A kind of method for extracting extract of hollyhock flower

A technology for extraction of hollyhock flowers and extracts, which is applied in the field of extraction of hollyhock flower extracts, achieving the effect of high content and short time
CN109432148BActive Publication Date: 2021-07-30JIANGSU AGRI ANIMAL HUSBANDRY VOCATIONAL COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU AGRI ANIMAL HUSBANDRY VOCATIONAL COLLEGE
Publication Date
2021-07-30

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Abstract

The invention discloses a method for extracting extracts from hollyhock flowers, which comprises the following steps: heating and refluxing the hollyhock flowers with a solution having a concentration of 50-80% methanol for 2-3 times, each time for 0.5-1 hour to obtain an extract; The solution is concentrated under reduced pressure at a temperature lower than 60°C to an extract with a specific gravity of 1.13-1.16g / ml, adding 2-4 times the volume of water of the extract, centrifuging to precipitate, and taking the supernatant; The supernatant is passed through a macroporous adsorption resin column, and after 2-3 column volumes are used for elution with water, 3 column volumes are eluted with 20% methanol solution, and 1 column volume is eluted with 50-70% methanol. Concentrate the eluent; spray dry it. The total flavonoid content of the hollyhock flower extract obtained by the method of the invention reaches 70%-90% by weight, and the active ingredients hyperoside, quercetin and isoquercetin can be extracted simultaneously, and the time is short and the content is high.
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Description

technical field

[0001] The invention belongs to the field of pharmacy, and in particular relates to a method for extracting extracts from hollyhock flowers. Background technique

[0002] The flower of hollyhock (Abelmoschlmanihot L medic) is the dried flower of hollyhock, a plant of Malvaceae. There are longitudinal veins on the surface, radial, light brown, shallow wavy edges, more shrunken and broken, and the complete petals are triangular, broad and obovate, with longitudinal veins on the surface, radial, light brown, shallow wavy edges; the inner base is purple-brown . Stamens numerous, united into tubular, anthers subsessile. Stigma purple-black, spoon-shaped, 5-lobed. The gas is slightly fragrant, and the taste is sweet and light.

[0003] It is sweet and cold in nature, non-toxic, and has the effects of clearing away dampness and heat, reducing inflammation and detoxification. It can be taken orally to treat stranguria and edema; it can be used externally to treat...

Claims

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