Antibiotic activity of different solvent extracts of the marine gastropod Thais bufo again

Antibiotic activity of different solvent extracts of

the marine gastropod Thais bufo against Staphylococcus aureus and Streptococcus

pyogenes

Ravi Raja[1];Arularasan Sabapathi[1];Vishwanathan Sankar[1];

【期刊名称】《海岸生命医学杂志(英文版)》 【年(卷),期】2017(005)001

【摘要】Objective:To evaluate the antimicrobial activity of different solvent extracts of the species Thais bufo against theStreptococcus pyogenes andStaphylococcus aureus.
Methods:Different types of solvents were used such as acetone, benzene, butanol, chloroform, ethanol, ethyl acetate, hexane, methanol, toluene and distilled water for extraction, based on the polarity basis for the purpose of minimizing the process and error in identification and characterization of the active compound.
Results: Regarding the percentage of yield, aqueous extract yielded the highest percentage, following that methanolic extract and other extracts in the order of ethanol, hexane, chloroform, ethyl acetate, butanol, benzene, acetone and toluene. In the perception of antibiotic activity, ethyl acetate and methanol showed better activity against both the species. Through the results, it is clear that the methanolic extract have mild antimicrobial activity. The antimicrobial activity in the form of zone of inhibition was below the value of 7.5 mm.