CN104628736A - Method for extracting galanthamine from lycoris plant - Google Patents

Method for extracting galanthamine from lycoris plant Download PDF

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CN104628736A
CN104628736A CN201510066820.5A CN201510066820A CN104628736A CN 104628736 A CN104628736 A CN 104628736A CN 201510066820 A CN201510066820 A CN 201510066820A CN 104628736 A CN104628736 A CN 104628736A
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lycoremine
lycoris
obtains
dry thing
silica gel
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CN104628736B (en
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田春莲
王鹏
刘小攀
覃基信
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Jishou University
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D491/00Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/02Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
    • C07D491/10Spiro-condensed systems
    • C07D491/107Spiro-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring

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Abstract

The invention discloses a method for extracting galanthamine from a lycoris plant. The method comprises the following steps: (1) extraction: weighing the treated lycoris powder, adding the lycoris powder into water with pH of 4.5 at a feed-liquid ratio of 1:10 and a unit proportion of g/mL; adding the mixed enzyme of cellulase accounting for 1.0-3.0% of the mass of the lycoris powder and pectinase, wherein the mass ratio of the cellulase to pectinase is 1:1; performing enzymolysis for 20-100min at 50 DEG C; performing ultrasonic treatment for 5-25min and centrifuging for 20min at 5,000r/min; and fetching the supernate to obtain galanthamine extract; and (2) purification: solvent extraction; adsorption by cation exchange resin; C18 reverse phase silica gel column chromatography; normal-phase silica gel column chromatography; recrystallization: dissolving the dried product III obtained in the previous step with ethanol, crystallizing to obtain a crude product of galanthamine, filtering and performing vacuum drying at 50-60 DEG C to obtain galanthamine. The method disclosed by the invention has the advantages of easiness in operation, short extraction time, high extraction rate, small dosage of solvent and relatively low cost; and the purifying process is environment-friendly and the purity is high and can reach 99.2%.

