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Table 1 IC50 values of the crude and pre-purified peptide-rich extract from the root of Calliandra portoricensis

From: Evaluation of peptide-rich root extracts of Calliandria portoriscensis (Jacq.) Benth (Mimosaceae) for in vitro antimicrobial activity and brine shrimp lethality

Extract

MRSA22

MRSA6

SA

E. coli

MRSA

(μg/mL)

Methanol crude

8.30.00 ± 0.00

760.00 ± 0.58

13.27 ± 0.00

6.31 ± 0.00

0.73 ± 0.00

Peptide Extract

13.27 ± 0.00

145.00 ± 0.00

0.69 ± 0.33

30 ± 0.33

1.17.00 ± 0.00

Gentamycin 0.1%

28.00 ± 0.00

240.00 ± 0.00

22.00 ± 0.33

20 ± 0.33

20.00 ± 0.33

  1. S.A Staphylococcus aureus (ATCC 6538), MRSA Methicillin Resistant Staphylococcus aureus, E. coli Escherichia coli (ATCC 25922), Gent Gentamycin,
  2. SEM ± = Standard Error of the Mean