Extraction of Lipid and Cholesterol from Fish Muscle with Supercritical Fluids

Ingibjörg Harðardóttir*, J. E. Kinsella

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

74 Citations (Scopus)

Abstract

Supercritical fluid extraction (SFE) was explored as a method for removing lipids and cholesterol from fish muscle. Selected conditions of extraction pressure, time, temperature and sample size were evaluated for effective removal of lipid and cholesterol. Increasing carbon dioxide (CO2) pressure from 2000 to 5000 psig and the temperature from 40° to 50°C had little effect on the extent of lipid removal. Increasing the extraction time from 3 hr to 9 hr increased lipid removal. Ethanol as an entrainer significantly enhanced lipid extraction at all pressures used. Supercritical carbon dioxide (SCO2) and SCO2 plus ethanol removed 78% and 97% of the lipids and 97% and 99% bf the cholesterol, respectively, from trout muscle. The solubility of the muscle proteins decreased following extraction.

Original languageEnglish
Pages (from-to)1656-1658
Number of pages3
JournalJournal of Food Science
Volume53
Issue number6
DOIs
Publication statusPublished - Nov 1988

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