Extraction method of juglone and derivative in walnut green tangerine peel

An extraction method and technology of walnut green husk powder, which is applied in quinone separation/purification, organic chemistry, etc., can solve the problems of low extraction rate of juglone and its derivatives, difficult disposal of walnut green husk waste, etc., and achieve simple and easy process, high extraction High efficiency, the effect of improving the extraction rate

Inactive Publication Date: 2013-09-25
LULIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for extracting juglone and derivatives from juglone green husks in order to solve the p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for extracting juglone and derivatives in green walnut peel, comprising the following steps:

[0021] Peel fresh walnut green skin, wash 3 (or 4 or 5) times, and dry naturally for 7 (or 8) days;

[0022] After drying, crush and sieve through a 40 (or 50 or 60 or 70 or 80) mesh screen;

[0023] Put the sifted walnut green skin powder in a container, and add pure water according to the solid-liquid mass ratio of 1:8 (or 9 or 10 or 11 or 12);

[0024] Add pectinase and cellulase with a concentration of 1 (or 1.5 or 2 or 2.5) g / L mixed in any ratio to the above solution, and the volume ratio of enzyme and solution is 1:90 (or 95 or 100 or 105 or 110), adjust the pH value of the solution to 5.5 (or 5.8 or 6.3 or 6.7), seal the container, and shake at a constant temperature of 30 (or 35 or 40 or 45 or 50) ℃ for 36 (or 42 or 48 or 54 or 60) h;

[0025] The solution after enzymolysis is concentrated under reduced pressure to obtain a concentrated solution;

[0026]...

Embodiment 2

[0028] A method for extracting juglone and derivatives in green walnut peel, comprising the following steps:

[0029] Peel fresh walnut green skin, wash 3 (or 4 or 5) times, and dry naturally for 7 (or 8) days;

[0030] After drying, crush and sieve through a 40 (or 50 or 60 or 70 or 80) mesh screen;

[0031] Put the sifted walnut green skin powder in a container, and add pure water according to the solid-liquid mass ratio of 1:8 (or 9 or 10 or 11 or 12);

[0032] Add pectinase and cellulase with a concentration of 1 (or 1.5 or 2 or 2.5) g / L mixed in any ratio to the above solution, and the volume ratio of enzyme and solution is 1:90 (or 95 or 100 or 105 or 110), adjust the pH value of the solution to 5.5 (or 5.8 or 6.3 or 6.7), seal the container, and shake at a constant temperature of 30 (or 35 or 40 or 45 or 50) ℃ for 36 (or 42 or 48 or 54 or 60) h;

[0033] The solution after enzymolysis is placed on a microwave ultrasonic extractor, the microwave power is set to 100 (o...

Embodiment 3

[0037] A method for extracting juglone and derivatives in green walnut peel, comprising the following steps:

[0038] Peel fresh walnut green skin, wash 3 (or 4 or 5) times, and dry naturally for 7 (or 8) days;

[0039] After drying, crush and sieve through a 40 (or 50 or 60 or 70 or 80) mesh screen;

[0040] Put the sifted walnut green skin powder in a container, and add pure water according to the solid-liquid mass ratio of 1:8 (or 9 or 10 or 11 or 12);

[0041]Add pectinase and cellulase with a concentration of 1 (or 1.5 or 2 or 2.5) g / L mixed in any ratio to the above solution, and the volume ratio of enzyme and solution is 1:90 (or 95 or 100 or 105 or 110), adjust the pH value of the solution to 5.5 (or 5.8 or 6.3 or 6.7), seal the container, and shake at a constant temperature of 30 (or 35 or 40 or 45 or 50) ℃ for 36 (or 42 or 48 or 54 or 60) h;

[0042] The solution after enzymolysis is placed on a microwave ultrasonic extractor, the microwave power is set to 100 (or...

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PUM

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Abstract

The invention relates to an extraction method of chemical components in walnut green tangerine peel, particularly an extraction method of juglone and derivative in the walnut green tangerine peel. The extraction method comprises the following steps: pealing fresh walnut green tangerine peel, and sieving by a screen mesh of 40-80 meshes after washing, drying and crushing; putting the sieved walnut green tangerine peel powder into a container, and adding pure water according to a solid-liquid quality ratio of 1: (8-12); adding pectase and cellulase in the container, sealing the container after regulating the ph values of the solution in the container to 5.5-6.7, and then oscillating the resultant at the constant temperature of 20-40 DEG C for 36-60h; reducing pressure of and condensing the solution after enzymatic hydrolysis to obtain a concentrate; and extracting the resultant by petroleum ether after freezing and drying the concentrate to obtain juglone and derivative. In the invention, walnut green tangerine peel cell wall is destroyed by enzymatic hydrolysis, and recovery rate is raised by microwave ultrasonic wave processing; the technology of obtaining juglone and derivative by petroleum ether extraction is simple with high recovery rate, and the problems of low pericarp salvaging and low quinone substance recovery rate in walnut plucking and processing are solved.

Description

Technical field [0001] The present invention involves the method of extraction of chemical composition in the tramp, which is specifically a method of extracting and derivatives in the tramps. Background technique [0002] Walnut belongs to the genus Walnut Walnut. my country's walnut planting area is 3175 hectares, with an annual output of nearly 50WT, and the total area and annual output ranks first in the world. The annual output of Walnut Qingki waste is also above 35WT.There are 39 types of volatile oil and 7 kinds of fatty acids, including Walnut Curma, and other seven types of compounds., Has a clear sense of botanical sense.In particular, the walnuts and their derivatives in the walnut green skin have a significant inhibitory effect on the germination of precocious He, clover, rye, high pine, and purple pine.Among them, the 0.5%concentration of the inhibitory rate of high -pine seeds is 97%, which also has a significant inhibitory effect on the growth of early ripen, rye,...

Claims

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Application Information

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IPC IPC(8): C07C46/10C07C50/32
Inventor 杨卫民高晓丽闫艳华赵君杜京旗
Owner LULIANG UNIV
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