Table 5. Inhibition zones of L. elliptica and L. resinosa towards Gram-negative bacteria strains and yeast strain.
Plant part | Crude extract/Essential oil | Inhibition zone (mm) |
||
PA | EC | SC | ||
L. elliptica | ||||
Stem | n-Hexane (MPSH) | 10.00±0.00 | 13.00±1.73 | 10.33±0.58 |
Dichloromethane (MPSD) | 12.00±0.00 | 16.33±1.15 | 10.00±0.00 | |
Chloroform (MPSC) | 10.00±0.00 | 14.67±1.15 | 11.00±0.00 | |
Ethyl acetate (MPSE) | 9.00±0.00 | 9.33±0.58 | 12.00±1.00 | |
Methanol (MPSM) | NI | NI | NI | |
Root | n-Hexane (MPRH) | 9.00±0.00 | 9.67±1.53 | NI |
Dichloromethane (MPRD) | 9.00±0.00 | 12.67±0.58 | 11.00±0.00 | |
Chloroform (MPRC) | 8.33±0.58 | 11.33±0.58 | 10.33±0.58 | |
Ethyl acetate (MPRE) | 7.67±0.58 | 9.33±2.52 | 10.67±0.58 | |
Methanol (MPRM) | NI | NI | NI | |
Inner bark | n-Hexane (MPIH) | 9.67±1.15 | NI | 10.00±1.00 |
Dichloromethane (MPID) | 10.00±2.00 | 7.67±1.15 | NI | |
Chloroform (MPIC) | 9.00±1.00 | 7.33±0.58 | NI | |
Ethyl acetate (MPIE) | 10.00±2.00 | NI | 10.00±0.00 | |
Methanol (MPIM) | 9.00±1.00 | NI | NI | |
L. resinosa | ||||
Stem | n-Hexane (MESH) | 15.00±0.00 | 19.33±1.15 | 13.67±1.15 |
Dichloromethane (MESD) | 14.00±0.00 | 18.00±0.00 | 12.67±0.58 | |
Chloroform (MESC) | 13.67±1.15 | 18.67±1.15 | 13.33±1.15 | |
Ethyl acetate (MESE) | 11.33±0.58 | 15.00±1.00 | 13.33±1.53 | |
Methanol (MESM) | 9.67±1.15 | NI | NI | |
Root | n-Hexane (MERH) | 10.33±0.58 | 15.00±0.00 | 12.67±0.58 |
Dichloromethane (MERD) | 10.33±0.58 | 11.67±1.15 | 11.33±0.58 | |
Chloroform (MERC) | 10.00±1.00 | 15.00±2.65 | 11.00±1.00 | |
Ethyl acetate (MERE) | 9.67±0.58 | 15.00±2.00 | 11.00±1.00 | |
Methanol (MERM) | 9.67±1.53 | 9.00±0.00 | NI | |
Inner bark | n-Hexane (MEIH) | 13.67±1.53 | 13.33±2.31 | 11.00±0.00 |
Dichloromethane (MEID) | 13.33±0.58 | 13.67±2.08 | 11.33±1.53 | |
Chloroform (MEIC) | 13.33±0.58 | 13.33±1.53 | 10.00±1.00 | |
Ethyl acetate (MEIE) | 13.00±1.73 | 10.00±1.00 | 10.00±0.00 | |
Methanol (MEIM) | 10.33±0.58 | 9.00±0.00 | NI | |
L. elliptica | ||||
Twig | Essential oil (MPTO) | 14.00±1.00 | 13.00±0.00 | 10.67±1.15 |
Stem | Essential oil (MPSO) | 12.00±1.73 | 12.33±0.58 | 10.67±1.15 |
Inner stem | Essential oil (MPISO) | 12.00±1.00 | 11.33±1.53 | 10.00±0.00 |
Root | Essential oil (MPRO) | 12.33±0.58 | 11.67±0.58 | 11.00±0.00 |
Small root | Essential oil (MPRSO) | 11.00±1.00 | 11.00±0.00 | 10.00±0.00 |
Inner root | Essential oil (MPIRO) | 8.33±0.58 | 9.00±0.00 | 9.67±0.00 |
Leaf | Essential oil (MPLO) | 10.00±0.00 | 9.00±0.00 | NI |
L. resinosa | ||||
Twig | Essential oil (METO) | 12.67±1.15 | 10.33±0.58 | 11.33±0.58 |
Stem | Essential oil (MESO) | 11.33±1.15 | 11.00±0.00 | 10.67±1.15 |
Inner stem | Essential oil (MEISO) | 11.33±1.15 | 11.67±1.15 | 11.67±1.15 |
Root | Essential oil(MERO) | 8.00±0.00 | 8.00±0.00 | NI |
Small root | Essential oil (MERSO) | 14.00±1.73 | 12.33±0.58 | 11.00±1.73 |
Inner root | Essential oil (MEIRO) | 10.67±1.15 | 12.00±0.00 | 9.33±0.58 |
Leaf | Essential oil(MELO) | 12.33±1.15 | 14.67±0.58 | 11.00±1.15 |
Control | Negative | NI | NI | NI |
NI: No inhibition; PA: Pseudomonas aeruginosa; EC: Escherichia coli; SC: S. cerevisiae.