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Table 3 MICs (μg/mL) of the crude extracts and ciprofloxacin on the panel of tested bacteria

From: In vitro antibacterial and antibiotic-potentiation activities of the methanol extracts from Beilschmiedia acuta, Clausena anisata, Newbouldia laevis and Polyscias fulva against multidrug-resistant Gram-negative bacteria

Bacterial strains Studied samples and MIC (μg/mL)
Beilschmedia acuta Clausena anisata Newbouldia laevis Polyscias fulva   Reference drug
L B F L R L B L B R CIP
Escherichia coli            
 ATCC 10536 >256 64 >256 256 256 128 >256 >256 >256 >256 1
 AG 100A >256 128 >256 >256 >256 256 >256 >256 >256 >256 <0.5
 AG 100 >256 16 >256 >256 >256 >256 >256 >256 >256 >256 16
 AG 100ATet >256 256 >256 >256 >256 >256 >256 >256 >256 >256 64
 AG 102 >256 64 >256 >256 >256 >256 >256 >256 >256 >256 4
 MC 4100 256 128 256 256 256 128 >256 256 >256 256 16
 W 3110 256 <8 256 256 256 128 >256 128 >256 128 32
Enterobacter aerogenes            
 ATCC 13048 >256 16 >256 >256 >256 >256 >256 256 >256 >256 32
 CM 64 >256 16 >256 >256 >256 >256 >256 >256 >256 >256 64
 EA3 >256 64 >256 >256 >256 >256 >256 >256 >256 >256 16
 EA27 >256 64 >256 >256 >256 128 >256 256 >256 >256 4
 EA 294 >256 64 >256 >256 256 256 >256 >256 >256 >256 2
 EA 289 >256 256 256 >256 >256 >256 >256 >256 >256 >256 128
 EA 298 >256 256 256 >256 >256 >256 >256 >256 >256 >256 16
Klebsiella pneumoniae            
 ATCC11296 128 <8 256 256 256 128 >256 128 256 128 <0.5
 K2 >256 256 >256 >256 >256 >256 >256 >256 >256 >256 16
 KP55 >256 32 >256 >256 >256 >256 >256 >256 >256 >256 4
 KP63 128 64 128 256 >256 256 >256 128 >256 128 4
Providencia stuartii            
 ATCC29916 >256 128 >256 >256 >256 >256 >256 >256 >256 >256 32
 PS2636 256 64 256 256 128 128 >256 256 >256 >256 64
 PS299645 >256 256 >256 >256 >256 >256 >256 >256 >256 >256 32
 NAE16 >256 32 >256 >256 >256 >256 >256 >256 >256 >256 128
Enterobacter cloacae            
 ECCI69 >256 256 >256 >256 >256 >256 >256 >256 >256 >256 256
 BM67 >256 256 >256 >256 >256 >256 >256 >256 >256 >256 32
Pseudomonas aeruginosa            
 PA01 >256 64 256 >256 >256 >256 >256 >256 >256 >256 16
 PA124 >256 32 >256 >256 >256 >256 >256 >256 >256 >256 32
  1. The tested extracts were obtianed from the leaves (L), bark (B), roots (R) or fruits (F); CIP: ciprofloxacin]; MIC and MBC data with values up to 1024 μg/mL are provided as supporting information (Additional file 1: Table S1)