Table 1.

The inhibition zones diameters (IZDs) of the biosynthesized selenium nanoparticles (BioSeNPs) with minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) levels against certain Gram positive (G+) and Gram negative (G-) pathogenic bacteria.

Bacteria		SeNPs (μg ml−1) / IZDs (mm)						MIC	MBC
		0.5	1	2	3	4	5
G+	Listeria monocytogenes	13bc	16b	18bc	20c	22c	25c	0.35b	0.65b
	Bacillus cereus	14b	17ab	19b	21b	24b	27b	0.30bc	0.55bc
	Staphylococcus aureus	16a	18a	21a	25a	27a	30a	0.25c	0.45c
G-	Klebsiella pneumonia	12c	14c	17c	20c	22c	24d	0.35b	0.65b
	Escherichia coli	10d	13 cd	15d	18d	20d	22e	0.40ab	0.75ab
	Aeromonas hydrophilia	9e	11d	14e	16e	18e	21f	0.45a	0.85a

Inhibition zones diameters (IZDs). Means in the same column with lowercase different letters are significantly different at p ≤ 0.05.