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Protin Biotech Logo Protin Biotech

Natural Solutions for Meat & Dairy Processing

Premium Transglutaminase, Nisin, and Natamycin from Shanghai Protin Biotech — 21 years of enzyme innovation and quality assurance.

Protin Biotech Products
Smart Factory

About Shanghai Protin Biotech

Shanghai Protin Biotech Co., Ltd. was established in 2017 as the overseas sales subsidiary of Kinry Biotech (Jinan) Co., Ltd., specializing in food enzymes and natural food preservatives. We are dedicated to delivering world-advanced enzyme preparations and preservation solutions for the global food industry.

Through exclusive cooperation with our manufacturing partner Kinry Biotech, we export high-performance products including the Biobond® series of enzyme preparations, Kingard® series preservatives, and Kinzyme® liquid enzymes — trusted by food processors worldwide.

21-Year Production Experience
Global Liquid TG Patent
High Enzyme Effectiveness
FSSC 22000 & ISO Certified
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Our Featured Products

Discover our premium range of food enzymes and natural preservatives engineered for superior performance in meat, dairy, and processed foods.

Biobond® Transglutaminase

Biobond® Transglutaminase (TG)

A powerful enzyme that enhances protein cross-linking in meat and dairy products, improving texture, elasticity, and yield.

  • High activity & stability
  • Improves water retention
  • Enhances product firmness
  • Reduces cooking loss
Kinzyme® Liquid Transglutaminase

Kinzyme® Liquid Transglutaminase

Liquid-form TG enzyme with patented formulation for uniform dispersion and consistent performance in industrial applications.

  • Worldwide patent protected
  • Easy to dose and mix
  • Stable at refrigerated conditions
  • Ideal for automated systems
Nisin (Kingard® 700)

Nisin (Kingard® 700)

Natural antimicrobial peptide effective against Gram-positive bacteria, especially Listeria and Clostridium in dairy and canned foods.

  • Powder form with 700 IU/mg
  • Heat-stable and pH-tolerant
  • Extends shelf life naturally
  • Halal & Kosher certified
Natamycin (Kingard® 600)

Natamycin (Kingard® 600)

Natural antifungal agent used to prevent mold and yeast growth in cheese, sausages, and fermented products.

  • 600 ppm concentration
  • No impact on flavor or texture
  • Effective at low dosages
  • Approved globally for food use
Biobond® TG Powder

Biobond® TG Powder

High-purity transglutaminase in powder form for dry blending applications in restructured meats and plant-based proteins.

  • Excellent flowability
  • Long shelf life at ambient
  • Compatible with spice blends
  • Non-GMO and allergen-free
Kinzyme® TG Liquid 5000

Kinzyme® TG Liquid 5000

Ultra-concentrated liquid transglutaminase for high-efficiency processing with minimal dosage requirements.

  • 5000 U/mL activity
  • Reduced transport cost
  • Precise dosing control
  • Compatible with brine systems
Kingard® Nisin 1000

Kingard® Nisin 1000

High-concentration nisin preparation for demanding preservation needs in processed meats and dairy.

  • 1000 IU/mg potency
  • Enhanced microbial control
  • Reduces need for chemical preservatives
  • Supports clean label claims
Kingard® Natamycin 800

Kingard® Natamycin 800

Premium-grade natamycin with enhanced dispersion for surface treatment and internal protection.

  • 800 ppm concentration
  • Uniform particle size
  • Excellent solubility in brines
  • Effective against spoilage fungi

Why Choose Protin Biotech?

We combine cutting-edge biotechnology with rigorous quality control to deliver reliable, effective, and safe food solutions.

Advanced Enzyme Technology

Patented liquid TG formulation ensures consistent performance and ease of use in industrial food processing.

Global Certifications

FSSC 22000, ISO 9001, ISO 22000, Halal, and Kosher certified — meeting international food safety standards.

Worldwide Distribution

Trusted by food manufacturers across Asia, Europe, the Americas, and the Middle East.

Smart Manufacturing

State-of-the-art facility with automated control systems ensuring batch-to-batch consistency and traceability.

Our Certifications

FSSC 22000 ISO 22000 ISO 9001 Halal Kosher

Our products are manufactured under strict quality management systems, ensuring safety, consistency, and compliance with global regulations.

Get in Touch

Contact our team for product inquiries, technical support, or samples.

Contact Information

  • +86-21-62848124
  • 8618321400961
  • [email protected]
  • Room 1006, Building 57, No. 260 Maoyuan Road, Fengxian District, Shanghai, 201400, China

Visit Our Website

For detailed product specifications, technical documents, and company updates.

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