Food preservative Polylysine / Natural preservatives to extend the shelf life of pet food.
Amino acid polymer listed as a food preservative. It is a safe material because it is a fermentation product produced by natural microorganisms. It can also be used as a preservative in pet food.
ε-Polylysine (hereinafter referred to as Polylysine) is a homopolymer consisting of 25 to 35 units formed by the amine group at the ε position and the carboxyl group at the α position of the amino acid L-lysine, linked by amide bonds. It has over 30 years of manufacturing history and is widely used as an amino acid-derived food preservative. The shelf life of typical pet food is 2 to 3 years, but wet-type pet foods, such as treats, often have a shorter shelf life of only about 1 year. Methods for extending shelf life include canning, pouch processing, and converting to dry food, but these are not suitable for flavorful pet foods like wet types. Additionally, some pet owners do not refrigerate after opening. This can lead to mold growth or spoilage during storage, potentially harming the pet's health. Polylysine is a food preservative used in bento, bread, and side dishes, and it is gaining attention as a food preservative that can help prevent spoilage in pet food. 【Features】 ■ A safe material produced through fermentation by natural microorganisms (not genetically modified organisms) ■ Provides a positive image as a natural fermentation product ■ Listed in the existing additive registry as a food preservative ■ A safe domestically produced product
basic information
**Characteristics of Polylysine** - Exhibits excellent antibacterial effects against various microorganisms in small amounts. - Shows antibacterial effects over a wide pH range. - Excellent thermal stability. - Demonstrates synergistic effects when used in combination with chelating agents. - Has a rich track record of use as an additive in cosmetics, hygiene materials, and daily necessities. - Possesses excellent properties as a preservative with high safety. - Highly soluble in water, making it easy to use in food. - Exhibits excellent growth inhibition effects against a wide range of microorganisms, including Gram-positive bacteria (such as Bacillus cereus), Gram-negative bacteria (such as Escherichia coli), and yeasts, particularly those causing food poisoning. - Also shows excellent growth inhibition effects against heat-resistant bacteria, including Bacillus subtilis. - Exhibits strong inhibitory effects against lactic acid bacteria, which significantly affect food spoilage. - High safety has been confirmed through tests for acute toxicity, subacute toxicity, chronic toxicity, mutagenicity, and pharmacokinetics, in accordance with the guidelines of the Ministry of Health, Labour and Welfare. *For more details, please download the PDF or feel free to contact us.*
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Model number/Brand name
Polylysine
Applications/Examples of results
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Line up（2）
| Model number | overview |
|---|---|
| 25% Aqueous Solution | Aqueous solution containing 25% Polylysine |
| 50% Powder | Powder consisting of 50% Polylysine and 50% dextrin |
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