Bacillus macerans is a facultative anaerobic bacterium known for its ability to degrade complex carbohydrates such as cellulose, hemicellulose, and starch. This activity makes it highly effective in organic decomposition processes, such as composting and agricultural residue management, contributing to improved soil health and nutrient cycling.

In industrial applications, B. macerans produces valuable enzymes like cellulases and amylases, which are used in biofuel production, paper processing, and textile industries. Its role in breaking down organic polymers also supports bioremediation efforts, helping manage agricultural and industrial waste sustainably..