CN103265644A - Preparation method of white muscardine silkworm anticancer-activity polysaccharide BBPW-2 - Google Patents
Preparation method of white muscardine silkworm anticancer-activity polysaccharide BBPW-2 Download PDFInfo
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- CN103265644A CN103265644A CN2013101792982A CN201310179298A CN103265644A CN 103265644 A CN103265644 A CN 103265644A CN 2013101792982 A CN2013101792982 A CN 2013101792982A CN 201310179298 A CN201310179298 A CN 201310179298A CN 103265644 A CN103265644 A CN 103265644A
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Abstract
The invention relates to a preparation method of white muscardine silkworm anticancer-activity polysaccharide BBPW-2, which comprises the following steps: degreasing white muscardine silkworm powder under reflux of acetone-petroleum ether and 80% ethanol to remove glycosides and alkaloids, and extracting with distilled water at 80-100 DEG C to obtain crude polysaccharide; and after removing proteins from the crude polysaccharide by a Sevag process, separating out the neutral polysaccharide component by DEAE (diethylaminoethanol) sepharose ion-exchange chromatography, carrying out propylene dextrangel S-300 chromatography, taking the second eluting peak, concentrating under reduced pressure, carrying out propylene dextrangel S-200 chromatography for further purification, and carrying out freeze-drying to obtain the white muscardine silkworm anticancer-activity polysaccharide BBPW-2. The product prepared by the method provided by the invention has uniform purity, and the molecular weight is 2.0*10<3>Da; and the product has an inhibiting action on growth of human cervical cancer cells Hela and human liver cancer cells HepG2, does not have any adverse effect on growth of normal human embryo kidney cells HEK293 and mouse macrophages RAW264.7, and can be used for developing anticancer products.
Description
Technical field
The present invention relates to the preparation method of a kind of Bombyx Batryticatus antitumour activity Polysaccharide B BPW-2.
Background technology
From the natural high moleculer eompound polysaccharide of high animal and plant cells film and microorganism wall, be one of 4 big base substances that constitute vital movement, bringing into play important effect aspect the processing of identification, secretion and the albumen of cell and the transhipment etc.Find that granulose has anti-tumor activity the end of the fifties in last century, after this from bacterium, fungi, algae, plant and animal, extract and multiplely have the polysaccharide of antitumour activity and be applied to clinical, because the effective antitumous effect of natural polysaccharide and lower toxicity are subjected to people's attention more and more widely.
Bombyx Batryticatus be silkworm (
Bombyx mori) larva pathogenic infection muscardine (
Beauveria bassiana) the deadly dry bacterium polypide in back, being the famous and precious traditional Chinese medicine material of China, it is medicinal still very extensive at present, also for export throughout the year.Bombyx Batryticatus property is flat, and it is salty, hot distinguish the flavor of, have expel endogenous wind to relieve convulsion, pharmacological actions such as vanishing sputum and dispelling knot, anticonvulsion, anti-freezing, hypnosis, antibacterial, anticancer, hypoglycemic, reducing blood-fat, its pharmacological action widely contains the activeconstituents of uniqueness with it closely related.But Bombyx Batryticatus medical mechanism particularly anticancer mechanism is not clear, and this has encumbered the medicinal level of Bombyx Batryticatus and has improved and medicinal range extension.Bombyx Batryticatus is rich in polysaccharide, and its active polysaccharide is common generation the in the pathogenic course after cause of disease muscardine (fungi) is invaded the silkworm larva body, and separation and purification is also prepared Bombyx Batryticatus antitumour activity polysaccharide, for advancing the medicinal exploitation of Bombyx Batryticatus to have bigger value.
Summary of the invention
The object of the present invention is to provide the preparation method of a kind of Bombyx Batryticatus antitumour activity Polysaccharide B BPW-2, be to adopt refluxing extraction, DEAE-Sepharose Fast Flow ion exchange column to separate with Sephacryl S-300 chromatography column, the method of Sephacryl S-200 chromatography column purifying, preparation Bombyx Batryticatus antitumour activity Polysaccharide B BPW-2.
