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Effects of the addition of sulphur compounds to the diet on utilisation of protein in young growing rats
Author(s) -
Miller D. S.,
Samuel Pamela D.
Publication year - 1970
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740211204
Subject(s) - methionine , net protein utilization , casein , cysteine , sulfur , chemistry , homocysteine , biochemistry , food science , amino acid , biology , organic chemistry , enzyme , protein efficiency ratio , body weight , weight gain , endocrinology
A number of sulphur‐containing compounds were added to a 10% casein diet in order to indicate their ability to replace a supplement of methionine. Net protein utilisation ( NPU ) was determined. Cysteine, homocysteine and methionine hydroxy analogue produced as great an increase in NPU as did methionine. Methionine sulphoxide increased the NPU to a lesser extent. Methionine sulphoximine, methyl methionine sulphonium hydrogen sulphate and methionine sulphone caused reductions in NPU. Other organic and all inorganic sulphur compounds showed no methionine sparing action.