Research Article
Melanogenesis and Antityrosinase Activity of Selected South African Plants
Table 2
Inhibitory activity of selected plants on tyrosinase when both tyrosine and L-DOPA are used.
| Plant extracts
| (%) | | Tyrosine | L-DOPA |
| | Aloe aculeata Pole-Evans (Leaves) | 31 | — | | Aloe arborescens Mill. (Leaves) | — |
*
| | Aloe ferox Mill. (Leaves) | 60 | — | | Aloe pretoriensis Pole-Evans (Leaves) | 17 | — | | Aloe sessiliflora Pole-Evans (Leaves) | 13 | — | | Aloe vera (L.) Burm.f. (Leaves) | — |
*
| | Calodendrum capensis Thumb. (Leaves) | — |
*
| | Calodendrum capensis Thumb. (Bark) | — |
*
| | Harpephyllum caffrum Bernh. (Leaves) | 90 | 70 | | Harpephyllum caffrum Bernh. (Bark) | 92 | 60 | | Sclerocarya birrea (A. Rich.) Hochst. (Nuts) | — |
*
| | Ximenia americana L. (Nuts) | — |
*
|
|
|
*not tested, —not active.
|