In order to achieve the above object, the technical solution used in the present invention is as follows:
1) Bombyx Batryticatus in-15 ℃ of following micronizing 5 min, crosses 80 ~ 100 mesh sieves in-50 ℃ of following vacuum-drying 36 h, obtains the Bombyx Batryticatus powder;
2) get the Bombyx Batryticatus powder, be that 1:3 adds acetone-sherwood oil mixed solution by W:V, acetone and sherwood oil volume ratio are 1:1, and backflow degreasing 1 h under 60 ° of C repeats 2 times, suction filtration, residue is 80% ethanol, 1 h that refluxes under 95 ° of C with 5 times of volume mass concentration, removes glycoside and alkaloid, repeats 3 times, suction filtration, residue is dried in 40 ° of C;
3) solid residue is that 1:5 adds distilled water by W:V, behind ultrasonication 40 ~ 50 min, extracts 1 ~ 1.5 h under 80 ~ 100 ° of C, extracts Crude polysaccharides from Bombyx Batryticatus;
4) Crude polysaccharides is that 1:10 adds dissolved in distilled water by W:V, be the chloroform of 4:1 and propyl carbinol except albumen 6 times with volume ratio, iodine color reaction and ninhydrin reaction all detect less than protein, steam to remove chloroform and propyl carbinol in 50 ° of C backspins, adding mass concentration is 80% ethanol, make the ethanol mass concentration reach 80%, fully stir rearmounted refrigerator overnight, precipitation obtains polysaccharide;
5) polysaccharide is mixed with 20 mg/mL solution with dissolved in distilled water, and centrifugal 10 min of 8000 rpm get supernatant liquor, cross 0.45 μ m filter membrane, last DEAE-Sepharose Fast Flow ion exchange column, with 3.0 ~ 3.5 mL/min flow velocity wash-outs, automatic collector is collected with distilled water, the phenolsulfuric acid method detects, collection has the elutriant of color reaction, concentrating under reduced pressure ,-50 ℃ of following vacuum-dryings, obtain the neutral polysaccharide component, be named BBPW;
6) BBPW is mixed with 10 mg/mL solution with dissolved in distilled water, cross 0.45 μ m filter membrane, last Sephacryl S-300 chromatography column, with distilled water with 1.0 ~ 1.2 mL/min flow velocity wash-outs, automatic collector is collected, the phenolsulfuric acid method detects, and collects the elutriant of the 2nd elution peak, and it is 10 mg/mL that concentrating under reduced pressure becomes concentration;
7) Sephacryl S-200 chromatography column on the concentrated solution, with 1.0 ~ 1.2 mL/min flow velocity wash-outs, automatic collector is collected with distilled water, the phenolsulfuric acid method detects, and collects the elutriant that color reaction is arranged ,-50 ℃ of following vacuum-dryings, obtain the polysaccharide fraction of homogeneous, be named BBPW-2.
The beneficial effect that the present invention has is:
The Bombyx Batryticatus antitumour activity Polysaccharide B BPW-2 of the present invention's preparation, purity homogeneous, molecular weight are 2.0 * 10
3Da, growth to human cervical carcinoma cell Hela and human liver cancer cell HepG2 all shows the obvious suppression effect, normal cell embryo nephrocyte HEK293 and mouse macrophage RAW264.7 growth are all had no adverse effects, can be used for the exploitation of antineoplastic product, this has positive social benefit and economic benefit for promoting the Bombyx Batryticatus pharmaceutical use.
Description of drawings
Fig. 1 is the high-efficient liquid phase chromatogram of BBPW-2 purity detecting.
Fig. 2 is the basic block diagram of BBPW-2
Fig. 3 is the inhibition figure of the human cervical carcinoma cell Hela of BBPW-2 and human liver cancer cell HepG2 growth.
