Antibacterial activity and mechanism of green tea polysaccharide conjugates against Escherichia coli

The effect of green tea polysaccharide conjugate (gTPC) on the growth of E. coli was evaluated. gTPC has optimal antibacterial concentrations for E. coli DH5α (4.00 mg/mL) and 25,922 (1.00 mg/mL), with the antibacterial rates of 55.75 % and 50.65 % respectively. The results of scanning electron microscopy (SEM) and transmission electron microscope (TEM) indicated that gTPC-treated E. coli cells showed obvious morphological changes, part of the...