Bacterial community dynamics and associated genes in hydrocarbon contaminated soil during bioremediation using brewery spent grain.

ABSTRACT: Brewery spent grain (BSG) has previously been exploited in bioremediation. However, detailed knowledge of the associated bacterial community dynamics and changes in relevant metabolites and genes over time is limited. This study investigated the bioremediation of diesel contaminated soil amended with BSG. We observed complete degradation of three total petroleum hydrocarbon (TPH C10-C28) fractions in amended treatments as compared to one fraction in the unamended, natural attenuation treatments. The biodegradation rate constant (k) was higher in amended treatments (0.1021k) than in unamended (0.059k), and bacterial colony forming units increased significantly in amended treatments. The degradation compounds observed fitted into the elucidated diesel degradation pathway

SUBMITTER: Nnadi MO 

PROVIDER: S-EPMC10323799 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature