Lysozyme for antimicrobial control in food systems
For processors, formulators and resellers: hen egg white lysozyme to hold back Gram-positive spoilage bacteria in cheese, wine, meat, seafood and active packaging. Request a quote with the product, quantity and destination.
Lysozyme (EC 3.2.1.17) is an antibacterial enzyme from hen egg white (HEW) that breaks down the cell walls of Gram-positive bacteria. It hydrolyses the β-(1,4)-glycosidic bonds in peptidoglycan, weakening the wall until the cell lyses.
For a food business, that definition translates into a practical job: fewer spoiled batches and a longer, more predictable shelf life without harsh chemical preservatives. In dairy, it is a trusted tool for preventing late blowing in semi-hard and hard cheeses, where Clostridium spoils whole wheels during ripening. In wineries, it offers an alternative to sulfites for controlling malolactic fermentation. Processed meat and seafood processors use it within brines, blends, or surface dips to extend microbial stability. It is also incorporated into edible coatings and active packaging films to protect chilled, ready-to-eat foods.
Technically, HEW lysozyme delivers activity between 20,000 and 100,000 U/mg, functions best at pH 6.0–9.0 and 37–50 °C, and is supplied as a white crystalline powder with a 36‑month shelf life when stored sealed, cool, and dry. Pack sizes from 1 kg to 25 kg and multiple food-industry certifications, including E1105 (EU approved), USP/FCC, ISO 9001, HALAL, and KOSHER, make it suitable for regulated production in many markets.
For procurement teams and resellers, the next step is matching these specifications to your process conditions, target organisms and market rules, then confirming the dose in a pilot trial. To get a quote, send the product and activity grade, the quantity, the destination and the application.
Cheese preservation and late-blowing control
In Gouda, Edam, and other hard cheeses, lysozyme helps suppress Clostridium tyrobutyricum and reduce late blowing defects. Typical use levels depend on milk composition, processing conditions, and target microbiological load, but lysozyme is usually dosed at low ppm levels in the vat or milk stream. Confirm the dose and addition point in a pilot vat before scale-up.
Wine malolactic control
For wineries seeking a non-sulfite antimicrobial aid, lysozyme can limit lactic acid bacteria during fermentation and stabilization. It is typically introduced after evaluating pH, temperature, and desired microbial pressure. Because lysozyme is a protein-based processing aid, technical teams should verify compliance with local rules and trial the dosage under cellar conditions before scale-up.
Processed meat and sausage protection
Lysozyme can support shelf-life extension in cooked meats, sausages, and related prepared products by inhibiting Gram-positive spoilage organisms. It is most effective when integrated into a broader hygiene and cold-chain strategy. Depending on formulation and salt content, processors may apply it in brines, blends, or surface treatments to improve microbial stability.
Active packaging and coated surfaces
When incorporated into edible films or coating systems, lysozyme adds antimicrobial function directly at the product surface. This is useful for cheese blocks, sliced meat, and other chilled foods where surface contamination drives spoilage. Packaging developers usually evaluate release profile, activity retention, and compatibility with other film-formers before selecting a dosage range.
| Parameter | Value |
| Source organism | Hen egg white (HEW) |
| Activity range | 20,000 – 100,000 U/mg (Micrococcus lysodeikticus assay) |
| Optimal pH | 6.0 – 9.0 |
| Optimal temperature | 37 °C – 50 °C |
| Appearance / shelf life | White crystalline powder; 36 months sealed, cool, dry |
Frequently Asked Questions
What is lysozyme, and why is it used in B2B processing?
Lysozyme is an antibacterial enzyme classified under EC 3.2.1.17 that cleaves specific bonds in bacterial peptidoglycan, making it effective against many Gram-positive organisms. In B2B food processing, it offers targeted microbial control without changing product flavor or texture when correctly applied. Procurement teams often choose HEW lysozyme for cheese, wine, meat, seafood, and packaging projects where a validated food-grade antimicrobial is needed. Its value lies in low-dose efficacy, well-documented activity, and established regulatory acceptance.
Where is lysozyme found naturally?
Lysozyme is found in several biological sources, but the most common commercial source for industrial use is hen egg white. It can also be detected in human tears, saliva, and milk, but these are not viable for large-scale supply. HEW lysozyme is preferred commercially for its consistent activity, scalability, and clear documentation for food and technical applications.
What are lysozymes used for in cheese production?
In cheese, lysozyme’s main role is preventing late blowing caused by Clostridium spores, especially in semi-hard and hard varieties. It helps maintain quality during ripening and storage by reducing gas-forming spoilage. Dosage depends on milk quality, microbial load, and process design, but the enzyme is generally applied at low concentrations. It works best alongside strong hygiene, temperature control, and proper fermentation management.
What dosage and process conditions are typically used?
Dosage is application-specific, but lysozyme is most often used at low ppm levels in food systems rather than high inclusion rates. Performance is generally optimal in the pH 6.0–9.0 range, with best activity between 37 °C and 50 °C. In dairy, wine, meat, or seafood processing, technical teams should validate dose, contact time, and matrix compatibility through pilot trials before commercial rollout.
Is HEW lysozyme suitable for regulated production?
Yes. Hen egg white lysozyme is widely used in regulated food manufacturing, subject to local labeling and processing-aid rules. Key checks include origin, activity specification, microbiological quality, certifications, and intended market approval. This product is supplied with E1105 (EU approved), USP/FCC, ISO 9001, HALAL, and KOSHER certifications, in packs from 1 kg upward, and should be confirmed for compliance in the destination market.
What do we need to send to get a lysozyme quote?
The activity grade you need (within 20,000–100,000 U/mg, Micrococcus lysodeikticus assay), the pack size (1 kg, 5 kg or 25 kg), the quantity per order or per year, the destination country, the application (cheese, wine, meat, seafood, oral care or packaging) and the documents your market requires. Processors, formulators and resellers all quote the same way.
Request HEW lysozyme supply details
Send the product (activity grade), quantity and destination, plus your application and the documents your market requires. We reply within 24 hours with sample availability and a quote.
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