Table 6.
MIC of different isolates from P. guajava L. leaf
| Dry extract/isolate | MIC (µg/ml) |
||
|---|---|---|---|
| S. aureus | E. coli | C. albicans | |
| Aq. ext. | 5.25 | 10.5 | 5.25 |
| 16% ethan. | 10.5 | 10.5 | 5.25 |
| 50% ethan. | 5.25 | 10.5 | 10.5 |
| 95% ethan. | 5.25 | 10.5 | 5.25 |
| P.E. | 7.5 | 7.5 | 7.5 |
| Chloroform. | 0.78125 (this was least tested concentration) | 3.125 | 6.25 |
| Et. Ac. | 2.5 | 2.5 | 2.5 |
| But. | 5 | 5 | 5 |
| Quercetin | 1.25 | 1.25 | 1.25 |
| Quercetin-3-O-α-L-arabinopyranoside | 0.09375 | 0.1875 | 0.375 |
| Quercetin-3-O-β-D-arabinopyranoside | 0.1875 | 0.09375 | 0.1875 |
Aq. ext., aqueous extract; 16% ethan., ethanolic (16%) extract; 50% ethan., ethanolic (50%) extract; 95% ethan., ethanolic (95%) extract; P.E., petroleum ether fraction of the 50% alcoholic extract; chloroform., chloroform fraction of the 50% alcoholic extract; Et. Ac., ethyl acetate fraction of the 50% alcoholic extract; but, butanol fraction of the 50% alcoholic extract.