Embodiment
Before the enforcement, 80 ~ 100 mesh sieves in-50 ℃ of following vacuum-drying 36 h, in-15 ℃ of following micronizing 5 min, are crossed with Bombyx Batryticatus by elder generation, obtain the Bombyx Batryticatus powder;
Get the Bombyx Batryticatus powder, be that 1:3 adds acetone-sherwood oil mixed solution by W:V, acetone and sherwood oil volume ratio are 1:1, and backflow degreasing 1 h under 60 ° of C repeats 2 times, suction filtration, residue is 80% ethanol, 1 h that refluxes under 95 ° of C with 5 times of volume mass concentration, removes glycoside and alkaloid, repeats 3 times, suction filtration, residue is dried in 40 ° of C.
Embodiment 1:
Got the Bombyx Batryticatus powder of 80 mesh sieves, degreasing as stated above, except behind glycoside and the alkaloid press the 1:5 solid-liquid ratio and is added distilled water, ultrasonication 40 min, and extraction 1 h extracts Crude polysaccharides under 100 ° of C; (the volume ratio chloroform: propyl carbinol=4:1) except behind the albumen, last DEAE-Sepharose Fast Flow ion exchange column uses distilled water with 3.0 mL/min flow velocity wash-outs to Crude polysaccharides, and automatic collector is collected, and obtains neutral polysaccharide B component BPW with the Sevag method; The last Sephacryl S-300 of BBPW chromatography column, with 1.0 mL/min flow velocity wash-outs, automatic collector is collected with distilled water, collects the elutriant of the 2nd elution peak, concentrating under reduced pressure; Sephacryl S-200 chromatography column on the concentrated solution, with 1.0 mL/min flow velocity wash-outs, automatic collector is collected, and obtains polysaccharide fraction BBPW-2 with distilled water.BBPW-1 purity homogeneous (as shown in Figure 1), molecular weight 2.0 * 10
3Da, contain seminose, 3 kinds of monose of glucose and semi-lactosi, mol ratio is seminose: glucose: semi-lactosi=1: 0.74: 0.59, be with β-D-1,2,6-glucose and β-D-1,2, the 6-seminose is main chain, with α-D-1,2-semi-lactosi and α-D-1, the 3-seminose is side chain, α-D-seminose and β-D-glucose is the oligosaccharide (as shown in Figure 2) that end group is formed, when concentration 2.5 mg/mL to the inhibiting rate of human cervical carcinoma cell Hela and human liver cancer cell HepG2 growth be respectively 55.8% and 39.1%(as shown in Figure 3), normal cell embryo nephrocyte HEK293 and mouse macrophage RAW264.7 growth are had no adverse effects.
Embodiment 2:
Got the Bombyx Batryticatus powder of 100 mesh sieves, degreasing as stated above, except behind glycoside and the alkaloid press the 1:5 solid-liquid ratio and is added distilled water, ultrasonication 50 min, and extraction 1.5 h extract Crude polysaccharides under 100 ° of C; (the volume ratio chloroform: propyl carbinol=4:1) except behind the albumen, last DEAE-Sepharose Fast Flow ion exchange column uses distilled water with 3.5 mL/min flow velocity wash-outs to Crude polysaccharides, and automatic collector is collected, and obtains neutral polysaccharide B component BPW with the Sevag method; The last Sephacryl S-300 of BBPW chromatography column, with 1.2 mL/min flow velocity wash-outs, automatic collector is collected with distilled water, collects the elutriant of the 2nd elution peak, concentrating under reduced pressure; Sephacryl S-200 chromatography column on the concentrated solution, with 1.2 mL/min flow velocity wash-outs, automatic collector is collected, and obtains polysaccharide fraction BBPW-2 with distilled water.BBPW-1 purity homogeneous (similar to the Fig. 1 among the embodiment 1), molecular weight 2.0 * 10
3Da, contain seminose, 3 kinds of monose of glucose and semi-lactosi, mol ratio is seminose: glucose: semi-lactosi=1: 0.74: 0.59, be with β-D-1,2,6-glucose and β-D-1,2, the 6-seminose is main chain, with α-D-1,2-semi-lactosi and α-D-1, the 3-seminose is side chain, α-D-seminose is the oligosaccharide (Fig. 2 among the embodiment 1 is similar) that end group is formed with β-D-glucose, when concentration 2.5 mg/mL, the inhibiting rate of human cervical carcinoma cell Hela and human liver cancer cell HepG2 growth is respectively 56.3% similar to the Fig. 3 among the embodiment 1 with 39.5%(), normal cell embryo nephrocyte HEK293 and mouse macrophage RAW264.7 grown to have no adverse effects.
