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A kind of preparation method of Prunus chinensis extract and the Peach quinquefolium extract prepared therefrom and application

A technology for extracts of peaches and citrus, applied in botany equipment and methods, chemicals for biological control, applications, etc., can solve the problems of no extracts of citrus citrus and pathogenic fungi that have not been seen in postharvest citrus. The effect of shortening the extraction cost, avoiding damage, and good application prospects

Active Publication Date: 2017-08-29
JIANGXI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there has been no report on the effect of the extract of Prunus chinensis on postharvest pathogenic fungi in citrus, and there is no report on the preparation of Peach quinquefolium extract by ultrasonic-assisted extraction

Method used

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  • A kind of preparation method of Prunus chinensis extract and the Peach quinquefolium extract prepared therefrom and application
  • A kind of preparation method of Prunus chinensis extract and the Peach quinquefolium extract prepared therefrom and application
  • A kind of preparation method of Prunus chinensis extract and the Peach quinquefolium extract prepared therefrom and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1 A five-finger peach extract

[0041] Described five-finger peach extract is prepared through the following steps:

[0042] 1. Dry the five-finger hair peach at 40°C, pass through a 40-mesh sieve after crushing, and get the powder under the sieve;

[0043] II. the powder that step I obtains adds the ethanol that 20 times of the weight percent concentration of described five-finger hair peach weight is 95% and carries out ultrasonic-assisted extraction, and extraction temperature is 60 ℃, and extraction time is 2 hours, and ultrasonic frequency is 30KHz; Filter, obtain alcohol extract;

[0044] III. The alcohol extract obtained in step II, the ethanol is recovered under reduced pressure until there is no alcohol smell, so as to obtain the five-finger peach extract.

Embodiment 2

[0073] A kind of five-finger peach extract of embodiment 2

[0074] Described five-finger peach extract is prepared through the following steps:

[0075] 1. Dry the five-finger hair peach at 50°C, pass through a 40-mesh sieve after crushing, and get the powder under the sieve;

[0076] II. in the powder that step I obtains, add the ethanol that the weight percent concentration of 30 times of described five-finger hair peach weight is 100% and carry out ultrasonic-assisted extraction, and extraction temperature is 50 ℃, and extraction time is 1 hour, and ultrasonic frequency is 30KHz; Filter, obtain alcohol extract;

[0077] III. the alcohol extract that step II obtains, the ethanol is reclaimed under reduced pressure to have no alcohol smell, promptly obtains described Prunus chinensis extract.

Embodiment 3

[0078] Embodiment 3 A kind of post-harvest fresh-keeping agent of citrus

[0079]Prescription: 100 mg of Prunus chinensis extract prepared in Example 1 (concentration 1 g medicinal material / mL), carboxymethyl cellulose 10 g, potassium citrate 0.6 g, sucrose ester 5 g, glycerol 5 g, calcium propionate 10 g, and the remainder is distilled water, A total of 1000mL was made.

[0080] 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 esters, glycerin, calcium propionate and Prunus alba extract in sequence, dilute to 1000mL with distilled water, stir evenly, and obtain.

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Abstract

The invention provides a method for preparing a radix fici simplicissimae extract. The method comprises the step of performing ultrasonic-assisted ethanol extraction on radix fici simplicissimae. The invention also provides the radix fici simplicissimae extract obtained by the preparation method, and an application of the radix fici simplicissimae extract in preparation of pharmaceutical compositions for inhibiting pathogenic bacteria after citrus harvesting. The radix fici simplicissimae extract has a good effect of inhibiting the pathogenic bacteria after citrus harvesting, is used for eliminating chemical residues after citrus preservation, does not have health hazards to the human body and is environment-friendly, and the resistance to drugs is difficultly caused.

Description

technical field [0001] The invention belongs to the field of fruit disease prevention and preservation, and in particular relates to a five-finger peach extract capable of inhibiting postharvest 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 rank 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] 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. After the peel is damaged, it is susc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/08A01P3/00A23B7/154
Inventor 陈金印陈楚英万春鹏彭旋
Owner JIANGXI AGRICULTURAL UNIVERSITY