Evidence-Based Complementary and Alternative Medicine / 2012 / Article / Tab 4

Research Article

Antidiabetic Activity of Gnidia glauca and Dioscorea bulbifera: Potent Amylase and Glucosidase Inhibitors

Table 4

The retention time of chromatographic peak in the chromatogram of extracts of both G. glauca and D. bulbifera along with standards.

Peak no.Retention time of plant extractsStandard
12345678910111213141516Gallic acidQuercetinDiosgenin

11.67534.9771.82723.85423.85923.96425.54224.62546.841.4791.4821.83146.57119.29819.31319.3135.29838.38247.714
21.78337.68217.45135.51947.37727.79828.34227.89147.4527.1891.78128.35247.28230.09830.19830.098
332.52638.46323.96938.3930.05228.50128.35328.0411.86728.69530.4534.31530.452
438.46639.77338.36841.46630.44129.78429.40329.4347.14528.87733.44234.90332.211
546.9941.55645.78647.49530.83330.57930.20130.23925.51230.68334.31635.48834.381
647.72141.94847.40631.64230.94230.60330.64427.94230.94734.89436.45146.773
746.25149.78632.2231.35730.99631.05128.06231.59135.50537.76
846.94732.49732.74132.45631.28229.47532.71735.99438.687
947.68332.91732.93932.68331.9629.80437.06737.76546.74
1049.8934.14433.34833.08532.50230.28837.33438.117
1134.35935.13234.91533.1330.69637.9638.69
1234.67935.71835.50634.95431.09641.55839.228
1334.92336.63936.43735.16831.33446.261
1435.24737.25937.1535.5532.00446.712
1536.17637.50437.33535.74432.53450.066
1636.77437.87137.72437.09936.494
1737.0438.85738.70637.37237.098
1837.27341.69146.84937.81337.376
1937.44347.55547.56938.00838.002
2037.79241.57546.923
2138.28545.36147.588
2238.5646.779
2340.345
2441.009
2547.029

Sample numbers assigned to plant extracts are D. bulbifera bulb extracts (1) petroleum ether, (2) ethyl acetate, (3) methanol, (4) 70% ethanol; G. glauca leaf extracts (5) petroleum ether, (6) ethyl acetate, (7) methanol, (8) 70% ethanol; G. glauca flower extracts (9) petroleum ether, (10) ethyl acetate, (11) methanol, (12) 70% ethanol; G. glauca stem extracts (13) petroleum ether, (14) ethyl acetate, (15) methanol, and (16) 70 % ethanol. (—) No peak.

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