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Natural food preservative and preparation method of same

A technology of natural food and preservatives, applied in the fields of food preservation, food science, application, etc., can solve the problem of high price, and achieve the effect of low cost and no toxic and side effects

Inactive Publication Date: 2013-08-07
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Forsythia fruit is currently mainly used in the preparation of traditional Chinese medicine, and it is expensive to use as a preservative
At present, there is no report on the preparation of food preservatives from forsythia leaves

Method used

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  • Natural food preservative and preparation method of same
  • Natural food preservative and preparation method of same
  • Natural food preservative and preparation method of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 Take dried forsythia leaves, crush them, add 60% ethanol aqueous solution of 8 times the amount of raw materials, reflux for extraction for 1 hour, extract twice, filter, combine the two filtrates, and concentrate the filtrate under reduced pressure at 60 ° C to a specific gravity of 1.05 to 1.10. Forsythia leaf extract, the forsythia leaf extract was further separated by polyamide column chromatography, first rinsed with water for 3 column volumes until the rinse was light yellow, then rinsed with 40% ethanol for 4 column volumes, collected alcohol The eluate was concentrated and dried under reduced pressure at 60°C to obtain dry solid powder A of forsythia leaf;

[0018] Take dried Scutellaria baicalensis, pulverize it, add 60% ethanol aqueous solution of 6 times the amount of the raw material, reflux for extraction for 1 hour, extract twice, filter, combine the two filtrates, concentrate the filtrate under reduced pressure at 60°C, and dry to obtain dried Sc...

Embodiment 2

[0020] Example 2 Take dried forsythia leaves, crush them, add 30% aqueous ethanol solution 10 times the amount of raw materials, and reflux for extraction for 1 hour, extract twice, filter, combine the two filtrates, and concentrate the filtrate under reduced pressure at 60°C to a specific gravity of 1.05 to 1.10. Forsythia leaf extract, the forsythia leaf extract was further separated by polyamide column chromatography, first rinsed with water for 3 column volumes until the rinse was light yellow, then rinsed with 40% ethanol for 4 column volumes, collected alcohol The eluate was concentrated and dried under reduced pressure at 60°C to obtain dry solid powder A of forsythia leaf;

[0021] Take dried Scutellaria baicalensis, crush it, add 30% ethanol aqueous solution 10 times the amount of the raw material, reflux for extraction for 1 hour, extract twice, filter, combine the two filtrates, concentrate the filtrate under reduced pressure at 60°C, and dry to obtain dried Scutella...

Embodiment 3

[0023] Example 3 Take dried forsythia leaves, crush them, add 40% ethanol aqueous solution of 9 times the amount of raw materials, reflux for extraction for 1 hour, extract twice, filter, combine the two filtrates, and concentrate the filtrate under reduced pressure at 60°C to a specific gravity of 1.05-1.10 Forsythia leaf extract, the forsythia leaf extract was further separated by polyamide column chromatography, first rinsed with water for 3 column volumes until the rinse was light yellow, then rinsed with 40% ethanol for 4 column volumes, collected alcohol The eluate was concentrated and dried under reduced pressure at 60°C to obtain dry solid powder A of forsythia leaf;

[0024] Take dried Scutellaria baicalensis, pulverize it, add 40% ethanol aqueous solution 9 times the amount of the raw material, reflux for extraction for 1 hour, extract twice, filter, combine the two filtrates, concentrate the filtrate under reduced pressure at 60°C, and dry to obtain dried Scutellaria...

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Abstract

The invention discloses a natural food preservative. The natural food preservative is compounded by effective antibiotic parts of Forsythia suspensa leaves and traditional Chinese medicine Scutellaria baicalensis, wherein the effective part of the Forsythia suspense leaves is 30%-70% (mass percent), and the others are the effective parts of Scutellaria baicalensis. The natural food preservative has stronger growth inhibition effect on the bacteria, such as staphylococcus aureus, escherichia coli, bacillus subtilis, saccharomyces cerevisiae, Aspergillus flavus and Penicillium chrysogenum, which are common and are likely to cause food spoilage. The Forsythia suspensa leaves are mainly used for making Forsythia suspensa leave (Forsythia suspensa) tea in civil society, and have the effects of clearing heat and removing toxicity, cooling, and so on. The Scutellaria baicalensis is a common traditional Chinese medicine, and has the effects of clearing heat and drying dampness, and removing toxicity. Thus, the natural food preservative compounded by effective antibiotic parts of the Forsythia suspensa leaves and the Scutellaria baicalensis is nontoxic, has no side effect, has better bacterial growth inhibition effect, and can be used for prolonging the food spoilage and preservation time for various foods.

Description

technical field [0001] The invention relates to a natural food preservative, in particular to a natural food preservative prepared from forsythia leaves and traditional Chinese medicine scutellaria baicalensis. Background technique [0002] Chemical or synthetic preservatives have been widely used in food because it can effectively prevent food spoilage caused by microorganisms, thereby prolonging the shelf life of food. However, with the advancement of science and technology, the safety of food preservatives has gradually attracted widespread attention, and consumers' awareness and requirements for food safety are also increasing. Therefore, food preservatives are also showing a trend of developing from chemically synthesized food preservatives to natural food preservatives, and from higher toxicity to less toxic and safer. [0003] Forsythia leaves are the dried leaves of Forsythia genus Forsythia in the family Oleaceae. It has strong antibacterial activity. In the folk f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/3472
Inventor 张立伟徐军秦臻李安平
Owner SHANXI UNIV
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