Description

A kind of method extracting lycoremine from lycoris plants
Technical field
The present invention relates to a kind of extracting method of lycoremine, especially relate to a kind of method extracting lycoremine from lycoris plants.
Background technology
In short-tube lycoris, the alkaloidal chemical synthesis process such as lycoremine has report, but from lycoris plants, extract the large important sources being still such material, in prior art, the extracting method of maryllidaceous alkaloid mainly contains the methods such as solvent-extraction process, ultrasonic extraction, microwave loss mechanisms, supercritical fluid extraction, and these methods generally all exist the shortcomings such as environmental pollution is serious, production cost is high.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the above-mentioned defect that prior art exists, provides a kind of method extracting lycoremine from lycoris plants that extraction time is short, solvent load is few, extraction yield is high, cost is low.
The technical solution adopted for the present invention to solve the technical problems is, a kind of method extracting lycoremine from lycoris plants, comprises the following steps:
(1) extract: take treated short-tube lycoris powder, with solid-liquid ratio 1:10, unit ratio is g/mL, adding pH is in the water of 4.5, add short-tube lycoris powder quality 1.0%-3.0% (preferred 2.0%-2.8%, more preferably 2.5%) cellulase and the mixed enzyme of polygalacturonase, the mass ratio of described cellulase and polygalacturonase is 1:1, enzymolysis 20-100min (preferred 40-80min at 50 DEG C, more preferably 60min), then ultrasonication 5-25min (preferred 15min-20min, more preferably 15min), the centrifugal 20min of 5000r/min, get supernatant liquor and namely obtain lycoremine extracting solution,
(2) purifying
1. solvent extraction: lycoremine extracting solution NaOH step (1) extracted regulates pH to 10, and 1:1 adds extraction agent trichloromethane by volume, shakes up, hold over night, take off a layer chloroform phase, HCl regulates pH to 2, suction filtration, obtains lycoremine extraction concentrated solution;
2. cationic exchange resin adsorption: by step 1. in extraction concentrated solution regulate pH to 1 ~ 6 (preferred pH is 2) D-001 type Zeo-karb through HCl, with loading speed 1-3BV/h (preferred 3BV/h) loading to saturated, wash-out is carried out with the elution rate of 3BV/h with 40%-80% (preferably 70%) ethanolic soln containing 0.5-2.5mol/L (preferred 1.5mol/L) ammoniacal liquor, drying, obtains dry thing I;
3. C 18reversed-phase silica gel column chromatography: C 18filler pre-treatment, by 20 times of quality in step 2. in the C of dry thing I 18filler is loaded in chromatography column, then with moving phase (the chromatography thing that moving phase: V (acetonitrile) ︰ V (phosphoric acid salt) is 16 ︰ 84) dissolving layer separates out, loading, adopt methanol-water solution gradation wash-out, collect elutriant, concentrated, vacuum lyophilization, obtains dry thing II;
4. purification on normal-phase silica gel column chromatography: by pretreated 20 times of quality in the column chromatography silica gel (200-300 order) of the step 3. dry thing II of gained with column diameter-post high wet method dress post, the ratio that described column diameter-post is high is 1:10 ~ 30 (preferred 1:10), the step 3. dry thing II of gained mixes with silica gel, add eluent to dissolve, described eluent is two kinds of solvent in sherwood oil, ethyl acetate, chloroform, acetone, methyl alcohol; Dry method loading after evaporating solvent, wash-out, collects elutriant, and concentrated, vacuum lyophilization, obtains dry thing III;
5. recrystallization: 4. the dry thing III of gained is through dissolve with ethanol by step, and recrystallize obtains lycoremine crude product, filters, obtains lycoremine 50 ~ 60 DEG C of vacuum-dryings.
Further, described step 4. in, eluent is sherwood oil and ethyl acetate, and the volume ratio of described ethyl acetate and sherwood oil is 8.4:1.6.
Further, described lycoris plants is Lycoris aurea, Lycoris radiata, rose short-tube lycoris, straw short-tube lycoris or Lycoris (preferred Lycoris aurea).
Further, described short-tube lycoris powder preferred Lycoris aurea bulb powder.
Compared with prior art, the present invention is simple to operate, and extraction time is short, extraction yield is high, extraction time is few, solvent load is few, cost is lower, and adopt ultrasonic synergistic Enzymatic Extraction, lycoremine yield is 0.02840%; Purifying process environmental protection, and purity is high, can reach 99.2%.
Accompanying drawing explanation
Fig. 1 is that enzyme dosage of the present invention affects schematic diagram to lycoremine yield;
Fig. 2 is that enzymolysis time of the present invention affects schematic diagram to lycoremine yield;
Fig. 3 is that ultrasonic time of the present invention affects schematic diagram to lycoremine yield.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment 1
The present embodiment comprises the following steps: accurately take treated short-tube lycoris powder 2.0g, with solid-liquid ratio 1:10, unit is g/mL, adding pH is in the water of 4.5, adds the cellulase of raw materials quality 1.0%-3.0% and the mixed enzyme of polygalacturonase respectively, enzymolysis 20-100min at 50 DEG C, then ultrasonication 5-25min, the centrifugal 20min of 5000r/min, gets supernatant liquor, obtains lycoremine extracting solution;
(2) purifying
1. solvent extraction: lycoremine extracting solution NaOH step (1) extracted regulates pH to 10, and 1:1 adds extraction agent trichloromethane by volume, shakes up, hold over night, take off a layer chloroform phase, HCl regulates pH to 2, suction filtration, obtains lycoremine extraction concentrated solution;
