PREPARATION AND COMPLEXING STATE STUDY OF COPPER (Ⅱ) WITH GELATIN AND ITS ENZYME HYDROLYSIS PRODUCTS

doi:10.7517/j.issn.1674-0475.1999.02.145

Abstract

Abstract: The chelate complexes of copper (Ⅱ) with gelatin and its enzyme hydrolysis products have been prepared. The proportion of chelates is determined by spectrophotometry. The result shows that 9 grams of copper (Ⅱ) associates with 100 grams of gelatin to yield a chelate; that 100 grams of different enzyme hydrolysis gelatin chelate complexes 10.411.0 grams of copper (Ⅱ), respectively. IR and ESR spectra of three copper (Ⅱ) gelatin ( enzyme hydrolysis gelatin ) chelate in solid state at room temperature have been examined. The complexing state of these copper (Ⅱ) chelate complexes are discussed. The peptide bond in these chelate complexes plays an important role.

Key words: gelatin, copper ion, complexing state, peptide link

TANG Shi-hua, ZHENG Xi-rui, ZHENG Zhong. PREPARATION AND COMPLEXING STATE STUDY OF COPPER (Ⅱ) WITH GELATIN AND ITS ENZYME HYDROLYSIS PRODUCTS[J]. Imaging Science and Photochemistry, 1999, 17(2): 145-149.

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