铬革屑酶法提取胶原蛋白交联反应制备高分子量产物 Ⅰ.明胶的提取(续)(英文)

作者：M.M.Taylor,L.F.Cabeza,W.N.Marmer,E.M.Brown

Author：

收稿日期：          年卷（期）页码：2005,15(03):3-

期刊名称：皮革科学与工程

Journal Name：Leather Science and Engineering

关键字：铬革屑,产物,化学特征,

Key words：

基金项目：

中文摘要

Results and Discussion The composition of chrome shavings, a by-product of leather production, will vary from batch to batch since there is variation in both the hides and the tanning processes employed. Analysis of shavings from several commercial sources yielded the following relatively narrow ranges of values for pH (3 to 4), moisture (50% to 54%), ash (8% to 14%), TKN (14% to 16%), fat (0.1% to 1.8%) and chromium (3% to 4% as chromic oxide). If the pH is outside of this range, it would have to be adjusted to assure the success of the process; other values used to characterize the shavings are not critical.

英文摘要

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