水産物の糖蛋白に関する研究-I : ナマコおよびフジコより糖蛋白の分離抽出について

概要

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The extraction method of mucoproteins from the muscle tissues of sea cucumbers, Sti-chopus japonicas and Cucumaria japonica, was examined, and the extraction with water after homogenizing the tissues in a Waring blendor was found to be more effective than that with salt solution (Table 1). Mucoproteins extracted by the two methods did not differ from each other in composition (Table 2). Analyses for nitrogen, sugar components and sulfate-S suggested that the muco-proteins from the both species have itin sulfate in common as the prosthetic group, which is composed of each one mole of hexosamine, hexuronic acid and sulfate. In addition, a neutral polysaccharide which is a polymer of hexosamine and neutral sugar component is also assumed to be present as a moiety of the mucoproteins from S. japonicas, and an acid polysaccharide containing sulfate in C. japonica.