✦ LIBER ✦

Biochemical composition and nutritive value of krill (Euphausia superba Dana)

✍ Scribed by G. S. Sidhu; W. A. Montgomery; Gwenda L. Holloway; A. R. Johnson; D. M. Walker

Publisher: John Wiley and Sons
Year: 1970
Tongue: English
Weight: 437 KB
Volume: 21
Category: Article
ISSN: 0022-5142
DOI: 10.1002/jsfa.2740210606

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Frozen samples of Antarctic krill (Euphausia superba Dana) were found to contain 71·4% moisture, and on a dry matter basis 24·6% lipid, 49% protein (N × 6·25), 2·5% chitin, and 9·8% ash. Fatty acids from the crude lipid fraction were made up of 43·8% saturated, 32·8% mono‐unsaturated, and 23·4% polyunsaturated types.

Krill protein concentrate prepared as a light, free‐flowing powder by isopropanol extraction of krill contained 74·3% crude protein, 15·4% ash, 6% chitin and 0·3% lipid, and was rich in lysine, arginine, tryptophan, and threonine. The protein efficiency ratio of this concentrate was found to be the same as that of casein.

The significance of these results in relation to those obtained for other fish protein concentrates is discussed.

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