Escherichia coli inhibitor

Abstract

The present invention provides a preparation method for an Escherichia coli inhibitor, and is characterized in that edible phenolic perfumes are used. The preparation method comprises steps that: adopting filter paper method to identify the bacteriostatic activity against Escherichia coli of 23 phenolic perfumes which have been approved to use in China, determining the minimum inhibitory concentrations of the perfumes by using double dilution method, and screening out 7 edible phenolic perfumes with good inhibitory effects against Escherichia coli; investigating effects of temperature, ultraviolet radiation and pH value on the bacteriostatic stability of the 7 perfumes, and further screening out 4 perfumes with good bacteriostatic stability; and through compounding the 4 perfumes, finding that when the mass ratio of 2-isopropylphenol, 4-propylphenol, 2-ethylphenol and 2-propylphenol is 1: 4: 2: 1, the inhibitory effect on Escherichia coli is best, and the minimum inhibitory concentration is 0.098 mg / mL.

Description

technical field [0001] The present invention relates to a food preservative, more specifically, an E. coli inhibitor compounded from edible phenolic spices, which can be used to inhibit food and food raw materials such as meat products, beverages, and salty flavors. Escherichia coli in . Background technique [0002] It is estimated that about 20%-30% of the food in our country is polluted by microorganisms and lost in vain every year. Among them, Escherichia coli is a pathogenic bacterium that contaminates food. The Escherichia coli of duck wings and juewei vacuum-packed spicy duck neck exceeded the standard by 2 times, so antisepsis is one of the key issues in the process of food processing and storage. In order to prolong the preservation time of food, food preservation has been a concern of people since ancient times; the traditional method of preservation is to preserve food by drying, pickling, etc., and these methods change the flavor and texture of the processed foo...

AI Technical Summary

Problems solved by technology

In order to prolong the preservation time of food, food preservation has been a concern of people since ancient times; the traditional method of preservation is to preserve food by drying, pickling, etc., and these methods change the flavor and texture of the processed food; modern Anti-corrosion technologies such as freezing, radiation preservation, microwave sterilization, etc. consume a lot of energy and cost, and cannot be applied to all foods, so adding food preservatives is still an effective auxiliary means of food processing and preservation

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