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. 2018 Mar 6;26(3):554–562. doi: 10.1016/j.sjbs.2018.03.002

Table 2.

Antibacterial activity and minimum inhibitory concentrations of 16-hydroxy betulinic acid.

Bacteria Zone of growth inhibition (in mm)a
Minimum inhibition concentration (μg/ml)
16-hydroxy betulinic acid Kanb
Bacillus subtilis IFO 3232 16 ± 0.7 21.5 ± 0.7 31.5
Sarcina lutea IAM 1671 17.5 ± 0.4 16 ± 1.1 31.5
Escherichia coli IFO 3007 14 ± 1.3 20.5 ± 1.2 62.5
Xanthomonas campestris IAM 1671 14 ± 0.9 24 ± 1.4 62.5
Klebsiella pneumoniae ATTC 10,031 12 ± 1.7 20 ± 0.6 125
Pseudomonas sp. ATCC 13,867 14.5 ± 0.3 20 ± 1.2 125
a

Diameter of inhibition zones (mm) of the compound around the discs (6 mm) impregnated with 10 μL/disc corresponding to 100 μg/disc.

b

Kanamycin (30 μg). Values are given as mean ± S.D of triplicate experiment and considered to be significantly different at P < 0.05.

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