The food industry on a global scale is facing increasing challenges to maintain the freshness, safety, and hygiene of products while maintaining consumer preferences for no chemicals or preservatives. While synthetic preservatives have been helpful in this regard, growing concerns about people's health and the environment has made them highly question-able. As a biotechnology-based and sustainable company, we focus on ε-Polyline Hydrochloride and biopreservation which happens to blend efficacy, safety, and ecological sustainability. ε-PLHCl is a compound made through the microbial fermentation process and is approved by various authoritative bodies across the globe enabling it to be widely used for a pickle's preservation.

Fig 1. PLGA/ε-polylysine nanofibers and their application for pork preservation (Chen M.M., 2023)
Our company specializes in providing complete encapsulated solutions for the ε-Polylysine Hydrochloride within the food industry for those striving forward towards contemporary green methods of food preservation. These services include product provision, bespoke formulation, technical aid, and assistance in regulatory compliance. With the greatly sophisticated fermentation and purification techniques, our products guarantee excel-ε-PLHCl (≥95%) purity and can be marketed on a laboratory scale or even advanced levels.
Technical Principles
ε-Polylysine Hydrochloride is a natural homo-polymer of L-lysine residues (25–35 units) and is produced by the fermentation of streptomyces diastatochromogenes. The process includes:
- Strain Optimization: Proprietary high-yield strains developed through decades of research achieve fermentation titers exceeding 35 g/L in 10 m³ bioreactors.
- Fermentation & Extraction: Ion-exchange resin methods of adsorption, desorption, and purification of fermentation broth segments yield ε-PLHCl with greater than 60% recovery.
- Quality Control: Consistency with food-grade benchmark is validated irrationally with HPLC.
Features of Technology
- Broad-Spectrum Antimicrobial Activity: Expediently destroys Gram-positive/negative bacteria, yeast, molds, and even certain heat-resistant spores (including Bacillus spp.) and surpasses nisin's preservative abilities in neutral to mildly acidic conditions.
- Thermal Stability: Functions effectively after high-temperature processing (120°C for 20 minutes) which is advantageous for heat-treated products.
- Water Solubility & Low Dosage: Can conveniently be introduced to water systems at very low concentration ranges of 10 - 500 μg/g, translating to lower expenses while increasing preservative longevity.
- Synergistic Formulations: Performance improves significantly in combination with ethanol, organic acids (acetic acid for example), or glycine, providing flexible applications in myriad food matrices.
Technical Categories
ε-PLHCl-based preservatives are tailored to specific applications:
- Liquid Formulations: For egg products; alcohol-based 30-70% ethanol. For rice and salads; blended acetic acid 0.5-5%.
- Powdered Blends: With glycine 0.01 - 10% for dairy, or with glycerol esters for protein-rich foods.
- Sprayable Solutions: Treating the surface of meats, baked goods, and ready-to-eat meals.
Application Areas
- Staple Foods: Rice, noodles, and baked goods (inhibits Bacillus cereus at 0.4–0.6% dosage).
- Protein-Rich Products: Meat, poultry, and dairy (prevents spoilage without altering flavor).
- Beverages & Condiments: Extends shelf life of juices, sauces, and fermented products.
- Convenience Foods: Ready meals, salads, and chilled desserts.
Environmental Benefits
- Reduced Chemical Reliance: Displaces synthetic preservatives like sorbates and benzoates, aligning with clean-label trends.
- Biodegradability: Fully decomposes into natural amino acids, minimizing ecological footprint
- Energy Efficiency: Low-temperature storage requirements and compatibility with existing production workflows lower carbon emissions.
Our Services
We offer seamless microbial preservation integration into your production chain with our comprehensive portfolio:
- Customized Product Supply: We provide ε-PLHCl in flexible packaging (0.5 kg bottles, 10–20 kg drums) or client-specific configurations, ensuring rapid delivery within 1-2 days post-order.
- Formulation Development: Our R&D team designs synergistic blends (e.g., ε-PLHCl + organic acids) to optimize preservation efficacy and cost-efficiency for your product line.
- Technical Support: Guidance on incorporating ε-PLHCl into existing manufacturing protocols, lab-scale trials to validate preservation outcomes under real-world conditions.
- Free Samples & Trials: We offer complimentary samples to demonstrate performance in your specific applications.
Company Service Advantages
- Proven Expertise: Over 15 years of specialization in bio-preservatives, supported by patents in strain engineering and extraction technologies.
- Scalable Production: State-of-the-art facilities capable of 30+ ton annual output, with stringent ISO-compliant quality controls.
- Global Reach: Established export networks to Europe, North America, and Asia, ensuring reliable supply chains.
- Sustainability Commitment: Zero-waste fermentation processes and eco-friendly packaging options.
Contact Us
As a pioneer in bio-based food preservation, our ε-Polylysine Hydrochloride solutions empower manufacturers to meet evolving consumer and regulatory demands. By combining scientific innovation with sustainable practices, we deliver preservatives that are not only effective but also ethically aligned with global environmental goals. Partner with us to redefine food safety and quality in the green economy era.
How to Place an Order
Reference
- Chen M.M., Li L.L., et al. "Preparation of PLGA/ε-polylysine nanofibers and their application for pork preservation" Food Packaging and Shelf Life 2023, 35:101031.
Our products and services are for research use only and cannot be used for any clinical purposes.