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A method for improving the extraction rate of polysaccharides in dendrobium dendrobium

A technology of dendrobium dendrobium and leaching rate, which is applied in the field of traditional Chinese medicine preparation, can solve the problems of low bioavailability of active ingredients, achieve the effects of being easy to digest and absorb, easy to absorb by human body, and improving digestion and absorption rate

Active Publication Date: 2018-04-13
上海米塔星科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these products are subject to certain restrictions in use, and the bioavailability of active ingredients is relatively low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] (1) Preparation of polysaccharide reference substance solution: Take an appropriate amount of anhydrous glucose reference substance, weigh it accurately, add water to make a glucose solution containing 90 μg per 1 ml, and obtain it.

[0033] (2) Preparation of the standard curve: Precisely measure 0.2ml, 0.4ml, 0.6ml, 0.8ml, 1.0ml of the reference solution, put them in 10ml test tubes with stoppers, and add water to make up to 1.0ml. Accurately add 1ml of 5% phenol solution (prepared for use), shake well, then precisely add 5ml of sulfuric acid, shake well, heat in boiling water bath towel for 20 minutes, take it out, cool in ice bath for 5 minutes, use the corresponding reagent as a blank, use ultraviolet light Visible spectrophotometry, the absorbance is measured at a wavelength of 488nm, with the absorbance as the ordinate and the concentration as the abscissa, draw a standard curve.

[0034] (3) Preparation of the test solution: Take about 0.3g of the powder of this...

Embodiment 1

[0045] A, fresh strips of Dendrobium dendrobii are cleaned and dried;

[0046] B, the purple dendrobium fresh bar of step A is placed in drying box, dry at 105 ℃, adjust moisture, make its moisture content be 20%, be cut into the short strip of 3.5 centimetres;

[0047] C, the purple dendrobium dendrobium short strip of B step is obtained with microwave puffed broken wall; The technological condition of described microwave puffed broken wall is power 700 watts, and puffed broken wall time is 35 seconds, obtains puffed broken wall product;

[0048] D. After cooling the puffed broken wall product in step C for 10 minutes, it is crushed (passed through a 200-mesh sieve) and packed.

[0049] E. Add 60 milliliters of water to the Dendrobium dendrobii powder (10 grams) obtained in step D and extract at 93° C. for 4 times, each time for 2 hours, combine the extracts, filter and concentrate to obtain an extract with a relative density of 1.2;

[0050] F. After drying the extract obta...

Embodiment 2

[0053] A, fresh strips of Dendrobium dendrobii are cleaned and dried;

[0054] B, the purple dendrobium fresh bar of A step is placed in drying box, dry at 100 ℃, regulate moisture, make its moisture content be 30%, be cut into the short strip of 4.0 centimetres;

[0055] C, the dendrobium dendrobii short strips of step B are obtained by microwave puffing and breaking; the process conditions of the microwave puffing and breaking are power 650 watts, and the time of expanding and breaking is 40 seconds, so that the puffed and broken products are obtained;

[0056] D. After cooling the puffed broken wall product in step C for 13 minutes, it is crushed (passed through a 300-mesh sieve) and packed.

[0057] E. Add 80 milliliters of water to the Dendrobium dendrobii powder (10 grams) obtained in step D and extract at 100° C. for 3 times, each time for 3 hours, combine the extracts, filter and concentrate to obtain an extract with a relative density of 1.3;

[0058] F. After drying...

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PUM

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Abstract

The invention discloses a method for improving the leaching rate of polysaccharide in purple dendrobium. The method comprises the steps of pretreatment, extraction and post-treatment, and particularly comprises the following steps: cleaning and airing the raw material (fresh purple dendrobium strips), placing the cleaned and aired raw material at 100-110 DEG C to be dried for 3.0-3.5 h till the water content is 15-30 percent, and cutting the dried raw material into short strips a of 4.0-5.0 cm; crushing the short strips a subjected to puffing and wall breaking, sieving with a 100 to 300-mesh sieve to obtain a purple dendrobium not-extracted material b, adding the purple dendrobium not-extracted material b into water of which the weight ratio is 4-8 times of that of the purple dendrobium not-extracted material b, then extracting 3-4 times at 80-100 DEG C, extracting for 1-3 h each time, merging the extracting solutions, filtering and concentrating to obtain an extract c with the relative density of 1.1-1.3; drying, crushing and sieving the extracted extract c to obtain a target extract. The method has the advantages that the investment on production equipment is low, the process operation is simple, the conditions can be easily reached, the energy consumption during preparation and the cost are low, the processing is convenient, the used reagents are nontoxic and harmless, and high safety and environment friendliness are achieved; polysaccharide in a prepared purple dendrobium product can be easily leached, so that the leaching rate of polysaccharide in purple dendrobium is improved.

Description

technical field [0001] The invention belongs to the technical field of traditional Chinese medicine preparation, and in particular relates to a method for increasing the leaching rate of polysaccharide components in dendrobium dendrobii. Background technique [0002] Dendrobium dendrobium is the dry stem of Dendrobium devonianum Paxt., a dicotyledonous herb orchid. Dendrobium purple-skinned Dendrobium has jointed stems, slightly fleshy, leathery leaves, and alternates. Because the surface of the stems is mostly purple after removing the leaf sheath film in the autumn and winter harvest season, the purple color is more obvious when it grows in places with strong sunlight, so it is commonly known as Dendrobium purple-skinned Dendrobium or Purple Piran. The chemical components of Dendrobium are mainly polysaccharides, alkaloids, phenanthrenes, bibenzyls, phenolic acids and flavonoids, and also contain a small amount of trace elements and amino acids, which can be used to treat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00
CPCC08B37/00C08B37/0003
Inventor 黄相中彭金辉郭俊明李艳红田凯李婷婷
Owner 上海米塔星科技服务有限公司
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