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Lipase-catalysed production of triacylglycerols enriched in pinolenic acid at the sn-2 position from pine nut oil

Authors
Choi, Jong-HunKim, Byung HeeHong, Seung InKim, Chong-TaiKim, Chul-JinKim, YanghaKim, In-Hwan
Issue Date
15-Mar-2012
Publisher
WILEY-BLACKWELL
Keywords
acyl migration; lipase; pine nut oil; pinolenic acid; redistribution; re-esterification
Citation
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, v.92, no.4, pp.870 - 876
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
Volume
92
Number
4
Start Page
870
End Page
876
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/105296
DOI
10.1002/jsfa.4662
ISSN
0022-5142
Abstract
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. 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 acylmigration, 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 andwater 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. (C) 2011 Society of Chemical Industry
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