Year: 1967
Type: article
Abstract: For the puropose to know the influence of alkali on collagen fibers in liming using Ca(OH)2 or Ca(OH)2+Na2S, we carried out various experiments by combinating two typical conditions (mild or severe) at to the following factors, which had an influence on the liming condition; weight and freshness of skin and hide, temperture and period in liming and quantity and concentration of lime liquor.After the liming, some properties of collagen fibers, i.e., amounts of collagen solubility by lime solution, the contents of amide nitrogen, its digestibility by trypsin and amounts of Cr2O3 absorbed by hide substance were determined.As the results of the experiments, the following relations were recognized.In pure Ca(OH)2 liming, its concentration had no effect on the amounts of collagen solubility by lime solution, the contents of amide nitrogen and natures of collagen fibers, but in the case of adding Na2S to lime solution, the amounts of collagen solubility by lime solution were affected by the concentration of Na2S and Ca(OH)2.
Source: Nihon Chikusan Gakkaiho
Authors: Hiroshi OKAMURA, Akira KAWAMURA
Institution: Tokyo University of Agriculture and Technology
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4233286310