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Enzymatic browning in foods and its prevention
(Nova Science Publishers, 2009)
Phenolic compounds are widely distributed in the plant kingdom and are considered to be secondary metabolites. Structurally they contain an aromatic ring bearing one or more hydroxyl groups, together with a number of other ...
Inhibition kinetic of Ocimum basilicum L. polyphenol oxidase
(Walter De Gruyter Gmbh, 2007)
The paper reports the inhibition model of the purified polyphenol oxidase (PPO) activity from basil (Ocimum basilicum L.) with L-cysteine, ethylenediaminetetraacetic acid (EDTA), ascorbic acid, gallic acid, D,L-dithiothreitol, ...
Some kinetic properties of polyphenol oxidase from Thymbra spicata L. var. spicata
(Elsevier Sci Ltd, 2006)
Polyphenol oxidase (PPO)of Thymbra (Thymbra spicata L. var. spicata) was isolatedby (NH4)(2)SO4 precipitation and dialysis. A diphenolase from Thymbra plant, active against 4-methylcatechol, catechol and pyrogallol was ...
Inhibition kinetic and mechanism of polyphenol oxidase from various sources by diethyldithiocarbamic acid
(Wiley-Blackwell, 2008)
Inhibition kinetics and mechanism of polyphenol oxidases (PPO) partially purified from various sources such as Thymbra spicata L. var. spicata and Ocimum basilicum L., and of mushroom PPO bought from Sigma by diethyldithiocarbamic ...
Inhibition kinetics of polyphenol oxidase by glutamic acid
(Springer, 2007)
The inhibition of polyphenol oxidase (PPO) by glutamic acid was investigated. Application of different concentrations of glutamic acid to mushroom solution and Ocimum basilicum L. extract showed that glutamic acid appeared ...
Determination of kinetic properties of polyphenol oxidase from Thymus (Thymus longicaulis subsp chaubardii var. chaubardii)
(Elsevier Science Sa, 2004)
A partial characterization of polyphenol oxidase (PPO) activity of Thymus longicaulis subsp. chaubardii var. chaubardii is described. Polyphenol oxidase of Thymus was isolated by (NH4)(2)SO4 precipitation and dialysis. The ...
Substrate specificity, heat inactivation and inhibition of polyphenol oxidase from different aubergine cultivars
(Blackwell Publishing Ltd, 2002)
The effects of substrate specificity, heat inactivation, temperature, pH and inhibitors on polyphenol oxidase (PPO) activity obtained from three different aubergine cultivars were investigated to identify the most appropriate ...
