CN103044340A - Technology for separating uracil from Phellinus - Google Patents
Technology for separating uracil from Phellinus Download PDFInfo
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- CN103044340A CN103044340A CN2012105464569A CN201210546456A CN103044340A CN 103044340 A CN103044340 A CN 103044340A CN 2012105464569 A CN2012105464569 A CN 2012105464569A CN 201210546456 A CN201210546456 A CN 201210546456A CN 103044340 A CN103044340 A CN 103044340A
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- phellinus
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Abstract
The invention discloses a method for separating uracil from Phellinus (Phellinusigniarius (LexFr) Quel, Phellinuslinteus (BerketCurt) Teng, Phellinus baumii and Phellinushartigii (AlleschetSchnabl) Imaz). The method comprises the following steps of: firstly, preparing a crude Phellinus extract; secondly, performing normal phase silica gel chromatography, performing gradient elution by using petroleum ether and acetone, performing TLC (thin-layer chromatography) detection, and performing normal phase silica gel chromatography again; thirdly, performing methanol gel chromatography; fourthly, after the TLC detection, performing normal phase silica gel chromatography again; and finally, properly combining eluent, and drying under reduced pressure to obtain uracil.
Description
Technical field
The invention belongs to the biotech medicine product field.
Background technology
Phellinus (Phellinus), sporophore stockless, the flat semisphere of cap or the shape of a hoof; 2-12*3-21 centimetre, thick 1.5-10 centimetre, wooden; shallow liver brown to lead or black, always often be full of cracks is without cot; there is trickle fine hair at initial stage, and rear change has the concentric ring rib without hair. and the edge is blunt; dark cinnamon is to light coffee color; downside is without thalamium. and the bacterial context dark brown is hard, wooden. tube and bacterial context are closely homochromy; multilayer; but level is not obvious, and old tube layer is full of white hypha. the mouth of pipe becomes rusty brown to dark reddish brown, circle; every millimeter 4-5. spore is subsphaeroidal; smooth, colourless, the 5-6*3-4 micron. the bristle top is sharp-pointed; base portion expands; the 10-25*5-7 micron. mycelia is branch not, without tabula, diameter 3-5 micron.
At present, the purification process of epiphyte product is more, mainly contain precipitation classification, preparation property high performance liquid chromatography, column chromatography, ultrafiltration process, centrifugation chromatography, etc. several method.And wherein use maximum column chromatographies that surely belongs to, and be divided into two classes: the one, only have the gel filtration chromatography of molecular sieve effect, gel commonly used has dextrane gel and sepharose.The 2nd, ion exchange chromatography.But, mainly for separating of polysaccharide, hyaluronic acid etc., the product that obtains after most the separation is mixture.The present invention uses multiple chromatographic technique to combine, and resolution is high, and using this invention can be exquisite to sterling.
Summary of the invention
The invention discloses the separation method of uridylic in a kind of Phellinus bacterium.At first prepare the Phellinus crude extract, then carry out the purification on normal-phase silica gel chromatography, adopt sherwood oil and acetone gradient elution; carrying out TLC and detect, reuse the purification on normal-phase silica gel chromatography, then is the methanol gel chromatography; suitably merge elutriant after PLC detects, drying under reduced pressure had both got uridylic.
Technical scheme of the present invention is as follows:
The Phellinus crude extract is made by following method:
(1) fermentative medium formula in/100 milliliters of grams is:
W-Gum 1-5% glucose 1-5%
Peptone 0.1-0.5% yeast extract paste 0.1-0.5%
Sal epsom 0.1-0.5% potassium primary phosphate 0.01-0.05%
(2) the Phellinus bacterial classification is inoculated into ordinary method in the Erlenmeyer flask that liquid nutrient medium is housed, with 20～35 ℃ of temperature, the shaking flask rotating speed is 80～280r/min, and under pH 3～8 conditions, vibrations were cultivated 7～15 days; In the cultivation when the pH value drops to 2.5～4, seed in the shaking flask is inoculated in the nutrient solution of 50L fermentor tank, with 20～35 ℃ of temperature, fermentor tank pressure 0.1～0.2 kg/cm, pH 3～8, air flow 0.5～1.1vvm, the condition that stirring velocity is 100～280 rev/mins, cultivated 7～15 days, and can utilize the phellinus igniarius mycelium fermentation liquid to prepare the Phellinus crude extract;
(3) get gained phellinus igniarius mycelium fermentation liquid in the step (2), with its concentrating under reduced pressure in a usual manner, make its volume be concentrated to 1/2～1/5 of original volume;
(4) be that 60～95% the ethanol fermented liquid after concentrated to above-mentioned steps (3) extracts with volume percent, wherein, the amount that adds ethanol is 2～5 times of concentrated solution volume, can make that alcohol concn reaches 60～90% in the extracting solution;
(5) to step (4) gained extracting solution under 50～70 ℃ of conditions, heated 1～2 hour; Separate with ordinary method, and remove impurity by cascade filtration, separate obtaining ethanol extract; With above-mentioned ethanol extract concentrating under reduced pressure in a usual manner, make its volume be concentrated to 1/5～1/10 of original volume;
(6) just the concentrated solution of step (5) gained carries out drying with the method for frozen drying, gets the Phellinus crude extract.
