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Table 1 Antibacterial activity of Polygonum hydropiper extracts and saponins against bacterial strains

From: Chemical profiling, antimicrobial and insecticidal evaluations of Polygonum hydropiper L

Samples Conc. μg/ml Diameter of the inhibitory zone (mm) Mean ± SEM (n = 3)
Enterococcus faecalis Klebsiella pneumonia Escherichia coli Proteus mirabilis Staphylococcus aureus Salmonella typhi Pseudomonas aeruginosa
Crude (Ph.Cr) 25 5.33 ± 0.88 6.33 ± 0.66 0.00 ± 0.00 11.00 ± 0.00 10.00 ± 0.57 11.33 ± 1.20 15.66 ± 1.85
50 14.00 ± 0.57 10.33 ± 0.33 0.00 ± 0.00 17.33 ± 0.88 14.33 ± 0.33 14.00 ± 0.57 20.33 ± 0.88
100 17.33 ± 0.88 14.00 ± 0.00 9.00 ± 0.57 34.00 ± 1.15 18.66 ± 0.66 21.33 ± 0.88 25.33 ± 1.45
Ethyl acetate (Ph.EtAc 25 9.33 ± 0.33 0.00 ± 0.00 0.00 ± 0.00 11.66 ± 1.20 8.33 ± 0.88 8.00 ± 0.57 13.00 ± 0.57
50 18.33 ± 0.88 7.00 ± 0.57 8.33 ± 0.88 18.33 ± 0.66 13.66 ± 1.20 15.66 ± 0.66 18.33 ± 0.66
100 27.00 ± 0.57 13.33 ± 0.88 15.00 ± 0.00 27.66 ± 2.18 18.33 ± 0.88 20.73 ± 1.00 24.00 ± 0.57
Chloroform (Ph.Chf) 25 13.66 ± 0.33 0.00 ± 0.00 8.00 ± 0.57 12.66 ± 3.40 7.33 ± 0.88 17.33 ± 0.66 18.66 ± 1.20
50 19.00 ± 0.57 8.00 ± 0.57 14.33 ± 0.33 15.33 ± 2.02 11.66 ± 1.45 23.00 ± 0.57 23.00 ± 1.00
100 31.66 ± 1.20 15.60 ± 1.15 18.00 ± 1.52 21.00 ± 1.73 16.00 ± 1.15 29.33 ± 0.88 31.66 ± 2.18
Butanol (Ph.Bt) 25 7.00 ± 1.15 0.00 ± 0.00 0.00 ± 0.00 14.00 ± 0.57 13.66 ± 1.20 11.33 ± 0.66 7.33 ± 0.88
50 11.00 ± 1.15 0.00 ± 0.00 0.00 ± 0.00 19.66 ± 1.20 18.66 ± 1.45 14.00 ± 1.52 12.66 ± 0.66
100 21.00 ± 0.00 8.00 ± 0.00 11.33 ± 0.88 29.00 ± 0.00 23.00 ± 1.15 19.00 ± 0.57 16.00 ± 1.52
n-Hexane (Ph.Hex) 25 11.66 ± 0.66 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00 11.00 ± 1.15 8.66 ± 1.66 12.66 ± 0.33
50 17.66 ± 1.66 9.66 ± 0.33 7.66 ± 1.20 9.33 ± 0.66 17.33 ± 2.18 14.00 ± 1.00 17.00 ± 0.57
100 30.00 ± 0.57 15.00 ± 0.57 12.00 ± 0.57 14.00 ± 0.57 26.33 ± 0.88 20.33 ± 0.88 21.00 ± 0.00
Saponins (Ph.Sp) 25 6.60 ± 1.15 0.00 ± 0.00 11.00 ± 1.00 0.00 ± 0.00 10.66 ± 2.02 22.00 ± 0.57 15.00 ± 0.00
50 10.33 ± 1.45 00.00 ± 0.00 16.00 ± 0.57 0.00 ± 0.00 15.00 ± 0.57 26.33 ± 0.33 22. 33 ± 1.20
100 26.66 ± 1.20 7.33 ± 0.88 23.00 ± 0.00 8.66 ± 1.20 22.00 ± 1.52 30.66 ± 1.20 27.00 ± 0.57
Aqueous (Ph.Aq) 25 4.00 ± 0.00 0.00 ± 0.00 6.00 ± 1.15 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00 6.33 ± 0.66
50 13.00 ± 0.57 0.00 ± 0.00 10.33 ± 0.33 0.00 ± 0.00 7.00 ± 0.57 10.33 ± 0.66 10.88 ± 0.33
100 20.33 ± 0.33 10.33 ± 1.45 26.66 ± 1.20 11.33 ± 1.45 14.33 ± 2.02 15.60 ± 1.15 13.00 ± 0.66
Positive Control 25 19.33 ± 2.02 24.00 ± 0.57 23.33 ± 1.45 22.57 ± 0.57 16.66 v 0.88 20.33 ± 0.88 22.33 ± 0.66
50 25.00 ± 0.57 29.33 ± 0.66 29.66 ± 1.20 27.66 ± 0.88 23.33 ± 1.52 27.00 ± 0.57 29.00 ± 0.57
100 31.66 ± 1.45 35.33 ± 0.88 34.66 ± 0.88 31.00 ± 1.52 27.00 ± 1.15 34.66 ± 1.20 36.66 ± 1.20
  1. Results expressed as diameter of inhibitory zones (DIZ). Each value represent Mean ± SEM of three independent experimental results. Positive Control: Ceftriaxone