Metabolic Insights Into Microbially Induced Calcite Formation by Bacillaceae for Application in Bio-Based Construction Materials.

ABSTRACT: Microbially induced calcite precipitation (MICP) offers promising solutions for sustainable, low-cement infrastructure materials. While it is known how urea catabolism leads to biomineralisation, the non-ureolytic pathways of MICP are less clear. This limits the use of the latter in biotechnology, despite its clear benefit of avoiding toxic ammonia release. To address this knowledge gap, the present study explored the interdependence between carbon source utilisation and non-ureolytic MICP. We show that acetate can serve as the carbon source driving calcite formation in several environmental Bacillaceae isolates. This effect was particularly clear in a Solibacillus silvestris strain, which could precipitate almost all provided calcium when provided with a 2:1 acetate-to-calcium molar ratio

SUBMITTER: Seidel M 

PROVIDER: S-EPMC11965779 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature