The present study appraised the hepatoprotective activity of aqueous extract of Camellia sinensis leaves and its possible mechanism of action against carbon-tetrachloride-induced liver damage. Liver damage was induced by   intraperitoneal administration of equal mixture of carbon tetrachloride   and olive oil (50 % v/v, 0.5 ml/kg ) in male Wistar rats (150-220g) once daily for...

The polyphenolic composition of Camellia irrawadiensis, which is a closely related species of Camellia sinensis (cultivated tea), was investigated. The most predominant polyphenol, a kind of ellagitannin, was isolated from leaves of C. irrawadiensis. Its structure was established as 1,2-di-O-galloyl-4,6-O-(S)-hexahydroxydiphenoyl-beta-D-glucose (2) on the basis of spectral and chemical evidence...

Background: Camellia sinensis and Zataria multiflora as the potent antioxidants and anti-inflammations are crucial in the management of wound therapy. Lipopolysaccharide (LPS) was used for the proliferative potential on fibroblast cells and induction of inflammatory mediators. Objective: We examined the effects of LPS and herbal extracts combination in order to identify their mechanisms of a...

tea is the second most commonly consumed beverage world wide. tea ( camellia sinensis ) is a naturally rich source of fluoride. the quantity of fluoride intake is important in optimizing its dental caries-preventive role. intense concentration of fluoride in tea, can lead to excessive fluoride intake which may cause health problems in turn. the measurement of fluoride intake usually requires in...

conclusions as green tea is an essential source of antioxidants such as flavonoids, suppression of reactive oxygen species (ros) generation may be in part considered as the neuroprotective mechanism on acr induced neurotoxicity. background acrylamide (acr) monomer is an effective neurotoxicant, which damages the central and peripheral nervous systems in humans and animals. green tea, an infusio...

The genus Camellia (C.) contains many species, including C. sinensis, C. assamica, and C. taliensis, C. gymnogyna and C. tachangensis. The polyphenols of C. sinensis and C. assamica are flavan-3-ols monomers and their dimers and trimmers. However, the biosynthesis of procyanidins in Camellia genus remains unclear. In the present study, a comparative chemical analysis of flavan-3-ols, flavan-3-o...

The cyanoglycoside, prunasin, was isolated for the first time as an aroma precursor of benzaldehyde from fresh tea leaves (Camellia sinensis var. sinensis cv. Yabukita). Prunasin was readily hydrolyzed by a crude enzyme prepared from the fresh tea leaves to liberate benzaldehyde. The isomerization of prunasin under neutral conditions was also recognized.

Se desarrolló un método a microescala para la determinación de acidez titulable té (Camellia sinensis) y se comparó con el recomendado. Los resultados obtenidos muestran que desarrollado es satisfactorio: los valores son muy similares del referencia mostraron una correlación lineal valor R2 = 0.8901. El puede emplear como enseñanza en laboratorios química caracterización fisicoquímica bebidas e...