搜索结果: 1-8 共查到“食品生物化学 polyphenol oxidase”相关记录8条 . 查询时间(0.062 秒)
Characterisation of polyphenol oxidase and peroxidase and the role in browning of loquat fruit
Eriobotrya japonica PPO POD
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2015/3/30
Polyphenol oxidase (PPO) and peroxidase (POD) were extracted from a new loquat fruit cultivar (Ninghaibai) and characterised using reliable spectrophotometric methods. In both cases, the optimum pH fo...
Variation of Total Polyphenol and Polyphenol Oxidase Activity during Maturation of Mango Fruit (Mangifera indica L. ‘Irwin’) Cultured in a Plastic House
‘Irwin’ mango fruit maturation of mango variation of total polyphenol
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2009/7/8
Variation of total polyphenol (TPP) and polyphenol oxidase activity (PPO) was investigated in ‘Irwin’ mango fruit in various color stages of development: green, purple, purplish red and red. Fruits us...
Effects of Polyphenol Oxidase Activity in Wheat Flour on Protein-Bound 5-S-Cysteinyldopa Formation in Gluten
5-S-cysteinyl-3 4-dihydroxyphenylalanine (5-S-cysteinyldopa) polyphenol oxidase
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2009/7/8
The effects of polyphenol oxidase (PPO) activity in wheat flour on the formation of protein-bound 5-S-cysteinyl-3, 4-di-hydroxyphenylalanine (5-S-cysteinyldopa) in gluten have been studied. The wheat ...
Comparison of Soluble and Plastidal Polyphenol Oxidase in Mature Apples
polyphenol oxidase plastid subcellular localization
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2009/6/17
Polyphenol oxidase (PPO) is transported to plastid after translation. However, we often detect PPO activity in a soluble fraction of apple. Here we examined the location of PPO in retail apples. PPO a...
Purification and Characterization of Wheat（Triticum aestivum）Polyphenol Oxidase
wheat polyphenol oxidase purification
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2009/6/10
Polyphenol oxidase was purified to homogeneity from Japanese wheat (Triticum aestivum cv. Tohoku 198) bran, using 4-methylcatechol as a substrate. The enzyme was purified 1670-fold with a recovery of ...
Banana Polyphenol Oxidase: Occurrence and Change of Polyphenol Oxidase Activity in Some Banana Cultivars during Fruit Development
polyphenol oxidase tyrosynase development period
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2009/5/31
Occurrence of polyphenol oxidase (PPO, o-diphenol: oxygen oxidoreductase, EC.1.10.3.1) in the fruits of nine cultivars of banana (Musa spp.) commercially cultivated in China was investigated. All bana...
Purification and Characterization of Polyphenol Oxidase from Edible Yam（Dioscorea opposita Thunb.）
polyphenol oxidase edible yam dopamine oxidase
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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...
Rhyzopus oryzae Endopolygalacturonase and Borago officinalis Polyphenol Oxidase Thermostability, Isothermal and Thermal Gradient Methods
Borago officinalis polyphenol oxidase endopolygalacturonase heat inactivation
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2008/10/26
Heat stability of two major enzymes in vegetable processing, such as endopolygalacturonase from Rhyzopus oryzae and polyphenoloxidase from Borago officinalis, has been calculated. Isothermal and nonis...