Table 10 Phytochemical components identified in the most active (ethyl acetate) fraction of methanol extract of I. gabonensis leaf by GC-FID
Phytoconstituent | Retention time (min) | Peak area | Concentration (mg/100Â g) |
|---|---|---|---|
( +)- Catechin | 13.740 | 91.385 | 0.892 |
Resveratrol | 15.037 | 64.715 | 0.0000091 |
Genistein | 15.500 | 56.013 | 0.0000087 |
Daidzein | 15.618 | 60.347 | 0.0000094 |
Apigenin | 15.812 | 65.431 | 0.142 |
Diadzin | 16.369 | 105.857 | 0.000016 |
Butein | 16.669 | 97.409 | 0.000015 |
Biochanin | 17.090 | 177.603 | 0.000029 |
Naringenin | 17.358 | 81.794 | 2.234 |
Luteolin | 17.767 | 191.769 | 5.840 |
Kaempferol | 18.049 | 151.628 | 21.739 |
(-)- Epicatechin | 19.515 | 132.593 | 0.0022 |
(-)- Epigallocatechin | 20.461 | 271.438 | 0.0032 |
Gallocatechin | 21.817 | 153.273 | 0.000074 |
Quercetin | 22.595 | 139.002 | 16.643 |
(-)- Epicatechin-3-gallate | 22.781 | 90.668 | 0.00037 |
(-)- Epigallocatechin-3-gallate23.468 | 73.745 | 0.00021 | Â |
Isorhamnetin | 23.964 | 56.447 | 0.0000029 |
Robinetin | 24.182 | 74.907 | 0.000012 |
Myricetin | 24.721 | 64.425 | 5.216 |
Baicalin | 25.099 | 46.428 | 0.0000072 |
Nobiletin | 25.479 | 23.593 | 0.0000036 |
Baicalin | 25.860 | 13.446 | 0.0000021 |
Isoquercetin | 25.953 | 54.831 | 0.033 |
Tangeretin | 26.633 | 9.796 | 0.0000015 |
Artemetin | 26.832 | 11.017 | 0.0000017 |
Silymarin | 26.948 | 12.888 | 0.0000020 |
Hesperidin | 28.524 | 5.043 | 0.0000035 |
Tannic acid | 19.522 | 272.295 | 74.9712 |