Fig. 2From: Surface display of p75, a Lactobacillus rhamnosus GG derived protein, on Bacillus subtilis spores and its antibacterial activity against Listeria monocytogenesDetermination of the peptidoglycan hydrolase (PGH) activity of CotG-p75 measured by the ninhydrin method. After treatment of peptidoglycan with different concentrations of CotG-p75 at 37 °C for 15 min, the absorbance of each sample was measured at 570 nm. All tests were performed in triplicate, and the data are presented as mean ± standard deviationBack to article page