Bastard tamarind legume extract, and preparation method thereof and anti-bacteria agent

A technology of extracts and antibacterial agents, applied in the fields of Albizia Julibrissin pod extract and its preparation and antibacterial agents, can solve the problems of underutilization

Inactive Publication Date: 2009-06-24
HUAIYIN TEACHERS COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Albizia julibrissin pods are generally left to disappear naturally as waste after fruiting in autumn, and are not fully utilized

Method used

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  • Bastard tamarind legume extract, and preparation method thereof and anti-bacteria agent
  • Bastard tamarind legume extract, and preparation method thereof and anti-bacteria agent
  • Bastard tamarind legume extract, and preparation method thereof and anti-bacteria agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: the selection of extraction solvent

[0025] Get 50g and crush it to 8 meshes of Albizia juliensis pods, use an extraction solvent consisting of 150mL of industrial alcohol with a concentration of 95% by volume, 50mL of NaOH solution with a mass fraction of 6%, and 100mL of industrial alcohol, or 150mL of a NaOH solution with a mass fraction of 3%, or 150mL Water, or 150mL of 3% hydrochloric acid solution with a mass fraction of 150mL, respectively, reflux at 80°C for 3 hours, filter while hot, repeat three times, and combine the three extracts.

[0026]Adjust the pH value of the extracted extract to 4-6, then rotate and distill it to 1 / 2 the volume of the original extract; directly add 10 g of 80-mesh silica gel to the industrial alcohol extract, stir evenly, and continue distilling until a loose powder is obtained. The loose matter and the loose matter are separated and extracted in a Soxhlet extractor with the separation solvent petroleum ether, diethyl...

Embodiment 2

[0031] Embodiment 2: Selection of extraction time

[0032] Mix 50mL of NaOH solution with a mass fraction of 6% and 100mL of industrial alcohol to form the extraction solvent, take 20g and crush it into 5 parts of Albizia juliensis pods of 8 meshes, soak them in the extraction solvent respectively, and reflux at 80°C for 20min, 60min, 90min, respectively. 20min, 150min, filter while hot, repeat three times, and combine the three extracts.

[0033] Use hydrochloric acid to adjust the pH value to 4-6, and then distill under reduced pressure, distill to 1 / 2 volume of the original extract, and use separation solvent petroleum ether, diethyl ether, ethyl acetate, normal Butanol is extracted in a separatory funnel; the extraction phase of each separation solvent is distilled to obtain extracts of different extraction solvents, and the extraction rate is calculated according to the above formula for calculating the extraction rate. For specific values, see figure 1 . from figure 1...

Embodiment 3

[0034] Embodiment 3: the selection of the crushed particle size of pods of Albizia Julibrissin

[0035] The specific operation is the same as the above-mentioned Example 2, the fixed extraction time is 90min, and the particle size of Albizia juliensis pods is 5 mesh, 8 mesh, 10 mesh, and 18 mesh respectively, and the extraction rate is calculated according to the above formula for calculating the extraction rate. The results show that the larger the mesh number, the smaller the particles and the higher the extraction rate, but the smaller the particles, the more difficult the subsequent separation. Therefore, the best particle selection is 8-10 mesh. see results figure 2 .

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PUM

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Abstract

The invention relates to a silk tree pod extract and preparation method thereof with antibacterial agent. The silk tree pod extract uses silk tree pod as raw materials, which is extracted in the solvent extraction through separating solvent after leaching, extract is obtained through distilling extract phase. The antibacterial agent prepared by the extract has different inhibitory action on coliform bacteria, staphylococcus aureus, salmonella, huge bacillus, bacillus subtilis and Pseudomonas aeruginosa, wherein ether extract has the strongest inhibitory action on the above fungi, particularly for the huge bacillus, bacillus subtilis with higher inhibitory action than on penicillin. The invention makes full use of silk tree pod resource which is not developed, provides operable key technology for developing novel antibacterial agent, and provides novel technical support for plant antimicrobial agent.

Description

technical field [0001] The invention relates to an extract of Albizia Julibrissin pods, a preparation method thereof and an antibacterial agent. Background technique [0002] Natural medicines are derived from plants, animals, minerals, and primarily of plant origin. With the advancement of modern technology, especially the breakthroughs in compound separation and structure identification, the research on natural products has declined because the era of combinatorial chemical synthesis is not suitable for high-throughput synthesis [KOEKN F E, CARTER G T. The evolving role of natural products in drug discovery[J].Nature Reviews Drug Discovery, 2005,4:206-220.] and the past of the era of organic synthesis that only pursues quantity but ignores quality [CLARDY J, WALSH C. Lessons from natural molecules[J]. Nature, 2004, 432:829-837], coupled with the serious threat of pathogenic bacteria resistance, botanical fungicides have the characteristics of not polluting the environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/20A01P1/00
Inventor 吕金顺王新风
Owner HUAIYIN TEACHERS COLLEGE
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