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Purification and Characterization of Polyphenol Oxidase from Edible Yam（Dioscorea opposita Thunb.）
polyphenol oxidase edible yam dopamine oxidase
2009/5/31
Soluble polyphenol oxidase of edible yam (Dioscorea opposita Thunb.) was purified approximately 203-fold with a recovery rate of 15% by ammonium sulfate fractionation, ion exchange chromatography, hyd...
Difference Spectrophotometric Measurement of Catecholamine Oxidative Activity of Edible Yam (Dioscorea) Polyphenol Oxidase
edible yam (Dioscorea) enzymatic browning dopamine
2010/11/22
Polyphenol oxidase was partially purified from aerial tubers of edible yam (Dioscorea opposita THUNB.). The enzyme strongly oxidized catecholamines such as dopamine and DL-noradrenaline. The optimum p...