The method of separating uridylic:
Phellinus bacterium crude extract → purification on normal-phase silica gel chromatography → chloroform and methyl alcohol gradient elution → TLC detection → purification on normal-phase silica gel chromatography → methanol gel chromatography → TLC detection → TLC detection → evaporated under reduced pressure → white powder (uridylic).
Concrete grammar is:
(1) preparation Phellinus bacterium crude extract;
(2) crude extract and the purification on normal-phase silica gel mixing with above-mentioned steps (1) gained stirs, and dry, carries out the silica gel normal phase column chromatography, uses eluent wash-out 2-7 time;
(3) collect last elutriant in the step (2), drying under reduced pressure with the equal-volume silica gel mixed sample, carries out the purification on normal-phase silica gel chromatography again, uses the eluent wash-out;
(4) elutriant in the collection above-mentioned steps (3), concentrating under reduced pressure uses dissolve with methanol, and the methanol gel column chromatography is used the eluent wash-out;
(5) elutriant of TLC detecting step (4), appropriateness merges elutriant, and high-pressure drying is uridylic.
The present invention is by the significant advantage of the isolation technique of uridylic in the Phellinus bacterium: present method adopts multiple chromatographic technique to combine, can be exquisite clear and definite to structure, and purity is greater than 95% uridylic.Mature technical route is clear and definite, and is accurately efficient.
(4) description of drawings
Fig. 1 is the structural formula of uridylic of the present invention;
Fig. 2 is the one-dimensional nuclear magnetic resonance H spectrum of uridylic
(5) embodiment
Example 1:
The Phellinus crude extract is made by following method:
(1) fermentative medium formula in/100 milliliters of grams is:
W-Gum 1% glucose 1%
Peptone 0.1% yeast extract paste 0.1%
Sal epsom 0.1% potassium primary phosphate 0.01%
(2) the Phellinus bacterial classification is inoculated into ordinary method in the Erlenmeyer flask that liquid nutrient medium is housed, with 25 ℃ of temperature, the shaking flask rotating speed is 110r/min, and under pH 7 conditions, vibrations were cultivated 7 days; In the cultivation when the pH value drops to 3, seed in the shaking flask is inoculated in the nutrient solution of 50L fermentor tank, with 25 ℃ of temperature, fermentor tank pressure 0.1 kg/cm, pH 3, air flow 0.5-1.1vvm, the condition that stirring velocity is 100 rev/mins, cultivated 7 days, and can utilize the phellinus igniarius mycelium fermentation liquid to prepare the Phellinus crude extract;
(3) get gained phellinus igniarius mycelium fermentation liquid in the step (2), with its concentrating under reduced pressure in a usual manner, make its volume be concentrated to 1/3 of original volume;
(4) be that 70% the ethanol fermented liquid after concentrated to above-mentioned steps (3) extracts with volume percent, wherein, the amount that adds ethanol is 5 times of concentrated solution volume, can make that alcohol concn reaches 55% in the extracting solution;
(5) to step (4) gained extracting solution under 70 ℃ of conditions, heated 1 hour; Separate with ordinary method, and remove impurity by cascade filtration, separate obtaining ethanol extract; With above-mentioned ethanol extract concentrating under reduced pressure in a usual manner, make its volume be concentrated to 1/5 of original volume;
(6) just the concentrated solution of step (5) gained carries out drying with the method for frozen drying, gets the Phellinus crude extract.
