Description

Lysozyme Hydrochloride is a purified enzyme preparation derived from hen egg white, acting as a potent muramidase that hydrolyzes the peptidoglycan layer of bacterial cell walls. This natural antimicrobial agent is valued for its specificity and safety profile, making it a critical ingredient in applications demanding gentle yet effective biopreservation. It is essential for manufacturers in the pharmaceutical, food technology, and biotechnology sectors seeking natural, label-friendly solutions for microbial control and research.

Application

• Pharmaceutical Manufacturing: Used as a preservative in ophthalmic solutions, nasal sprays, and other sterile formulations where traditional preservatives may cause irritation.
• Food & Beverage Preservation: Acts as a natural antimicrobial agent in cheese-making (particularly hard cheeses like Grana Padano and Gouda), wines, and sake to control spoilage bacteria like Clostridium tyrobutyricum.
• Biotechnology & Research: Employed in cell lysis procedures for the extraction of intracellular components from Gram-positive bacteria without damaging more robust cell types.
• Diagnostic Reagents: A component in certain microbiological culture media and diagnostic kits for selective bacterial identification.
• Infant Formula & Nutritional Products: Incorporated to mimic the natural antimicrobial activity found in human milk, supporting product safety.
• Cosmetic Formulations: Used in oral care products (toothpaste, mouthwash) and skincare for its antibacterial properties.

Basic Information

Product Name	Lysozyme Hydrochloride
CAS No.	9066-59-5
Molecular Formula	N/A (Protein)
Molecular Weight	Approx. 14.3 kDa
Synonyms	Muramidase Hydrochloride; N-Acetylmuramide Glycanhydrolase; 1,4-β-N-Acetylmuramidase; Egg White Lysozyme HCl; Lysozyme HCl; Globulin G; E 1105 (Food Additive Code)
EINECS	232-963-3

Quality Control

Our Lysozyme Hydrochloride 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 standards including Food Chemicals Codex (FCC) and can supply grades compliant with current Good Manufacturing Practice (cGMP) principles.

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 product is hygroscopic (moisture-sensitive). Allow the container to reach room temperature before opening to prevent condensation and moisture uptake.

Specification

Item	Specification
Appearance	White or almost white, crystalline or amorphous powder
Identification (IR)	Conforms to standard
Enzymatic Activity	≥ 20,000 units/mg (dry basis)
Protein Content (Biuret)	≥ 95%
Loss on Drying	≤ 6.0%
pH (1% Solution)	3.5 - 5.5
Residue on Ignition	≤ 2.0%
Microbiological Control	Total Plate Count < 1,000 CFU/g; Absence of E. coli, Salmonella

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