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Abstract:

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

Registro:

Documento: Artículo
Título:Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas
Autor:Malec, L.S.
Filiación:Departamento de Química Orgánica (Area Bromatología), Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, Buenos Aires, 1428, Argentina
Palabras clave:Black tea; caffeine; María S Vigo; seasonal variations; theaflavin; thearubigin
Año:1988
Volumen:45
Número:2
Página de inicio:185
Página de fin:190
DOI: http://dx.doi.org/10.1002/jsfa.2740450210
Título revista:Journal of the Science of Food and Agriculture
Título revista abreviado:J. Sci. Food Agric.
ISSN:00225142
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00225142_v45_n2_p185_Malec

Referencias:

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Citas:

---------- APA ----------
(1988) . Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas. Journal of the Science of Food and Agriculture, 45(2), 185-190.
http://dx.doi.org/10.1002/jsfa.2740450210
---------- CHICAGO ----------
Malec, L.S. "Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas" . Journal of the Science of Food and Agriculture 45, no. 2 (1988) : 185-190.
http://dx.doi.org/10.1002/jsfa.2740450210
---------- MLA ----------
Malec, L.S. "Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas" . Journal of the Science of Food and Agriculture, vol. 45, no. 2, 1988, pp. 185-190.
http://dx.doi.org/10.1002/jsfa.2740450210
---------- VANCOUVER ----------
Malec, L.S. Seasonal variations in theaflavin, thearubigin and caffeine contents of argentinian black teas. J. Sci. Food Agric. 1988;45(2):185-190.
http://dx.doi.org/10.1002/jsfa.2740450210