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Table 4 Antibacterial activity of Isodon rugosus against various bacterial strains expressed in mm as ZOI

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 E. f
Ir.Cr 17.2 ± 0.37 9.1 ± 0.34 7.2 ± 0 .55 --- 28.2 ± 0.40 18.2 ± 0.35 9.3 ± 0.31 21.3 ± 0.36
Ir.Hex 07.3 ± 0.34 9.1 ± 0.52 --- 7.1 ± 0.49 18.2 ± 0.37 17.2 ± 0.37 8.3 ± 0.25 23.3 ± 0.36
Ir.Cf 11.2 ± 0.32 19.2 ± 0.47 7.1 ± 0.26 --- 6.1 ± 0.46 15.3 ± 0.35 9.2 ± 0.31 19.3 ± 0.39
Ir.EtAc 9.2 ± 0.40 29.3 ± 0.28 21.2 ± 0.40 17.1 ± 0.46 28.2 ± 0.35 18.2 ± 0.40 7.1 ± 0.46 8.2 ± 0.37
Ir.Aq 21.2 ± 0.31 9.2 ± 0.31 --- 13.2 ± 0.20 9.2 ± 0.40 9.2 ± 0.40 17.2 ± 0.37 ---
Ir.Sp 18.2 ± 0.43 27.2 ± 0.23 24.1 ± 0.52 26.3 ± 0.34 8.2 ± 0.37 21.3 ± 0.39 9.2 ± 0.40 19.3 ± 0.38
Ir.Flv 33.1 ± 0.49 16.2 ± 0.54 12.2 ± 0.54 31.3 ± 0.31 16.2 ± 0.23 27.3 ± 0.35 19.2 ± 0.38 13.2 ± 0.45
Ceft 35.2 ± 0.37 31.1 ± 0.34 9.2 ± 0.44 29.3 ± 0.42 19.2 ± 0.37 25.4 ± 0.40 36.1 ± 0.34 21.3 ± 0.41
  1. Results are expressed as zone of inhibition (ZOI). Data is represented as mean ± SEM, (n = 3).
  2. Keys:
  3. P. m Proteus 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, Ceft Ceftriaxone