Agroindustrial Waste: Importance and Applications in the Production of Microbial Enzymes The growing environmental concerns have intensified interest in renewable sources, promoting the use of agro-industrial residues as alternative substrates for the production of materials, chemicals, and bioenergy. Among these residues, cheese whey stands out due to its high content of lactose, proteins, and minerals, and is widely used in microbial fermentations to produce industrially relevant compounds such as enzymes. Likewise, lignocellulosic wastes like sugarcane bagasse have proven effective as carbon sources for cellulase production, while corn steep liquor has been employed as an inexpensive nitrogen source. Studies involving Bacillus licheniformis SMIA-2 have demonstrated its potential to produce enzymes such as proteases, avicelase, and carboxymethyl cellulase (CMCase) using agro-industrial residues, including passion fruit peel flour, cheese whey, and sugarcane bagasse supplemented ...