Overview
Lysozyme ( CAS 9001-63-2 ), also supplied as E1105 and commercially known as Delvozyme, is an antimicrobial enzyme derived from chicken egg white that inhibits bacterial cell wall synthesis.
It targets gram-positive bacteria, making it a functional preservation tool across food, pharmaceutical, and biotechnology applications. In food manufacturing, it is used to control late blowing defects.
This occurs in hard and semi-hard cheeses caused by Clostridium tyrobutyricum, replacing or reducing nitrate additions. Wine producers apply it to suppress lactic acid bacteria during fermentation.
This allows tighter control over malolactic conversion. Pharmaceutical formulators incorporate lysozyme into oral care products, lozenges, and mucosal preparations where bacterial inhibition is required.
In biotechnology, it is a standard reagent for bacterial cell lysis during protein extraction and plasmid isolation workflows. It is supplied as a white to off-white powder with activity in U/mg.
Food-grade material is available to FCC specifications; pharmaceutical-grade material is supplied to USP and BP standards. Bulk quantities are standard for industrial food buyers.
Smaller research-grade quantities are available for laboratory and biotech procurement. This ensures high purity and consistent enzymatic activity for sensitive pharmaceutical and industrial processes.
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Physical Properties
| Appearance | white to light beige solid |
| Color | white |
| Form | powder |
| Water Solubility | aqueous buffer: soluble water: soluble |
| pH | 3.5 (20°C in H2O, Aqueous solution) |
Safety & Handling
Danger GHS07 GHS08 Hazard Statements H317 May cause an allergic skin reaction H319 Causes serious eye irritation H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Precautionary Statements P233 Keep container tightly closed. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P280 Wear protective gloves/protective clothing/eye protection/face protection. P284 In case of inadequate ventilation wear respiratory protection. P321 Specific treatment (see … on this label). P403 Store in a well-ventilated place. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P342+P316 Get emergency medical help immediately. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 9001-63-2
- EC Number
- 235-747-3
- Mol. Weight
- 2235.6
- Category
- Amino Acids & Peptides