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In vitro utilization of L-cystine by keratinophilic fungi inhabiting a gelatin factory

โœ Scribed by H. K. Malviya; S. K. Hasija; R. C. Rajak

Book ID
104773109
Publisher
Springer Netherlands
Year
1992
Tongue
English
Weight
403 KB
Volume
118
Category
Article
ISSN
0301-486X

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โœฆ Synopsis

Twenty-six different species of keratinophilic fungi were examined to determine their ability to utilize free cystine. Of the fungi tested, the majority metabolized free L-cystine in a glucose-peptone culture medium. Cystine was used as source of sulfur, and carbon and nitrogen as well. Excess sulfur was excreted into the culture fluid, as thiosulfate and sulfate, following oxidation. The rate of cystine oxidation varied with the different fungal strains, but was maximal for Graphium penicilloideus (88.5%).

Low quantities of thiols were found in the medium. Cystine oxidation and inorganic thiosulfate excretion were found to correlate significantly (r = 0.94).

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โœ R. C. Rajak; Seemantini Parwekar; Hitesh Malviya; S. K. Hasija ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 356 KB

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