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

A method for extracting prunus padus L. anthocyanin from prunus padus L. pericarp

A technique for thick plum anthocyanins and thick plums is applied in the field of preparing thick plum anthocyanins, and can solve the problems of time-consuming, insignificant improvement in product purity, and inability to industrialize production.

Inactive Publication Date: 2017-12-15
DAXINGANLING LINGOBERRY BOREAL BIOTECH CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of organic solvent extraction is that it is easy to operate and does not require complicated equipment; the disadvantage is that the consumption of organic solvents is high, time-consuming, and heating during extraction will cause oxidative degradation of anthocyanins
The microwave method and the ultrasonic method cannot carry out large-scale industrial production due to the limit value of the equipment.
Supercritical extraction can be industrialized at present, but due to the particularity of this technology, the cost of anthocyanins produced by this technology is high, and this product cannot be promoted to ordinary consumers
[0005] At present, the commonly used purification method is mainly carried out by using macroporous adsorption resin. The advantage of macroporous adsorption resin is that it has a large adsorption capacity, can be used repeatedly, and can save costs at a certain cost; the disadvantage is that there are more impurities adsorbed. The product purity improvement is not very significant

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

[0018] 1000kg of thick plums and 5000kg of extraction solvent alkaline water (pH=12) are dropped into the extraction tank, and 5kg of vitamin C with a purity of 95% is dropped into the extraction tank. The extraction temperature is 70°C, and the extraction time is 90min. Collect the extract; adjust the collected extract with an acidic aqueous solution (pH=1) to make the pH 6.4, then add ZTC1+1 type flocculant therein, with an addition of 2%, at a temperature of 40°C Stir for 5min under the condition of the centrifuge, then let it stand for 120min, centrifuge to collect the centrifugate; purify the centrifugate with 001 type cation exchange resin, the column flow rate of the centrifugate is 1BV / h, and then rinse with deionized water, the flow rate is 1.5BV / h, the consumption of deionized water is 2BV, and then eluted with 4.5% hydrochloric acid aqueous solution, the flow rate of eluent is 1.5BV / h, and the consumption of eluent is 5BV, obtains the wash containing anthocyanin deh...

Embodiment 2

[0020] 1000kg of thick plums and 5000kg of extraction solvent alkaline water (pH=11) are dropped into the extraction tank, and 10 kg of vitamin E with a purity of 50% is dropped into the extraction tank. The extraction temperature is 75° C., and the extraction time is 120 min. Collect the extract; adjust the collected extract with an acidic aqueous solution (pH=1) to make the pH 6.7, then add ZTC1+1 type flocculant therein, with an addition of 2%, at a temperature of 40°C Stir for 5min under certain conditions, then let stand for 120min, centrifuge to collect the centrifugate; purify the centrifugate with D-85 macroporous propionate series weakly acidic cation exchange resin, and the column flow rate of the centrifugate is 1BV / h , then rinse with deionized water, the flow rate is 1.5BV / h, the amount of deionized water is 2BV, and then eluted with 3.0% aqueous hydrochloric acid solution, the flow rate of the eluent is 1.5BV / h, the amount of eluent For 4.5BV, an eluate containin...

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 belongs to the field of natural organic chemistry, and relates to an extraction and separation method for anthocyanin from prunus padus L.. The method includes performing extraction under alkaline conditions by adopting tea polyphenols as an antioxidant, then removing impurities under acidic conditions by utilizing a flocculant, and purifying an extracted liquid by utilizing cation type exchange resin to obtain a high-purity anthocyanin product. The method is advantageous in that 1) water is adopted as an extracting solvent under alkaline conditions so that the production cost is greatly reduced than the cost of traditional extraction utilizing ethanol; 2) the natural antioxidant is added in an extraction process, thus effectively reducing loss of the anthocyanin; 3) impurities in the extracted liquid are precipitated by adopting the flocculant, thus facilitating purity increasing of an anthocyanin product; and 4) the cation type exchange resin is adopted to purify the extracted liquid so that the purity of the anthocyanin product is significantly increased. The anthocyanin prepared by the method can be widely applied in the fields of healthcare foods, cosmetics, and the like.

Description

technical field [0001] The invention belongs to the field of natural organic chemistry, and relates to an industrial method for preparing thick plum anthocyanins from thick plum peels. Background technique [0002] Anthocyanin is a water-soluble pigment that can change color with the acidity and alkalinity of the cell fluid. The cell fluid is acidic and reddish, and the cytosol is alkaline and blue. Anthocyanins are one of the main pigments that make up the color of petals and fruits. Anthocyanins are secondary metabolites of plants, which play an important role in physiology. Anthocyanins are pure natural anti-aging nutritional supplements. Studies have proved that they are the most effective plant antioxidants found by humans today. Its antioxidant performance is better than that of vitamins. E is fifty times higher than vitamin C and twenty times higher. Its bioavailability to the human body is 100%, and it can be detected in the blood 20 minutes after taking it. It has...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C07H17/065C07H1/08C09B61/00
CPCC07H17/065C07H1/08C09B61/00
Inventor 姚德坤李玉伟万莉苏学辉
Owner DAXINGANLING LINGOBERRY BOREAL BIOTECH CO LTD