Transcriptomic analysis of peptide production from solid‐state fermented soybean meal by Bacillus subtilis SBM_1

These results indicate that during SSF, B. subtilis SBM_1 can synthesize peptides and secrete extracellular proteases to hydrolyze soybean proteins for peptide production. The synthesized peptides are subsequently exported via the ABC transporter pathway, collectively contributing to the accumulation of peptides in the fermentation system. © 2026 Society of Chemical Industry.