Near-infrared reflectance prediction of quality, theaflavin content and moisture content of black tea
โ Scribed by Martin N. Hall; Alastair Robertson; Christopher N.G. Scotter
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 608 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0308-8146
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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
## Abstract Variation in polyphenot oxidase activity and levels of total polyphenols and catechins with respect to different clones and shoot components, and its effect on quality of black tea (Camellia sinensis (L) 0 Kuntze, were studied. There was a wide variation in polyphenol oxidase activity o