Table 1 Details of medicinal plants and the percent yield of both crude and successive extraction
S/no. | Plant species [extraction solvent*] | Family name | Common name | Part used | FHI no.** | Percent yield (w/w) | |
|---|---|---|---|---|---|---|---|
Crude extraction | Successive extraction | ||||||
(I) Crude extraction | |||||||
1 | Leucaena leucocephala (Lam) De Wit [b] | Fabaceae | Lead tree | Seed | 112,022 | 4.60 | – |
2 | Garcinia kola Heckel [b] | Guttiferae | Bitter kola | Seed | 110,593 | 6.20 | – |
3 | Vernonia amygdalina Del. [b] | Asteraceae | Bitter leaf | Leaf | 110,023 | 6.40 | – |
(II) Successive extraction | |||||||
1 | V. amygdalina Del. [a] | ″ | ″ | ″ | ″ | – | 3.43 |
2 | V. amygdalina Del. [b] | ″ | ″ | ″ | ″ | – | 5.64 |