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Extraction method for peach gum polysaccharide

An extraction method, peach gum polysaccharide technology, applied in the field of extraction of natural active ingredients, to achieve the effect of shortening alcohol precipitation time and increasing yield

Inactive Publication Date: 2017-10-24
杨俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the existing shortcomings of using the Sevage method to remove proteins in polysaccharides, the purpose of the present invention is to provide a method for extracting peach gum polysaccharides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1, a kind of extraction method of peach gum polysaccharide, specifically,

[0016] (1) Dried peach gum to remove impurities, crushed through an 80-mesh sieve, and obtained peach gum powder;

[0017] (2) After treating the peach gum powder at 60°C for 25 minutes, mix it with distilled water at a ratio of 1g:100ml, and stir and extract at 90°C for 60 minutes;

[0018] (3) Centrifuge the extract with a high-speed centrifuge for 20 minutes at a speed of 4000r / min to obtain a supernatant, which is vacuum concentrated at 60°C to 1 / 5 of the original volume;

[0019] (4) Put the concentrated solution at 40°C, and fill the concentrated solution with liquid nitrogen at a volume ratio of 10:1. When filling, the liquid nitrogen outlet is at the bottom of the concentrated solution. After the first filling, store the concentrated solution at 2°C for 30 minutes, remove the precipitate, and then fill it next time;

[0020] (5) Add absolute ethanol to the concentrated solut...

Embodiment 2

[0022] Embodiment 2, a kind of extraction method of peach gum polysaccharide, specifically,

[0023] (1) Dried peach gum to remove impurities, crushed through an 80-mesh sieve, and obtained peach gum powder;

[0024] (2) After treating the peach gum powder at 65°C for 30 minutes, mix it with distilled water at a ratio of 1g:100ml, and stir and extract at 90°C for 80 minutes;

[0025] (3) Centrifuge the extract with a high-speed centrifuge for 20 minutes at a speed of 4000r / min to obtain a supernatant, which is vacuum concentrated at 60°C to 1 / 5 of the original volume;

[0026] (4) Put the concentrated solution at 45°C, and fill the concentrated solution with liquid nitrogen at a volume ratio of 10:2. When filling, the liquid nitrogen outlet is at the bottom of the concentrated solution. After the first charge, store the concentrated solution at 3°C ​​for 35 minutes, remove the precipitate, and then carry out the next charge;

[0027] (5) Add absolute ethanol to the concentra...

Embodiment 3

[0029] Embodiment 3, a kind of extraction method of peach gum polysaccharide, specifically,

[0030] (1) Dried peach gum to remove impurities, crushed through an 80-mesh sieve, and obtained peach gum powder;

[0031] (2) After treating the peach gum powder at 62°C for 28 minutes, mix it with distilled water at a ratio of 1g:100ml, and extract with stirring at 90°C for 70 minutes;

[0032] (3) Centrifuge the extract with a high-speed centrifuge for 20 minutes at a speed of 4000r / min to obtain a supernatant, which is vacuum concentrated at 60°C to 1 / 5 of the original volume;

[0033] (4) Place the concentrated solution at 42°C, and fill the concentrated solution with liquid nitrogen at a volume ratio of 10:1.5. After the first charge, store the concentrated solution at 2.8°C for 32 minutes, remove the precipitate, and then carry out the next charge;

[0034] (5) Add absolute ethanol to the concentrated solution from which the precipitate was removed at a volume ratio of 10 tim...

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Abstract

The invention specifically relates to an extraction method for peach gum polysaccharide, belonging to the technical field of extraction of natural active components. The extraction method comprises the following steps: subjecting dried peach gum to impurity removal and crushing and carrying out treatment at 60 to 65 DEG C; then mixing the treated peach gum with distilled water under stirring for extraction; carrying out centrifugation with a high-speed centrifuge so as to obtain a supernatant; subjecting the supernatant to vacuum concentration; then adding liquid nitrogen into a concentrate obtained in the previous step; storing the concentrate at 2 to 3 DEG C and removing a precipitate; adding absolute ethyl alcohol into the concentrate without the precipitate; and subjecting another precipitate obtained in the previous step to vacuum drying and grinding so as to obtain the peach gum polysaccharide. Unlike conventional methods where proteins in peach gum are removed through a Sevage process, the extraction method provided by the invention realizes removal of proteins in the peach gum by adding liquid nitrogen into the concentrate according to a volume ratio of the concentrate to the liquid nitrogen of 10: 1-2, and the removal rate of proteins reaches 99.5%; moreover, the process of removal poses no pollution to the peach gum polysaccharide; and thus, the high-quality peach gum polysaccharide is finally obtained.

Description

technical field [0001] The invention relates to the technical field of extracting natural active ingredients, in particular to a method for extracting peach gum polysaccharides. Background technique [0002] Peach gum is a resin secreted from the bark of Rosaceae plants such as peach or mountain peach. The plant form is detailed in the "Peach Kernel" section. Harvest in summer, cut the bark with a knife, and collect after the resin overflows. Soak in water, wash away impurities, and dry in the sun. The main components of gum are galactose, rhamnose, α-glucuronic acid and so on. Taken after refining, it has the effects of protecting the body from hunger, enduring wind and cold, lower urinary tract stones, dispelling blood, treating evil diseases in the middle, harmonizing blood and replenishing qi, curing diarrhea, and relieving pain. The polysaccharide in peach gum has the effect of lowering blood sugar. At present, the extraction process of peach gum polysaccharides gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
CPCC08B37/0003
Inventor 杨俊
Owner 杨俊
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