Above-mentioned crude extract is taken by weighing 200g and the stirring of equal-volume 100 order purification on normal-phase silica gel mixings, carry out the silica gel normal phase column chromatography.The chromatography stationary phase is 200-300 order purification on normal-phase silica gel, the high 1m of post, and diameter 20cm, eluent is for being respectively chloroform, chloroform: methyl alcohol=100:1, chloroform: methyl alcohol=50:1, chloroform: methyl alcohol=10:1, chloroform: methyl alcohol=5:1, difference wash-out 3,4,4,4,4 column volumes.And with gained elutriant difference called after Fr-1, Fr-2, Fr-3, Fr-4, Fr-5.With Fr-5 equal-volume silica gel mixed sample, using silica gel is 100 order purification on normal-phase silica gel, and pentaploid amasss silica gel column chromatography, and the silica gel of use is 200-300 order purification on normal-phase silica gel.Eluent is chloroform and methyl alcohol.The concentrating under reduced pressure elutriant uses dissolve with methanol, and the methanol gel column chromatography is used methanol-eluted fractions.Use TLC to detect the elutriant of collecting and suitably merge, obtain white powder, carry out the 1D-HNMR nuclear magnetic resonance spectroscopy, frequency is 400MHZ, and analytical results is δ 7.41,7.39,5.62, and 5.61. proves that it is uridylic.
Example 2:
The Phellinus crude extract is made by following method:
(1) fermentative medium formula in/100 milliliters of grams is:
W-Gum 3% glucose 2%
Peptone 0.5% yeast extract paste 0.5%
Sal epsom 0.5% potassium primary phosphate 0.05%
(2) the Phellinus bacterial classification is inoculated into ordinary method in the Erlenmeyer flask that liquid nutrient medium is housed, with 30 ℃ of temperature, the shaking flask rotating speed is 180r/min, and under the pH6 condition, vibrations were cultivated 15 days; In the cultivation when the pH value drops to 2.5, seed in the shaking flask is inoculated in the nutrient solution of 50L fermentor tank, with 30 ℃ of temperature, fermentor tank pressure 0.2 kg/cm, pH 3, air flow 0.5-1.1vvm, the condition that stirring velocity is 180 rev/mins, cultivated 15 days, and can utilize the phellinus igniarius mycelium fermentation liquid to prepare the Phellinus crude extract;
(3) get gained phellinus igniarius mycelium fermentation liquid in the step (2), with its concentrating under reduced pressure in a usual manner, make its volume be concentrated to 1/5 of original volume;
(4) be that 90% the ethanol fermented liquid after concentrated to above-mentioned steps (3) extracts with volume percent, wherein, the amount that adds ethanol is 4 times of concentrated solution volume, can make that alcohol concn reaches 70% in the extracting solution;
(5) to step (4) gained extracting solution under 55 ℃ of conditions, heated 2.5 hours; Separate with ordinary method, and remove impurity by cascade filtration, separate obtaining ethanol extract; With above-mentioned ethanol extract concentrating under reduced pressure in a usual manner, make its volume be concentrated to 1/10 of original volume;
(6) just the concentrated solution of step (5) gained carries out drying with the method for frozen drying, gets the Phellinus crude extract.
Above-mentioned crude extract is taken by weighing 100g and the stirring of equal-volume 100 order purification on normal-phase silica gel mixings, carry out the silica gel normal phase column chromatography.The chromatography stationary phase is 200-300 order purification on normal-phase silica gel, the high 0.7m of post, and diameter 10cm, eluent is for being respectively chloroform, chloroform: methyl alcohol=100:1, chloroform: methyl alcohol=50:1, chloroform: methyl alcohol=10:1, chloroform: methyl alcohol=5:1.With Fr-5 equal-volume silica gel mixed sample, using silica gel is 100 order purification on normal-phase silica gel, and pentaploid amasss silica gel column chromatography, and the silica gel of use is 200-300 order purification on normal-phase silica gel.Eluent is chloroform and methyl alcohol.Carry out the methanol gel column chromatography.TLC detects the elutriant of collecting and suitably merges, and drying under reduced pressure carries out the 1D-HNMR nuclear magnetic resonance spectroscopy, and frequency is 400MHZ, and analytical results is δ 7.41,7.39,5.62, and 5.61. proves that it is uridylic.
Claims (8)
1. the separation method of uridylic in the Phellinus bacterium, its step order is as follows:
(1) preparation Phellinus crude extract;
(2) ethanol throw out and the purification on normal-phase silica gel mixing with above-mentioned steps (1) gained stirs, and dry, carries out the silica gel normal phase column chromatography, uses eluent wash-out 2-7 time;
(3) collect last elutriant in the step (2), drying under reduced pressure with the equal-volume silica gel mixed sample, carries out the purification on normal-phase silica gel chromatography again, uses the eluent wash-out;
(4) elutriant in the collection above-mentioned steps (3), concentrating under reduced pressure uses dissolve with methanol, and the methanol gel column chromatography is used the eluent wash-out;
(5) elutriant of TLC detecting step (4), appropriateness merges elutriant, and high-pressure drying is uridylic.
