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Table 1 Extraction yield of theaflavin and thearubigins

From: Lipid peroxidation diminishing perspective of isolated theaflavins and thearubigins from black tea in arginine induced renal malfunctional rats

Solvents

Time

Means

30 min

60 min

90 min

Theaflavin (g/100 g black tea)

 Ethanol

3.11 ± 0.20

4.05 ± 0.19

3.12 ± 0.10

3.42 ± 0.27a

 Methanol

2.05 ± 0.16

3.25 ± 0.15

3.01 ± 0.08

2.77 ± 0.25b

 Water

1.99 ± 0.04

2.95 ± 0.19

2.02 ± 0.04

2.32 ± 0.13c

 

2.38 ± 0.1c

3.41 ± 0.1a

2.71 ± 0.1b

 

Thearubigins (g/100 g black tea)

 Ethanol

12.11 ± 0.20

15.32 ± 0.19

12.12 ± 0.10

13.18 ± 1.07a

 Methanol

11.05 ± 0.16

13.25 ± 0.15

12.01 ± 0.08

12.10 ± 1.05b

 Water

8.99 ± 0.04

10.95 ± 0.19

9.32 ± 0.04

9.75 ± 0.42c

 

10.71 ± 0.4b

13.17 ± 0.5a

11.15 ± 0.9c

 
  1. Values are mean ± SD. Values in same column within each parameter with different letters were significantly different from each other (p ≤ 0. 05)