG content. For both lipases, a significant decrease in TAG content was observed after the lipase-catalysed redistribution of fatty acids for both lipases. The reduced TAG content could be enhanced up to approx. 92%, through lipase-catalysed re-esterification of the hydrolysed fatty acids under vacuum.
CONCLUSION: TAG enriched in PLA at the sn-2 position was synthesised from pine nut oil via lipase-catalysed redistribution and re-esterification of fatty acid residues using Lipozyme TL IM and Novozym 435 as biocatalysts.
Authors:
Jong-Hun Choi; Byung Hee Kim; Seung In Hong; Chong-Tai Kim; Chul-Jin Kim; Yangha Kim; In-Hwan Kim
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-09-23
Journal Detail:
Title:  Journal of the science of food and agriculture     Volume:  92     ISSN:  1097-0010     ISO Abbreviation:  J. Sci. Food Agric.     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-02-07     Completed Date:  2012-06-21     Revised Date:  2012-06-22    
Medline Journal Info:
Nlm Unique ID:  0376334     Medline TA:  J Sci Food Agric     Country:  England    
Other Details:
Languages:  eng     Pagination:  870-6     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Society of Chemical Industry.
Affiliation:
Department of Food and Nutrition, Korea University, Seoul, Republic of Korea.
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MeSH Terms
Descriptor/Qualifier:
Appetite Depressants / analysis,  chemistry,  metabolism
Bacterial Proteins / metabolism
Dietary Supplements / analysis
Enzymes, Immobilized / metabolism
Esterification
Fatty Acids / analysis
Fungal Proteins / metabolism*
Hot Temperature
Hypolipidemic Agents / analysis,  chemistry,  metabolism
Isomerism
Linolenic Acids / analysis,  metabolism*
Lipase / metabolism*
Nuts / chemistry
Pinus / chemistry*
Plant Oils / chemistry*,  metabolism
Seeds / chemistry
Triglycerides / analysis,  chemistry,  metabolism*
Vacuum
Chemical
Reg. No./Substance:
0/Appetite Depressants; 0/Bacterial Proteins; 0/Enzymes, Immobilized; 0/Fatty Acids; 0/Fungal Proteins; 0/Hypolipidemic Agents; 0/Linolenic Acids; 0/Plant Oils; 0/Triglycerides; 13237-97-3/5,9,12-octadecatrienoic acid; EC 3.1.1.-/Lipozyme; EC 3.1.1.-/Novozyme 435; EC 3.1.1.3/Lipase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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