Extraction method of rose anthocyanidin

An extraction method, rose flower technology, applied in the direction of organic chemistry, can solve the problems of high heating temperature, long extraction time, low anthocyanin yield, etc., and achieve the effect of good quality, high purity and simple process

Inactive Publication Date: 2012-05-30
马修廷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the extraction of anthocyanins from roses mostly uses solvent extraction method, the heating temperature is high, the extraction time is long, and the yield of anthocyanins is low.

Method used

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Examples

Experimental program
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Embodiment

[0011] A method for extracting rose anthocyanins, characterized in that: the extraction method uses microwave-assisted extraction of rose anthocyanins, specifically comprising the following steps:

[0012] (1) Fresh rose petals are used, washed and dried, and crushed to 30-50 mesh by a pulverizer;

[0013] (2) Using ethanol solution with a concentration of 30% as the extractant, the microwave treatment time is 40 seconds, the microwave power is 900w, and the solid-liquid ratio is 1:20, and the extraction time is 1 hour, extracted twice, and the extracts are combined;

[0014] (3) After the extraction liquid obtained in step (2) is concentrated and centrifuged, the extraction liquid is concentrated under reduced pressure, and vacuum-dried to obtain rose anthocyanins.

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PUM

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Abstract

The invention relates to a rose, and specifically relates to an extraction method of rose anthocyanidin and belongs to the technical field of chemical separation and purification. The method employs microwave to assist extraction of the rose anthocyanidin and comprises steps of: cleaning, drying and crushing fresh rose petal; using alcoholic solution with a concentration of 30% as an extraction solvent and carrying out microwave processing; centrifuging an extract and concentrating the extract with reduced pressure; drying in vacuum to obtain the rose anthocyanidin. The extraction method has simple technology; the extracted rose anthocyanidin has high purity, good quality and can be widely applied to additive in the industries of food and cosmetics; and the raw material is natural and satisfies requirements of pursuing natural and green food by people.

Description

technical field [0001] The invention relates to a rose flower, in particular to a method for extracting rose anthocyanins, which belongs to the technical field of chemical separation and purification. Background technique [0002] Anthocyanins, also known as anthocyanins, are a class of water-soluble natural pigments that widely exist in plants. They belong to flavonoids and mostly exist in the form of glycosides, also known as anthocyanins. As a natural food coloring, anthocyanins are safe, non-toxic, rich in resources, and have certain nutritional and pharmacological effects. They have great application potential in food, cosmetics, and medicine. Roses are Rosaceae roses, perennial evergreen or deciduous shrubs, roses contain a variety of pigments such as xanthin, anthocyanins, tomato hydrocarbons, flavonoids, and β-carotene. At present, solvent extraction is often used to extract anthocyanins from roses. The heating temperature is high, the extraction time is long, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/62
Inventor 马修廷
Owner 马修廷
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