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Table 4 Antibacterial screening of P. jacquemontiana extract against gram positive and gram negative bacteria

From: Phytochemical investigation and antimicrobial appraisal of Parrotiopsis jacquemontiana (Decne) Rehder

  Extract/Fractions (1000 μg/disc)
Isolate (s) PJM PJH PJC PJE PJB PJA
Staphylococcus aureus
 MDR (6301) 24.16 ± 1.25 27.66 ± 0.28 25.16 ± 1.04 28 ± 1.32 24.16 ± 1.04
 MDR (3884) 31.16 ± 2.02 29 ± 1.0 24.83 ± 0.28 26.5 ± 0.5 28.66 ± 0.28
 MRSA (12861) 22.5 ± 1.32 23.16 ± 1.25 25 ± 0.5 26 ± 1.0 25.33 ± 1.04
 MDR (9861) 25.16 ± 0.04 22.5 ± 0.5 26.33 ± 1.25 26.5 ± 0.86 28.83 ± 0.76
 (5764) 29 ± 1.0 26 ± 1.0 27.33 ± 0.57 27 ± 1,0 23.5 ± 0.5
 (31414) 26 ± 1.0 32 ± 0.86 30.33 ± 1.44 22.5 ± 0.5 25 ± 1.0
Staphylococcus lugdenesis
 MDR (6197) 35.5 ± 1.32 28.5 ± 0.5 24.83 ± 1.04 26.5 ± 0.5 26.83 ± 0.28
 (4338) 24 ± 1.0 18 ± 1.0 - 25.66 ± .57 20.5 ± 0.86
Escherichia coli
 MDR (52331) 27.83 ± 0.76 28.83 ± 0.28 24.83 ± 1.25 24.33 ± 0.57 31.16 ± 0.76
 (22244) 28 ± 0.5 13.16 ± 0.28 14 ± 1.0 27.83 ± 0.76 23.5 ± 0.86
“a” 23.5 ± 0.5 - - 24.16 ± 0.76 18.33 ± 1.04
“b” 24.5 ± 0.5 - - 25.66 ± 0.28 19 ± 1.0
Klebsiella pneumoniae
 MDR (82431) 30 ± 1.0 26 ± 2.0 26.66 ± 0.28 25.16 ± 0.28 33.33 ± 0.57
ESBL MDR (87005) 35.33 ± 0.57 34 ± 1.0 29.5 ± 0.5 26 ± 1.0 28.16 ± 0.76
 (34529) 27.83 ± 0.28 17.16 ± 1.04 18 ± 1.0 21.83 ± 1.04 20 ± 1.0
 (35967) 22.16 ± 0.76 - - 20.83 ± 1.04 19 ± 0.86
“a” 26 ± 2.0 - - 23.83 ± 0.57 19 ± 0.5
Pseudomonas aeruginosa
 (27853) 25.16 ± 0.76 21.5 ± 0.5 14 ± 2.0 19.66 ± 1.52 18.33 ± 0.57
Coagulase negative staphylococci
 (12731) 28 ± 2.0 27.33 ± 0.57 22 ± 1.0 25.16 ± 1.04 26.16 ± 0.76
  1. Zone of inhibition (mm) are expressed as mean ± SD (n = 3). 8-13 mm: low inhibition; 14-19 mm: moderate inhibition; ≥ 20 mm: high inhibition. -: no zone of inhibition; NT not tested, PJM methanol extract of P. jacquemontiana leaves, PJH: n-hexane fraction of PJM, PJC chloroform fraction of PJM, PJE ethyl acetate fraction of PJM, PJB n-butanol fraction of PJM, PJA residual aqueous fraction of PJM
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