2. cationic exchange resin adsorption: by step 1. in extraction concentrated solution through HCl regulate pH be 2, with D-001 type Zeo-karb, with loading speed 3BV/h loading to saturated, wash-out is carried out with the elution rate of 3BV/h with 70% ethanolic soln containing 1.5mol/L ammoniacal liquor, drying, obtains dry thing I;
3. C 18reversed-phase silica gel column chromatography: C 18filler pre-treatment, by 20 times of quality in step 2. in the C of dry thing I 18filler is loaded in chromatography column, then with moving phase (the chromatography thing that moving phase: V (acetonitrile) ︰ V (phosphoric acid salt) is 16 ︰ 84) dissolving layer separates out, loading, adopt methanol-water solution gradation wash-out, collect elutriant, concentrated, vacuum lyophilization, obtains dry thing II;
4. purification on normal-phase silica gel column chromatography: by pretreated 20 times of quality in the column chromatography silica gel (200-300 order) of the step 3. dry thing II of gained with column diameter-post high wet method dress post, the ratio that described column diameter-post is high is 1:10, the step 3. dry thing II of gained mixes with silica gel, add eluent to dissolve, described eluent is two kinds of solvent in sherwood oil, ethyl acetate, chloroform, acetone, methyl alcohol; Dry method loading after evaporating solvent, wash-out, collects elutriant, and concentrated, vacuum lyophilization, obtains dry thing III;
5. recrystallization: 4. the dry thing III of gained is through dissolve with ethanol by step, and recrystallize obtains lycoremine crude product, filters, obtains 50 ~ 60 DEG C of vacuum-dryings the lycoremine that purity is 99.2%.
Step 4. in, eluent is sherwood oil and ethyl acetate, and the volume ratio of described ethyl acetate and sherwood oil is 8.4:1.6.
With reference to accompanying drawing 1, enzyme dosage affect situation, accurately take treated short-tube lycoris powder 2.000g, add the water 20mL that pH is 4.5, add the cellulase of raw materials quality 1.0%, 1.5%, 2.0%, 2.5%, 3.0% and the mixed enzyme of polygalacturonase respectively, enzymolysis 1h at 50 DEG C, supersound process 15min, the centrifugal 20min of 5000r/min, gets supernatant liquor, is settled to 50mL.Result shows, and within the scope of 1%-2.5%, lycoremine yield raises with the increase of enzyme dosage, and enzyme dosage is the best results of 2.5%.
With reference to accompanying drawing 2, the impact of enzymolysis time, take short-tube lycoris powder 2.000g, add the water 20mL that pH is 4.5, add the cellulase of raw materials quality 2.0% and the mixed enzyme of polygalacturonase, at 50 DEG C enzymolysis 20,40,60,80,100min, supersound process 15min, the centrifugal 20min of 5000r/min, gets supernatant liquor, is settled to 50mL.Result is known, and enzymolysis time is in 20-60min, and lycoremine yield increases in time and raises, and slightly reduces afterwards.60min best results.
With reference to accompanying drawing 3, the impact of ultrasonic time, takes short-tube lycoris powder 2.000g, adds the water 20mL that pH is 4.5, add the cellulase of raw materials quality 2.0% and the mixed enzyme of polygalacturonase, 50 DEG C of enzymolysis 1h, then supersound process 5,10,15,20, the centrifugal 20min of 25min, 5000r/min, get supernatant liquor, be settled to 50mL, lycoremine yield increases with the growth of sonication treatment time in 5-15min, reaches maximum value during 15min.
With lycoremine yield for index, carry out intuitive analysis and the results of analysis of variance in table 1, table 2.
Table 1 ultrasonic synergistic Enzymatic Extraction lycoremine orthogonal design and result
The variance analysis of table 2 ultrasonic synergistic Enzymatic Extraction lycoremine
Soruces of variation Deviation square Degree of freedom All square F value P value
A 7.152 2 3.576 12.460 <0.1
B 15.107 2 7.554 26.319 <0.05
C 13.105 2 6.552 22.831 <0.05
Error 0.57
Summation 35.934
By table 1 intuitive analysis, known lycoremine optimum extraction process is A 2b 2c 1.According to variance analysis (table 2), enzymolysis time, ultrasonic time are on the impact of lycoremine yield significantly (P < 0.05); The extraction of enzyme dosage on lycoremine has impact (P < 0.1).The each factor primary and secondary order affecting lycoremine yield is enzymolysis time > ultrasonic time > enzyme dosage.The optimal procedure parameters of ultrasonic synergistic Enzymatic Extraction lycoremine is enzymolysis time 1.0h, ultrasonic time 10min, enzyme dosage 2.5%.
Be 0.02840% in this Optimal technique process lycoremine yield.
Comparative example 1.
Lycoremine in ultrasonic-assisted extraction short-tube lycoris: use the H of 0.5% 2sO 4the aqueous solution, solid-liquid ratio 1:10 (g:mL), lixiviate 2.5h then ultrasonic treatment time 30min under 70 DEG C of water-baths, extract 2 times with this understanding, lycoremine yield is 0.02530%.
Compared with embodiment 1, lycoremine yield is low.
Comparative example 2.
Lycoremine in Enzymatic Extraction short-tube lycoris: adding pH with solid-liquid ratio 1:10 (g:mL) is in the water of 4.5, add cellulase and polygalacturonase mixed enzyme enzymolysis 2h under 50 DEG C of water-baths of 4%, extract 2 times with this understanding, lycoremine yield is 0.02940%.
Compared with embodiment 1, though embodiment 1 lycoremine yield is lower than the present embodiment enzymolysis process 3.42%, but the enzyme dosage that embodiment 1 is extracted is 62.5% of simple enzymolysis process, enzymolysis time only has 1/2 of the present embodiment enzymolysis process, therefore consider from the angle of economy, embodiment 1 is carried out lycoremine extraction and is had larger advantage.

