CN105777845B - The extracting method and purposes of antimicrobial component in a kind of Idesia polycarpa - Google Patents

The extracting method and purposes of antimicrobial component in a kind of Idesia polycarpa Download PDF

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CN105777845B
CN105777845B CN201410787536.2A CN201410787536A CN105777845B CN 105777845 B CN105777845 B CN 105777845B CN 201410787536 A CN201410787536 A CN 201410787536A CN 105777845 B CN105777845 B CN 105777845B
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ethyl acetate
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CN105777845A (en
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李耀亭
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Hubei Jiayun Chemical Technology Co ltd
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Anhui Nong Da Bioisystech Co Ltd
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Abstract

The present invention relates to a kind of extracting method of antimicrobial component in Idesia polycarpa and the purposes of extract.The extracting method of antimicrobial component has very high recovery rate and excellent separating effect in Idesia polycarpa of the present invention, various active compound can be obtained, the reactive compound extracted shows higher antibacterial activity to staphylococcus aureus, Escherichia coli and Candida albicans, is had a good application prospect in antibacterial field.

Description

The extracting method and purposes of antimicrobial component in a kind of Idesia polycarpa
Technical field
The present invention relates to the extracting method and purposes of antimicrobial component in a kind of Idesia polycarpa, belong to field of plant extraction.
Background technology
Idesia polycarpa, also known as water wax gourd, are the mutation of idesia.Aliphatic acid, phenols, sugar are mainly contained in its fruit Glucoside, alkaloid, vitamin E etc., and with certain bioactivity, it is widely used in antibacterial, sterilization, anti-oxidant, cardiac stimulant, drop The fields such as blood pressure.
Major part on the south the great demand applied based on Idesia polycarpa extract product broad spectrum activity, China Huanghe valley Province is for example:The ground such as Zhejiang, Jiangsu, Anhui, Hubei, Henan, Shandong, Guangdong, Jiangxi, Guizhou, Sichuan, Yunnan, Chongqing, Shaanxi There is large area manually to plant, research and development of products mechanism and manufacturer also arise at the historic moment.
At present, antibacterial Quality Research is extracted from natural plants has a lot, and the species of these extracts is main by volatilizing Oil, organic acid, alkaloid, tannin, some lactones etc..
For example, CN1740137A discloses a kind of method of the chlorogenic acid extracting and purifying from sunflower meal, and chlorogenic acid has Anti-inflammation, cholagogic, the effect stopped blooding and increase white blood cell count.
CN1789395 A are disclosed with antibacterial and/or bactericidal action Tibetan medical dracocephalum heterophyllum benth volatile oil and its prepared With the application in antibacterial and/or bactericidal action product.
CN101084989 A are disclosed while preparing the preparation side of kuh-seng total flavone extract and total alkaloid extract Method, kuh-seng total flavone extract and total alkaloid from sophora flavescens ait extract have antibacterial desinsection, antiviral, anti-inflammatory, available for antibacterial and The fields such as sterilization.
All swallows etc. (all swallows etc., non-grease chemical composition [J] research and development of natural products of water wax gourd pulp, 2003, 15(1):13-17) finding the medicinal extract after the ethanol extract petroleum ether degreasing of water wax gourd pericarp, (leather is blue to wax bacillus Family name's positive bacteria) growth there is obvious inhibitory action, and find that its effect experiment to Isolated Toad Heart shows the extraction Take thing that there is certain cardiotonic, but further activity research is not done to each monomeric compound.Ge Hongguang etc. (Ge Hongguang, Wu Wan moths, it is old to open natural research [J] Chinese oils, 1998,23 (6) in merit water wax gourd seeds:49-51) use baking oven When method tests water gourd seed extract antioxidation activity, it is found that it has very strong suppression lard oxidation.They are by water Gourd seed ethanol extract is with aqueous suspension, respectively with ethyl acetate, extracting n-butyl alcohol, and it is 4 to find n-butyl alcohol extract consumption ×l0-4Its inoxidizability has been better than 2 × l0 of consumption of 2,6- di-tert-butyl methyl phenols (BHT) during %-4%.
