Study on the extracted substances of Houttuynia cordata leaves to inhibit E. coli and Salmonella spp. caused disease in chickens in Tra Vinh province

Abstract

Study on using the extracted substances of Houttuynia cordata leaves to inhibit E. coli and Salmonella spp. isolated from chickens was conducted at An Giang University. The studied result showed that the optimum extract conditions to obtain the extracted substances having
the best efficacy for inhibiting E. coli and Salmonella spp. bacteria included: Houttuynia cordata leaves were dried at 40oC, crushed into the fine powders and extracted in the mixed solvent (water and alcohol with a ratio of 10:90) at 70oC in a duration of 100 minutes