Extraction of polysaccharides from Dendrobium officinale and its instant powder by ultrasonic-assisted negative pressure cavitation

A technology of Dendrobium officinale polysaccharides and negative pressure cavitation, which is applied in the field of purification and extraction of Dendrobium officinale polysaccharides, achieves remarkable effects, uniform particles, and shortened extraction time

Active Publication Date: 2017-06-30
江西九草铁皮石斛科技协同创新有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Dendrobium officinale is a clear and excellent immunomodulator, but there are few products targeting deep processing of Dendrobium officinale polysaccharides on the market.

Method used

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  • Extraction of polysaccharides from Dendrobium officinale and its instant powder by ultrasonic-assisted negative pressure cavitation
  • Extraction of polysaccharides from Dendrobium officinale and its instant powder by ultrasonic-assisted negative pressure cavitation
  • Extraction of polysaccharides from Dendrobium officinale and its instant powder by ultrasonic-assisted negative pressure cavitation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Ultrasonic-assisted negative pressure cavitation method to extract polysaccharides from Dendrobium officinale and the preparation technology of its instant powder are as follows:

[0022] (1) Dendrobium officinale polysaccharide ultrasonic-assisted negative pressure cavitation extraction process: take 100 g of dried stems of Dendrobium officinale, pulverize through a 60-mesh sieve, and use petroleum ether to reflux extract it for 3 hours according to the liquid-solid mass-volume ratio of 10ml:1g. The degreased medicinal material is obtained, and the obtained degreased medicinal material is extracted with distilled water according to the liquid-solid mass volume ratio of 10ml:1g negative pressure ultrasonic extraction, the extraction temperature is 70°C, the ultrasonic extraction time is 1h, the ultrasonic frequency is 50kHz, and the negative pressure strength is -0.05Mpa , extract twice, collect the water extract, and concentrate the water extract to one-tenth of the ext...

Embodiment 2

[0026] Ultrasonic-assisted negative pressure cavitation method to extract polysaccharides from Dendrobium officinale and the preparation technology of its instant powder are as follows:

[0027] (1) Ultrasonic-assisted negative pressure cavitation extraction process of Dendrobium officinale polysaccharides: take 100 g of dried stems of Dendrobium officinale, crush them through a 60-mesh sieve, and use cyclohexane to reflux extract them for 2 hours according to the liquid-solid mass volume ratio of 8ml:1g , to obtain the degreased medicinal material, the obtained degreased medicinal material is extracted with distilled water according to the liquid-solid mass volume ratio of 8ml:1g negative pressure ultrasonic extraction, the extraction temperature is 68°C, the ultrasonic extraction time is 0.8h, the ultrasonic frequency is 45kHz, and the negative pressure intensity is - 0.03Mpa, extract twice, collect the water extract, and concentrate the water extract to one-tenth of the extr...

Embodiment 3

[0031] Ultrasonic-assisted negative pressure cavitation method to extract polysaccharides from Dendrobium officinale and the preparation technology of its instant powder are as follows:

[0032] (1) Dendrobium officinale polysaccharide ultrasonic-assisted negative pressure cavitation extraction process: get the dried stem of Dendrobium officinale 100g, pulverize through a 60-mesh sieve, and use ether to carry out reflux extraction to it for 4 hours according to the liquid-solid mass volume ratio of 12ml:1g, to obtain After degreasing the medicinal materials, the obtained degreasing medicinal materials are extracted with distilled water according to the liquid-solid mass volume ratio of 12ml:1g negative pressure ultrasonic extraction, the extraction temperature is 72°C, the ultrasonic extraction time is 1.2h, the ultrasonic frequency is 55kHz, and the negative pressure strength is -0.07Mpa , extract twice, collect the water extract, and concentrate the water extract to one-tenth...

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Abstract

The invention relates to a method for preparing polysaccharide instant powder by extraction, purification and spray drying; the dendrobium officinale polysaccharide is extracted with the ultrasonic assisted negative pressure cavitation method, and NKA-2 macroporous resin is optimized to purify the dendrobium officinale polysaccharide; the spray drying parameters and the formula of the dendrobium officinale polysaccharide are optimized, and an optimization technology of the preparing polysaccharide instant powder is formulated. A set of technology for preparing polysaccharide instant powder by extraction, purification and spray drying of the dendrobium officinale polysaccharide is formulated, compared with traditional methods, the dendrobium officinale polysaccharide is extracted efficiently and rapidly, with the adoption of the preparation technology, the extraction amount, the purity, the deproteinization rate and the depigmentation rate of crude polysaccharide are high, the prepared dendrobium officinale polysaccharide has excellent fluidity, larger stacking density, stable dispersity and rapid solubility and has an important significance for deep processing of the dendrobium officinale polysaccharide.

Description

technical field [0001] The invention relates to a set of techniques for extracting and purifying polysaccharides from dendrobium officinale and making them into instant powder. Background technique [0002] Dendrobium candidum is a famous and precious Chinese medicinal material, and polysaccharide is one of its recognized effective components, and its content in Dendrobium candidum is as high as about 30%. At present, the research on polysaccharides of Dendrobium officinale mainly focuses on its structure analysis and physiological activity screening. However, Dendrobium candidum, as a clear and excellent immunomodulator, is rarely listed on the market for the deep processing of Dendrobium candidum polysaccharides. In order to make full use of the medicinal value of Dendrobium officinale, this patent conducts research on the deep processing of polysaccharides from Dendrobium officinale. An effective extraction process has been developed to efficiently obtain polysaccharide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00C08J3/12C08L5/00
CPCC08B37/0003C08J3/12C08J2305/00
Inventor 陈金龙王国鑫黄丽莉朱培林何彬宋喜红
Owner 江西九草铁皮石斛科技协同创新有限公司
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