Study of Umbelliferone Hydroxylation to Esculetin Catalyzed by Polyphenol Oxidase
نویسندگان
چکیده
منابع مشابه
Kinetic characterization of the oxidation of esculetin by polyphenol oxidase and peroxidase.
Esculetin has been described as an inhibitor of tyrosinase and polyphenol oxidase and, therefore, of melanogenesis. In this work, we demonstrate that esculetin is not an inhibitor but a substrate of mushroom polyphenol oxidase (PPO) and horseradish peroxidase (POD), enzymes which oxidize esculetin, generating its o-quinone. Since o-quinones are very unstable, the usual way of determining the en...
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High Quality Antibodies, FISH probes and Kits.Join Memeber Online Order TutorialA Simple Method for Assaying Total Protein, Polyphenol Oxidase and. Several assay procedures have been described for PPO and POD from lychee. PPO.Polyphenoloxidase Activity. The enzyme polyphenoloxidase or tyrosiuase, studying its. Zyme preparation and the general assay procedure.Polyphenol Oxidase Assay. The latter...
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ژورنال
عنوان ژورنال: Biological and Pharmaceutical Bulletin
سال: 2013
ISSN: 0918-6158,1347-5215
DOI: 10.1248/bpb.b13-00119