Citric acid-lauric acid monoglyceryl ester microemulsion and preparation method thereof

A technology of monolaurin and citric acid is applied in the fields of food science, food preservation, application, etc., and can solve the problems such as difficulty in achieving ideal antiseptic and fresh-keeping effect, high melting point of monolaurin, and difficulty in effectively exerting antiseptic effect, etc. Achieve the effect of improving antiseptic and fresh-keeping effect, enhancing antiseptic effect and low cost

Inactive Publication Date: 2011-07-27
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing monoglyceryl laurate (GML) has good antiseptic function, is a safe, efficient, broad-spectrum antibacterial agent, its antibacterial effect is not affected by pH, and is superior to sorbic acid, benzoic acid, dehydrogenate, etc. Acidic preservatives and paraben preservatives, but due to the diversity and complexity of spoilage microorganisms in food, it is often difficu

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  • Citric acid-lauric acid monoglyceryl ester microemulsion and preparation method thereof

Examples

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Example Embodiment

[0017] Example 1

[0018] The present invention is a citric acid-lauric acid monoglyceride microemulsion. The microemulsion system consists of the following components and parts by weight: 4 parts of lauric acid monoglyceride; 6 parts of surfactants; 7 parts of co-surfactants; 3 parts of citric acid; 12 parts of distilled water. The raw material lauric acid monoglyceride is provided by Hangzhou Kangyuan Food Co., Ltd., and the monoester content is above 90%. The specific preparation method is as follows:

[0019] Place 4 parts of lauric acid monoglyceride; 6 parts of surfactant; 7 parts of co-surfactant; 3 parts of citric acid; 12 parts of distilled water in a flat-bottomed glass test tube and mix them evenly. The temperature is 25℃. Under the conditions, the citric acid-lauric acid monoglyceride microemulsion was obtained by ultrasonic treatment for 30 minutes, and the microemulsion system was clear, transparent and uniform.

[0020] In this specific embodiment, the surfactant is T...

Example Embodiment

[0022] Example 2

[0023] The present invention is a citric acid-lauric acid monoglyceride microemulsion. The microemulsion system consists of the following components and parts by weight: 10 parts of lauric acid monoglyceride in the oil phase; 10 parts of surfactants; and co-surfactant 15 parts; 5 parts of citric acid; 18 parts of distilled water. Among them, the raw material lauric acid monoglyceride is provided by Hangzhou Kangyuan Food Co., Ltd., and the monoester content is above 90%. The specific preparation method is as follows:

[0024] Put 10 parts of lauric acid monoglyceride into oil phase, 10 parts of surfactant, 15 parts of co-surfactant, 5 parts of citric acid, and 18 parts of distilled water in parts by weight. After mixing uniformly, the temperature is Under the condition of 25°C, ultrasonic treatment for 35 minutes, the citric acid-lauric acid monoglyceride microemulsion was obtained, and the microemulsion system was clear, transparent and uniform.

[0025] In this ...

Example Embodiment

[0027] Example 3

[0028] The present invention is a citric acid-lauric acid monoglyceride microemulsion. The microemulsion system consists of the following components and parts by weight: 6 parts of lauric acid monoglyceride in the oil phase; 4 parts of surfactants; and co-surfactant 8 parts; 2 parts of citric acid; 8 parts of distilled water, among which the raw material lauric acid monoglyceride is provided by Hangzhou Kangyuan Food Co., Ltd., and the monoester content is above 90%. The specific preparation method is as follows:

[0029] According to parts by weight, 6 parts of lauric acid monoglyceride are oil phase; 4 parts of surfactant; 8 parts of co-surfactant; 2 parts of citric acid; 8 parts of distilled water are placed in a flat-bottomed glass test tube and mixed evenly, and the temperature is Under the condition of 25°C, ultrasonic treatment for 25 minutes, a citric acid-lauric acid monoglyceride microemulsion was obtained, and the microemulsion system was clear, transp...

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Abstract

The invention relates to a citric acid-lauric acid monoglyceryl ester microemulsion and a preparation method thereof. The citric acid-lauric acid monoglyceryl ester microemulsion is characterized in that the microemulsion system comprises the following components in parts by weight: 4-10 parts of lauric acid monoglyceryl ester, 4-10 parts of surfactant, 7-15 parts of cosurfactant, 2-5 parts of citric acid and 8-18 parts of distilled water. The preparation method comprises the steps: preparing all the components in required proportion; and putting the prepared components in a container and mixing evenly; treating with ultrasonic weave for 25-35 minutes at the temperature of 25 DEG C to finally obtain the citric acid-lauric acid monoglyceryl ester microemulsion. The invention has the advantages that the water solubility and the anticorrosion effect of the lauric acid monoglyceryl ester are improved, and the citric acid with synergism and bacteriostatic effect is dissolved into the microemulsion system, thereby improving the bacteriostatic effect of the microemulsion.

Description

technical field [0001] The invention relates to a food-grade microemulsion preservative, in particular to a citric acid-lauric acid monoglyceride microemulsion and a preparation method thereof. Background technique [0002] Microemulsion is a transparent or translucent system spontaneously formed by oil and water (salt water) and a large number of surfactants and co-surfactants (generally short and medium chain alcohols). The particle radius of the dispersed phase of the microemulsion is very small, usually in the range of 1 to 100nm, and it is a thermodynamically stable system without stratification after high-speed centrifugation. Because microemulsions can carry substances with different solubility at the same time, and it is possible to develop a system that can be infinitely diluted with water, it is very suitable for solving the problems of dissolution and use of compound preservatives with different solubility. [0003] The existing monoglyceryl laurate (GML) has goo...

Claims

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Application Information

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IPC IPC(8): A23L3/3517
Inventor 翁佩芳江华珍冯凤琴张辉
Owner NINGBO UNIV
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