Table 3.

Evaluation of antimicrobial activity using metabolic extract of 12 Gram-negative isolates of gut microbiota of Lu. evansi against Gram negative y Gram positive bacteria.

metabolic extracts of bacteria isolates_Code	Diameter of growth or zone of inhibition
	Gram-negative bacteria			Gram-positive bacteria
	E. coli (ATCC 8739TM)	P. aeruginosa (ATCC 9027TM)	S. marcescens (Clinical isolated)	B. cereus (Enviromental)	E. faecalis (ATCC 51299TM)	S. aureus subsp aureus (ATCC 29213 TM)
E. cancerogenus_41	++	+++	++	++	++	++
P. putida_43	+	++	+	++	+	+
E. aerogenes_44	++	++	++	++	++	++
A. calcoaceticus_64	+	+++	+	++	+++	++
P. otitidis_70	++	++	++	++	++	+
E. cloacae_71	+	++	++	++	+	+++
O. anthropi_102	++	++	+	++	++	++
P. ananatis_140	++	++	+	++	++	++
A. gyllenbergii_154	++	++	++	++	++	++
E. hormaechei_157	++	+++	++	+++	+++	++
P. aeruginosa_173	++	++	+	++	+	++
L. soli_188	–	++	++	+	–	+
E. cloacae (C+)	11 ± 2	12 ± 1	12 ± 2	12 ± 2	12 ± 3	13 ± 2
Cloranfenicol (C+)	22 ± 2	8 ± 1	25 ± 2	23 ± 1	12 ± 2	23 ± 2
Metanol (C-)	0	0	0	0	0	0

Determination of diameter of growth (measured in mm) for the antimicrobial activity showing different degrees of inhibition for the twelve metabolic extracts. (-): Absence zone of inhibition, (+): zone of inhibition between 8–11 mm, (++): zone of inhibition between 12–15 mm, (+++): zone of inhibition ≥16 mm. C +: Positive control, C-: Negative control. The results represent the average of the triplicates.