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Composition of fatty acids and lipid classes in bulk products generated during enzymic hydrolysis of cod (Gadus morhua) by-products

Paper ID Volume ID Publish Year Pages File Format Full-Text
36453 45133 2005 12 PDF Available
Title
Composition of fatty acids and lipid classes in bulk products generated during enzymic hydrolysis of cod (Gadus morhua) by-products
Abstract

During enzymatic hydrolysis of cod (Gadus morhua) by-products four lipid containing fractions were generated: oil, emulsion, fish protein hydrolysates and sludge. The raw material consisted of combinations of viscera, backbone and digestive tract and was hydrolysed with, respectively, Flavourzyme, Neutrase or without addition of enzyme. The effect of water addition was also studied. The fatty acids and lipid classes were distributed unequally between the fractions and the distribution were influenced by the hydrolysis conditions. Highest yield of oil was obtained with no water added. The triacylglycerols were mainly found in the oil fraction, while the phospholipids were more difficult to extract from the mixtures. The sludge contained up to 50% lipids with a phospholipid content up to 60%. This might be a bulk product for further processing and purification of phospholipids. The highest amounts of eicosapentaenoic and docosahexaenoic acid were found in lipids in the protein containing fractions.

Keywords
By-products; Enzymatic hydrolysis; Lipid classes; Fatty acid composition; Cod; Gadus morhua
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Composition of fatty acids and lipid classes in bulk products generated during enzymic hydrolysis of cod (Gadus morhua) by-products
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 40, Issue 8, July 2005, Pages 2659–2670
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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