Embodiment 3:
Got the Bombyx Batryticatus powder of 90 mesh sieves, degreasing as stated above, except behind glycoside and the alkaloid press the 1:5 solid-liquid ratio and is added distilled water, ultrasonication 40 min, and extraction 1.2 h extract Crude polysaccharides under 100 ° of C; (the volume ratio chloroform: propyl carbinol=4:1) except behind the albumen, last DEAE-Sepharose Fast Flow ion exchange column uses distilled water with 3.2 mL/min flow velocity wash-outs to Crude polysaccharides, and automatic collector is collected, and obtains neutral polysaccharide B component BPW with the Sevag method; The last Sephacryl S-300 of BBPW chromatography column, with 1.1 mL/min flow velocity wash-outs, automatic collector is collected with distilled water, collects the elutriant of the 2nd elution peak, concentrating under reduced pressure; Sephacryl S-200 chromatography column on the concentrated solution, with 1.1 mL/min flow velocity wash-outs, automatic collector is collected, and obtains polysaccharide fraction BBPW-2 with distilled water.BBPW-2 purity homogeneous (similar to the Fig. 1 among the embodiment 1), molecular weight 2.0 * 10
3Da, contain seminose, 3 kinds of monose of glucose and semi-lactosi, mol ratio is seminose: glucose: semi-lactosi=1: 0.74: 0.59, be with β-D-1,2,6-glucose and β-D-1,2, the 6-seminose is main chain, with α-D-1,2-semi-lactosi and α-D-1, the 3-seminose is side chain, α-D-seminose is the oligosaccharide (Fig. 2 among the embodiment 1 is similar) that end group is formed with β-D-glucose, when concentration 2.5 mg/mL, the inhibiting rate of human cervical carcinoma cell Hela and human liver cancer cell HepG2 growth is respectively 56.8% similar to the Fig. 3 among the embodiment 1 with 39.9%(), normal cell embryo nephrocyte HEK293 and mouse macrophage RAW264.7 grown to have no adverse effects.
Claims (1)
1. the preparation method of a Bombyx Batryticatus antitumour activity Polysaccharide B BPW-2 is characterized in that:
1) Bombyx Batryticatus in-15 ℃ of following micronizing 5 min, crosses 80 ~ 100 mesh sieves in-50 ℃ of following vacuum-drying 36 h, obtains the Bombyx Batryticatus powder;
2) get the Bombyx Batryticatus powder, be that 1:3 adds acetone-sherwood oil mixed solution by W:V, acetone and sherwood oil volume ratio are 1:1, and backflow degreasing 1 h under 60 ° of C repeats 2 times, suction filtration, residue is 80% ethanol, 1 h that refluxes under 95 ° of C with 5 times of volume mass concentration, removes glycoside and alkaloid, repeats 3 times, suction filtration, residue is dried in 40 ° of C;
3) solid residue is that 1:5 adds distilled water by W:V, behind ultrasonication 40 ~ 50 min, extracts 1 ~ 1.5 h under 80 ~ 100 ° of C, extracts Crude polysaccharides from Bombyx Batryticatus;
4) Crude polysaccharides is that 1:10 adds dissolved in distilled water by W:V, be the chloroform of 4:1 and propyl carbinol except albumen 6 times with volume ratio, iodine color reaction and ninhydrin reaction all detect less than protein, steam to remove chloroform and propyl carbinol in 50 ° of C backspins, adding mass concentration is 80% ethanol, make the ethanol mass concentration reach 80%, fully stir rearmounted refrigerator overnight, precipitation obtains polysaccharide;
5) polysaccharide is mixed with 20 mg/mL solution with dissolved in distilled water, and centrifugal 10 min of 8000 rpm get supernatant liquor, cross 0.45 μ m filter membrane, last DEAE-Sepharose Fast Flow ion exchange column, with 3.0 ~ 3.5 mL/min flow velocity wash-outs, automatic collector is collected with distilled water, the phenolsulfuric acid method detects, collection has the elutriant of color reaction, concentrating under reduced pressure ,-50 ℃ of following vacuum-dryings, obtain the neutral polysaccharide component, be named BBPW;
