Table 4: Minimal inhibitory concentration (μg/mL) of methanol extracts from the studied plants and ciprofloxacin.

Bacteria strainsPlants extractsa and MIC (μg/mL) in the absence and presence of PAβN (in bracket)
CAFPNFASB1ASB2BCFPNSCMFGKSGLSCPSACB1ACB2CIP

E. coli
 ATCC87391024512512<0.5
 ATCC1053610241024512512102464
 W31101024 (1024)512 (512)— (512)— (1024)512 (256)256 (128)— (1024)<0.5 (<0.5)
 MC410051210245122561024102432
 AG100A1024512 (128)— (512)— (1024)1024 (1024)256 (64)1024 (1024)16 (8)
 AG100Atet1024 (1024)1024 (512)256 (256)512 (512)1024 (1024)1024 (1024)32 (8)
 AG102512 (128)— (1024)— (1024)— (1024)— (1024)256 (64)512 (256)512 (512)32 (16)
 AG1005121024256256102410240.5
E. aerogenes
 ATCC130485125122561
 EA2941024512256102464
 CM6410245121024102425625651232
 EA351251225632
 EA298— (512)512 (128)256 (128)1 (<0.5)
 EA271024 (1024)512 (512)256 (256)256 (256)1024 (1024)1 (<0.5)
 EA2891024 (1024)— (1024)512 (512)512 (256)64 (32)
K. pneumoniae
 ATCC112961024 (1024)512 (256)— (1024)— (1024)512 (512)256 (128)— (512)<0.5 (<0.5)
 KP55512 (512)512 (256)512 (512)128 (128)1024 (1024)1024 (1024)— (1024)32 (4)
 KP6351251251232
 K21024512 (256)256 (128)1024 (1024)— (512)32 (8)
 K245125125122561024102432
P. aeruginosa
 PA011024 (1024)512 (512)512 (512)32 (4)
 PA12451210242561024128
P. stuartii
 ATCC299161024 (1024)1024 (1024)512 (512)256 (128)1024 (1024)>64 (16)
 NAE16102451210242562561024102464
 PS2636102412812864
 PS2996451024 (1024)1024 (1024)1024 (1024)1024 (1024)1024 (1024)256 (256)128 (128)1024 (1024)<0.5 (<0.5)
E. cloacae
 BM47256256256102464
 ECCI69102451210241024128128128
 BM6710245122562561024102432

(—) MIC greater than 1024 μg/mL; aExtract from CAF: Cola acuminata fruit; PNF: Picralima nitida fruits; ASB1: Allium sativum dry bulbs; ASB2: Allium sativum fresh bulbs; BCF: Buchholsia coriacea fruits; PNS: Picralima nitida seeds; CMF: Citrus médica fruits juice; GKS: Garcinia kola seeds; GLS: Garcinia lucida seeds; CPS: Carica papaya seeds; ACB1: Allium cepa fresh bulbs; ACB2: Allium cepa dry bulbs; CIP: ciprofloxacin.