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A method for improving the leaching rate of polysaccharides in Dendrobium sheathing

A technology of dendrobium sheath and leaching rate, which is applied in the field of traditional Chinese medicine preparation, can solve the problems of large solvent consumption, low polysaccharide extraction rate, complicated operation procedures, etc., and achieve the effects of stable product quality, enhanced health care function, and hygienic safety

Active Publication Date: 2018-02-06
YUNNAN MINZU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These preparation methods are mostly conventional methods, with low polysaccharide extraction rate, large solvent consumption, complicated operation procedures, high energy consumption and time-consuming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] (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.

[0031] (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.

[0032] (3) Preparation of the test solution: Take about 0.3g of the powder of this...

Embodiment 1

[0043] A, clean the fresh strip of dendrobium dendrobium sheath, and dry;

[0044] B, the fresh strip of dendrobium sheath of A step is placed in drying box, is dried at 95 ℃ for 3.7 hours, makes its moisture content be 20%, is cut into the short strip of 3.7 centimeters;

[0045] C, the dendrobium sheath sheath short strips of step B are obtained by microwave puffing and breaking the wall; the process conditions of the microwave puffing and breaking are power 650w, and the time of expanding and breaking the wall is 37 seconds, so that the puffed and broken product is obtained;

[0046] D. After cooling the puffed and broken wall product in step C for 15 minutes, it is crushed (passed through a 200-mesh sieve) and packed.

[0047] E. Add 60 ml of water to the Dendrobium sheath 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;

[0048] F....

Embodiment 2

[0051] A, clean the fresh strip of dendrobium dendrobium sheath, and dry;

[0052] B, placing the fresh strips of Dendrobium sheathing in step A in a drying box, drying at 90°C for 4.0 hours, making its moisture content 25%, and cutting into short strips of 3.5 cm;

[0053]C, the dendrobium sheath sheath short strip of step B is obtained by microwave puffing and breaking the wall; the process condition of the microwave puffing and breaking is a power of 600w, and the time of expanding and breaking the wall is 40 seconds, so that the puffed and broken product is obtained;

[0054] D. After cooling the puffed broken wall product in step C for 15 minutes, it is crushed (passed through a 300-mesh sieve) and packaged.

[0055] E. Add 80 ml of water to the Dendrobium sheath 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;

[0056] F. After d...

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Abstract

The invention discloses a method for increasing the leaching rate of polysaccharide components in Dendrobium sheathes, specifically cleaning fresh dendrobium sheaths as a raw material, drying them, and cutting them into strips; puffing and breaking the walls, crushing them through a 100-300 mesh sieve to obtain the dendrobium sheaths Dendrobium sheath extract pre-material, add 4-8 times the weight of water to the pre-extraction material, extract 3-4 times at 80-100 ° C, each time for 1-3 hours, combine the extracts, filter and concentrate to obtain a relative density of 1.1-1.3 Extraction: the extracted extract c is dried, pulverized and sieved to obtain the target extract. The invention has low investment in production equipment, simple process operation, easy to achieve conditions, low energy consumption in the preparation process, low cost, convenient processing, non-toxic and harmless reagents, safety and environmental protection; the polysaccharide component in the prepared Dendrobium sheath product is easy Leaching improves the leaching rate of polysaccharides in Dendrobium nobile.

Description

technical field [0001] The invention belongs to the technical field of preparation of traditional Chinese medicines, and in particular relates to a method for increasing the extraction rate of polysaccharide components in dendrobium sheathes. Background technique [0002] Dendrobium officinale ( Dendrobium denneanum Kerr.) is a variant of the Dendrobium genus Dendrobium in the orchid family. It is sweet in taste, slightly cold, and returns to the stomach and kidney meridian. It is used for syndromes such as yin injury and deficiency of body fluid, dry mouth and polydipsia, asthenia heat after illness. The chemical components of Dendrobium sheath are mainly polysaccharides, bibenzyls, sesquiterpenes, coumarins, steroids, etc., among which polysaccharides are the main components. Polysaccharides have the functions of enhancing the body's immunity, lowering blood sugar, anti-tumor, anti-aging, and anti-oxidation. [0003] At present, there are relevant literatures related t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00
Inventor 黄相中彭金辉郭俊明李婷婷
Owner YUNNAN MINZU UNIV
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