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...
Guardado en:
| Autor principal: | |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00225142_v45_n2_p185_Malec |
| Aporte de: |
| id |
todo:paper_00225142_v45_n2_p185_Malec |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_00225142_v45_n2_p185_Malec2023-10-03T14:33:29Z Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas Malec, L.S. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, L.S. 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 |
| format |
JOUR |
| author |
Malec, L.S. |
| author_facet |
Malec, L.S. |
| author_sort |
Malec, L.S. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_00225142_v45_n2_p185_Malec |
| work_keys_str_mv |
AT malecls seasonalvariationsintheaflavinthearubiginandcaffeinecontentsofargentinianblackteas |
| _version_ |
1782028708032282624 |