PARTIAL CHARACTERIZATION OF MUSCLE COLLAGENS FROM PRAWNS AND LOBSTER.

Type of article: Article

Summary

THE ABDOMINAL MUSCLE TISSUES OF GIANT RIVER PRAWN, FLESHY PRAWN AND SPINY LOBSTER CONTAINED 2.4-2.6% COLLAGEN OF THE TOTAL TISSUE PROTEIN. ALKALI-INSOLUBLE PROTEINS WERE PREPARED FROM THE MUSCLE TISSUES BY TREATMENT WITH 0.1 N SODA AT 277 K (4 DEG C) AND FOUND TO EXHIBIT THE AMINO ACID COMPOSITION TYPICAL OF COLLAGEN. THE MUSCLE COLLAGENS, CONSISTING OF ALPHA CHAIN-SIZED COMPONENTS, WERE THEN ISOLATED BY LIMITED PEPSIN DIGESTION AND CHARACTERIZED BY A HIGH CONTENT OF HYDROXYLYSINE AND ITS GLYCOSIDE AND A LOW CONTENT OF ALANINE. IN ADDITION, SUBCUTICULAR MEMBRANES COVERING THE MUSCLE TISSUES WERE FOUND TO BE COMPRISED MAINLY OF SUCH AN ALKALI-INSOLUBLE COLLAGEN.

Details

Original title: PARTIAL CHARACTERIZATION OF MUSCLE COLLAGENS FROM PRAWNS AND LOBSTER.
Record ID : 1986-2374
Languages: English
Publication date: 1986
Source: Source: J. Food Sci.
vol. 51; n. 2; 1986.03-04; 330-332; 339; 3 fig.; 2 tabl.; 11 ref.
Document available for consultation in the library of the IIR headquarters only.

Indexing

Themes: Food quality and safety. Microbiology;
Fish and fish product
Keywords: Muscle; Shrimp; Rock lobster; Chilling; Organoleptic property; Protein; Crustacea; Collagen