Based on its good biological medicine activity, researcher has also carried out the chemical constitution study to the plant.Zhou Yan Deng (all swallows etc., non-grease chemical composition [J] research and development of natural products of water wax gourd pulp, 2003,15 (1):13-17) The cis- cyclohexanediols of common compounds 1,2- and adjacent benzene two are also isolated from the n-butyl alcohol extract of water wax gourd pulp ethanol extract Phenol.(the Kim Seung Hyun etc., Idesolide such as Kim Seung Hyun:A New Spiro Compound from Idesia polycarpa [J] .Org.Lett., 2005,7 (15):3275-3277) separated from water wax gourd fruit methanolic extract To baroque alcohols material, and to obtaining the spiro-compound of a monomer in the chloroform portion of the methanolic extract, application NMR, MS and single crystal X-ray diffraction are identified and are named as idesolide.The, (Kim such as Kim Seung Hyun in 2007 Seung Hyun etc., Inhibitory activity of phenolic glycosidesfrom the fruits of Idesia polycaroa on lipopolysaccharide-induced nitric oxide production in BV2microglia[J].Planta Medica,2007,73(2):167-169) and from the second of water wax gourd fruit methanolic extract Sour second fat, which is partially separated, obtains 1-hydroxy-6-oxocyclohex-2-enecarboxylic acid methyl ester, The latter is probably the former catabolite.
Although it has been found that idesia platymiscium contains important phenolic glycosides, diterpene isoreactivity composition, Mao Yeshan Seeds of a tung oil tree fruit early has been used for the rural activities such as desinsection, weeding, but chemical composition and bioactivity report are less.
Thus, for prior art defect, it is contemplated that developing a kind of extraction side of antimicrobial component in Idesia polycarpa Method, using it is simple, efficiently extracting method extract four compounds, and its structure analyze and confirmed, respectively β-amyrin, cupreol, 20 carbonic acid, 6- hydroxyls -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] first Base] phenyl-β-D glucosides.Meanwhile, compound β-amyrin, cupreol, 6- hydroxyls -2- [[[(1- hydroxyl -6- oxos - 2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D glucosides are to staphylococcus aureus, Escherichia coli and Candida albicans table Reveal higher antibacterial activity, will have in fields such as antiseptic, bactericide, disinfectant, cleaning agent, cleaning agent, preservatives should Use prospect.
The content of the invention
In order to solve drawbacks described above, present inventor has performed concentrating on studies, after a large amount of creative works are paid, so that complete Into the present invention.
The present invention relates to the extracting method and purposes of antimicrobial component in a kind of Idesia polycarpa, the extracting method is not only simple It is single, convenient, and recovery rate is higher, while being shown to staphylococcus aureus, Escherichia coli and Candida albicans higher Antibacterial activity.More particularly it relates to which antimicrobial component is β-amyrin, cupreol and 6- hydroxyls in a kind of water wax gourd The extracting method of base -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D glucosides, and Their applications in antiseptic, bactericide, disinfectant, cleaning agent, cleaning agent, preservative field.
Specifically, in a first aspect, the invention provides a kind of extracting method of antimicrobial component in Idesia polycarpa, including Following steps:
(1) pericarp and seed are isolated from dry Idesia polycarpa fruit, dry powder is obtained after seed is crushed, with acetic acid second Ester is solvent microwave digestion 3-5 times, and microwave power is 500-1000W, each 10-20 minutes, extraction fluid, concentrated extracting solution Ethyl acetate extracts medicinal extract, separating obtained filter residue extracts 4 times with mass percent concentration for 70% ethanol again, every time 10 Hour, merge extract solution, be concentrated into no alcohol taste, obtain ethanol and extract medicinal extract;Ethanol is taken to extract medicinal extract, through 100-200 mesh silicagel columns, Dry method loading, silicagel column is successively eluted with dichloromethane, ethyl acetate and methanol, so as to be classified as 3 parts, respectively For dichloromethane fractions, ethyl acetate portion and methanol fractions.
(2) ethyl acetate obtained by step (1) is extracted into medicinal extract through solid phase column chromatography, entered with cyclohexane-acetone mixed solvent Row gradient elution, respectively obtains compound β-amyrin and compound cupreol;
(3) ethanol in above-mentioned steps (1) is extracted to the ethyl acetate portion obtained after the elution of medicinal extract chromatographic column, macropore is crossed and inhales Attached resin column, carries out gradient elution with petroleum ether-ethyl acetate mixed solvent, respectively obtains the carbonic acid CH of compound 203 (CH2)18COOH and 6- hydroxyls -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D glucose Glycosides.
Wherein, β-amyrin, cupreol, 6- hydroxyls -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] Oxygen] methyl] phenyl-β-D glucosides structural formula it is as follows:
In the water wax gourd of the present invention in the extracting method of antimicrobial component, the microwave power in the step (1) is 500- 1000W, for example, 500W, 600W, 700W, 800W, 900W or 1000W, more preferably 600-800W, most preferably 700W.
