Potential for utilization of the lipid and DHA-rich fatty acid of integument of squid Ommastrephes bartrami

Cenhua Deng, Kazuo Watanabe, Kazunaga Yazawa, Shun Wada

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Abstract

Lipid and fatty acid compositions of the integument of the squid Ommastrephes bartrami, which is an industrial waste, were assessed for appraisal as a possible new source of phospholipids containing docosahexaenoic acid. Total lipid of wet and dry bases were 2.5 and 14.7%, respectively. Phospholipids was 80, 85% of the total lipid. The major phospholipids were sn-glycero-3-phosphocholine and sn-glycero-3-phosphethanolamine. The sn-glycero-3-phosphocholine consisted of 1,2-diacyl and 1-O-alkyl-2-acyl types, and sn-glycero-3-phosphoethanolamine consisted of 1,2-diacyl, 1-O-alkyl-2-acyl and 1-O-alk-1'-enyl-2-acyl types. Docosahexaenoic acid was a major fatty acid in both 1,2-diacyl and 1-O-alkyl-2-sn-glycero-3-phosphocholine, comprising 49.1 and 77.3 mol% of the total compositional fatty acids, respectively. However, in 2-sn-glycero-3-phosphoethanolamines the major fatty acids were eicosapentaenoic acid (34.8 mol%) in 1,2-diacyl, doxosahexaenoic acid (65.1 mol%) in 1-O-alkyl-2-acyl-, and eicosapentaenoic acid and docosahexaenoic acid (42.9 and 41.2 mol%, respectively) in the 1-O-alkl'-enyl-class. The carbon chain-lengths of the major alkenyl group in 1-O-alk-1'-enyl-2-acyl-sn-glycero-3-phosphoethanolamine were 16 and 18.

Original languageEnglish
Pages (from-to)697-701
Number of pages5
JournalFood Research International
Volume31
Issue number10
DOIs
Publication statusPublished - 1998 Dec
Externally publishedYes

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Keywords

  • Docosahexaenoic acid
  • Eicosapentaenoic acid
  • Integument of squid
  • Phospholipids

ASJC Scopus subject areas

  • Food Science

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