以狭鳕加工废料为来源提取酸溶胶原并加以表征.该胶原在230nm处有最大紫外吸收,红外吸收光谱指示存在螺旋结构.电泳图谱分离出多个亚基,鉴定为Ⅰ型胶原.该胶原有独特的氨基酸组成,甘氨酸达19.8%,羟脯氨酸占6.9%.酸水解制备的胶原多肽平均分子量区间为3.2～53kDa.胶原多肽具有不同的生物学功能:较高分子量的胶原多肽用于小鼠表现出止血、促凝血和促进外伤愈合的功能,而较低分子量的胶原多肽则对烫伤修复有显著的促进作用.
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