Claims (6)

1. from lycoris plants, extract a method for lycoremine, it is characterized in that, comprise the following steps:
(1) extract: take treated short-tube lycoris powder, with solid-liquid ratio 1:10, unit ratio is g/mL, adding pH is in the water of 4.5, adds the cellulase of short-tube lycoris powder quality 1.0%-3.0% and the mixed enzyme of polygalacturonase, and the mass ratio of described cellulase and polygalacturonase is 1:1, enzymolysis 20-100min at 50 DEG C, then the centrifugal 20min of ultrasonication 5-25min, 5000r/min, gets supernatant liquor and namely obtains lycoremine extracting solution;
(2) purifying:
1. solvent extraction: lycoremine extracting solution NaOH step (1) extracted regulates pH to 10, and 1:1 adds extraction agent trichloromethane by volume, shakes up, hold over night, take off a layer chloroform phase, HCl regulates pH to 2, suction filtration, obtains lycoremine extraction concentrated solution;
2. cationic exchange resin adsorption: extract concentrated solution through HCl adjustment pH to 1 ~ 6 (with D-001 type Zeo-karb by 1. middle for step, with loading speed 1-3BV/h loading to saturated, wash-out is carried out with the elution rate of 3BV/h with the 40%-80% ethanolic soln containing 0.5-2.5mol/L ammoniacal liquor, drying, obtains dry thing I;
3. C 18reversed-phase silica gel column chromatography: C 18filler pre-treatment, by 20 times of quality in step 2. in the C of dry thing I 18filler is loaded in chromatography column, then with the chromatography thing that moving phase dissolving layer separates out, and loading, adopt methanol-water solution gradation wash-out, collect elutriant, concentrated, vacuum lyophilization, obtains dry thing II;
4. purification on normal-phase silica gel column chromatography: by pretreated 20 times of quality in the column chromatography silica gel of the step 3. dry thing II of gained with column diameter-post high wet method dress post, the ratio that described column diameter-post is high is 1:10 ~ 30, the step 3. dry thing II of gained mixes with silica gel, add eluent to dissolve, described eluent is two kinds of solvent in sherwood oil, ethyl acetate, chloroform, acetone, methyl alcohol; Dry method loading after evaporating solvent, wash-out, collects elutriant, and concentrated, vacuum lyophilization, obtains dry thing III;
5. recrystallization: 4. the dry thing III of gained is through dissolve with ethanol by step, and recrystallize obtains lycoremine crude product, filters, obtains lycoremine 50 ~ 60 DEG C of vacuum-dryings.
2. the method extracting lycoremine from lycoris plants according to claim 1, is characterized in that, comprise the following steps:
(1) extract: take treated short-tube lycoris powder, with solid-liquid ratio 1:10, unit ratio is g/mL, adding pH is in the water of 4.5, adds the cellulase of short-tube lycoris powder quality 2.0%-2.8% and the mixed enzyme of polygalacturonase, and the mass ratio of described cellulase and polygalacturonase is 1:1, enzymolysis 40-80min at 50 DEG C, then the centrifugal 20min of ultrasonication 5-25min, 5000r/min, gets supernatant liquor and namely obtains lycoremine extracting solution;
(2) purifying
1. solvent extraction: lycoremine extracting solution NaOH step (1) extracted regulates pH to 10, and 1:1 adds extraction agent trichloromethane by volume, shakes up, hold over night, take off a layer chloroform phase, HCl regulates pH to 2, suction filtration, obtains lycoremine extraction concentrated solution;
2. cationic exchange resin adsorption: by step 1. in extraction concentrated solution through HCl regulate pH to 2, with D-001 type Zeo-karb, with loading speed 3BV/h loading to saturated, wash-out is carried out with the elution rate of 3BV/h with 70% ethanolic soln containing 1.5mol/L ammoniacal liquor, drying, obtains dry thing I;
3. C 18reversed-phase silica gel column chromatography: C 18filler pre-treatment, by 20 times of quality in step 2. in the C of dry thing I 18filler is loaded in chromatography column, then with the chromatography thing that moving phase dissolving layer separates out, and loading, adopt methanol-water solution gradation wash-out, collect elutriant, concentrated, vacuum lyophilization, obtains dry thing II;
4. purification on normal-phase silica gel column chromatography: by pretreated 20 times of quality in the column chromatography silica gel of the step 3. dry thing II of gained with column diameter-post high wet method dress post, the ratio that described column diameter-post is high is 1:10, the step 3. dry thing II of gained mixes with silica gel, add eluent to dissolve, described eluent is two kinds of solvent in sherwood oil, ethyl acetate, chloroform, acetone, methyl alcohol; Dry method loading after evaporating solvent, wash-out, collects elutriant, and concentrated, vacuum lyophilization, obtains dry thing III;
5. recrystallization: 4. the dry thing III of gained is through dissolve with ethanol by step, and recrystallize obtains lycoremine crude product, filters, obtains lycoremine 50 ~ 60 DEG C of vacuum-dryings.
3. the method extracting lycoremine from lycoris plants according to claim 1 and 2, is characterized in that, described step 4. in, eluent is sherwood oil and ethyl acetate, and the volume ratio of described ethyl acetate and sherwood oil is 8.4:1.6.
4. the method extracting lycoremine from lycoris plants according to claim 1 and 2, is characterized in that, described lycoris plants is Lycoris aurea, Lycoris radiata, rose short-tube lycoris, straw short-tube lycoris or Lycoris.
5. the method extracting lycoremine from lycoris plants according to claim 4, is characterized in that, described lycoris plants is Lycoris aurea.
6. the method extracting lycoremine from lycoris plants according to any one of claim 1 or 2, is characterized in that, described lycoris plants powder is Lycoris aurea bulb powder.
CN201510066820.5A 2015-02-07 2015-02-07 A kind of method extracting galantamine from lycoris plants Active CN104628736B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106967080A (en) * 2017-04-10 2017-07-21 吉首大学 A kind of method that galanthamine is extracted from short-tube lycoris
CN107462656A (en) * 2017-07-04 2017-12-12 上海市农业科学院 A kind of method of galanthamine content in quick detection amrallid

