Table 3.
The MIC values of the isolated components of the acidic fractions of the gums against the Gram-negative bacteria (µg/mL)
| Sub-fractions of acidic fractions ‘a’ and ‘b’ of gums | Escherichia coli | Salmonella typhimurium | Serratia marscens | Pseudomonas aeruginosa | Alcaligenes faecalis | Enterobacter aerogenes | Pseudomonas fluorescens | Proteus vulgaris | Porphyromonas gingivalis |
|---|---|---|---|---|---|---|---|---|---|
| Moronic acid | 20 | 20 | 20 | 20 | 20 | 20 | 10 | 10 | 10 |
| Oleanonic acid | 20 | 20 | 20 | 20 | 20 | 10 | 10 | 10 | 10 |
| Ursonic acid | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Oleanolic acid | 25 | 25 | 25 | 20 | 25 | 25 | 25 | 25 | 25 |
| Isomasticadienonic acid | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| 3-epi-isomasticadienolic acid | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Masticadienonic acid | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Dihydromasticadienonic acid | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 5 |
| 3-O-acetyl-3epi(iso) masticadienolic acid | 0.01 | 0.02 | 0.01 | 0.05 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| Masticadienolic acid | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Dihydromasticadienolic acid | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 3-acetoxy-3-epiiso-masticadienolic acid | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 3-acetoxy-3-epimasticadienolic acid | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |