Impurity in a Common Growth Medium Component: Presence of an Isoflavonoid in Samples of l-Asparagine

J Bacteriol. 1970 October; 104(1): 599–600.

PMCID: PMC248250

A. T. Hudson and Ronald Bentley

¹Department of Biochemistry, Faculty of Arts and Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15213

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Abstract

An impurity, present in some samples of l-asparagine, gave genistein on acid hydrolysis. The contaminant (probably the glucoside of genistein) was metabolized by Mycobacterium phlei to genistein and prunetin.

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Selected References

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Ganguly, AK; Sarre, OZ. Genistein and daidzein, metabolites of Micromonospora halophytica. Chem Ind. 1970 Feb 7;6:201. [PubMed]
Weinstein, MJ; Luedemann, GM; Oden, EM; Wagman, GH. Halomicin, a new Micromonospora-produced antibiotic. Antimicrob Agents Chemother (Bethesda). 1967;7:435–441. [PubMed]