The mineral content of the skin of rats suffering from beri-beri, with investigations on the formation of vitamin B1 by moulds

Abstract
Aspergillus niger formed vit. B1 (mostly in the conidia) on a vit. B-free medium and cured and prevented beri-beri in rats. Animals fed on this mold-covered food were excitable and required a large amt. of water. In beri-beri rats, the K content of the skin was increased while the Ca was irregular. Mg was raised wherever there was no corresponding Ca increase following a rise in K. The chloride and phosphate contents varied but the former had a tendency to rise while the latter became lower.

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