In the water wax gourd of the present invention in the extracting method of antimicrobial component, the concrete operations of the step (2) are as follows:Will step Suddenly ethyl acetate obtained by (1) extracts medicinal extract through solid phase column chromatography, and gradient elution, gradient are carried out with cyclohexane-acetone mixed solvent Elution mixed solvent cyclohexane, the volume ratio of acetone are followed successively by 30:1、25:1、20:1、15:1、10:1 and 5:1;Collect both Volume ratio is 30:1、25:1、20:1 eluted fraction, revolving removes solvent, dries, obtains compound β-amyrin;Collect Both volume ratios are 15:1、10:1 and 5:1 eluted fraction, revolving removes solvent, dries, obtains compound cupreol.
In the water wax gourd of the present invention in the extracting method of antimicrobial component, the concrete operations of the step (3) are as follows:Will be upper State ethanol in step (1) and extract the ethyl acetate portion obtained after the elution of medicinal extract chromatographic column, large pore resin absorption column is crossed, with oil Ether-ethyl acetate mixed solvent carries out gradient elution, gradient elution in the mixed solvent petroleum ether, ethyl acetate volume ratio successively For 25:1、20:1、15:1、10:1 and 5:1, collect 25:1 and 20:1 eluted fraction, revolving removes solvent, is dried to obtain chemical combination The carbonic acid CH of thing 203(CH2)18COOH;Collect 15:1、10:1 and 5:1 eluted fraction, revolving removes solvent, is dried to obtain 6- Hydroxyl -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D glucosides.
In the water wax gourd of the present invention in the extracting method of antimicrobial component, the solid phase column in the step (2) is neutral oxygen Change aluminium post.
Wherein, the granularity of the neutral alumina is 100-500 mesh, most preferably 100-200 mesh.
In the water wax gourd of the present invention in the extracting method of antimicrobial component, the macroporous absorbent resin in the step (3) is DM301 resins, AB-8 resins, DA201 resins, D101 resins, X-5 resins or DM130 resins.
Wherein, the macroporous absorbent resin is preferably AB-8 resins, DM301 resins, DA201 resins or D101 resins, Most preferably D101 resins.
Second aspect, the present invention relates to using the above method extract obtain β-amyrin, cupreol or 6- hydroxyls- 2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D glucosides.
The third aspect, the purposes of the reactive compound arrived the present invention relates to said extracted.
The inventors discovered that, obtained compound β-amyrin, cupreol, 6- hydroxyls are extracted by the inventive method Base -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D glucosides are to Staphylococcus aureus Bacterium, Escherichia coli and Candida albicans show higher antibacterial activity, thus may be used on antiseptic, bactericide, disinfectant, The fields such as cleaning agent, cleaning agent, preservative.
Embodiment
Below by specific embodiment, the present invention is described in detail, but these exemplary embodiments are only used for example Lift, and not the real protection scope to the present invention constitutes any type of any restriction.
Embodiment 1
(1) pericarp and seed are isolated from dry Idesia polycarpa fruit.Dry powder is obtained after seed is crushed, with acetic acid second Ester microwave digestion 5 times, microwave power is:700W, 15 minutes every time, concentrated extracting solution obtained ethyl acetate and extracts medicinal extract, separation The filter residue of gained is extracted 4 times with mass percent concentration for 70% ethanol again, 10 hours every time, is merged extract solution, is concentrated into Without alcohol taste, obtain ethanol and extract medicinal extract.Ethanol is taken to extract medicinal extract, through the silicagel column that specification is 100-200 mesh particle size ranges, in dry method Sample, silicagel column is successively with dichloromethane, ethyl acetate and methanol elution gradient.The result detected according to TLC, is classified as 3 Part, respectively dichloromethane fractions, ethyl acetate portion and methanol fractions.
(2) ethyl acetate obtained by step (1) is extracted into medicinal extract through 100-200 mesh neutral alumina progress column chromatography, with ring Hexane-acetone mixed solvent carries out gradient elution, and gradient elution mixed solvent cyclohexane, the volume ratio of acetone are followed successively by 30: 1、25:1、20:1、15:1、10:1 and 5:1;It is 30 to collect both volume ratios:1、25:1、20:1 eluted fraction, revolving is removed Solvent, dries, obtains compound β-amyrin;It is 15 to collect both volume ratios:1、10:1 and 5:1 eluted fraction, revolving Solvent is removed, dries, obtains compound cupreol.
(3) ethanol in above-mentioned steps (1) is extracted to the ethyl acetate portion obtained after the elution of medicinal extract chromatographic column, D101 is crossed big Macroporous adsorbent resin post, with petroleum ether-ethyl acetate mixed solvent carry out gradient elution, gradient elution in the mixed solvent petroleum ether, The volume ratio of ethyl acetate is followed successively by 25:1、20:1、15:1、10:1 and 5:1, collect 25:1 and 20:1 eluted fraction, revolving Solvent is removed, the carbonic acid CH of compound 20 is dried to obtain3(CH2)18COOH;Collect 15:1、10:1 and 5:1 eluted fraction, rotation Solvent is evaporated off, be dried to obtain 6- hydroxyls -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β - D glucosides.
