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A method for industrially extracting marigold flavonoids and its marigold flavonoids

A technology of marigold flavonoids and marigold flowers, which is applied in the directions of pharmaceutical formulations, medical preparations containing active ingredients, allergic diseases, etc., can solve the problems of high cost and complicated technological process, and achieves low cost, high extraction efficiency and good quality. The effect of antioxidant efficacy

Active Publication Date: 2021-07-27
CHENGUANG BIOTECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there is a scheme to utilize marigold flavonoids in marigold flower meal, but there are problems of complicated process and high cost in the process of industrial production

Method used

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  • A method for industrially extracting marigold flavonoids and its marigold flavonoids

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The present embodiment relates to a method for extracting marigold flavonoids, comprising the following steps:

[0045] 1) Take 50 kg of marigold flower pulp, add 350 L of methanol solution with a concentration of 90%, and extract by countercurrent extraction for 4 hours at 60°C.

[0046] 2) Concentrate the extract under pressure at a vacuum degree of 0.07 ± 0.002Mpa and a temperature of 70° C. After centrifuging the concentrated extract, take the supernatant. After testing, the solid content in the supernatant is 10 %, at this time, the volume of the concentrated solution is 35L;

[0047] 3) plate-and-frame filtration is carried out to the concentrated solution, the concentrated solution is passed through a 300-mesh filter cloth, the pressure during the filtration is 0.5Mpa, clear liquid and filter cake are collected, and the filter cake is dried to obtain Longevity chrysanthemum flavonoids.

Embodiment 2

[0049] The present embodiment relates to a method for extracting marigold flavonoids, comprising the following steps:

[0050] 1) Take 50 kg of marigold flower pulp, add 500 L of methanol solution with a concentration of 80%, and extract by countercurrent extraction for 2 hours at 60°C.

[0051] 2) Concentrate the extract under pressure at a vacuum degree of 0.07 ± 0.002Mpa and a temperature of 90° C. Concentrate until the concentrated extract is centrifuged and take the supernatant. After testing, the solid content in the supernatant is determined. is 30%, at this time, the volume of the concentrated solution is 40L;

[0052] 3) plate-and-frame filtration is performed on the concentrated solution, the concentrated solution is passed through a filter cloth with a pore size of 500 meshes, and the pressure during the filtration is 0.3 Mpa, and the filter cake is dried to obtain marigold flavonoids.

Embodiment 3

[0054]The present embodiment relates to the method for extracting water-soluble flavonoids of the present invention, comprising the following steps:

[0055] Take the clear liquid obtained in step 3) of Example 1, load the obtained clear liquid to macroporous resin LX-158, control the flow rate 1BV / h, utilize 75% ethanol solution to analyze the resin, and concentrate and dry the analyzed liquid to obtain water-soluble longevity. chrysanthemum polyphenols.

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Abstract

The invention relates to a method for industrially extracting marigold flavonoids. The main steps are: using methanol solution to extract marigold flower dregs, concentrating the extract until all marigold flavonoids are precipitated, performing plate and frame filtration to obtain clear liquid and filter cake drying the filter cake to obtain marigold flavonoids; the criterion for judging that the marigold flavonoids are all precipitated is that the solid content in the clear liquid is 5-30%. The method of the invention has simple steps and low cost, is suitable for large-scale industrial production, and the extracted marigold flavonoids have high purity, various biological activities and high industrial application value.

Description

technical field [0001] The invention relates to the technical field of plant functional component extraction, in particular to a method for extracting flavonoids from marigold. Background technique [0002] Marigold is one of the main potted herbs cultivated in my country, and is widely used in indoor and outdoor environments. With the development of the nutrition and health industry, the international demand for marigold is increasing. Marigold not only has ornamental value, but also has good medicinal value. The main components of its pharmacological effect are flavonoids, carotenoids, terpenes, glycosides, essential oils and other components. [0003] Marigold flowers are the main source of lutein. After lutein is extracted, a large amount of marigold slag is discarded as industrial waste or used as feed. This has a certain impact on the environment, and it also causes a lot of waste of resources. Studies have reported that marigold flowers are rich in flavonoids, such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/28A61P39/06A61P29/00A61P37/08A61P9/12A61P9/06A61P35/00
CPCA61K36/28A61K2236/333A61K2236/51A61K2236/53A61K2236/55A61P9/06A61P9/12A61P29/00A61P35/00A61P37/08A61P39/06
Inventor 高伟连运河吴迪王欢欢冀云武
Owner CHENGUANG BIOTECH GRP CO LTD