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Method for efficiently extracting anthocyanin

An extraction method, anthocyanin technology, is applied in the field of efficient anthocyanin extraction, which can solve the problems of cumbersome steps, production without industrial methods, and long time consumption, and achieve the effects of simple raw materials, shortened extraction time, and increased leaching amount

Inactive Publication Date: 2017-08-01
林燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method, anthocyanin extracts with a purity greater than 90% can be obtained, but the steps of this method are cumbersome, time-consuming and do not use industrial methods to produce

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-efficiency extraction method for anthocyanins, comprising the following steps: (1) After washing the grape skins, drying them naturally, drying them at 60°C for 12 hours, using a traditional Chinese medicinal material grinder to crush the grape skins and passing them through a 60-mesh sieve Finally, the sieved medicinal powder is further crushed into a powder with a particle size of less than 350 nanometers; (2) After mixing choline chloride and urea at a molar ratio of 1:2, heat at 500 rpm and 80°C for 1.5 hours , to form a clear and uniform deep eutectic reagent; (3) After mixing the deep eutectic reagent and water at a volume ratio of 1:1, mix the nanoscale grape skin powder with the deep eutectic reagent-water mixture by 1: After mixing at a mass volume ratio of 8, filter under 350W ultrasonic power, 200W microwave power and 40°C for 20 minutes to obtain the filtrate; (4) Add 8% dipotassium hydrogen phosphate to the filtrate and vortex for 20s Centrifuge to f...

Embodiment 2

[0025] A high-efficiency extraction method for anthocyanins, comprising the following steps: (1) washing perilla leaves, drying them naturally at 60°C for 10 hours, using a traditional Chinese medicinal material grinder to crush the perilla leaves and passing them for 60 After mesh sieving, the sieved medicinal powder is further crushed into a powder with a particle size of less than 350 nanometers; (2) After mixing betaine and urea at a molar ratio of 1:2, heat at 500rpm and 80°C for 2 hours , to form a clear and uniform deep eutectic reagent; (3) After mixing the deep eutectic reagent and water at a volume ratio of 1:0.5, mix the nanoscale grape skin powder with the deep eutectic reagent-water mixture by 1: After mixing at a mass volume ratio of 10, filter under 300W ultrasonic power, 150W microwave power and 40°C for 30 minutes to obtain the filtrate; (4) add 10% potassium citrate to the filtrate, vortex for 20s, and centrifuge to form Two-water phase, take out the lower ph...

Embodiment 3

[0027] A high-efficiency extraction method for anthocyanins, comprising the following steps: (1) Washing the leaves of Maple ingots, drying them naturally, drying them at 55°C for 10 hours, crushing the leaves of Maple ingots with a Chinese herbal medicine grinder, and passing them through 60 meshes After sieving, the sifted medicinal powder is further crushed into a powder with a particle size of less than 350 nanometers; (2) After mixing L-carnitine and glycerin at a molar ratio of 1:2, heat at 400 rpm and 60°C for 1.5 hours Finally, a clear and uniform deep eutectic reagent is formed; (3) After mixing the deep eutectic reagent and water at a volume ratio of 1:1.2, mix the nanoscale grape skin powder with the deep eutectic reagent-water mixture by 1 : The mass volume ratio of 8 is mixed and filtered under the conditions of 300W ultrasonic power, 200W microwave power and 40°C for 30 minutes to obtain the filtrate; (4) Add 10% potassium sulfate to the filtrate, vortex for 20s a...

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Abstract

The invention discloses a method for efficiently extracting anthocyanin. The method comprises the following steps: first crushing plant extract portion into nanoscale powder, processing the powder by utilizing an eutectic reagent microwave-ultrasonic technology, and filtering to obtain filtrate; adding a given amount of salt solution into the filtrate, vortex centrifuging to form an aqueous two phase, after a lower phase is separated, adding methanol into the filtrate, vortex centrifuging, separating the methanol upper phase, evaporating the solvent in the methanol upper phase to dry, and obtaining an extract rich in anthocanin. By adopting the method to extract the anthocyanin, not only can the extract amount of active ingredients be significantly increased and the extraction efficiency be increased, but also the consumption of organic solvent can be reduced, and environmental friendliness can be realized. In addition, the method of the invention can shorten the extraction time and reduce the cost. The anthocyanin obtained by the method does not need to be subsequently purified and can be directly used as a natural developing agent and an antioxidant to be applied to cosmetics such as lipsticks, lip cream, nail polish and eye shadow.

Description

technical field [0001] The invention relates to a method for extracting active ingredients of natural pigments in cosmetics, more specifically, the invention relates to a method for extracting anthocyanins with high efficiency. Background technique [0002] Since the 20th century, the cosmetics industry has developed rapidly. Color is an important aspect of the nature of many cosmetics. The first feeling consumers have when choosing cosmetics is to judge whether they like it or not through color, and it has an important impact on the final purchase. Traditional cosmetics are mostly synthetic pigments, but the safety of synthetic pigments has been widely questioned, and the number of synthetic pigments allowed to be used has also been greatly reduced. With government legislation restricting synthetic colors and increasing consumer safety awareness, interest in natural colors is growing. [0003] Anthocyanins are the most widely distributed water-soluble pigments in nature, ...

Claims

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Application Information

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IPC IPC(8): C07H1/08C07H17/065
CPCC07H1/08C07H17/065
Inventor 林燕
Owner 林燕
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