Figure 4From: Bacteriophage-encoded lytic enzymes control growth of contaminating Lactobacillus found in fuel ethanol fermentationsλSa2 and LysA exolytic activity in mock fermentations of corn fiber hydrolysates inoculated with L. fermentum and L. reuteri. a) Hydrolysate inoculated with 1x104 CFU/ml L. fermentum isolate BR0315–1 and treated with λSa2 endolysin at 250 ng/μl (red), 75 ng/μl (green), 25 ng/μl (purple) and LysA at 25 ng/μl (blue), PBS buffer control (black). b) Hydrolysate inoculated with 1x107 CFU/ml L. fermentum isolate BR0315-1 and treated with 25 ng/μl (purple) λSa2 endolysin, PBS buffer control (black). c) Hydrolysate inoculated with 1x104 CFU/ml L. reuteri strain B-14171 and treated with LysA at 760 ng/μl (orange), PBS buffer control (black). Data represent the average of four plate counts (n=4) ± SEM.Back to article page