摘要
试验选择了6种酶制剂应用于制革浸水工序,以浸水废液中的蛋白质含量、羟脯氨酸含量、浸水生皮的柔软度、黄心程度以及溜毛出现时间为指标,比较了酶浸水与无酶浸水之间的差异;考察了酶制剂种类与浸水效果之间的关系。试验结果表明:6种酶制剂都能够显著提高生皮间质蛋白的溶解速度,缩短浸水时间;不同酶制剂的浸水应用效果存在着较大的差异,碱性酶1对生皮蛋白质的水解能力最强,碱性酶2对生皮胶原蛋白的水解能力最强;综合考虑各项性能指标,不同浸水方案的优劣顺序为:碱性酶1>中性酶2>碱性酶2>碱性(无酶)>中性酶1>中性(无酶)>1398蛋白酶≈3942蛋白酶。
Six selected enzymes were used in leather soaking in this paper. By testing protein content, hydroxyproline content in the waste liquor of soaking, the extent of softness and the extent of yellow streak, the difference between enzymatic soaking and enzymefree soaking were compared. The relation of different enzymes and its applications in leather were researched as well. From the data of experimentation, some conclusions could be gotten as follows. The speed of dissolution of protein in skin could be increased markedly thus the total time in soaking could be shorten, if these six kinds of enzymes were umd in leather soaking. There were great differences within enzymes. Jianxing 1 enzyme was the strongest enzyme in hydrolyzing the protein in skin; Jianxing 2 enzyme was the strongest enzyme in hydrolyzing the collagen however. If all the indexes were considered, the sequences of projects from excellent to inferior could be ranked as： Jianxing 1 enzyme, Zhongxing 2 enzyme, Jianxing 2 enzyme, alkali （enzyme free）, Zhongxing 1 enzyme, neutrality （enzyme free）, 1398- protease and 3942- protease.
出处
《中国皮革》
CAS
北大核心
2006年第3期19-24,共6页
China Leather
基金
教育部新世纪优秀人才支持计划项目(NCET-04-0973)
国家教育部高等学校博士学科点专项科研基金(20040708011)资助课题
关键词
酶
制革
生皮浸水
应用
enzyme
leather making
soaking
application
