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Pretreatment method for extracting plant effective components

A plant active ingredient and pretreatment technology, applied to medical preparations containing active ingredients, plant/algae/fungus/moss ingredients, plant raw materials, etc., can solve high energy consumption costs, organic solvent solvent explosion, plant cell wall rupture and other problems, to achieve the effect of short processing time, large processing capacity and high utilization rate

Inactive Publication Date: 2010-12-29
JIANGNAN UNIV
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AI Technical Summary

Problems solved by technology

[0008] The applicant of the present invention aims at the above-mentioned limited microwave penetration depth, low microwave utilization rate, high energy cost and high energy consumption cost in the current industrial application of microwave-assisted extraction. Radiation has problems such as the possibility of explosion of organic solvents, and improved research has been carried out, and another pretreatment method for the extraction of plant active ingredients is proposed. The cell wall is effectively broken, and after pretreatment, the subsequent extraction of plant active ingredients is carried out according to conventional methods, so that the extraction of plant active ingredients has a higher yield

Method used

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  • Pretreatment method for extracting plant effective components

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Effect test

Embodiment 1

[0020] Embodiment 1: Extraction of Ganoderma lucidum polysaccharide.

[0021] Grind the dried Ganoderma lucidum into 20-50 meshes, weigh 100g with an electronic balance, infiltrate water with a weight of 500g, stir well, infiltrate for 1 hour, vacuum microwave radiation for 7 minutes, and the power density of the microwave is 2.5-3.0 watts / gram (w / g), vacuum degree 75Kpa; Ganoderma lucidum after vacuum microwave irradiation immediately enters a single-screw extruder, and the compression ratio of the screw is 1:3; subsequent extraction is performed by Soxhlet method, heated and refluxed at 80°C for 2.5 hours (h), Ganoderma lucidum polysaccharide The extraction yield is 1.753%.

[0022] The present invention adds follow-up existing Soxhlet method to extract and the comparison of using existing Soxhlet method to extract separately and result is shown in Table 1 (the raw material is identical, experiment repeats 3 times and gets mean value), as can be seen from the data in Table ...

Embodiment 2

Embodiment 3

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Abstract

The invention relates to a pretreatment method for extracting plant effective components. Before extraction, wet basis plant materials are radiated by vacuum microwaves first, and then mechanical extrusion force and shearing force are repeatedly applied to plant materials after the radiation by vacuum microwaves by a screw extruder. After the pretreatment, the plant effective components of the plant materials are extracted subsequently according to a conventional method so that the extraction of the plant effective components has higher yield. The method also has the advantages of high microwave utilization rate, no damage to target effective components, short processing time and low energy consumption, can avoid an explosion accident of an organic solvent because the organic solvent is not used in the pretreatment of plants, and is suitable to be applied to industrial production.

Description

technical field [0001] The invention relates to a method for extracting plant active ingredients, in particular to a method for pretreating plants before extracting plant active ingredients. The plant cell wall is broken through pretreatment, so that the extraction of plant active ingredients has a better yield. Background technique [0002] my country has a vast territory, superior geographical and climatic conditions, and contains extremely rich natural plant resources. There are more than 30,000 species of higher plants alone, including 11,146 species of medicinal plants, which are the largest in the world in terms of variety and quantity. The foundation of Chinese herbal medicine for thousands of years. Although my country is a large country in the production of herbal medicines, it is not a powerful country in the production of herbal medicines. At present, my country's botanical medicines account for less than 5% of the world's botanical medicine market, most of which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/00
Inventor 崔政伟
Owner JIANGNAN UNIV
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