茧丝纤维是由20％～30％的丝胶蛋白质和70％～80％的丝素蛋白质组成,在茧衣中丝胶蛋白质含量更高达40％。其中丝素蛋白质不仅被制成丝绸,而且还被开发成化妆品和食品的原料。与此相对,线胶蛋白质却没有被实际应用,这不仅浪费了宝贵的天然蛋白质资源,而且还污染了环境。其原因主要是从缫丝、精炼废水中提取和制备丝胶多肽的工艺比较复杂,成本高。而直接用茧衣、茧壳、废丝中的任一种原料,如加水和蛋白水解酶提取丝胶多肽。其工艺简单、成本低、对环境无污染。下面将提取方法介绍 Cocoon fiber is composed of 20% to 30% of sericin protein and 70% to 80% of silk fibroin protein in the cocoon coat sericin protein content up to 40%. Silk fibroin which is not only made of silk, but also was developed into cosmetics and food raw materials. In contrast, gel proteins have not been used in practice, not only wasting precious natural protein resources, but also polluting the environment. The main reason is that the process of extracting and preparing sericin polypeptide from reeling and refining wastewater is complicated and costly. And directly with cocoon clothing, cocoon shell, waste silk in any one of raw materials, such as water and proteolytic enzymes extracted sericin polypeptide. The process is simple, low cost, pollution-free environment. The following will extract the method introduced