2. Academic Validation
  3. Inhibitory activity against urease of quercetin glycosides isolated from Allium cepa and Psidium guajava

Inhibitory activity against urease of quercetin glycosides isolated from Allium cepa and Psidium guajava

  • Biosci Biotechnol Biochem. 2010;74(4):878-80. doi: 10.1271/bbb.90895.
Samah Shabana 1,  Azusa Kawai,  Kenji Kai,  Kohki Akiyama,  Hideo Hayashi
Affiliations

Affiliation

  • 1 Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Japan.
PMID: 20378972 DOI: 10.1271/bbb.90895
Abstract

Methanolic extracts of edible Plants and seaweeds were tested for their inhibitory activity against Jack bean urease. Quercetin-4'-O-beta-D-glucopyranoside was isolated from Allium cepa as a urease inhibitor with an IC(50) value of 190 microM-. Quercetin and two quercetin glycosides, avicularin and guaijaverin, were isolated from Psidium guajava as urease inhibitors with respective IC(50) values of 80 microM-, 140 microM-, and 120 microM-.

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