Anti-allergic Effect of Tea-Leaf Saponin (TLS) from Tea Leaves (Camellia sinensis var. sinensis).
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چکیده
منابع مشابه
Isolation of An Aroma Precursor of Benzaldehyde from Tea Leaves (Camellia sinensis var. sinensis cv. Yabukita).
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.
متن کاملRegulation of Anthocyanin Biosynthesis in Purple Leaves of Zijuan Tea (Camellia sinensis var. kitamura)
Plant anthocyanin biosynthesis is well understood, but the regulatory mechanism in purple foliage tea remains unclear. Using isobaric tag for relative and absolute quantification (iTRAQ), 815 differential proteins were identified in the leaves of Zijuan tea, among which 20 were associated with the regulation of anthocyanin metabolism. We found that the abundances of anthocyanin synthesis-relate...
متن کاملAnti-Trypanosoma cruzi activity of green tea (Camellia sinensis) catechins.
The trypanocidal action of green tea catechins against two different developmental stages of Trypanosoma cruzi is reported for the first time. This activity was assayed with the nonproliferative bloodstream trypomastigote and with the intracellular replicative amastigote parasite forms. An ethyl acetate fraction from Camellia sinensis green tea leaves, which contains most of the polyphenolic co...
متن کاملChemopreventive effect of green tea (Camellia sinensis) among cigarette smokers.
Chemopreventive effects of green tea and coffee among cigarette smokers were examined in 52 clinically healthy male subjects between 20 and 52 years of age. Blood specimens were obtained from nonsmokers (group I), smokers (group II), smokers consuming green tea (group III), and smokers drinking coffee (group IV). The mean number of cigarette smoking years (> 10 cigarettes/day) in groups II-IV r...
متن کاملInhibition of xanthine oxidase by catechins from tea (Camellia sinensis).
Some epidemiological studies have associated tea drinking with several health benefits, while other such studies have been inconclusive. The liver enzyme, xanthine oxidase (XO) produces uric acid and reactive oxygen species (ROS) during the catabolism of purines. Excess of the former can lead to gout and of the latter to increased oxidative stress, mutagenesis and possibly cancer. Polyphenols a...
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ژورنال
عنوان ژورنال: Biological and Pharmaceutical Bulletin
سال: 1997
ISSN: 0918-6158,1347-5215
DOI: 10.1248/bpb.20.565