Bacillus subtilis is a safe and highly effective probiotic strain that produces bioactive antimicrobial peptides. It offers broad-spectrum antibacterial, antiviral, and immunomodulatory properties, along with gut health benefits and environmental compatibility. Widely recognized as an ideal alternative to antibiotics, it is a key solution for feed, aquaculture, food safety, and pharmaceutical applications.
1. Core Advantages
- Bioactive Properties: Broad-spectrum activity against bacteria, viruses, and parasites; regulates immune function.
- Safety Profile: Low risk of inducing antimicrobial resistance; residue-free and environmentally friendly.
- Policy Alignment: Fully compliant with the global trend of antibiotic restriction, including China’s 2020 ban on growth-promoting antibiotics in feed, positioning it as a leading “anti-biotic alternative”.
2. Functional Characteristics
- Directly disrupts bacterial cell membranes, delivering potent bactericidal effects with low resistance development risk.
- Excellent thermal stability and specificity, suitable for various production and processing conditions.
- Acts as a source of small bioactive antimicrobial peptides for targeted pathogen inhibition.
3. Key Applications & Proven Effects
Veterinary Medicine & Feed (Antibiotic-Free Farming)
- Improves gut microbiota, promotes growth, and reduces diarrhea rates.
- Enhances daily weight gain and feed conversion efficiency; increases lean meat yield and laying hen egg production.
Aquaculture
- Controls pathogens such as Vibrio and Aeromonas hydrophila.
- Improves survival and growth rates of shrimp, tilapia, and large yellow croaker; reduces disease incidence.
Food Safety
- Serves as a natural preservative, tolerating pasteurization processes.
- Inhibits Staphylococcus aureus, E. coli, and Salmonella, extending shelf life of processed meats and seafood.
Human Pharmaceuticals
- Developed for treating drug-resistant infections (e.g., MRSA), bacteremia, and malaria, with formulations including injectable peptide solutions.
4. Product Features (Kexing)
- Composed of 37 amino acids with a molecular weight of 3.8 kDa.
- Optimized hybrid peptide CAD (derived from Cecropin A and Cecropin D fragments), designed for enhanced broad-spectrum antimicrobial activity.
