L-Theanine content has tissues and cultivars specificity in tea plant (Camellia sinensis L.), the correlations of theanine metabolic related genes expression profiles with theanine contents were explored in this study. L-theanine contents in the bud and 1st leaf, 2nd leaf, 3rd leaf, old leaf, stem, and lateral root were determined by HPLC from three C. sinensis cultivars, namely 'Huangjinya', '...

Green tea (Camellia sinensis L.) is one of the most widely used plants in Indonesia. rich catechins which have many benefits including antioxidants, anticancer, can reduce stress, and cholesterol levels blood. This study aims to determine Tea extract with various extraction methods. Each sample was extracted by maceration, microwave infusion using aquadest solvent obtained Freeze Drying. Qualit...

Nowadays different foods and vegetables are contaminated with oxalates of sodium and calcium, present in pesticides and chemical fertilisers. Even many drugs contain sodium oxalate, which is a causative agent of urolithiasis and hepatic cell damage. Herbal plant supplements may reduce this drug induced toxicity. Renal and hepatoprotective effects of the aqueous extracts of green tea (Camellia s...

The effects of oral feeding of aqueous extract of green tea leaf on alkaline phosphatase (ALP), acid phosphatase (ACP), alanine transaminase (ALT), aspartate transaminase (AST), sugar and total proteins were studied in the liver of cadmium treated rats. In cadmium control group sugar and protein levels were decreased and ALP level was significantly (p<0.001) decreased, whereas ACP, ALT and AST ...

The beverage tea, from the top leaves of the plant Camellia sinensis is one of the most widely used beverages in the world, second only to water. Black and green tea have mostly similar actions. The active components are polyphenols, mainly epigallocatechin gallate in green tea, and the tea leaf polyphenol oxidase mediated oxidation to oolong and black tea, yielding other polyphenols, theaflavi...

Polyphenols including catechins from green tea (Camellia sinensis) have been reported to have anti-infective activities against a broad spectrum of viruses and other pathogens. During the last two decades, antiviral activities of catechins with different modes of action have been demonstrated on diverse families of viruses, such as human immunodeficiency virus, Herpes simplex virus, influenza v...

ABSTRACT: Tea is one of the most popular beverages in the world and contains several important essential micro nutrients, that are beneficial to human health. The contamination of tea leaves by heavy metals may pose serious problems to human health, because they are not biodegradable and remain in the environment and might enter the food chain. In this study, the concentration of heavy metals; ...