铬革屑中胶原蛋白降解物的提取与纯化  

Extraction and purification of collagen degradation products of chrome leather scraps

作　　者：王帅[1] 杨茂[1] 单志华[1] 

机构地区：[1]四川大学皮革化学与工程教育部重点实验室,四川成都610065

出　　处：《中国皮革》2017年第5期11-14,共4页China Leather

摘　　要：碱法从含铬革屑提取的胶原蛋白降解物中铬含量较高,限制了其循环利用价值。因此,有必要对废铬屑提取的胶原蛋白做进一步纯化。通过对胶原蛋白降解物进行脱钙、透析等处理,分析蛋白粉灰分以及铬、钙含量。结果表明:脱钙处理并不能使蛋白粉中的铬含量降低,透析使蛋白粉中的铬含量降低了76.7%,说明铬及其化合物主要存在于低分子质量胶原蛋白降解物中。Due from waste chrome the experiments of Ca was measured. tion products. The cates that Cr or its to the high contents of chromium, the recycling value of collagen degradation products extracted scraps by alkaline method is limited. Therefore it is necessary to be further purification. Through decalcification and dialysis treatment of collagen degradation products, the contents of ash, Cr and The results show that the decalcification is difficult to reduce the content of Cr in collagen degradadialysis method makes the Cr content of the collagen degradation products reduced 76. 7%. It indicompound mainly existed in the collagen degradation products with low molecular mass.

关 键 词：铬革屑 胶原蛋白降解物 纯化 透析 分子质量 

分 类 号：TS59[轻工技术与工程—皮革化学与工程]