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ε-Polylysine Hydrochloride Wholesale,Fresh Agricultural Products

TIME:2025-01-13

ε-Polylysine hydrochloride has extensive applications in the preservation of agricultural products. Below is a detailed explanation of its use in agricultural product preservation:

1. Mechanism of Action

ε-Polylysine hydrochloride primarily exerts its antimicrobial effects by disrupting microbial cell membranes. It adsorbs onto the cell membrane, increasing its permeability and interfering with the microorganism's energy production, as well as the synthesis of proteins and nucleic acids, thus inhibiting microbial growth and reproduction.

2. Preservation Effects

·Inhibition of Microbial Growth: ε-Polylysine hydrochloride significantly inhibits the growth of various microorganisms, including Gram-positive bacteria, Gram-negative bacteria, yeasts, and molds. This effectively extends the shelf life of agricultural products and reduces spoilage caused by microbial contamination.

·Reduction of Respiration Rate: Agricultural products treated with ε-polylysine hydrochloride typically show a reduction in respiration rate, helping to minimize nutrient consumption and moisture loss, thereby maintaining product quality and extending freshness.

·Preservation of Sensory Quality: ε-Polylysine hydrochloride helps to preserve the sensory qualities of agricultural products, such as color, texture, and flavor. For example, in cherry preservation, the use of an ε-polylysine hydrochloride/chitosan composite coating effectively slows down the loss of vitamin C, maintaining the cherry's color and firmness.

3. Application Areas

·Fruit and Vegetable Preservation: ε-Polylysine hydrochloride has been used in post-harvest preservation studies of various fruits and vegetables, including apples, bamboo shoots, kiwifruits, carrots, and citrus fruits. Studies show that it can effectively inhibit the growth and reproduction of pathogens in fruits and vegetables, reduce decay rates, and maintain high product quality.

·Meat Product Preservation: In meat products, ε-polylysine hydrochloride can be used as a preservative to extend shelf life. For instance, when used in fresh pork preservation, a concentration of 400 mg/L of ε-polylysine hydrochloride significantly inhibits the decline in sensory quality and microbial growth, thus extending shelf life.

4. Methods of Use

ε-Polylysine hydrochloride is typically used in combination with other preservation methods, such as coating and modified atmosphere packaging, to achieve better preservation effects. In coating preservation, ε-polylysine hydrochloride can be combined with other natural polymers (such as chitosan, sodium alginate, etc.) to form a coating solution, which is then applied to the surface of agricultural products to create a protective layer. This layer helps to block factors such as oxygen, carbon dioxide, and moisture, thus preserving the product.

ε-Polylysine hydrochloride is a safe preservative. Acute toxicity tests, chronic toxicity tests, carcinogenicity/mutagenicity tests, and animal absorption, distribution, metabolism, and excretion (ADME) studies all indicate that the intake of ε-polylysine hydrochloride in appropriate amounts does not negatively affect animal health. Therefore, its use in agricultural product preservation is considered safe.

ε-Polylysine hydrochloride has broad application prospects in agricultural product preservation. It not only effectively inhibits the growth and reproduction of microorganisms, extending the shelf life of agricultural products, but it also helps preserve the sensory quality and nutritional value of the products.

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