Extraction method of total flavonoids in bitter herbs

An extraction method and a technology of total flavonoids, which are applied in the direction of pharmaceutical formulas, medical preparations containing active ingredients, plant raw materials, etc., can solve the problems of expensive equipment, complicated extraction process, and large pollution, and achieve no harmful substance residue and high extraction rate. High, easy-to-operate effect

Inactive Publication Date: 2014-12-03
NANJING BIAOKE BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the current traditional plant extraction method has expensive equipment, low efficiency of extracting natural plant active ingredients, heavy pollution, high cost, and complicated extraction process, so that the value of natural medicinal plants cannot be well utilized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: Take fresh wild bitter vegetable as raw material, clean it with clear water, pulverize it, get 2kg and place it in the extraction equipment, and add 65% ethanol with a solid-liquid ratio of 1:25, the ultrasonic extraction time is 70min, and the extraction temperature The temperature is 70°C, the ultrasonic extraction power is 65KHz, cooled and suction filtered, the filter residue is ultrasonically extracted twice, the filtrates are combined for three times, concentrated under reduced pressure to 1 / 3 of the original volume, and moved to a separatory funnel, adding the concentrated solution, The volume ratio of petroleum ether and ethyl acetate is 1:3:3 for extraction, the lower layer is removed, the reagent is recovered, and the total flavonoids of bitter cabbage are obtained by freeze-drying. After UV detection, the content of total flavonoids in the extract was 75%.

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PUM

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Abstract

The invention relates to an extraction method of total flavonoids in bitter herbs and in particular relates to a method combining ultrasonic waves with ethanol extraction. The extraction method comprises the following processing steps: drying fresh wild bitter herbs, grinding the bitter herbs with a grinder, extracting the bitter herbs by an ultrasonic method, mixing filtrates, carrying out concentration at reduced pressure, extracting and drying. The extraction method is simple in process and high in extraction efficiency, saves energy, is low in cost and is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to an extraction technology of active ingredients in natural medicinal plants, in particular to a method for extracting active ingredients in natural plants by combining ultrasonic waves and alcohol extraction. Background technique [0002] Bitter cabbage is an annual or biennial herb of the Compositae family, also known as mountain bitter cabbage. It is mainly distributed in the northern, eastern and southern regions of China. It grows on mountain grass slopes, roadsides and fields, and has a wide range of materials. Bitter herbs, taste: pungent, bitter, cold in nature. Efficacy: clearing heat and detoxifying, cooling blood, dispelling blood stasis and relieving pain, can be used to treat intestinal abscess, pulmonary abscess with high fever, cough and spit pus and blood, heat toxin sore furuncle, sore furuncle pain and swelling, chest and abdomen pain, appendicitis, enteritis, dysentery, postpartum abdominal pain , Dysmenorrhe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/28
Inventor 张金芳杨存
Owner NANJING BIAOKE BIO TECH
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