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Mechanisms and Structural Specificity of Hydrogen Peroxide Formation during Oxidation of Catechins
superoxide anion hydrogen peroxide catechin
2009/6/17
Hydrogen peroxide (H2O2) formed in aqueous solutions of tea catechins such as epicatechin (EC), epicatechin gallate (ECg), epigallocatechin (EGC), and epigallocatechin gallate (EGCg) was measured by a...
Oxidation of Tea Catechins: Chemical Structures and Reaction Mechanism
black tea tea polyphenol catechin
2009/6/17
Black tea accounts for almost 80% of the world’s tea production and is the most important source of polyphenol in the world. However, little has been known about the chemistry of black tea polyphenols...
Effect of Cyclodextrins on the Thermal Epimerization of Tea Catechins
tea catechins thermal epimerization cyclodextrin
2009/5/8
The epimerization reaction of tea catechins was investigated at pH 5.5 and 120 °C in the absence/presence of cyclodextrins (CDs). In the absence of CDs, a considerable quantity (∼20%) of product...
Effect of Cyclodextrins on the Thermal Epimerization of Tea Catechins
tea catechins thermal epimerization cyclodextrin
2010/2/3
The epimerization reaction of tea catechins was investigated at pH 5.5 and 120 °C in the absence/presence of cyclodextrins (CDs). In the absence of CDs, a considerable quantity (∼20%) of product...