foaming

Bacteria belonging to the genus Bacillus produce biogenic surface-active compounds which are a sustainable alternative to synthetic ones. The amount of the target products depends significantly on the conditions of microorganism cultivation, especially the components of the medium. In this study, we utilized Bacillus spp. strain that can grow in a glycerol-containing medium. We used the Monod model to determine the growth kinetics of the bacteria depending on the concentration of nutrients in the medium.

Waste rubber is recognized as a valuable materials resource and searching for new recycling methods is the main activity of many research institutions and companies. During last years only few scientific papers about foamed polymer compositions filled with ground tire rubber were published. The paper reviews the progress in compatibilization and foaming of polymeric compositions filled with a ground tire rubber.