In vitro antimicrobial activity of Trapa natans L. fruit rind extracted in different solvents

Trapa natans L. fruit rind was extracted in different solvents with increasing polarity; 1,4-dioxan, chloroform, acetone,  imethylformamide, ethanol and water. The extractive yield ranged from 0.62 –12.62%. The antibacterial activity of all the extracts was determined by agar disc diffusion method. Maximum antibacterial activity was observed against Gram negative bacteria. The resistant Gram negative strains were C. fruendii, E. aerogenes, E....