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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