Weiri (Shandong) Biotech Co., Ltd.（伟日（山东）生物科技有限公司）is a high-tech enterprise engaged in the research, production, and global distribution of natural food preservatives. Based in Yucheng, Dezhou City, Shandong Province, China, Weiri Biotech is recognized for its specialized portfolio of bio-fermented antimicrobial agents, with a strategic focus on food safety, clean-label preservation, and shelf-life extension.
As part of China's new generation of biotechnology innovators, Weiri has positioned itself as a competitive player in the global market for natural food antimicrobials. Its products are widely used in dairy, baked goods, beverages, meat processing, and ready-to-eat food industries.
Product and Service Offerings
Weiri Biotech’s product portfolio is centered around three high-performance natural preservatives:
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Nisin:
- A polycyclic antibacterial peptide effective against Gram-positive bacteria.
- Widely used in dairy products, canned foods, and meat processing.
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Natamycin:
- A natural antifungal compound used to inhibit yeast and mold.
- Applied in cheese, bakery, and juice preservation.
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ε-Polylysine Hydrochloride (ε-PL HCL):
- A naturally fermented cationic polypeptide with broad-spectrum antibacterial properties.
- Used in rice products, beverages, soy products, and cooked meats.
All products are manufactured through microbial fermentation processes and conform to international food additive standards. They are approved for use in multiple jurisdictions, including the EU, U.S., and Japan.
Specialization and Core USP
Weiri’s core specialization lies in precision fermentation and purification of peptide-based antimicrobials. Unlike many conventional preservative manufacturers, Weiri focuses exclusively on bio-derived, clean-label antimicrobials, meeting the rising demand for natural food safety solutions.
Key differentiators include:
- High-purity grades of nisin (≥ 900 IU/mg) and natamycin with low off-flavor profiles.
- Customized particle size and solubility options for different application systems (e.g., emulsions, sprays, coatings).
- GMP-compliant production infrastructure ensuring pharmaceutical-grade consistency for food applications.
Financials and Export Records
Weiri Biotech has established an expanding footprint in the international ingredient market:
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According to global trade intelligence platforms:
- Active export destinations include India, Turkey, Indonesia, Brazil, and South Korea.
- Typical export batch sizes for nisin range from 100 kg to 1,000 kg, indicating bulk B2B sales.
- ε-Polylysine exports are growing in the Japanese and Southeast Asian markets, particularly in the ready-meal and rice noodle sectors.
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Products are listed with multiple international sourcing platforms, including Made-in-China, Alibaba, and specialized food additive directories.
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Estimated annual capacity:
- Nisin: Over 30 metric tons
- Natamycin: Over 20 metric tons
- ε-Polylysine HCL: Over 15 metric tons
These figures reflect the company’s scale and its readiness to support medium-to-large-scale food processors globally.
Target Market
Weiri Biotech serves customers in:
- Dairy processing and cheese manufacturing
- Baked goods and packaged bread
- Meat and poultry product preservation
- Ready-to-eat and convenience food brands
- Beverage and fermented product companies
- Food additive distributors and contract manufacturers
The company’s natural preservatives are particularly suitable for manufacturers seeking synthetic-free, label-friendly, and globally accepted preservation solutions.
Capabilities
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Fermentation Technology:
- Industrial bioreactors for microbial production of nisin, natamycin, and ε-PL
- Optimized downstream purification and drying systems
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Application Testing:
- R&D center for formulation testing in various food matrices
- Application guides and technical support for customers
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Packaging and Export:
- Vacuum-sealed, multi-layer packaging for product stability
- Export-ready documentation: CoA, SDS, MSDS, Halal and Kosher certifications
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OEM/ODM Services:
- Custom formulation and labeling for international partners
Certifications and Compliance
Weiri Biotech adheres to national and international standards for food ingredient manufacturing. Certifications and compliance practices include:
- ISO 22000:2018 Food Safety Management System
- ISO 9001:2015 Quality Management
- Halal and Kosher Certifications
- HACCP Implementation
- Compliance with:
- GB2760 (China National Food Additive Standards)
- FCC and EU E-number system
- FAO/WHO Joint Expert Committee specifications
These ensure regulatory access to markets in North America, EU, ASEAN, and the Middle East.
Customer Testimonials
While direct testimonials are not publicly listed, supplier reviews and return-order frequency on international trade portals show:
- Consistent product performance and batch reliability
- Competitive pricing compared to multinational counterparts
- Strong pre-sale and after-sale technical support, including formulation advice
Customers frequently cite the company’s nimble production cycles and product purity as reasons for repeat procurement.
Major Achievements
- Exported to over 30 countries within the first 5 years of operations
- Developed proprietary fermentation strains with enhanced antimicrobial peptide yield
- Recognized as a “High-Tech Enterprise” in Shandong Province
- Participated in industry standard-setting forums for natural antimicrobial regulation
- Successfully integrated end-to-end traceability systems in production for global compliance
Weiri (Shandong) Biotech Co., Ltd. is rapidly gaining prominence in the global market for natural preservatives by combining biotechnology expertise with clean-label food innovation. As the demand for safe, natural, and effective antimicrobial agents grows, Weiri stands out as a trusted, agile, and quality-driven supplier to food brands worldwide.