Table 1. The effect of antibacterial activity of exopolysaccharide isolated from Tibetan mushroom culture against foodborne pathogenic bacteria by agar well diffusion assay

Gram	Foodborne pathogenic bacteria tested in this study	Antibacterial activity of exopolysaccharide (Inhibition zone, mm)
Negative	Escherichia coli O157:H7 ATCC 42894	–1)
	Escherichia coli O55	–
Positive	Listeria monocytogenes ATCC 19114	12
	Staphylococcus aureus 305	15

(–) means no clear zone.