Description

Lysozyme Chloride Crystalline (Egg White) is a purified, high-activity enzyme derived from egg white, known for its muramidase activity that hydrolyzes bacterial cell walls. This product is essential for applications requiring a natural, effective antimicrobial agent and protein stabilizer. It is a critical raw material for manufacturers in the pharmaceutical, food & beverage, and biotechnology industries seeking high-purity, reliable enzymatic ingredients.

Application

• Pharmaceutical Manufacturing: Used as an active pharmaceutical ingredient (API) in anti-inflammatory and antibacterial preparations, including throat lozenges and nasal sprays.
• Food & Beverage Preservation: Acts as a natural preservative (E1105) in cheese, wine, beer, and other perishable foods to inhibit spoilage bacteria like *Listeria*.
• Biotechnology & Research: Employed in cell lysis procedures for DNA/RNA extraction, protein purification, and as a model enzyme in biochemical studies.
• Dairy Processing: Specifically used to prevent late blowing in cheeses like Gouda and Edam by controlling *Clostridium tyrobutyricum*.
• Cosmetic & Personal Care: Incorporated into oral care products (toothpaste, mouthwash) and skincare formulations for its antibacterial and anti-inflammatory properties.
• Diagnostic Reagents: Serves as a component in diagnostic kits and microbiological culture media.

Basic Information

Product Name	Lysozyme Chloride Crystalline (Egg White)
CAS No.	52219-07-5
Molecular Formula	C719H1133N193O224S10 • xHCl
Molecular Weight	Approx. 14,300 Da (monomer)
Synonyms	Muramidase; N-Acetylmuramide Glycanhydrolase; 1,4-β-N-Acetylmuramidase; Globulin G; Egg White Lysozyme Hydrochloride; E 1105; Lysozyme HCl; CAS 12650-88-3 (for base protein)
EINECS	257-747-1

Quality Control

Our Lysozyme Chloride Crystalline is produced and tested to meet stringent quality standards suitable for food and pharmaceutical applications. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) verifying key parameters such as enzymatic activity, purity, and microbiological quality. We adhere to relevant guidelines including FCC (Food Chemicals Codex) and can supply material compliant with customer-specific pharmacopeial requirements (e.g., USP, EP) upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C for long-term stability. This material is hygroscopic (moisture-sensitive); ensure the container is kept sealed in a low-humidity environment to prevent absorption of water and loss of activity.

Specification

Item	Specification
Appearance	White or almost white crystalline powder
Identification (IR)	Conforms to standard
Assay (Enzymatic Activity)	≥ 20,000 U/mg (dry basis)
Protein Content (Biuret)	≥ 95.0%
Loss on Drying	≤ 6.0%
pH (1% Solution)	3.5 - 5.5
Heavy Metals (as Pb)	≤ 10 ppm
Total Plate Count	≤ 1,000 cfu/g
Yeast & Molds	≤ 100 cfu/g
E. coli	Negative
Salmonella	Negative

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.