Exploring the Potential of Novel Thermophilic Bacterial Strain for the Production of Bioemulsifiers Using the Hydrolysate of Sugarcane Bagasse

Microbial bioemulsifiers are biodegradable and non-toxic compounds that stabilize oil–water emulsions. However, their widespread application necessitates their cost-effective production. The use of agro-wastes in the production medium can substantially reduce costs. This study reports the production of bioemulsifier by thermophilic bacteria using an enzymatic hydrolysate of sugarcane bagasse. Crude cellulase from the bacterial strain was used to saccharify sugarcane bagasse, and the hydrolysate was used as a medium for bioemulsifier production. The results showed that crude cellulase preparation from Brevibacillus borstelensis UE10, Neobacillus sedimentimangrovi UE25, and B. borstelensis UE27 yielded 1.2, 1.5, and 1.6 g L−1 of reducing sugars in the hydrolysate of sugarcane bagasse. Upon cultivation of these strains in the hydrolysates, 25–35