Kinetics Properties of Polyphenol Oxidase in Hawthorn (<i>Crataegus spp</i>)
نویسندگان
چکیده
منابع مشابه
Effect of Anti Browning Agents on Partial Purified Polyphenol Oxidase of Hawthorn (Crataegus Spp
Objective: Polyphenol oxidase or PPO (EC 1.14.18.1) is considered the enzyme responsible for quality deterioration and browning in different fruits during postharvest period. The objective of this study was to evaluate the antibrowning (inhibition of polyphenol oxidase activity) effect of Cysteine, Ascorbic acid, citric acid, kojic acid and glycine at two different pH (6 and 7) in hawthorn. Me...
متن کاملEffect of Anti Browning Agents on Partial Purified Polyphenol Oxidase of Hawthorn (Crataegus Spp
Objective: Polyphenol oxidase or PPO (EC 1.14.18.1) is considered the enzyme responsible for quality deterioration and browning in different fruits during postharvest period. The objective of this study was to evaluate the antibrowning (inhibition of polyphenol oxidase activity) effect of Cysteine, Ascorbic acid, citric acid, kojic acid and glycine at two different pH (6 and 7) in hawthorn. Me...
متن کاملDirect Electrochemistry of Polyphenol Oxidase
The electrochemistry of banana tissues on a carbon paste electrode modified with multi-walled carbon nanotubes (MWCNTs) is presented. Cyclic voltammetry is applied to investigate the direct electrochemistry of banana tissues i.e. a source of polyphenol oxidase (PPO). A redox couple with an anodic and counterpart cathodic peak is obtained. The influence of various parameters such as pH,...
متن کاملeffect of anti browning agents on partial purified polyphenol oxidase of hawthorn (crataegus spp
objective: polyphenol oxidase or ppo (ec 1.14.18.1) is considered the enzyme responsible for quality deterioration and browning in different fruits during postharvest period. the objective of this study was to evaluate the antibrowning (inhibition of polyphenol oxidase activity) effect of cysteine, ascorbic acid, citric acid, kojic acid and glycine at two different ph (6 and 7) in hawthorn. me...
متن کاملInhibition Kinetics of Agaricus bisporus (J.E. Lange) Imbach Polyphenol Oxidase
This paper reports the inhibition kinetics of mushroom (Agaricus bisporus; J.E. Lange) polyphenol oxidase (PPO) with benzoic acid, sodium azide and sodium fluoride as inhibitors, and pyrocatechol as substrate. Mushroom PPO was significantly inhibited by all of the tested inhibitors. Diphenolase activity of mushroom PPO exhibited the competitive-type inhibition with benzoic acid as an inhibitor;...
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ژورنال
عنوان ژورنال: International Letters of Natural Sciences
سال: 2014
ISSN: 2300-9675
DOI: 10.18052/www.scipress.com/ilns.25.29