影像科学与光化学 ›› 1993, Vol. 11 ›› Issue (2): 45-48.DOI: 10.7517/j.issn.1674-0475.1993.02.45

• 研究论文 • 上一篇    下一篇

明胶大分子的照相性质研究 Ⅱ.明胶中蛋氨酸及其氧化物对明胶还原性影响的研究

李迅, 彭必先   

  1. 中国科学院感光化学研究所, 北京 100101
  • 收稿日期:1992-04-30 修回日期:1992-12-10 出版日期:1993-05-20 发布日期:1993-05-20
  • 通讯作者: 彭必先

STUDY OF PHOTOGRAPHIC PROPERTY OF GELATIN MACROMOLECULE Ⅱ. STUDY ON THE RELATIONSHIP BETWEEN MET, METSOX AND METSON CONTENTS IN GELATINS AND THEIR REDUCING CAPACITIES OF GELATINS

LI XUN PENG, BI-XIAN   

  1. Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, P.R. China
  • Received:1992-04-30 Revised:1992-12-10 Online:1993-05-20 Published:1993-05-20

摘要: 通过对明胶中Met及其氧化物含量及明胶还原性能进行的测定,考察了Met及其氧化物(砜及亚砜)对明胶还原性的影响.结果表明:在还原性与Met含量之间存在着正相关性,并首次证明在还原性与Metson之间存在着反相关性.

关键词: 明胶, 蛋氨酸(Met), 蛋氨酸亚砜(Metsox), 蛋氨酸砜(Metson), 还原能力

Abstract: The Met, Metsox and Metson contents in various gelatins were determined and corrected to the reducing capacity. The results showed that a gross linear relationship exists between Met contents and the reducing capacities of gelatins. It was first shown that an anti-parallel relationship exists between Metson contents and reducing capacities. In addition, a gross linear relationship between the sum of Met and Metsox contents and the reducing capacity was found as well. This discovery is of great significance not only for deepening our understanding the native of photographic property of gelatins, but also for improving quality and sustaining the homogeneity and constancy of gelatin products.

Key words: gelatin, methionine, methionine sulfoxide, sulfone, reducing capacity