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Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas

✍ Scribed by Laura S Malec

Publisher: John Wiley and Sons
Year: 1988
Tongue: English
Weight: 257 KB
Volume: 45
Category: Article
ISSN: 0022-5142
DOI: 10.1002/jsfa.2740450210

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✦ Synopsis

Thirty-three Argentinian black tea samples of three grades (BOP, BOPF and PF) obtained fortnightly were examined for their theaflavin ( T F ) , thearubigin ( T R ) and total and extractable caffeine contents during the 1985 186 season. Total and extractable caffeine contents decreased gradually during most of the season after an early rapid increase. TF contents fluctuated following climatic variations, decreasing after rainy periods. Total colour and T F curves were consistent with there being a good linear correlation between them, whereas TR showed erratic fluctuations throughout the whole season.

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