Quantitative Analysis of Tea Constituents
نویسندگان
چکیده
منابع مشابه
Quantitative analysis of major constituents in green tea with different plucking periods and their antioxidant activity.
The objective of this study was to determine the relationship between the plucking periods and the major constituents and the antioxidant activity in green tea. Green tea was prepared from leaves plucked from the end of April 2013 to the end of May 2013 at intervals of one week or longer. The contents of theanine, theobromine, caffeine, catechin (C), and gallocatechin gallate (GCg) were signifi...
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Green tea is considered as a dietary source of antioxidant nutrients, which acts upon human health. Green tea leaves contain three main components in the form of simple hydroxy benzoic acids such as gallic acid, propyl gallate and xanthic bases (caffeine), have been reported to prevent or delay a number of degenerative diseases and act mainly upon the central nervous system and stimulating wake...
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متن کاملphotoluminescence quantitative analysis of gallic acid and caffeine in green tea using multi-way chemometric approaches
green tea is considered as a dietary source of antioxidant nutrients, which acts upon human health. green tea leaves contain three main components in the form of simple hydroxy benzoic acids such as gallic acid, propyl gallate and xanthic bases (caffeine), have been reported to prevent or delay a number of degenerative diseases and act mainly upon the central nervous system and stimulating wake...
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ژورنال
عنوان ژورنال: Chagyo Kenkyu Hokoku (Tea Research Journal)
سال: 1990
ISSN: 0366-6190
DOI: 10.5979/cha.1990.43