Poulopoulou Vassiliki G, Katakis Dimitris, Vrachnou Ersi
a Institute of Physical Chemistry, N.C.S.R. "Demokritos," , Attiki , Greece.
b Chemistry Department , Stanford University , Stanford , California , USA.
J Air Waste Manag Assoc. 1998 Sep;48(9):846-852. doi: 10.1080/10473289.1998.10463735.
The separation of Cr(III) from collagen in chromium-tanned leather (wet-blue) is achieved by a combination of the protein (collagen) stabilization (protective cross-linking) and a subsequent labilization of the Cr(III) species bound to the protein. During the separation collagen retains the tertiary triple helical and higher (fibril) structures. The model proposed for the protective cross-linking involves inter- rather than intramolecular bridging, that is, a supramolecular bridging. The process of chromium removal takes place in a restricted aqueous environment, and it can be characterized as semihomogeneous or semiheterogeneous.
通过蛋白质（胶原蛋白）稳定化（保护性交联）以及随后使与蛋白质结合的Cr(III)物种不稳定化相结合的方法，实现了从铬鞣革（蓝湿革）中的胶原蛋白中分离出Cr(III)。在分离过程中，胶原蛋白保留了三级三螺旋和更高层次（原纤维）的结构。所提出的保护性交联模型涉及分子间而非分子内的桥连，即超分子桥连。铬去除过程在受限的水环境中进行，其可被表征为半均相或半非均相。
