ε-Polylysine | Natural Antimicrobial Preservative for Food and Cosmetics

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Product Introduction

ε-Polylysine (ε-PL) is a naturally occurring cationic homopolymer composed of L-lysine residues linked through ε-amino and α-carboxyl groups. It is produced via fermentation by Streptomyces albulus and is recognized for its remarkable antimicrobial activity, biodegradability, and non-toxic nature.

As a food-grade preservative, ε-Polylysine effectively inhibits the growth of a wide range of microorganisms including Gram-positive and Gram-negative bacteria, yeasts, and molds. It is particularly suited for natural and organic products, especially in applications where synthetic preservatives are not preferred.

Key Features and Benefits:

Broad-spectrum antimicrobial: Inhibits bacteria, yeasts, and molds effectively.

Natural origin: Produced by microbial fermentation; suitable for clean-label applications.

Biodegradable and safe: Non-toxic, non-allergenic, and environmentally friendly.

Heat and pH stability: Remains effective under heat processing and across pH 3–9.

Synergistic effects: Enhances preservation when used with other natural preservatives.

Applications:

Food Industry: Used in cooked rice, noodles, baked goods, sauces, meat products, beverages, and ready-to-eat meals to extend shelf life.

Personal Care Products: Applied in natural cosmetics and hygiene products to maintain microbial stability.

Pharmaceuticals: Used in oral care and topical formulations for its antimicrobial properties.

Biotechnology and Packaging: Incorporated into antimicrobial films and biocoatings.

Usage & Dosage:

Typical use levels range from 20–500 ppm depending on the type of food or formulation. It is most effective when uniformly dispersed in the product matrix.

Regulatory Status:

ε-Polylysine is approved for use in food by South Korea, Japan, China, USA (GRAS status), and several other countries. It is classified as a natural preservative, making it ideal for organic and health-conscious product lines.

Packaging & Storage:

Available in 1 kg, 5 kg, and 25 kg food-grade packaging. Store in a cool, dry place, away from direct sunlight and moisture. Shelf life is 24 months under proper storage conditions.

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