6) BBPW is mixed with 10 mg/mL solution with dissolved in distilled water, cross 0.45 μ m filter membrane, last Sephacryl S-300 chromatography column, with distilled water with 1.0 ~ 1.2 mL/min flow velocity wash-outs, automatic collector is collected, the phenolsulfuric acid method detects, and collects the elutriant of the 2nd elution peak, and it is 10 mg/mL that concentrating under reduced pressure becomes concentration;
7) Sephacryl S-200 chromatography column on the concentrated solution, with 1.0 ~ 1.2 mL/min flow velocity wash-outs, automatic collector is collected with distilled water, the phenolsulfuric acid method detects, and collects the elutriant that color reaction is arranged ,-50 ℃ of following vacuum-dryings, obtain the polysaccharide fraction of homogeneous, be named BBPW-2;
8) adopt the 1525 type highly effective liquid phase chromatographic systems of being furnished with TSK PWXL G4000 glycan analysis post, with the parallel detection with UV-detector of differential BBPW-2, present single symmetrical peak, reference standard curve calculation molecular weight is 2.0 * 10
3Da, contain seminose, glucose and 3 kinds of monose of semi-lactosi, mol ratio is seminose: glucose: semi-lactosi=1: 0.74: 0.59, be with β-D-1,2,6-glucose and β-D-1,2, the 6-seminose is main chain, with α-D-1,2-semi-lactosi and α-D-1,3-seminose are that side chain, α-D-seminose and β-D-glucose are the oligosaccharide that end group is formed; The growth that mtt assay detects the human cervical carcinoma cell Hela of BBPW-1 and human liver cancer cell HepG2 all shows the obvious suppression effect, inhibiting rate when concentration 2.5 mg/mL is respectively 56.3% and 39.5%, and normal cell embryo nephrocyte HEK293 and mouse macrophage RAW264.7 growth are all had no adverse effects.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105294878A (en) * | 2015-12-02 | 2016-02-03 | 浙江大学 | Preparation method of mulberry twig antineoplastic activity polysaccharide RMPW-1 |
| CN105294879A (en) * | 2015-12-02 | 2016-02-03 | 浙江大学 | Preparation method of mulberry twig antineoplastic activity polysaccharide RMPW-2 |
| CN107540758A (en) * | 2017-09-29 | 2018-01-05 | 南京仙草堂生物科技有限公司 | A kind of extraction of polysaccharide of silkworm pupa and purifying process |
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| CN101591231A (en) * | 2009-06-23 | 2009-12-02 | 广东省农业科学院蚕业与农产品加工研究所 | A kind of extraction process of Bombyx Batryticatus ammonium oxalate |
| CN101676304A (en) * | 2008-09-16 | 2010-03-24 | 上海医药工业研究院 | Low-molecular-weight glucan, its preparation method and use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101676304A (en) * | 2008-09-16 | 2010-03-24 | 上海医药工业研究院 | Low-molecular-weight glucan, its preparation method and use |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105294878A (en) * | 2015-12-02 | 2016-02-03 | 浙江大学 | Preparation method of mulberry twig antineoplastic activity polysaccharide RMPW-1 |
| CN105294879A (en) * | 2015-12-02 | 2016-02-03 | 浙江大学 | Preparation method of mulberry twig antineoplastic activity polysaccharide RMPW-2 |
| CN107540758A (en) * | 2017-09-29 | 2018-01-05 | 南京仙草堂生物科技有限公司 | A kind of extraction of polysaccharide of silkworm pupa and purifying process |
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