废铬革屑中提取胶原蛋白的戊二醛改性研究  

Study on the glutaraldehyde modification of collagen obtained from chrome shavings

作　　者：曹健[1] 吕燕红 常共宇 汤克勇[2] 

机构地区：[1]河南工业大学生物工程系,郑州450052 [2]郑州大学材料工程学院,郑州450052

出　　处：《中国皮革》2005年第5期21-26,共6页China Leather

基　　金：国家自然科学基金资助项目 (项目编号 :2 0 1 740 37;50 4 730 2 1 )

摘　　要：对废铬革屑先进行脱铬预处理 ,再用碱性蛋白酶水解 ,得到胶原蛋白水解产物 ,然后用戊二醛进行改性。研究了 pH值、戊二醛用量、反应时间、温度等对改性的影响 ,确定了用戊二醛改性的最佳条件 ,比较了改性前后胶原蛋白水解产物在乳化性、乳化稳定性、吸水性、吸油性和保水性方面的差别。Chrome shavings were processed with de-chroming agents and then hydrolyzed with alkaline protease. The obtained collagen product was modified with glutaraldehyde. Effect of such factors as pH value, dosage of glutaraldehyde used, reacting time and temperature in the process of modification were studied, and the best conditions of modification were determined. The changes of such properties as emulsification, and emulsion stability, water absorption, oil absorption, water maintenance of the collagen products before and after modification were also compared.

关 键 词：废铬革屑 胶原蛋白 戊二醛 改性 制革工业 

分 类 号：X794[环境科学与工程—环境工程]