Seasonal variations in theaflavin, thear
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Laura S Malec
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Article
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1988
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John Wiley and Sons
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English
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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 duri