[Studies on the anti-enteropathogenic bacteria action of Herba Pogostemonis extracts]

The results of antimicrobial test in vitro of water-extracts and volatile oil of the Herba Pogostemonis shown that the water-extracts posses some inhibitory activity on all the tested bacteria, including Salmonella, Escherichia coli, Shigella flexneri and Staphylococcus aureus, while inhibition to S. aureus is more stronger than to Enterobacteriaceae (P < 0.01). In addition, the activity of anti-enteropathogens of water-extracts of the herb collected from Gaoyao county is more stronger than of the herb collected from Wuchuan county (P < 0.01).