Immobilized phospholipase A1-catalyzed modification of phosphatidylcholine with n-3 polyunsaturated fatty acid

Tingting Zhao, Da Som No, Byung Hee Kim, Hugo S. Garcia, Yangha Kim, In-Hwan Kim

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

n-3 Polyunsaturated fatty acids (n-3 PUFA)-enriched phosphatidylcholine (PC) was successfully produced with fatty acid from fish oil and PC from soybean by immobilized phospholipase A1-catalyzed acidolysis. Detailed studies of immobilization were carried out, and Lewatit VP OC 1600 was selected as a carrier for preparation of immobilized phospholipase A1, which was used for modification of PC by acidolysis. For acidolysis of PC with n-3 PUFA, the effects of several parameters, namely, water content, temperature, and enzyme loading on the reaction time course were investigated to determine optimum conditions. The optimum water content, temperature, and enzyme loading were 1.0%, 55 C, and 20%, respectively. The highest incorporation (57.4 mol%) of n-3 PUFA into PC was obtained at 24 h and the yield of PC was 16.7 mol%. The yield of PC increased significantly by application of vacuum, even though a slight decrease of n-3 PUFA incorporation was observed.

Original languageEnglish
Pages (from-to)132-140
Number of pages9
JournalFood Chemistry
Volume157
DOIs
Publication statusPublished - 2014 Aug 15

ASJC Scopus subject areas

  • Food Science
  • Analytical Chemistry

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