Skip to main content
. 2014 May;4(5):386–392. doi: 10.12980/APJTB.4.2014C1129

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.