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Table 2 Antimycobacterial activity of different extracts of A. galanga using microplate alamar blue assay

From: Evaluating the anti Mycobacterium tuberculosis activity of Alpinia galanga (L.) Willd. axenically under reducing oxygen conditions and in intracellular assays

Strains 1: 100 VMTB VMTB A. galanga extracts
    Acetone (μg/ml) Ethanolic (μg/ml)
    25 50 100 25 50 100
% reduction of Alamar Blue dye
H37Rv 21.71 ± 2.84 66.05 ± 5.03 56.76 ± 9.51 25.10 ± 11.15 18.51 ± 3.84 57.27 ± 6.11 14.13 ± 6.46 12.88 ± 7.10
S1 21.09 ± 3.42 56.27 ± 2.30 53.84 ± 2.47 48.93 ± 11.10 21.16 ± 6.22 47.75 ± 13.04 35.60 ± 2.62 16.63 ± 4.40
S2 22.33 ± 7.00 59.17 ± 4.93 52.78 ± 6.74 42.90 ± 12.23 15.23 ± 6.17 41.45 ± 5.70 14.31 ± 6.64 14.87 ± 7.91
S3 19.83 ± 1.80 59.74 ± 10.58 55.58 ± 17.71 52.89 ± 16.92 18.21 ± 2.29 42.05 ± 6.60 32.15 ± 7.40 18.55 ± 4.40
R1 14.40 ± 5.71 51.08 ± 11.91 34.01 ± 6.32 25.57 ± 6.85 21.24 ± 5.62 23.39 ± 3.53 16.89 ± 1.10 13.08 ± 5.78
R2 22.11 ± 2.47 60.93 ± 9.00 53.38 ± 8.37 36.98 ± 8.84 20.04 ± 1.22 36.49 ± 4.06 19.74 ± 4.38 15.74 ± 3.86
R3 16.73 ± 4.14 50.50 ± 4.04 37.10 ± 5.03 30.48 ± 8.23 13.95 ± 2.06 42.59 ± 7.22 14.25 ± 3.88 12.25 ± 2.87
  1. Values in bold indicate those parameters for which the percent reduction in plant extract containing wells was less than that for the 1:100 VMTB control.