Abstract

Spun protein fibers which may be acceptable as meat analogues have been fabricated from antarctic krill (Euphausia superba) muscle proteins and Na-alginate. Through the use of column chromatography, the interaction between actomyosin, extracted from antarctic krill muscle, and polysaccharides were investigated. Of the polysaccharides tested, only Na-alginate reacted with actomyosin. Elution patterns of the reaction mixtures of actomyosin and Na-alginate were different from that of the individual component. No apparent effects of Naalginate on the elution patterns of globular proteins such as bovine serum albumin and apo-ferritin were observed. Elution pattern of antarctic krill muscle proteins mixed with Na-alginate was different from that of the antarctic krill muscle proteins only. It appeared that complex formation between antarctic krill muscle proteins and Na-alginate contributed to the fiber formation when the homogenous antarctic krill muscle proteins-Naalginate mixture was extruded into the coagulation solution containing Ca ion.

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