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. 2022 Jun 28;12(28):18022–18038. doi: 10.1039/d2ra00231k

Antimicrobial activity of plain curcumin against pathogenic bacterial isolatesa.

Microorganism Mean of zone inhibition in mm (mean ± SD)
A B C D E
+ve Gram bacterial strains Staphylococcus aureus (MSSA) 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0
Staphylococcus aureus (MRSA) 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0
Enterococcus faecalis 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0
−ve Gram bacterial strains Pseudomonas aeruginosa 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0
Klebsiella pneumoniae 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0
Acinetobacter baumannii 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0
Proteus vulgaris 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0
Escherichia coli 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0
a

A: 10 μl ∼5 ppm; B: 20 μl ∼10 ppm; C: 30 μl ∼15 ppm; D: 40 μl ∼20 ppm; E: 50 μl ∼25 ppm of plain curcumin. (−): no inhibition.