AMINO ACID COMPOSITION AS PRECURSOR FLAVORS CHANGES IN TEA LEAVES (CAMELLIA SINENSIS) DURING ORTHODOX BLACK TEA MANUFACTURING
نویسندگان
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 کاملAnti-Acanthamoeba effect of Camellia sinensis extract (black and green tea) in vitro
Background: Acanthamoeba is a resistant protozoan that causes severe diseases, such as GAE and CAK. Because many medications are ineffective on the parasite, the quest to find alternative drugs is in progress. Objective: This research was aim 13 ed to assess the performance of the black and green tea extracts on Acanthamoeba. Methods: The clinical isolate of Aca...
متن کاملExtraction Kinetics of phytochemicals and antioxidant activity during black tea (Camellia sinensis L.) brewing
BACKGROUND Tea is the most consumed beverage in the world which is second only to water. Tea contains a broad spectrum of active ingredients which are responsible for its health benefits. The composition of constituents extracted to the tea brew depends on the method of preparation for its consumption. The objective of this study was to investigate the extraction kinetics of phenolic compounds,...
متن کاملCadmium and Lead Content in Several Brands of Black Tea (Camellia sinensis) in Iran
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; ...
متن کاملHypotriacylglycerolemic and antiobesity properties of a new fermented tea product obtained by tea-rolling processing of third-crop green tea (Camellia sinensis) leaves and loquat (Eriobotrya japonica) leaves.
We manufactured a new fermented tea by tea-rolling processing of third-crop green tea (Camellia sinensis) leaves and loquat (Eriobotrya japonica) leaves. The mixed fermented tea extract inhibited pancreatic lipase activity in vitro, and effectively suppressed postprandial hypertriacylglycerolemia in rats. Rats fed a diet containing 1% freeze-dried fermented tea extract for 4 weeks had a signifi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Vietnam Journal of Science and Technology
سال: 2017
ISSN: 2525-2518,2525-2518
DOI: 10.15625/0866-708x/55/1/8318