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Plant extraction and purification process

A plant extraction and process technology, applied in the direction of sugar derivatives, sugar derivatives, organic chemistry, etc., can solve problems such as bitter taste of plant extracts, can not remove the bitter taste well, and achieve environmental friendliness and product safety , the effect of improving the purity

Active Publication Date: 2020-09-04
ZHEJIANG JIANFENG HEALTH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purity of plant extracts is a key indicator for identifying the quality of plant extracts. However, in the process of plant extraction, impurities such as insoluble particles, tannins, and proteins in plants are often extracted, especially the presence of tannins. Affects the purity of plant extracts, and at the same time makes plant extracts have a severe bitter taste, even if additives are added, the bitter taste cannot be removed well; therefore, how to remove impurities in plant extracts and improve the purity of the target is an important issue in industrial production the puzzle

Method used

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  • Plant extraction and purification process
  • Plant extraction and purification process

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Preparation of modified nano titanium dioxide

[0032] Stir and mix 2ml of 3-aminopropyltriethoxysilane and 100ml of absolute ethanol evenly, add 12g of nano-titanium dioxide, stir and react for 20h under airtight conditions, after the completion of the reaction, vacuum dry and grind, then ultrasonically disperse in a volume fraction of 50ml In a 2% glutaraldehyde solution, keep stirring and reacting for 22 hours under airtight conditions, filter and dry, add 100ml 2wt% sulfonated chitosan solution, stir and react at a stirring speed of 800r / min for 3 hours, and the reaction is completed. Filter and dry to obtain modified nano titanium dioxide.

[0033] Preparation of Modified Polyvinyl Alcohol

[0034] Add polyvinyl alcohol to 50ml of 20mM phosphate buffered saline solution, magnetically stir until completely dissolved to obtain a 5mg / mL polyvinyl alcohol solution, add 1.93g of N-hydroxysuccinimide, and continue stirring for 30min under a nitrogen atmosphere, add 2.5...

Embodiment 2

[0047] Preparation of modified nano titanium dioxide

[0048] Stir and mix 2ml of 3-aminopropyltriethoxysilane and 100ml of absolute ethanol evenly, add 15g of nano-titanium dioxide, stir and react for 21h under airtight conditions, after the reaction is completed, vacuum dry, grind, and ultrasonically disperse in a volume fraction of 50ml In a 2% glutaraldehyde solution, keep stirring and reacting for 20h under airtight conditions, filter and dry, add 100ml 2wt% sulfonated chitosan solution, stir and react at a stirring speed of 800r / min for 4h, and the reaction is completed. Filter and dry to obtain modified nano titanium dioxide.

[0049] Preparation of Modified Polyvinyl Alcohol

[0050] Add polyvinyl alcohol to 50ml of 20mM phosphate buffered saline solution, magnetically stir until completely dissolved to obtain a 6mg / mL polyvinyl alcohol solution, add 1.61g of N-hydroxysuccinimide, continue stirring for 30min under a nitrogen atmosphere, add 2.37g dopamine hydrochlori...

Embodiment 3

[0062] Preparation of modified nano titanium dioxide

[0063] Stir and mix 2ml of 3-aminopropyltriethoxysilane and 100ml of absolute ethanol evenly, add 10g of nano-titanium dioxide, stir and react under airtight conditions for 18h, after the reaction is completed, vacuum dry and grind, then ultrasonically disperse in a volume fraction of 50ml In a 2% glutaraldehyde solution, keep stirring and reacting for 21 hours under airtight conditions, add 100ml of 2wt% sulfonated chitosan solution after filtering and drying, stir and react at a stirring speed of 800r / min for 3 hours, and the reaction is completed. Filter and dry to obtain modified nano titanium dioxide.

[0064] Preparation of Modified Polyvinyl Alcohol

[0065] Add polyvinyl alcohol to 50ml of 20mM phosphate buffered saline solution, magnetically stir until completely dissolved to obtain 8mg / mL polyvinyl alcohol solution, add 1.79g of N-hydroxysuccinimide, continue stirring for 30min under nitrogen atmosphere, add 2....

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Abstract

The invention discloses a plant extraction and purification process, and relates to the technical field of plant extraction. The extraction and purification process comprises the following steps: cleaning, drying and crushing a to-be-extracted plant, adding a 50-70% ethanol solution, carrying out alcohol extraction to obtain an alcohol extracting solution, feeding the alcohol extracting solution into a macroporous resin column, after adsorption is completed, washing with deionized water with the volume 1-2 times that of the column to remove impurities, eluting with a 60-70% ethanol solution, collecting eluent, concentrating under reduced pressure to obtain extract with the relative density of 1.10-1.15, adding ethanol into the obtained extract, stirring, fully dissolving, standing, filtering, collecting filtrate to obtain purified extracting solution, and filtering the purified extracting solution with an ultrafiltration membrane to obtain a refined extracting solution. The plant extraction and purification process can effectively separate impurities in an extracting solution so as to improve the purity of active ingredients, and does not use any organic solvent in the whole extraction process, so that the product is safer and more environment-friendly.

Description

technical field [0001] The invention relates to the technical field of plant extraction, in particular to a plant extraction and purification process. Background technique [0002] With the development of our country's economy and the improvement of people's living standards, people are increasingly recognizing the life philosophy of "pursuing nature and advocating nature". The health care effect of natural food has attracted much attention, and the plant extract industry has become the fastest growing domestically in the past 10 years. one of the industries. [0003] Plant extraction mainly extracts active substances in plants. Different active substances have different effects, such as: anti-aging, anti-fatigue, anti-radiation, anti-hypoxia, anti-virus and anti-tumor, anti-peroxidation, etc., and its effect The quality of the effect is often directly related to the purity of the plant extract. The purity of plant extracts is a key indicator for identifying the quality of...

Claims

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Application Information

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IPC IPC(8): B01D61/14B01D67/00B01D69/02B01D69/12B01D71/34B01D71/38C07H1/08C07H15/18
CPCB01D61/145B01D71/38B01D71/34B01D69/02B01D69/12B01D67/0002C07H15/18C07H1/08B01D2325/48B01D2323/39B01D2325/36
Inventor 杨浩赵春全陈安平
Owner ZHEJIANG JIANFENG HEALTH TECH
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