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Water-soluble compound type bacteriostat and preparation thereof

A bacteriostatic, water-soluble technology, applied in food preparation, food science, food preservation and other directions, can solve the problems of limited application scope, weak broad-spectrum bacteriostatic effect, low solubility of ethanol extract, etc. Wide antibacterial range and good water solubility

Inactive Publication Date: 2008-09-17
AGRI BIO TECH INST GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing phytostatic agents use a single plant as a raw material. Although the inhibitory effect on certain types of food harmful bacteria is better, the broad-spectrum antibacterial effect is weak; in addition, in terms of extraction technology, the existing phytostatic agents The ethanol extraction process is mostly used, and the solubility of ethanol extracts in water is low, thus limiting its application range in the food industry

Method used

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  • Water-soluble compound type bacteriostat and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Prepare water-soluble composite antibacterial agent according to the following steps:

[0027] 1. Preparation of Bitter Melon Extract

[0028] 1.1 Take commercially available fresh bitter gourd (the oil melon bitter gourd of the same variety) as raw material, cut it into uniform thin slices with a slicer after washing, and dry at 45° C. to obtain dry slices of bitter gourd;

[0029] 1.2 Pulverize the dried bitter gourd slices obtained in step 1.1, and pass through a 60-mesh sieve to obtain dry bitter gourd powder;

[0030] 1.3 Weigh a certain amount of bitter gourd dry powder obtained in step 1.2, add distilled water at a weight ratio of bitter gourd dry powder: water = 1:25, and extract 3 times under reflux in a water bath at 60° C. for 3 hours each time, and then extract the above-mentioned 3 times The extracts are combined;

[0031] 1.4 vacuum filter the extract obtained in step 1.3, concentrate the filtrate on a rotary evaporator, stop concentrating when the volum...

Embodiment 2

[0048] Prepare water-soluble composite antibacterial agent according to the following steps:

[0049] 1. Preparation of Bitter Gourd Water Extract

[0050] 1.1 Take commercially available fresh bitter gourd (the oil melon bitter gourd of the same variety) as raw material, cut it into uniform thin slices with a slicer after washing, and dry at 50° C. to obtain dried bitter gourd slices;

[0051] 1.2 Pulverize the dried bitter gourd slices obtained in step 1.1, and pass through a 50-mesh sieve to obtain dry bitter gourd powder;

[0052] 1.3 Weigh a certain amount of bitter gourd dry powder obtained in step 1.2, add distilled water at a weight ratio of bitter gourd dry powder: water = 1:30, and extract twice in a water bath at 70°C under reflux, each time for 4 hours, and extract the above two times of extraction Liquid merge;

[0053]1.4 vacuum filter the extract obtained in step 1.3, concentrate the filtrate on a rotary evaporator, stop concentrating when the volume of the fi...

Embodiment 3

[0070] Prepare water-soluble composite antibacterial agent according to the following steps:

[0071] 1. Preparation of Bitter Melon Extract

[0072] 1.1 Take commercially available fresh bitter gourd (the oil melon bitter gourd of the same variety) as raw material, cut it into uniform thin slices with a slicer after washing, and dry at 40° C. to obtain dry slices of bitter gourd;

[0073] 1.2 Pulverize the dried bitter gourd slices obtained in step 1.1, and pass through a 40-mesh sieve to obtain dry bitter gourd powder;

[0074] 1.3 Weigh a certain amount of bitter gourd dry powder obtained in step 1.2, add distilled water at a weight ratio of bitter gourd dry powder: water = 1:20, and reflux extract in a water bath at 50°C for 3 times, each time for 5 hours, and then extract the above-mentioned 3 times The extracts are combined;

[0075] 1.4 vacuum filter the extract obtained in step 1.3, concentrate the filtrate on a rotary evaporator, stop concentrating when the volume o...

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Abstract

The invention discloses a water soluble complex formulation type bacteria inhibitor and the preparation method, which comprises extraction of balsam pear, extraction of garlic and extraction of ginger. The invention is characterized in that: three kinds of balsam pear, garlic and ginger respectively having weak and strong inhibition function upon bacteria, mould fungus and yeast are used as raw material to prepare the bacteria inhibitor, thereby effectively spreading inhibition spectrum of bacteria inhibitor and overcoming the failures such as mostly using single plant as raw material and having weaker inhibition result of broad spectrum for prior plant inhibitor. The bacteria inhibitor has the advantages of wider bacterial inhabitation range and better result.

Description

technical field [0001] The invention relates to a bacteriostat, in particular to a water-soluble compound bacteriostat, and also relates to a preparation method of the water-soluble compound bacteriostat. Background technique [0002] In the process of prolonging the shelf life of food and ensuring the quality of food, food antibacterial agents play a very important role. The main components of traditional food antibacterial agents are chemical synthetic products. This synthetic antibacterial agent has toxicity and carcinogenic problems. It has been gradually banned or restricted in many countries. Therefore, food additives have become non-toxic, safe and natural. International trends in the direction of development. [0003] Bitter melon is a kind of food and medicine crop, which has various functions such as lowering blood sugar, lowering blood fat, anti-tumor, anti-virus, improving the body's immunity, and inhibiting bacteria. Previous studies have shown that bitter gou...

Claims

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Application Information

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IPC IPC(8): A23L3/3472A23L1/28A23L33/105
Inventor 张雁张名位魏振承丘银清池建伟唐小俊张瑞芬李健雄
Owner AGRI BIO TECH INST GUANGDONG ACADEMY OF AGRI SCI
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