As claimed in claim 1 a kind of from the Phellinus bacterium method of Separation of Benzene ethanol, it is characterized in that described Phellinus crude extract, made by following method:
(1) fermentative medium formula in/100 milliliters of grams is:
W-Gum 1-5% glucose 1-5%
Peptone 0.1-0.5% yeast extract paste 0.1-0.5%
Sal epsom 0.1-0.5% potassium primary phosphate 0.01-0.05%
(2) fermentation culture method of Phellinus crude extract is as claimed in claim 1, the Phellinus bacterial classification is inoculated into ordinary method in the Erlenmeyer flask that liquid nutrient medium is housed, and with 20～35 ℃ of temperature, the shaking flask rotating speed is 80～280r/min, under pH 3～8 conditions, vibrations were cultivated 7～15 days; In the cultivation when the pH value drops to 2.5～4, seed in the shaking flask is inoculated in the nutrient solution of 50L fermentor tank, with 20～35 ℃ of temperature, fermentor tank pressure 0.1～0.2 kg/cm, pH 3～8, air flow 0.5～1.1vvm, the condition that stirring velocity is 100～280 rev/mins, cultivated 7～15 days, and can utilize the phellinus igniarius mycelium fermentation liquid to prepare the Phellinus crude extract;
(3) get gained phellinus igniarius mycelium fermentation liquid in the step (2), with its concentrating under reduced pressure in a usual manner, make its volume be concentrated to 1/2～1/5 of original volume;
(4) be that 60～95% the ethanol fermented liquid after concentrated to above-mentioned steps (3) extracts with volume percent, wherein, the amount that adds ethanol is 2～5 times of concentrated solution volume, can make that alcohol concn reaches 60～90% in the extracting solution;
(5) to step (4) gained extracting solution under 50～70 ℃ of conditions, heated 1～2 hour; Separate with ordinary method, and remove impurity by cascade filtration, separate obtaining ethanol extract; With above-mentioned ethanol extract concentrating under reduced pressure in a usual manner, make its volume be concentrated to 1/5～1/10 of original volume;
(6) just the concentrated solution of step (5) gained carries out drying with the method for frozen drying, gets the Phellinus crude extract.
3. the separation method of uridylic in the Phellinus bacterium as claimed in claim 1 is characterized in that the alcohol concn described in the step (1) is 95% edible ethanol, and used volume is 5 times of volumes.
4. the separation method of uridylic in the Phellinus bacterium as claimed in claim 1 is characterized in that, the sample silica gel of mixing described in the step (1) is 100-200 order purification on normal-phase silica gel.
5. the separation method of uridylic in the Phellinus bacterium as claimed in claim 1 is characterized in that, the chromatographic silica gel described in the step (2) is positive 200-300 order, and eluent is chloroform and/or methyl alcohol.
6. the separation method of uridylic in the Phellinus bacterium as claimed in claim 1 is characterized in that the silica gel consumption described in the step (3) is equal-volume, and eluent is chloroform and methyl alcohol.
7.(please determine whether to need to add the ratio of chloroform and methyl alcohol, if add, answer corresponding modify embodiment)
The separation method of uridylic is characterized in that in the Phellinus bacterium as claimed in claim 1, and the gel described in the step (4) is Sephadex LH-20, and Sephadex LH-15, eluent are methyl alcohol.
8. the separation method of uridylic in the Phellinus bacterium as claimed in claim 1 is characterized in that, the described TLC of step (5) detects, and developping agent is chloroform: methyl alcohol=4:1-5:1.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182550A (en) * | 2007-11-16 | 2008-05-21 | 上海市农业科学院 | Flavonoids from phellinus, method of producing the same and use |
| CN102363749B (en) * | 2011-10-09 | 2012-11-28 | 东北林业大学 | Preparation method of Phellinus linteus mycelium |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182550A (en) * | 2007-11-16 | 2008-05-21 | 上海市农业科学院 | Flavonoids from phellinus, method of producing the same and use |
| CN102363749B (en) * | 2011-10-09 | 2012-11-28 | 东北林业大学 | Preparation method of Phellinus linteus mycelium |
Non-Patent Citations (2)
| Title |
|---|
| 李翠翠等: "桑黄液体发酵培养基优化的初步研究", 《中国食用菌》 * |
| 郭忠军: "桑黄液体发酵培养液初步研究", 《黑龙江医药》 * |
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