Method for extracting active ingredients from hibiscus sabdariffa calyx

A technology for roselle calyx and active ingredients, which is applied in the directions of medical preparations containing active ingredients, plant/algae/fungus/moss ingredients, pharmaceutical formulations, etc. The effect of high yield

CN102813686AActive Publication Date: 2012-12-12JIANGSU UNIV

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Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: JIANGSU UNIV
Publication Date: 2012-12-12

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Abstract

The present invention relates to a method for extracting active ingredients from hibiscus sabdariffa calyx, and belongs to the technical field of extraction of active ingredients from hibiscus sabdariffa. The extraction process comprises: crushing dried hibiscus sabdariffa calyx; filling the crushed calyx in a reaction kettle liner of a subcritical water extraction tank; adding water with a pH value of 1.0-3.0 according to a liquid-solid ratio of 15:1-25:1, wherein an extraction pressure is 5-10 MPa, an extraction temperature is 110-150 DEG C, and an extraction time is 20-50 min; filtering; carrying out reduced pressure concentration on the resulting filtrate to a dry state; adding water to dissolve; and carrying out freeze drying to obtain the active ingredient extract of the hibiscus sabdariffa calyx. Compared with the traditional water extraction method and the 30% ethanol extraction method, the method of the present invention has advantages of short extraction time, high extract yield, green environment protection, and no pollution.

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Description

technical field

[0001] The invention relates to a new method and process for extracting effective components in roselle calyx, in particular to a method and process for extracting effective components in roselle calyx with subcritical water. Background technique

[0002] Roselle ( Hibiscus sabdariffa L) Also known as roselle, roselle, mountain eggplant, etc., Malvaceae hibiscus is an annual herb or perennial shrub, which is a traditional medicinal and edible plant. Roselle grows in tropical and subtropical regions. It is native to West Africa, India, and Malaysia. It has been planted for hundreds of years. It was introduced to Taiwan in 1910. Now it has grown widely in Guangdong, Guangxi, Fujian, Taiwan, and Yunnan. area planted. Traditional medicine believes that roselle calyx has the effects of clearing heat, quenching thirst and lowering blood pressure. Modern medical research has proved that roselle calyx has pharmacological effects such as anti-oxidation, anti-tumor, ...

Claims

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