Description

ε-Polylysine is a naturally occurring, cationic homopolymer of L-lysine produced by microbial fermentation. This compound is valued for its potent antimicrobial activity against a broad spectrum of bacteria, yeasts, and molds, making it a highly effective and natural preservative. It is primarily utilized in the food and beverage, cosmetic, and pharmaceutical industries where safety, efficacy, and clean-label solutions are paramount.

Application

• Food & Beverage Preservation: A natural preservative in cooked rice, noodles, sauces, salads, and ready-to-eat meals to extend shelf life and inhibit spoilage microorganisms.
• Cosmetics & Personal Care: Used in creams, lotions, and shampoos as a safe, broad-spectrum antimicrobial agent and as a conditioning agent for hair and skin.
• Pharmaceutical Formulations: Acts as a preservative in liquid and semi-solid dosage forms and is investigated for its potential in drug delivery systems.
• Biomedical Research: Employed in cell culture studies and as a biomaterial scaffold component due to its biocompatibility and cationic properties.
• Agricultural Applications: Explored as a bio-fungicide or coating agent for post-harvest protection of fruits and vegetables.

Basic Information

Product Name	ε-Polylysine
CAS No.	28211-04-3
Molecular Formula	(C6H12N2O)n
Molecular Weight	Variable (Polymer)
Synonyms	ε-Poly-L-lysine; Poly(imino(1-amino-1,6-dioxo-1,6-hexanediyl)); ε-PL; E-Polylysine; Poly(ε-lysine); Poly(ε-L-lysine); (S)-Poly[imino(1-oxo-1,6-hexanediyl)]; Antimicrobial Peptide ε-Polylysine
EINECS	Contact for details

Quality Control

Our ε-Polylysine is produced under strict quality management systems. Each batch undergoes rigorous testing to ensure it meets high-purity standards suitable for food-grade and technical applications. A comprehensive Certificate of Analysis (COA) detailing assay, microbial limits, and physical specifications is provided with every shipment to guarantee consistent quality and performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to light yellow powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
pH (1% Solution)	6.0 - 8.0
Loss on Drying	≤ 5.0%
Residue on Ignition	≤ 1.0%
Heavy Metals (as Pb)	≤ 10 ppm
Total Plate Count	≤ 1000 CFU/g

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