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The antibacterial effect of different concentrations of CS–Ag xerogels bacteriostatic agent on colony growth of P. expansum, A. niger and B. cinerea. (0.62 wt% CS–Ag hydrogel, CS 1.7 mg·mL−1, Ag+ 4.5 mg·mL−1; 0.62 wt% CS–AgNPs sol, CS 1.7 mg·mL−1, AgNPs 4.5 mg·mL−1; CS 1.7 mg·mL−1; AgNO3 4.5 mg·mL−1; AgNPs 4.5 mg·mL−1).
