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Black tea manufacture.
Author(s) -
CLOUGHLEY J. B.,
ELLIS R. T.,
HARRIS N.
Publication year - 1981
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1981.tb04806.x
Subject(s) - biology , fermentation , botany , food science
SUMMARY Tea shoots were comminuted by four commercial processing systems representing both orthodox, and the more intensive, unconventional methods. Greater amounts of endogenous flavanols were oxidised and higher levels of the flavin class of pigments were produced, during the fermentation of the unconventionally processed leaf. Detailed comparison of quality and all the other aspects affecting market value, demonstrated that the unconventional systems produced a more valuable product. The results are related to the characteristic tissue damage associated with each disruption technique.