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Extraction and preparation method of polysaccharide in long red dates, polysaccharide and application thereof

A technology of jujube polysaccharide and polysaccharide, which is applied in the directions of medical preparations, pharmaceutical formulations, and plant raw materials containing active ingredients to achieve high-efficiency medical and health care functions, reduce the use of organic solvents, and efficiently extract the effects.

Active Publication Date: 2020-08-04
ZAOZHUANG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

The present invention optimizes the semi-bionic extraction process of jujube by uniform design

Method used

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  • Extraction and preparation method of polysaccharide in long red dates, polysaccharide and application thereof
  • Extraction and preparation method of polysaccharide in long red dates, polysaccharide and application thereof
  • Extraction and preparation method of polysaccharide in long red dates, polysaccharide and application thereof

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preparation example Construction

[0037] Such as figure 1 As shown, the method for extracting and preparing polysaccharides from long jujube provided by the embodiments of the present invention comprises the following steps:

[0038] S101: Weigh 20 g of the processed red jujube medicinal material, heat and reflux with petroleum ether for 1 hour;

[0039] S102: continuous reflux extraction in water with different pHs under normal pressure for three times;

[0040] S103: Centrifuge the extract, combine the supernatant and concentrate to 100mL to obtain the polysaccharide semi-bionic extract;

[0041] S104: Add 5 times the amount of 95% ethanol, refrigerate at 0-4°C for 12 hours, centrifuge and precipitate to obtain crude polysaccharide;

[0042] S105: Wash with a small amount of absolute ethanol, acetone and ether for 3 times;

[0043] S106: Dissolving the washed jujube polysaccharide in distilled water, filtering out the insoluble matter, extracting three times by Sevage method (chloroform: n-butanol = 4:1) ...

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Abstract

The invention belongs to the technical field of polysaccharide extraction, and discloses an extraction preparation method of polysaccharide in long red dates and an application thereof, which comprises the following steps: weighing a treated long red date medicinal material, and degreasing with petroleum ether; carrying out continuous reflux extraction for three times in water with different pH values under normal pressure; centrifuging an extracting solution, combining supernatants, and concentrating to obtain a long red date polysaccharide extracting solution; adding ethanol, refrigerating,centrifuging and precipitating to obtain crude polysaccharide; continuously pumping and washing with absolute ethyl alcohol, acetone and diethyl ether; dissolving the crude polysaccharide in distilledwater, filtering out insoluble substances, and washing for three times by a Sevage method according to a ratio of 1: 5 to obtain deproteinized polysaccharide; adding activated carbon, oscillating atconstant temperature, and filtering to obtain a decolorized polysaccharide extracting solution; and carrying out vacuum concentration and vacuum freeze drying to obtain the refined long red date polysaccharide. The method can simulate the gastrointestinal tract environment of the human body, more efficiently extract polysaccharide substances in the long red dates, is economical and applicable, andcan more efficiently play the medical and health-care functions of the polysaccharide components in the long red dates.

Description

technical field [0001] The invention belongs to the technical field of polysaccharide extraction, and in particular relates to a method for extracting and preparing polysaccharides from jujube, polysaccharides and applications. Background technique [0002] At present, Changjujube is the fruit of Zizyphus jujube Mill. in the family Rhamnaceae, and has a long history of cultivation in my country. It is also an excellent cultivar, mainly distributed in Shandong, Hebei and other places, especially in Zaozhuang City, Shandong Province, and has become the main cultivar for local jujube planting. Long jujube is often regarded by people as a high-quality tonic that is rich in nutrition, delicious and sweet, and integrates Qi, blood, tranquilization and health care. Moreover, it contains various important nutrients such as carbohydrates, vitamins, amino acids, minerals, crude fiber, etc., which can be used as food or medicine. And there have long been records about the medicinal u...

Claims

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Application Information

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IPC IPC(8): C08B37/00A61K31/715A61P37/04A61P35/00A61P31/12A61P39/06A61P31/00A61P1/04A61P17/02A61K36/725
CPCC08B37/0003A61K31/715A61P37/04A61P35/00A61P31/12A61P39/06A61P31/00A61P1/04A61P17/02A61K36/725
Inventor 郑丹丹王京龙
Owner ZAOZHUANG UNIV
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