Tissue printing to visualize polyphenol oxidase and peroxidase in vegetables, fruits, and mushrooms
β Scribed by Amanda R. Melberg; William H. Flurkey; Jennifer K. Inlow
- Publisher
- The American Society for Biochemistry and Molecular Biology
- Year
- 2009
- Tongue
- English
- Weight
- 120 KB
- Volume
- 37
- Category
- Article
- ISSN
- 1470-8175
No coin nor oath required. For personal study only.
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The e β ects of freezing and frozen storage on hermaphrodite and female papayas (cv Sunrise, solo group) polyphenol oxidase (EC 1.10.3.1 ; PPO) and peroxidase (EC 1.11.1.7 ; POD) were evaluated. The freezing process produces a signiΓcant increase in both enzymatic activities (22Γ11%, PPO and 13%, POD
## Abstract **BACKGROUND:** The enzyme polyphenol oxidase (PPO) reduces the extent of proteolysis and lipolysis within red clover fed to ruminants. PPO catalyses the conversion of phenols to quinones, which can react with nucleophilic cellular constituents (e.g. proteins) forming proteinβphenol com