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Preparing method of lycium barbarum polysaccharides

The technology of wolfberry polysaccharide and wolfberry is applied in the field of wolfberry polysaccharide and its preparation, which can solve the problems such as reducing the activity of wolfberry polysaccharide, and achieve the effect of ensuring purity and biological activity.

Inactive Publication Date: 2018-07-20
宁夏天仁枸杞生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the above extraction method of Lycium barbarum polysaccharides, there are following problems: 1. Enzymolysis and microwave extraction under microwave conditions are adopted. According to current research, the intervention of microwave equipment may reduce the activity of Lycium barbarum polysaccharides
2. The yield of polysaccharides can be increased by using enzymatic hydrolysis, but since it is necessary to inactivate the enzyme at high temperature to eliminate the activity of the enzyme, the temperature for inactivating the enzyme is generally around 100°C. Will greatly reduce the activity of Lycium barbarum polysaccharide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of Lycium barbarum polysaccharide, the specific steps are as follows:

[0029] 1) Weigh 500 grams of dried wolfberry fruit, wash with purified water for 15 minutes, then add 2 kg of purified water at 35°C to soak for 1 hour;

[0030] 2) Crush the above soaked wolfberry and soaking liquid, and then grind the crushed material through a colloid mill to achieve the purpose of dispersion, crushing, emulsification, homogenization, and mixing

[0031] 3) Add 2 kg of purified water at 35°C to the material ground in the above steps, and stir and extract for about 2 hours;

[0032] 4) Filter the above extract, and collect the filtrate for later use; the obtained wolfberry seeds and thick pulp of wolfberry can be used to extract wolfberry seed oil and make wolfberry beverage.

[0033] For filtration, a double-channel beater can be used to remove the wolfberry seeds, and then the coarse pulp of the wolfberry is removed by a decanter centrifuge at a centrifugal...

Embodiment 2

[0040] In above-mentioned embodiment, wolfberry adopts fresh wolfberry, concrete steps are as follows:

[0041] 1) Weigh 2,500 grams of dried wolfberry fruit, and use purified water to vibrate and spray for about 8 minutes;

[0042] 2) Crushing the cleaned fresh wolfberry, and grinding the broken material through a colloid mill;

[0043] 3) Add 2 kg of purified water at 35°C to the material ground in the above steps, and stir and extract for about 1 hour;

[0044] 4) Filter the above extraction solution, and collect the filtrate for later use; the obtained wolfberry seeds and crude pulp of wolfberry can be used to extract wolfberry seed oil and wolfberry beverage.

[0045] For filtration, a double-channel beater can be used to remove the wolfberry seeds, and then the coarse pulp of the wolfberry is removed by a decanter centrifuge at a centrifugal speed of 3700r / min, and then the wolfberry pulp is removed by a butterfly centrifuge at a centrifugal speed of 7800r / min;

[0046...

Embodiment 3

[0051] 1) Wash 500g of organic wolfberry dried fruit after metal detection (Ø0.5mm) with purified water vibration spray for 15 minutes, and transfer it to a sanitary soaking tank through a sanitary screw pump;

[0052] 2) Add purified water at 35°C that is 4 times the mass of dried wolfberry fruit, and soak for 1 hour;

[0053]3) Use a crusher to crush, and then pass through a sanitary colloid mill to obtain wolfberry soaking liquid at a speed of 3000r / min;

[0054] 4) Add 4 times of 35°C purified water to the above soaking solution, stir and extract for 2 hours at a speed of 100r / min to obtain the extract;

[0055] 5) Remove the wolfberry seeds from the extract through a double-channel beater at a speed of 1440r / min; then remove the coarse pulp of wolfberry through a decanter centrifuge at a centrifugal speed of 3700r / min, and then remove the wolfberry pulp through a butterfly centrifuge at a centrifugal speed of 7800r / min min, to obtain the extract Ⅰ;

[0056] 6) The extra...

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Abstract

The invention relates to a preparing method of lycium barbarum polysaccharides. The method specifically includes the steps of lycium barbarum cleaning, water adding for soaking, smashing, purified water adding for extracting, lycium barbarum seed removing by a pulper, lycium barbarum pulp removing by a centrifugal machine, passing of filtrate through a ceramic film and an organic film system, andconcentrating and freeze-drying of an extraction solution for obtaining the product, namely the lycium barbarum polysaccharides. The most effective water temperature and ratio of purified water in theextraction stage are determined, the sufficient dissolving-out of the lycium barbarum polysaccharides is ensured, and the extraction rate of the lycium barbarum polysaccharides is greatly increased;the biological activity of the lycium barbarum polysaccharides is kept to the maximum extent, and the problem that effective components are lost when the inactivation and flocculation of polysaccharides and proteins are caused by heating through an alcohol deposition method is avoided.

Description

technical field [0001] The invention belongs to the technical field of polysaccharide extraction, and in particular relates to a wolfberry polysaccharide and a preparation method thereof. Background technique [0002] In recent years, people's research on wolfberry shows that wolfberry polysaccharide is the most important active ingredient in wolfberry. Lycium barbarum polysaccharide is a water-soluble polysaccharide, which has the functions of promoting immunity, anti-aging, anti-tumor, scavenging free radicals, anti-fatigue, and lowering blood lipids. , lowering blood sugar, regulating immunity, anti-radiation, protecting liver, protecting and improving reproductive function, etc. As people pay more and more attention to the medicinal and edible value of Lycium barbarum, the extraction method and application of Lycium barbarum polysaccharide has become a research hotspot. Most of the existing wolfberry polysaccharide extraction processes are traditional hot water extracti...

Claims

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Application Information

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IPC IPC(8): C08B37/00
CPCC08B37/0003
Inventor 于哲雄孟莹刘建国
Owner 宁夏天仁枸杞生物科技股份有限公司
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