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Method for extracting dendrobium polysaccharides from Dendrobium denneanum

A technology for dendrobium polysaccharides and dendrobium polysaccharides is applied in the field of extracting dendrobium polysaccharides, and can solve the problems of large solvent consumption, complicated operation procedures, low extraction rate and the like

Inactive Publication Date: 2020-03-20
贵州天诚农业科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the extraction of polysaccharides in Dendrobium sheath is conventional soaking and other methods, the extraction rate is low, the solvent consumption is large, and the operation procedure is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for extracting dendrobium polysaccharides from dendrobium sheathes, comprising the following steps:

[0021] a. Fresh strip treatment: remove impurities from the freshly harvested Dendrobium sheath, wash and dry, cut into 4cm sections, and soak in softener for 1.5h;

[0022] b. Extraction: Grind the Dendrobium sheathes in step a. together with the softener into a dendrobium slurry, add twice the weight of acetone solution for extraction for 7 hours, and reclaim the organic solvent by distillation under reduced pressure, then add 6% antioxidant to obtain the extraction liquid;

[0023] c. Post-treatment: add miscellaneous cells and adsorbents to the extract, and stir at 110rpm for 1 hour to obtain a treatment solution;

[0024] d. Refining: filter the treatment solution to take the filtrate, evaporate and concentrate to make an extract, then further vacuum dry, pulverize and grind to obtain the dendrobium polysaccharide;

[0025] Further, the softening agent c...

Embodiment 2

[0032] A method for extracting dendrobium polysaccharides from dendrobium sheathes, comprising the following steps:

[0033] a. Fresh bar treatment: remove impurities from the freshly harvested Dendrobium sheath, wash and dry, cut into 5cm segments, and soak in softener for 2 hours;

[0034] b. Extraction: Grind the Dendrobium sheathes in step a. together with the softening agent into a dendrobium slurry, add twice the weight of acetone solution for extraction for 8 hours, and reclaim the organic solvent by distillation under reduced pressure, then add 8% antioxidant to obtain the extraction liquid;

[0035] c. Post-treatment: add miscellaneous cells and adsorbents to the extract, and stir at 120rpm for 1.5h to obtain a treatment solution;

[0036] d. Refining: filter the treatment solution to take the filtrate, evaporate and concentrate to make an extract, then further vacuum dry, pulverize and grind to obtain the dendrobium polysaccharide;

[0037] Further, the softening a...

Embodiment 3

[0044] A method for extracting dendrobium polysaccharides from dendrobium sheathes, comprising the following steps:

[0045] a. Fresh strip treatment: remove impurities from the freshly harvested Dendrobium sheath, wash and dry, cut into 3cm sections, and soak in softener for 1h;

[0046] b. Extraction: Grind the Dendrobium sheathes in step a. together with the softening agent into a dendrobium slurry, add twice the weight of acetone solution for leaching for 6 hours, and reclaim the organic solvent by distillation under reduced pressure, then add 5% antioxidant to obtain the extraction liquid;

[0047] c. Post-treatment: add miscellaneous cells and adsorbents to the extract, and stir at a rate of 90 rpm for 1 hour to obtain a treatment solution;

[0048] d. Refining: filter the treatment solution to take the filtrate, evaporate and concentrate to make an extract, then further vacuum dry, pulverize and grind to obtain the dendrobium polysaccharide;

[0049] Further, the soft...

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PUM

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Abstract

The invention belongs to the field of extraction, and particularly relates to a method for extracting dendrobium polysaccharides from Dendrobium denneanum. Dendrobium denneanum is treated by a prepared softener and a prepared antioxidant, so the extraction rate of dendrobium polysaccharides reaches 64.7%; the purity of the dendrobium polysaccharides reaches 93.1% through treatment of miscellaneouscells and the like; so the utilization rate and economic benefits of Dendrobium denneanum are greatly improved.

Description

technical field [0001] The invention belongs to the field of extraction, and in particular relates to a method for extracting dendrobium polysaccharides from dendrobium sheathes. Background technique [0002] Dendrobium sheathis is a variety of Dendrobium lindenii, a plant of the genus Dendrobium in the family Orchidaceae. It is sweet in taste, slightly cold, and returns to the stomach and kidney meridian. The chemical components of Dendrobium sheath are mainly polysaccharides, bibenzyls, sesquiterpenes, coumarins, etc., among which polysaccharides are the main components. When further processing the polysaccharide extract of Dendrobium officinale, the processing method is an important factor affecting the quality of the reprocessed decoction pieces, and the internal quality and taste of the dendrobium sheath produced by different processing methods are significantly different. At present, the extraction of polysaccharides from Dendrobium nobile is mostly conventional metho...

Claims

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Application Information

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IPC IPC(8): C08B37/00
CPCC08B37/0003
Inventor 周高飞
Owner 贵州天诚农业科技发展有限公司
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