Fractions Bio-Chemical Assay     Concentration (mg/ml)    
    0.05/0.2 0.10/0.4 0.15/0.6 0.20/0.8 0.25/1.0 0.30/1.2
0%  ethanol A 0.16 3.24 7.59 6.01 11.88 15.43
B 0.43 0.68 1.92 1.28 2.6 3.77
C 0.11 0.19 0.36 0.85 1.03 1.21
D 2.53 6.47 12.58 10.01 16.01 20.22
20% ethanol A 0.12 2.18 5.37 2.61 6.77 8.4
B 0.18 0.32 0.69 1.34 2.18 4.82
C 0.1 0.39 0.33 0.46 0.89 1.06
D 2.68 5.37 7.98 9.56 21.32 26.49
40% ethanol A 0.18 3.73 4.51 4.98 9.85 15.61
B 0.1 0.32 0.38 0.08 1.06 3.49
C 0.28 0.25 0.32 0.37 1.06 1.59
D 1.65 5.29 9 9.82 22.91 25.66
80% ethanol A 0.38 5.29 8.64 6.78 13.56 19.23
B 0.68 0.76 2.64 3.53 3.58 6.91
C 0.56 0.58 0.64 0.49 1.27 1.88
D 5.2 9.56 15.46 11.28 21.01 28.97
Biochemical analysis of the four different fractions extracted from the leaves of Vallisneriaspiralis L. A- Phenols; B-Flavonoids; C-Tannins and D-Antioxidant activity. The concentrations 0.5mg/ml-3.0mg/ml are for phenols, Tannins and Antioxidant activity and 0.2mg/ml-1.2mg/ml is specific for Flavonoid assay.
Table 1: Biochemical Analysis.