Antimicrobial activities of Chinese Gallotannins against the common food spoilage and foodborne pathogens

The antimicrobial properties of Chinese Gallotannins were reviewed in this paper.The bacteria were the common food spoilage and foodborne pathogens.The minimal inhibitory concentration was measured through the two-fold agar dilution method, and the antimicrobial properties were screened by oxford cup.The modification on strain morphology of Escherichia coli was investigated by scanning electron microscope.Results showed that Chinese Gallotannins could inhibit every tested pathogens, especially against Escherichia coli with a minimal inhibitory concentration of 0.25mg/mL.Observation under scanning electron microscope revealed that the Escherichia coli depressed obviously.