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Table 2 HPLC characterization of isolated theaflavin

From: Exploring the potential of black tea based flavonoids against hyperlipidemia related disorders

Solvents Time Means
30 min 60 min 90 min
Theaflavin1 (mg/g)
Ethanol 2.01 ± 0.03 2.42 ± 0.01 2.11 ± 0.04 2.18 ± 0.06a
Methanol 1.89 ± 0.05 2.03 ± 0.03 1.96 ± 0.01 1.96 ± 0.03b
Water 0.562 ± 0.006 0.933 ± 0.003 0.761 ± 0.009 0.751 ± 0.001c
  1.48 ± 0.001c 1.79 ± 0.006a 1.61 ± 0.004b  
Theaflavin2A (mg/g)
Ethanol 3.01 ± 0.36 3.92 ± 0.03 3.31 ± 0.01 3.41 ± 0.03a
Methanol 2.69 ± 0.02 3.12 ± 0.06 2.91 ± 0.03 2.90 ± 0.09b
Water 0.963 ± 0.003 1.45 ± 0.03 1.12 ± 0.02 1.17 ± 0.03c
  2.22 ± 0.02c 2.83 ± 0.05a 2.44 ± 0.03b  
Theaflavin 2B (mg/g)
Ethanol 1.26 ± 0.02 1.92 ± 0.03 1.59 ± 0.02 1.59 ± 0.03a
Methanol 0.981 ± 0.06 1.22 ± 0.05 1.13 ± 0.07 1.11 ± 0.09b
Water 0.691 ± 0.04 1.03 ± 0.01 0.878 ± 0.03 0.864 ± 0.006c
  0.971 ± 0.001c 1.39 ± 0.03a 1.18 ± 0.06b  
Theaflavin 3 (mg/g)
Ethanol 2.99 ± 0.03 3.61 ± 0.06 3.36 ± 0.02 3.32 ± 0.06a
Methanol 2.05 ± 0.06 2.96 ± 0.04 2.41 ± 0.09 2.47 ± 0.01b
Water 0.998 ± 0.004 1.12 ± 0.01 1.05 ± 0.04 1.04 ± 0.03c
  2.01 ± 0.09b 2.56 ± 0.03a 2.27 ± 0.09a  
  1. Values are mean ± SEM (n = 03). Values in same column within each parameter with different letters were significantly different from each other
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