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Preparation method of arabitol

A technology of arabitol and absolute ethanol, applied in the separation/purification of hydroxyl compounds, organic chemistry, etc., can solve the problems that there is no large-scale preparation technology of arabitol, and achieve the effect of simple preparation method and high purity

Inactive Publication Date: 2019-02-15
SHANGHAI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no large-scale preparation technology of arabitol from edible fungus

Method used

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  • Preparation method of arabitol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1000g Ganoderma lucidum (Shanghai Baixin Biotechnology Co., Ltd.) raw material was extracted twice with 85% ethanol, the ratio of solid to liquid was 1:15 (weight ratio), the extraction temperature was 80°C, and the extraction time was 2 hours each time. Use a 100-mesh filter cloth to filter, combine the extracts twice, and obtain a total of 15L of extracts;

[0032] First, use a vacuum concentrator to perform ethanol recovery operation at 60°C until no ethanol droplets flow down the condenser quickly, and replenish the remaining part of the extract with water until the volume of the feed liquid is 2L;

[0033] 2L feed liquid is treated by 500 molecular weight nanofiltration, and the post-column pressure of 500 molecular weight nanofiltration is controlled at 4kg / cm 2 , whenever the volume of the feed liquid decreases to 1L, add 1L of water to the feed liquid to dilute the concentration of the feed liquid, and stop nanofiltration when the total volume of water replenish...

Embodiment 2

[0036] Dissolve the crystals obtained in Example 1 with deionized water, prepare a solution with a concentration of 10 μg / ml, and use high-performance anion chromatography-pulse amperometric detection. As the working electrode, Ag / AgCl as the reference electrode, pulse amperometric detector working parameters: El is 100mv, 400ms; E2 is 2000mv, 20ms; E3 is 600mV, 10ms; E4 is 100mV, 70ms. The workstation software is Chromeleon 6.0. The detection column is the CarboPac MA1 anion exchange column (4×250mm) produced by Diane Company, the mobile phase is 480mmol / L NaOH, the flow rate is 0.40ml / min, the sample volume is 25μl, the column temperature is 30°C, and the arabinose provided by sigma company is used. Alcohol standard product and erythritol, mannitol, trehalose, glucose standard product were prepared into 10μg / ml solution as a control.

[0037] The result is as figure 1 As shown, it can be seen that there are no other significant sugar peaks in the sample, and the purity of ...

Embodiment 3

[0039] 1000g Hericium erinaceus (Shanghai Dashanhe Fungus Technology Co., Ltd.) raw material is extracted twice with 85% ethanol, the ratio of solid to liquid is 1:15 (weight ratio), the extraction temperature is 80°C, and the extraction time is 2 hours each time After the extraction, filter with a 100-mesh filter cloth, combine the two extracts, and obtain a total of 18L of extracts;

[0040] First, use a vacuum concentrator to perform ethanol recovery operation at 60°C until no ethanol droplets flow down the condenser quickly, and replenish the remaining part of the extract with water until the volume of the feed liquid is 2L;

[0041] After 500 molecular weight nanofiltration treatment, the post-column pressure of 500 molecular weight nanofiltration is controlled at 4kg / cm 2 , whenever the volume of the feed liquid decreases to 1L, add 1L of water to the feed liquid to dilute the concentration of the feed liquid, and stop nanofiltration when the total volume of water replen...

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Abstract

The invention discloses a preparation method of arabitol. The method comprises the steps as follows: performing a nanofiltration operation of 500-molecular weight on an edible fungus extracting solution; collecting a fraction with the molecular weight less than 500; performing a reverse osmosis membrane filtration operation on the extracting solution with the molecular weight less than 500; concentrating feed liquid until the soluble solid content reaches 40-50%, adding absolute ethyl alcohol for crystallization, and performing suction filtration to obtain crude crystals; mixing the crude crystals with absolute ethyl alcohol at the weight ratio of 1:20 and heating until the mixture is dissolved, standing still, naturally cooling to be recrystallized, performing suction filtered, and dryingto obtain high-purity sugar alcohol crystals. The preparation method of the arabitol provided by the invention is simple to operate, and the prepared arabitol is high in purity.

Description

technical field [0001] The invention relates to the field of edible mushroom processing, in particular to a preparation method of arabitol. Background technique [0002] As a large fungus, edible fungus has a high carbohydrate content, generally accounting for about 60% of the dry weight. Among them, sugar alcohols such as arabinitol (Arabinitol) are widely present in edible fungi. The content in the fruiting body of the mushroom can reach 10%, and the content in the fruiting body of Ganoderma lucidum can reach 5%. Sugar alcohol, also known as polyol, is an important raw material in food, chemical industry and medicine. It can be dissolved in water and hot alcohol, and it is characterized by low sweetness, low calorie, low viscosity and high hygroscopicity. Because its metabolic pathway has nothing to do with insulin, human intake will not cause fluctuations in blood sugar and insulin levels, so it is an ideal sweetener for diabetics; plus long-term intake will not cause d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C31/18C07C29/76C07C29/78
CPCC07C29/76C07C29/78C07C31/18
Inventor 周帅唐庆九张劲松冯娜张忠杨焱刘艳芳贾薇唐传红刘方
Owner SHANGHAI ACAD OF AGRI SCI
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