background and objective: although there are reports in the literature on the antimicrobial effects of green tea, the effect of black tea, the most common beverage in iran, on growth of bacteria, such as streptococcus pyogenes, has not been studied extensively. this study was undertaken to determine the inhibitory effect of black tea on the growth of streptococcus pyogenes in vitro and compare ...

objective: diabetes mellitus (dm) is a chronic metabolic disease which affects many organ systems in the body and is associated with a progressive weight loss. many diabetic patients used to consume herbal remedies to relieve their symptoms. black tea and its fermented remedy which is made by cultivating the kombucha mushroom in a mixture of warm tea and sugar are widely used by diabetic patien...

Depending on manufacturing techniques, te as can be divided into two main types: black tea, which has undergone an enzymic oxidation called 'fermentation' during processing, and green tea, which has not. Black tea represents about 80% of world production. Annual tea consumption varies from country ta country, ranging from a high level of about 3 kg per capu! ta negligible values in many countri...

background: tea is the most commonly consumed beverage by iranian adults after water, and while previous studies have examined the negative effects of coffee-based caffeine on bone mineral density (bmd), the relationship between the consumption of tea and bmd has not been clearly explored. the aim of this study was to investigate the relationship between habitual tea drinking and bmd in the adu...

background: exercise and consumption of green tea affect the aging process. however, the effect of exercise training combined with green tea extract on leukocyte telomere length, quality of life (qol) and body composition in aging has so far been unclear and inconsistent. objective: the aim of the present study was to determine the effectiveness of aerobic training intervention and green tea ex...

introduction Oxidation processes are among the chief reasons behind the deterioration of product life and quality during storage and application. It should be emphasized that oxidation is not only responsible for quality deterioration of products but also affect human organism, triggering a number of illnesses and increasing the rate of aging. In order to eliminate or reduce the oxidation rates...

Regular green tea intake has been associated with an inverse risk of breast cancer. There are compelling experimental evidence that green tea, particularly, epigallocatechin gallate, the most potent green tea catechin, possesses a range of anti-cancer properties. We conducted a pre-surgical study of green tea capsules vs. no-green tea in women with primary breast cancer to determine the effects...

Background and Objective: Controversial results of the association between tea (black tea, green tea, mate, and oolong tea) consumption and risk of bladder cancer were reported among epidemiological studies. Thus, we performed a meta-analysis of observational studies to investigate the association. Methods: We searched the PubMed and Embase for studies of tea consumption and bladder cancer that...

Experimental studies have shown that tea and tea polyphenols have anti-carcinogenic properties against breast cancer. A number of epidemiologic studies, both case-control and cohort in design, have examined the possible association between tea intake and breast cancer development in humans. This meta-analysis included 13 papers which examined populations in eight countries and provided data on ...

STREET R., SZÁKOVÁ J., DRÁBEK O., MLÁDKOVÁ L. (2006): The status of micronutrients (Cu, Fe, Mn, Zn) in tea and tea infusions in selected samples imported to the Czech Republic. Czech J. Food Sci., 24: 62–71. A total of 30 tea samples of different origins, thirteen green tea samples, thirteen black tea samples, two semi-fermented tea samples and one white tea, imported to the Czech Republic, wer...