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Original Articles

A β-Rutinosidase from Penicillium rugulosum IFO 7242 That Is a Peculiar Flavonoid Glycosidase

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Pages 1317-1319 | Received 12 Jan 2000, Accepted 27 Mar 2000, Published online: 22 May 2014
 

Abstract

A β-rutinosidase, which was specific for releasing the disaccharide rutinose from the flavonoid glycoside rutin, was purified from Penicillium rugulosum IFO 7242. This enzyme had the molecular weight of 245,000, a very low optimum pH of 2.2, and the remarkable specificity that the glycosidase did not hydrolyze any other substrates like 4-nitrophenyl β-glucoside and cellobiose, but only rutin and isoquercitrin.

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