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

Thirty‐three Argentinian black tea samples of three grades (BOP, BOPF and PF) obtained fortnightly were examined for their theaflavin (TF), thearubigin (TR) and total and extractable caffeine contents during the 1985/86 season. Total and extractable caffeine contents decreased gradually during most...

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Detalles Bibliográficos
Autor principal: Malec, Laura Sara
Publicado: 1988
Materias:
Black tea
caffeine
María S Vigo
seasonal variations
theaflavin
thearubigin
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00225142_v45_n2_p185_Malec
http://hdl.handle.net/20.500.12110/paper_00225142_v45_n2_p185_Malec
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00225142_v45_n2_p185_Malec
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spelling paper:paper_00225142_v45_n2_p185_Malec2023-06-08T14:51:16Z Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas Malec, Laura Sara Black tea caffeine María S Vigo seasonal variations theaflavin thearubigin Thirty‐three Argentinian black tea samples of three grades (BOP, BOPF and PF) obtained fortnightly were examined for their theaflavin (TF), thearubigin (TR) and total and extractable caffeine contents during the 1985/86 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 TF curves were consistent with there being a good linear correlation between them, whereas TR showed erratic fluctuations throughout the whole season. Copyright © 1988 John Wiley & Sons, Ltd Fil:Malec, L.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1988 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00225142_v45_n2_p185_Malec http://hdl.handle.net/20.500.12110/paper_00225142_v45_n2_p185_Malec
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Black tea
caffeine
María S Vigo
seasonal variations
theaflavin
thearubigin
spellingShingle Black tea
caffeine
María S Vigo
seasonal variations
theaflavin
thearubigin
Malec, Laura Sara
Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas
topic_facet Black tea
caffeine
María S Vigo
seasonal variations
theaflavin
thearubigin
description Thirty‐three Argentinian black tea samples of three grades (BOP, BOPF and PF) obtained fortnightly were examined for their theaflavin (TF), thearubigin (TR) and total and extractable caffeine contents during the 1985/86 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 TF curves were consistent with there being a good linear correlation between them, whereas TR showed erratic fluctuations throughout the whole season. Copyright © 1988 John Wiley & Sons, Ltd
author Malec, Laura Sara
author_facet Malec, Laura Sara
author_sort Malec, Laura Sara
title Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas
title_short Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas
title_full Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas
title_fullStr Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas
title_full_unstemmed Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas
title_sort seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas
publishDate 1988
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00225142_v45_n2_p185_Malec
http://hdl.handle.net/20.500.12110/paper_00225142_v45_n2_p185_Malec
work_keys_str_mv AT maleclaurasara seasonalvariationsintheaflavinthearubiginandcaffeinecontentsofargentinianblackteas
_version_ 1768545915281342464

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