Influence of growth media components on the antibacterial effect of silver ions on Bacillus subtilis in a liquid growth medium.

ABSTRACT: Numerous studies have investigated the antibacterial effect of both silver ions and silver nanomaterials on a large diversity of environmentally and clinically relevant bacteria. However, contradictory results are reported in which inhibition concentrations were varying by a 10-fold. This study investigated whether this variance in results could be attributed to the difference in experimental conditions, especially the microbial growth medium. B. subtilis was exposed to 500 µg L^-1 Ag⁺ in liquid growth media with different concentrations of some commonly used media components: tryptone, yeast extract, Cl^-, and S^2-. The toxic effect was investigated by means of three complementary analysis techniques: (i) analyzing the growth curves obtained by opt

SUBMITTER: De Leersnyder I 

PROVIDER: S-EPMC6008294 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature