Natural Chemistry
COMPARISON OF TANNIN AND CAFFEINE CONTENT BETWEEN ROOIBOS AND BLACK TEA
Beverage
Caffeine
Tannin
Reference
Rooibos
Nil
4.4
Blommaert & Steenkamp, 1978
6.0
RIFF, 1983
Black Tea
3.87 - 3.94
Ouwour et al., 1988
3.23 - 3.67
Ouwour et al., 1988
2.86 - 3.93
Ouwour et al., 1988
7.18 - 15.0
Mitchell, 1936
13.0
Hooper, 1925
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