Unlock instant, AI-driven research and patent intelligence for your innovation.

Extraction technology for high-purity aloe chromone

An extraction process, high-purity technology, applied in the direction of organic chemistry, can solve the problems of high purification cost, unsuitable for separation and purification of aloe chromone, etc., to improve purification efficiency, avoid high cost and unsuitable for batch separation and purification, operation simple effect

Active Publication Date: 2019-01-11
ANHUI MEIJI FLAVORING FOOD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can make the purity of the prepared aloe chromone reach more than 95%, it is only suitable for a small amount of separation and p

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Aloe Vera leaf pretreatment: the Aloe Vera leaf that 20kg is freshly harvested utilizes clear water to rinse 2-3 times, to remove surface dust and impurity;

[0037] (2) Aloe leaf pulping: the washed aloe leaves are cut into small sections and put into a refiner, and water with 2 times the fresh weight of aloe leaves is added, and after 10 minutes of refining, a 100-mesh sieve is passed, and the resulting filter residue is transferred to In the refiner, then add water with 0.5 times the fresh weight of the aloe leaf, refine the pulp again for 10 minutes, pass through a 100-mesh sieve, and combine the filtrates to obtain the aloe juice;

[0038] (3) Purification of aloe juice: the aloe juice was mixed with 6.5m 3 The flow rate of / h flows through the purified resin, and then rinses the resin with absolute ethanol 0.5 times the volume of the purified resin bed, leaches out a small amount of aloe chromone remaining in the resin, and collects the purified liquid after t...

Embodiment 2

[0048] (1) Aloe Vera leaf pretreatment: the Aloe Vera leaf that 20kg is freshly harvested utilizes clear water to rinse 2-3 times, to remove surface dust and impurity;

[0049] (2) Aloe leaf pulping: the washed aloe leaves are cut into small sections and put into a refiner, and water with 2 times the fresh weight of aloe leaves is added, and after 10 minutes of refining, a 100-mesh sieve is passed, and the resulting filter residue is transferred to In the refiner, then add water with 0.5 times the fresh weight of the aloe leaf, refine the pulp again for 10 minutes, pass through a 100-mesh sieve, and combine the filtrates to obtain the aloe juice;

[0050] (3) Purification of aloe juice: the aloe juice was mixed with 6.5m 3 The flow rate of / h flows through the purified resin, and then rinses the resin with absolute ethanol 0.5 times the volume of the purified resin bed, leaches out a small amount of aloe chromone remaining in the resin, and collects the purified liquid after t...

Embodiment 3

[0100] Based on Example 1, set the comparative example 1 that does not add chitosan acetic acid solution, the comparative example 2 that does not add modifier, the comparative example 3 that removes impurities by commercially available D201 resin, adopt saturated aluminum sulfate solution as precipitation The comparative example 4 of agent.

[0101] Using Examples 1-2 and Comparative Examples 1-4 to extract aloe chromone from the same batch of aloe vera leaves, and measure the extraction rate and purity of aloe chromone, the results are shown in Table 1.

[0102] Table 1 Extraction rate and purity of aloe chromone

[0103] group

[0104] Extraction rate=(actual yield of aloechromone / theoretical yield of aloechromone)×100%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an extraction technology for high-purity aloe chromone and relates to the technical field of plant extraction. The extraction technology comprises the following steps: pre-treating aloe leaves; pulping aloe leaves; purifying aloe juice; concentrating and extracting; precipitating. A purified resin prepared from epoxy resin and chitosan through cross-linking polymerization has an excellent absorbing effect on impurities in aloe chromone and meanwhile is capable of protecting the structure of the aloe chromone from being damaged; a precipitator prepared from malic acid and polyvinyl alcohol is capable of further purifying and precipitating aloe chromone; the technology is efficient and convenient and is suitable for large-scale industrial production.

Description

Technical field: [0001] The invention relates to the technical field of plant extraction, in particular to an extraction process of high-purity aloe chromone. Background technique: [0002] Aloe chromones and aloe anthraquinones are two main classes of small molecule active ingredients present in aloe vera leaves. Aloe anthraquinones, mainly aloin and aloe-emodin, are the first active ingredients found in aloe leaves. In recent years, people have begun to conduct in-depth research on aloe chromones. Aloe chromone is a class of natural active substances with great potential for development. Pharmacological studies have shown that aloe chromone has anti-inflammatory, anti-oxidant and tyrosinase-inhibiting activities. Aloe chromone mainly exists in the cortex of aloe leaves, and its content distribution in the cortex is as follows: the inner surface of the leaf near the axis is higher than the outer surface of the leaf off the axis, the tip of the leaf is higher than the base ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07D407/04
CPCC07D407/04
Inventor 王启标
Owner ANHUI MEIJI FLAVORING FOOD