Table 2 Details of extraction and fractionation of medicinal orchids obtained from AR
S.No. | Name | Part used for fractionation | Fraction/Extract | Yield (g) |
|---|---|---|---|---|
1 | Rhynchostylis retusa (Rr)- 2.34 kg | Roots (1.178 kg) | diethyl ether fraction (RrR Et2O) | 18.52 |
n-butanol fraction (RrR n-BuOH) | 12.77 | |||
aqueous extract (RrR Aq ext) | 5.00 | |||
Stem (0.354 kg) | diethyl ether fraction (RrS Et2O) | 8.44 | ||
n-butanol fraction (RrS n-BuOH) | 4.82 | |||
aqueous extract (RrS Aq ext) | 11.80 | |||
Leaves (0.726 kg) | diethyl ether fraction (RrL Et2O) | 6.28 | ||
n-butanol fraction (RrL n-BuOH) | 10.92 | |||
aqueous extract (RrL Aq ext) | 7.01 | |||
2 | Tropidia curculioides (Tc) - 1.622 Kg | Roots (0.922 kg) | diethyl ether fraction (TcR Et2O) | 5.18 |
n-butanol fraction (TcR n-BuOH) | 16.46 | |||
aqueous extract (TcR Aq ext) | 38.99 | |||
Stem (0.302 kg) | diethyl ether fraction (TcS Et2O) | 2.13 | ||
n-butanol fraction (TcS n-BuOH) | 15.62 | |||
aqueous extract (TcS Aq ext) | 4.19 | |||
Leaves (0.310 kg) | diethyl ether fraction (TcL Et2O) | 16.00 | ||
n-butanol fraction (TcL n-BuOH) | 11.96 | |||
aqueous extract (TcL Aq ext) | 1.65 | |||
3 | Satyrium nepalense (Sn)- 4.233 kg | Pseudobulb (0.874 kg) | n-hexane fraction (SnP n-Hex) | 5.12 |
dichloromethane fraction (SnP DCM) | 8.32 | |||
ethyl acetate fraction (SnP EtOAc) | 2.18 | |||
aqueous extract (SnP Aq ext) | 4.32 | |||
Flower (0.501 kg) | n-hexane fraction (SnF n-Hex) | 3.50 | ||
dichloromethane fraction (SnF DCM) | 2.10 | |||
ethyl acetate fraction (SnF EtOAc) | 3.42 | |||
aqueous extract (SnF Aq ext) | 5.12 | |||
Leaves and Stem (2.550 kg) | n-hexane fraction (SnL n-Hex) | 4.30 | ||
dichloromethane fraction (SnL DCM) | 6.02 | |||
ethyl acetate fraction (SnL EtOAc) | 2.12 | |||
aqueous extract (SnL Aq ext) | 6.30 |