Preparation of oils, enhanced in highly unsaturated fatty acid (HUFA) content, by low temperature crystallization separation, for rotifer (Brachionus plicatilis) enrichment

George Wm Kissil, William M. Koven

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The use of enrichment emulsions to increase the (n-3) HUFA content of rotifers before feeding to marine culture organisms has been shown to increase growth and survival. These emulsions require (n-3) HUFA-rich oils which are not always available. A technique for the low temperature separation of unsaturated from saturated fatty acids is described, which can be used to enrich oils otherwise poor in (n-3) HUFA. Capelin fish oil that underwent low temperature crystallization separation at -70°C for 8 h produced an enriched fraction containing 50% less saturated fatty acids and 50% more polyunsaturates (2-6 double bonds). Emulsions containing this enriched fraction were fed to rotifers and resulted in a three-fold increase in the polyunsaturates of the rotifers.

Original languageEnglish
Pages (from-to)69-74
Number of pages6
JournalAquaculture
Volume88
Issue number1
DOIs
StatePublished - 1 Jul 1990
Externally publishedYes

ASJC Scopus subject areas

  • Aquatic Science

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