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Green tea, as a non-fermented tea, retains the original chemical components of tea completely. This section details the research on green tea in phytochemistry and classifies the main compounds in green tea.
Data shown in Table 1 indicates that the xanthine alkaloid content of green tea varies considerably. Outside of the range shown in Table 1, it has been reported that only caffeine content in...
14 Νοε 2019 · In this review, production methods, chemical composition and health benefit of green tea have been summarized.
Green Tea © Steven Foster This fact sheet provides basic information about green tea—common names, what the science says, potential side effects and cautions, and resources for more information. Common Names —green tea, Chinese tea, Japanese tea Latin Name — Camellia sinensis All types of tea (green, black, and oolong) are produced from the
Green teas are foremost, but not exclusively, produced in China and Japan. A number of special green teas is produced, e.g., in Japan gyokuro (a shaded green tea),tencha(alsoshaded, butmostlygroundtoyieldmatcha),senchaandgenmaicha (a blend of sencha and toasted hulled rice). In China a number of special green teas are known, such as dragon well ...
Soluble constituents in green tea. Tea leaf contains a very large amount of polyphenols, which is the most specific feature of tea. These phenolics are catechins, flavanols, leucoanthocyanines and phenolic acid and their derivatives. Among them catechins are predominant. Caffeine and amino acids are also known as important components.
Chemical constituents of Japanese green tea in different stages of growth and crop seasons are shown in the table below. During the development of tea shoots, total contents of nitrogen, tannin, caffeine, and amino acids decreases. The phosphorus and potassium contents are high in the early harvest(young leaves), while calcium and free.
