Lipase-Assisted Concentration of n-3 Polyunsaturated Fatty Acids from Viscera of Farmed Atlantic Salmon (Salmo salar L.)
In fish processing, viscera are generally considered waste products and often discarded. Our research objective was to use Atlantic salmon (Salmo salar L.) viscera as a source of fish oil and to increase its concentration of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) by lipase‐assist...
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Published in | Journal of food science Vol. 67; no. 1; pp. 130 - 136 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Oxford, UK
Blackwell Publishing Ltd
01.01.2002
Institute of Food Technologists Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | In fish processing, viscera are generally considered waste products and often discarded. Our research objective was to use Atlantic salmon (Salmo salar L.) viscera as a source of fish oil and to increase its concentration of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) by lipase‐assisted hydrolysis. Lipids from fillets and viscera had similar fatty acid compositions. After the enzymatic hydrolysis, acylglycerols were isolated from free fatty acids, therefore increasing the concentrations of EPA and DHA in the acylglycerols. Among the 6 commercial lipases investigated, lipases from Pseudomonas cepacia and Candida rugosa were the most effective following incubation of viscera oil at 35 °C for 20 h. Salmon viscera were a good source for fish oil, and the concentration of DHA and EPA was doubled by using microbial lipases. |
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Bibliography: | ark:/67375/WNG-85GFCDHD-6 ArticleID:JFDS130 istex:F250E9958844FDC3A352280899BC5A5ACA4D206D The authors thank John E. Halver and Faye M. Dong for their advice and suggestions. Special thanks go to Amano Pharmaceuticals Inc. Ltd. for donating the microbial lipases and Seafreeze Inc. for donating Atlantic salmon. James Roe and Martin Sailek provided assistance for the fatty acid analyses. We also appreciate the suggestions and comments by the JFS Associate Scientific Editor and the anonymous reviewers. The Egtvedt Food Research Fellowship funded this research through the School of Aquatic and Fishery Sciences, Univ of Washington. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0022-1147 1750-3841 |
DOI: | 10.1111/j.1365-2621.2002.tb11372.x |