ε-Polylysine Hydrochloride Sales Price,Beverage Preservative

ε-Polylysine hydrochloride demonstrates remarkable effectiveness in beverage preservation. Below is a detailed evaluation of its performance:

Ⅰ.Antimicrobial Properties  

ε-Polylysine hydrochloride exhibits broad-spectrum antimicrobial activity, effectively inhibiting the growth of various microorganisms, including Gram-positive and Gram-negative bacteria, yeast, and mold. This characteristic is of significant importance in beverage preservation, as it can substantially reduce the risk of microbial contamination and extend the shelf life of beverages.

Ⅱ.Application Performance  

1. Effect of standalone use:  

While ε-Polylysine hydrochloride demonstrates a certain level of antimicrobial activity when used alone, it may not achieve the desired preservative effect in certain beverages.  

2. Effect of combined use:  

When ε-Polylysine hydrochloride is combined with other preservatives (such as sodium benzoate and EDTA), its antimicrobial effectiveness is significantly enhanced. For example, in coconut juice beverages, a preservative combination of ε-Polylysine hydrochloride (0.08 g/kg), sodium benzoate (0.3 g/kg), and EDTA (0.03 g/kg) achieved a 98% inhibition rate for bacteria and a 96% inhibition rate for mold and yeast after being stored at 37°C for 30 days.  

Ⅲ.Safety  

ε-Polylysine hydrochloride is a natural, non-toxic, and biodegradable food additive, and its safety is widely recognized. Acute toxicity tests show that its LD50 is 5 g/kg, comparable to table salt. Upon ingestion, it degrades into lysine, a nutritional substance that is absorbed and utilized by the body, without any toxic side effects. Thus, the use of ε-Polylysine hydrochloride as a preservative in beverages is considered safe.  

Ⅳ.Usage Considerations  

1. Dosage:  

The dosage of ε-Polylysine hydrochloride in beverages should be determined based on the specific type of beverage and the required shelf life. Generally, its addition within the limits specified by national standards (e.g., 0.2 g/kg for beverages) is safe.  

2. pH value:  

ε-Polylysine hydrochloride maintains strong antimicrobial activity within a pH range of 2 to 9. Therefore, there is no need to make significant adjustments to the pH of beverages when using it.  

3. Synergistic effect:  

When combined with other food additives (such as acetic acid, ethanol, glycine, etc.), ε-Polylysine hydrochloride exhibits enhanced antimicrobial effects. Thus, in beverage preservation, using composite preservatives can be considered to improve antimicrobial performance.  

In conclusion, ε-polylysine hydrochloride demonstrates outstanding performance in beverage preservation due to its broad-spectrum antimicrobial properties, excellent safety profile, and synergistic potential. Therefore, it is an ideal choice as a beverage preservative. However, its optimal dosage and combination strategies should be tailored to the specific type of beverage and its shelf-life requirements in practical applications.