Beyond brown | 水果好營養
由MLSullivan著作·2015·被引用92次—Polyphenoloxidases(PPOs)arecoppercontainingenzymesthatarenearlyubiquitousamongplants(Mayer,2006).Theyhavecatecholoxidase ...
Polyphenol oxidases (PPOs) are copper containing enzymes that are nearly ubiquitous among plants (Mayer, 2006[1]). They have catechol oxidase activity (oxidation of o-diphenols to their corresponding o-quinones, EC 1.10.3.1) and many also have the ability to hydroxylate monophenols to o-diphenols (tyrosinase, EC 1.14.18.1; Marshall and Yoruk, 2003[2]; Mayer, 2006[3]). Throughout this review, the term tyrosinase will refer to the enzyme activity that oxidizes monophenols to o-diphenols. In the literature, the designation “PPO” sometimes includes laccases (EC 10.3.2). These copper containing enzymes are capable of oxidizing a wide range of aromatic compounds (including some utilized by PPO as defined above) and in plants are thought to have roles in radical coupling of monolignols to form lignin and flavanoid polymerization in the cell wall [see Mayer and Staples (2002)[4] and the introduc...
Beyond brown | 水果好營養
Novel Roles for the Polyphenol Oxidase Enzyme in ... | 水果好營養
Polyphenol Oxidase | 水果好營養
Polyphenol oxidase | 水果好營養
Polyphenol Oxidase Enzymes Cause Browning of Fruit and ... | 水果好營養
Polyphenol Oxidase(s) | 水果好營養
Polyphenol Oxidase | 水果好營養
Polyphenol Oxidases in Crops | 水果好營養
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