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Original Articles

On the Methionine Sulphoxide of GelatinFootnote

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Pages 68-69 | Received 19 Sep 1967, Published online: 23 Jul 2016
 

Abstract

Methionine remains unchanged during the preparation of gelatin provided that the treatments do not involve any added oxidant. It is oxidized partially or even completely to methionine sulphoxide when, with the idea of destroying certain impurities, the collagen or gelatin are subjected to purification treatments (hydrogen peroxide, sodium peroxide, hypochlorite).

Notes

Paper presented at a symposium on “Photographic Gelatin” organized by the Science Commiuee of the Royal Photographic Society on 19–22 September 1967 in Cambridge.

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