A crustacean-derived protein, as measured by sodium dodecyl sulfate (SDS) - polyacrylamide gel electrophoresis, displays a non-reduced band of a molecular weight of about 200,000, displays reduced-form bands at about 86,000 and 90,000 molecular weights, and has N-terminal amino acids as indicated by SEQ ID No. 1 or SEQ ID No. 2.This protein is contained in large amounts in the crustacean shells that are largely discarded except for use for meal, chitin, and chitosan raw material. Thus large volume preparation, as well as inexpensive production, is possible. Moreover, application by addition to foods is easy since this is a food-derived protein. Since the protein of the present invention has ice nucleation activity and recrystallization inhibition activity for ice crystals, wide use is possible with the object of quality maintenance and the like of frozen food and the like.
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机译：通过十二烷基硫酸钠（SDS）-聚丙烯酰胺凝胶电泳测得的甲壳类衍生蛋白，其非还原带的分子量约为200,000，在86,000和90,000分子量处呈还原形式，并且具有N -末端氨基酸，如SEQ ID No.1或SEQ ID No.2所示。该蛋白质大量包含在甲壳类动物的贝壳中，除了用作粗粉，甲壳素和壳聚糖原料外，大部分都被丢弃了。因此，大批量的准备以及廉价的生产是可能的。而且，由于这是食物来源的蛋白质，因此容易添加到食物中来施用。由于本发明的蛋白质具有对冰晶的冰核活性和抑制再结晶的活性，因此以冷冻食品等的品质维持等为目的，可以广泛使用。
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