Extraction method of Alstonia yunnanensis leaf pigment

A maple leaf and four-corner technology, which is applied in the field of extraction and production of Chinese medicinal materials, can solve the problems of large production equipment, low material utilization rate, and large power consumption, and achieve small footprint, good fluidity, and safe production process. Effect

Pending Publication Date: 2021-11-26
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method, the utilization rate of raw materials is low, the power consumption is large, and the production equipment occupies a large area

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The method for extracting the four-cornered maple leaf pigment of the present embodiment comprises the steps:

[0028] Take 1kg of four-cornered maple leaf, beat it into 100 mesh powder, add ethanol / water solvent with a volume ratio of 1.5:1, and the solid content rate is 5%, circulate in the AFR microchannel reactor at 100ml / min and 30°C, and take the AFR The outlet liquid of the microchannel reactor is analyzed for the composition of the outlet liquid and leaf powder.

[0029] With the method of this embodiment, the pigment extraction rate is 66.7%, and the loss of tannins and volatile oil components in the leaf powder is small, which is very beneficial for subsequent utilization.

Embodiment 2

[0031] Take 1kg of four-cornered maple leaf, grind it into 150 mesh powder, add ethanol / water solvent with a volume ratio of 2:1, and the solid content rate is 7%, circulate it in the AFR microchannel reactor at 120ml / min, 30°C, and take it out Liquid, analyze the composition of the outlet liquid and leaf powder.

[0032] With the method of this embodiment, the pigment extraction rate is 69.7%, and the loss of tannins and volatile oil components in the leaf powder is small, which is very beneficial for subsequent utilization.

Embodiment 3

[0034] Take 1kg of four-cornered maple leaf, grind it into 200 mesh powder, add ethanol / water solvent with a volume ratio of 4:1, and the solid content rate is 10%, circulate in the AFR microchannel reactor at 150ml / min and 60°C, and take it out Liquid, analyze the composition of the outlet liquid and leaf powder.

[0035] With the method of this embodiment, the pigment extraction rate is 96.3%, and the loss of tannins and volatile oil components in the leaf powder is small, which is very beneficial for subsequent utilization.

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PUM

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Abstract

The invention discloses an extraction method of Alstonia yunnanensis leaf pigment, and belongs to the technical field of extraction and production of traditional Chinese medicinal material components. The extraction method comprises the following steps: taking Alstonia yunnanensis leaves, grinding the leaves into powder, adding the powder into an ethanol / water mixed solvent according to a certain solid content, and extracting through an AFR microchannel reactor to obtain a pigment extract liquid. The method disclosed by the invention is short in extraction time, high in yield, green, safe and environment-friendly in extraction process and small in occupied area of equipment, and has good industrial prospects and social benefits.

Description

technical field [0001] The invention relates to a method for extracting four-cornered maple leaf pigment, and belongs to the technical field of extracting and producing components of Chinese medicinal materials. Background technique [0002] Four-cornered sweetgum leaves are rich in pigments. Natural plant pigments not only have the effect of food coloring, but also have physiological activity and certain pharmacological effects. At present, its anti-cancer, anti-oxidation, and blood sugar-lowering effects are being studied with The depth has been widely recognized by people. With the development of society and the advancement of science and technology, people's interest in pure natural food is increasing day by day, and the share of natural pigments in the market is also increasing rapidly. However, limited by the technical level, the extraction rate of natural pigments is relatively low, and the cost is relatively high, so industrialized production cannot yet be realized....

Claims

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Application Information

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IPC IPC(8): C09B61/00C09B67/54
CPCC09B61/00C09B67/0096
Inventor 张博阳李彩文辛海尚海瑶
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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