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Table 5 Minimum inhibitory concentrations for different fractions of Isodon rugosus against the tested bacterial strains expressed as μg/ml

From: Demonstration of biological activities of extracts from Isodon rugosus Wall. Ex Benth: Separation and identification of bioactive phytoconstituents by GC-MS analysis in the ethyl acetate extract

Samples P. m S. a E. c B. c S. t K. p P. a
Ir.Cr 6.66 ± 0.83 2.50 ± 0.00 8.33 ± 0.83 2.66 ± 1.30 12.50 ± 2.88 8.33 ± 0.83 4.16 ± 1.66
Ir.Hex 18.33 ± 0.83 16.66 ± 0.83 2.83 ± 1.16 1.33 ± 0.60 8.33 ± 2.20 10.83 ± 2.20 12.50 ± 1.44
Ir.Cf 2.50 ± 0.00 3.66 ± 1.96 1.00 ± 0.00 5.33 ± 2.60 2.01 ± 0.50 1.16 ± 0.66 2.50 ± 0.00
Ir.EtAc 7.50 ± 1.44 7.50 ± 1.44 4.16 ± 0.83 2.83 ± 1.16 3.33 ± 0.83 1.33 ± 0.60 2.83 ± 1.16
Ir.Aq 9.16 ± 0.83 11.66 ± 0.83 10.00 ± 1.44 10.83 ± 2.20 7.50 ± 1.44 5.00 ± 1.44 5.00 ± 1.44
Ir.Sp 1.00 ± 0.00 0.83 ± 0.16 5.00 ± 1.44 2.50 ± 0.00 4.50 ± 1.89 1.00 ± 0.00 3.33 ± 0.83
Ir.Flv 2.83 ± 1.16 1.00 ± 0.00 1.50 ± 0.50 6.66 ± 2.20 2.00 ± 0.50 2.66 ± 1.30 5.00 ± 1.44
Ceftriaxone 0.50 ± 0.00 0.66 ± 0.16 2.50 ± 0.00 0.83 ± 0.16 0.66 ± 0.16 0.50 ± 0.00 1.33 ± 0.60
  1. Data is represented as mean ± SEM, (n = 3)
  2. Keys:
  3. P. m Protius mirabilis, S. a Streptococcus aureus, E. c Escherichia coli, B. c Bacillus cereus, S. t Salmonella typhi, K. p Klebsiella pneumonia, P. a Pseudomonas aeruginosa, E. f Enterococcus faecalis, Ir.Cr Crude methanolic extract, Ir.Hex n-hexane fraction, Ir.Cf Chloroform fraction, Ir.EtAc Ethyl acetate fraction, Ir.Aq Aqueous fraction, Ir.Sp Saponins, Ir.Fl Flavonoids