Preparation method of thalictrum plant extract, thalictrum plant extract prepared according to preparation method, and application of thalictrum plant extract

A technology of plant extracts and pine grass, applied in botany equipment and methods, plant growth regulators, chemicals for biological control, etc., can solve the problem of unreported system research and no bacteriostatic effect of plant pathogenic fungi Report and other issues, achieve good application prospects, shorten extraction costs, and have no chemical residues

Active Publication Date: 2015-05-13
JIANGXI AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Analyzing the content of the literature search above, it is found that the extracts of the genus Echinacea are mainly used for anti-tumor and inhibition of some human infection pathogenic bacteria; the antibacterial effect on plant pathogenic fungi has not been reported, especially the systematic research on the inhibition of postharvest pathogenic fungi in citrus No report

Method used

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  • Preparation method of thalictrum plant extract, thalictrum plant extract prepared according to preparation method, and application of thalictrum plant extract
  • Preparation method of thalictrum plant extract, thalictrum plant extract prepared according to preparation method, and application of thalictrum plant extract
  • Preparation method of thalictrum plant extract, thalictrum plant extract prepared according to preparation method, and application of thalictrum plant extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1 A kind of Coptidis rhizome extract

[0049] The Coptidis rhizome extract is prepared through the following steps:

[0050] 1. Shuihuanglian is dried at 40°C, crushed and passed through a 40-mesh sieve, and the powder under the sieve is taken;

[0051] II. Adding 20 times the weight percentage of Coptidis rhizome to the powder obtained in step I is 60% ethanol for ultrasonic-assisted extraction, the extraction temperature is 45° C., the extraction time is 1 hour, and the ultrasonic frequency is 30KHz; filter to obtain alcohol extract;

[0052] III. For the alcohol extract obtained in step II, the ethanol is recovered under reduced pressure until there is no alcohol smell, and the Coptidis rhizome extract is obtained.

Embodiment 2

[0053] Embodiment 2 A kind of horsetail extract

[0054] Prepared by the following steps:

[0055] 1. The horsetail is dried at 40°C, crushed and passed through a 40-mesh sieve, and the powder under the sieve is taken;

[0056] II. the powder that step I obtains is added the ethanol that the weight percent concentration of 30 times of described horsetail joint weight is 50% and carries out ultrasonic-assisted extraction, and extraction temperature is 45 ℃, and extraction time is 1 hour, and ultrasonic frequency is 30KHz; Filter, obtain alcohol extract;

[0057] III. The alcohol extract obtained in step II, the ethanol is recovered under reduced pressure until there is no alcohol smell, that is, the horsetail extract.

Embodiment 3

[0090] Embodiment 3 A kind of post-harvest fresh-keeping agent of citrus

[0091] Prescription: 100 mg of Coptidis rhizome extract prepared in Example 1, 10 g of carboxymethyl cellulose, 0.6 g of potassium citrate, 5 g of sucrose ester, 5 g of glycerol, 10 g of calcium propionate, and the balance is distilled water, making a total of 1000 mL.

[0092] Preparation method: Weigh the prescribed amount of carboxymethyl cellulose, add appropriate amount of distilled water to swell for 8 hours, then add distilled water and stir to prepare carboxymethyl cellulose solution. Then add citric acid, sucrose ester, glycerin, calcium propionate and Coptis chinensis extract in sequence, dilute to 1000mL with distilled water, stir evenly, and obtain.

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Abstract

The invention provides a preparation method of a thalictrum plant extract. The preparation method comprises ultrasonic-assisted ethanol extraction of thalictrum plant(s). Preferably, the thalictrum plant(s) are / is radix thalictri simplicis and / or radix et rhizoma thalictri. The invention further provides the thalictrum plant extract obtained according to the preparation method, and application of the thalictrum plant extract in preparation of a medicine composition used for inhibiting citrus postharvest pathogen(s). The thalictrum plant extract has a strong inhibitory effect on the citrus postharvest pathogen(s), and no chemical residue exists after the thalictrum plant extract is used for fresh citrus preservation, so that the thalictrum plant extract is harmless to health of human bodies, free from environmental pollution, and low in drug resistance causing possibility.

Description

technical field [0001] The invention belongs to the fields of fruit disease prevention and fresh-keeping, and in particular relates to a plant extract of the genus Tangsong which has the function of inhibiting post-harvest pathogenic bacteria of citrus, a preparation method and a new application thereof. Background technique [0002] Citrus is the world's number one traded fruit and the third most traded agricultural product. my country is rich in citrus resources and has a long history of planting. At present, the planting area and output of citrus in my country ranks first in the world. In 2013, the planting area of ​​citrus reached more than 36 million mu, and the total output was about 32 million tons. The citrus industry occupies a very important position in my country's agricultural economy. [0003] The citrus fruit tissue is tender and juicy and rich in sugar, which is prone to mechanical damage during the process of picking, storage, transportation, and sales. Afte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154A01N65/32A01P3/00
Inventor 陈金印陈楚英万春鹏
Owner JIANGXI AGRICULTURAL UNIVERSITY
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