ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
About 90% of the hydrogen sulfide (H2S) produced by heated chicken muscle comes from muscle protein. To identify specific H2S precursors, the identity, quantity, and H2Sproducing capability of sulfur compounds in chicken muscle were investigated. The only sulfur compounds found in muscle nonprotein were methionine, taurine, and glutathione. Of these, only glutathione produced H2S. Therefore the principal H2S precursor in chicken muscle nonprotein is sulfur, occurring as eystine and/or cysteine in the tripeptide glutathione. Since the only sulfur compounds reported in chicken muscle protein are methionine, cystine, and/or cysteine, and since methionine does not produce H2S, the sulfur in the H2S produced by muscle protein must also come from cystine and/or cysteine. Glutathione gives off H2S about 180 times as fast as does chicken muscle protein, but, because there is approximately 1 to 2 thousand times as much protein as glutathione in muscle, protein is the principal H2S precursor. Since cystine plus cysteine, sulfur in protein and in glutathione is the only H2S precursor, the rate of H2S evolution from heated chicken muscle can be approximately predicted from its cystine content.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.1964.tb01750.x
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