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101704822A (en) * 2009-10-20 2010-05-12 南京荣世医药科技有限公司 Method for preparing galanthamine
CN101781305A (en) * 2010-03-23 2010-07-21 泰州市今朝伟业精细化工有限公司 Method for artificially synthesizing galanthamine
CN101157947B (en) * 2007-09-13 2011-04-20 华中科技大学 Method for extracting active alkaloid from lycoris herb
CN103772403A (en) * 2014-02-27 2014-05-07 湖南中医药大学 Method for extracting galanthamine by using lycoris aurea

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101157947B (en) * 2007-09-13 2011-04-20 华中科技大学 Method for extracting active alkaloid from lycoris herb
CN101704822A (en) * 2009-10-20 2010-05-12 南京荣世医药科技有限公司 Method for preparing galanthamine
CN101781305A (en) * 2010-03-23 2010-07-21 泰州市今朝伟业精细化工有限公司 Method for artificially synthesizing galanthamine
CN103772403A (en) * 2014-02-27 2014-05-07 湖南中医药大学 Method for extracting galanthamine by using lycoris aurea

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106967080A (en) * 2017-04-10 2017-07-21 吉首大学 A kind of method that galanthamine is extracted from short-tube lycoris
CN107462656A (en) * 2017-07-04 2017-12-12 上海市农业科学院 A kind of method of galanthamine content in quick detection amrallid

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