铬革渣资源化处理研究Ⅶ.蛋白质的水解及其测定  

Reclamation Treatment of the Scraps of Chrome Ⅶ. The hydrolysis of Protein and the Determination.

作　　者：蒋挺大[1] 甘友新 张春萍[1] 

机构地区：[1]中国科学院生态环境研究中心,北京100085

出　　处：《环境科学》1993年第5期9-12,共4页Environmental Science

摘　　要：铬革渣在碱性介质中脱鞣提取蛋白质的过程中,当反应体系的pH=13,反应压力为1.4kg/cm^2,11h后出现蛋白质水解产物氨基酸,随反应时间的延长,水解度随之增大。这种水解,随体系的pH值升高而加快。实验表明,用改进的甲醛滴定法可测定铬革渣在碱性介质中蛋白质的水解度。In the process of extracting protein by the dechroming of chrome leather scrap in basic medium,contributed to the hydrolysis of protein,amino acids appear in 11 h when the pH value is 13,and the reaction pressure is 1. 4kg/cm2. The hydrolysis degree of protein increases as the reaction is proceeding and it also increases when the pH value is raised. The experiments demonstrate that,in a basic medi- um, the hydrolysis degree of chrome leather scrap can be determined with a modified formaldehyde titration method.

关 键 词：铬革渣 蛋白质 氨基酸 资源化 

分 类 号：X794.03[环境科学与工程—环境工程]