Embodiment 2-6
500W, 600W, 800W, 900W, 1000W are replaced with respectively except microwave power will be extracted in the step of embodiment 1 (1) Outside, embodiment 2-6 is implemented with the same way with embodiment 1 respectively.
Embodiment 7-9
Except by D101 macroporous absorbent resins in the step of embodiment 1 (3) replace with respectively AB-8 resins, DM301 resins, Outside DA201 resins, embodiment 7-9 is implemented with the same way with embodiment 1.
The characterize data difference for four compounds that above-described embodiment 1-9 is obtained is as follows:
β-amyrin
m.p.:183-185℃.
IR(KBr)cm-1:2919、2872、1463、1034.
EI-MS m/z:426[M]+
1H-NMR(CDCl3,500MHz)δ:0.78(3H,s)、0.82(3H,s)、0.86(6H,s)、0.93(3H,s)、0.95 (3H, s), 1.04 (3H, s), 1.11 (3H, s), 5.18 (1H, t, J=3.4Hz, H-12), 3.22 (1H, dd, J=4.4, 11.2Hz, H-3 α), wherein 0.78 (3H, s), 0.81 (3H, s), 0.86 (6H, s), 0.92 (3H, s), 0.95 (3H, s), 1.01 (3H, s), 1.10 (3H, s) for 8 angular methyls it is unimodal, be pentacyclic triterpenoid;
13C-NMR(CDCl3)δ:38.6、27.5、79.1、39.6、55.1、18.2、32.5、38.6、47.3、37.1、 23.3、21.6、145.1、39.8、26.1、27.0、32.3、47.3、46.6、31.1、34.6、37.1、28.1、15.4、15.4、 16.6、26.1、38.2、33.1、23.5。
Cupreol
m.p.:135-138℃.
IR spectrum show-OH (3433cm-1) ,-C=C- groups (1630cm-1, it is weak).
EI-MS m/z:414[M]+
1H-NMR(CDCl3)δ:5.35 (1H, d, J=5.2Hz), 3.50 (1H, m), 1.01 (3H, s), 0.92 (3H, d, J= 6.8Hz), 0.91 (3H, d, J=6.7Hz), 0.84 (3H, t, J=7.3Hz), 0.82 (3H, d, J=7.2Hz), 0.66 (3H, s)。
13C-NMR(CDCl3):37.1、31.5、71.6、42.1、140.5、121.5、31.8、32.0、50.1、36.4、 21.0、39.6、42.1、56.6、24.2、28.0、56.0、11.6、19.2、36.0、18.6、34.0、26.0、45.7、29.0、 19.6、19.2、23.0、11.9。
20 carbonic acid
m.p.:47-48℃.
IR:- C=O (1707cm-1), long-chain CH2(2920、2851、1466、730cm-1),
EI-MS m/z:312.2[m]+、284.2、256.2、185.1、171.1、129.0、111.0、97.0、83.0。
1H-NMR(CDCl3)δ:0.75ppm(3H,CH3), there are 17 CH in 1-2ppm2, have 1 CH in 2-3ppm2
6- hydroxyls -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D glucosides
m.p.:152-153℃.
IR:Glycosyl (3422cm-1Place is wide and blunt peak) ,-C=C- (1636cm-1) ,-C=O (1740cm-1)、-C-O-C- (1077cm-1、1046cm-1)、CH2(2825cm-1、1474cm-1)。
EI-MS m/z:301.4、162.0、139.9、123.0、121.9.
1H-NMR(CD3OD)δ:7.06 (1H, t, J=7.7Hz), 6.86 (1H, d, J=7.6Hz), 6.81 (1H, dd, J= 7.7Hz), 6.11 (1H, m), 5.78 (1H, dd), 5.53 (1H, d, J=12.2Hz), 5.31 (1H, d, J=12.5Hz), 4.60 (1H, d, J=5.8Hz), 3.84 (1H, m), 3.76 (1H, m), 3.52 (3H, m), 3.42 (1H, m), 2.90 (1H, m), 2.63 (1H,m)、2.52(2H,m)。
13C-NMR(CD3OD):144.5、131.4、120.9、126.9、118.1、151.3、65.1、107.4、75.2、 77.9、80、78.4、62.4、79.3、129.6、132.8、27.2、36.9、207.6、171.8。
Comparative example 1
Except by " microwave digestion 5 times, microwave power is in embodiment 1:700W, every time 15 minutes " is replaced with " with acetic acid second Ester is that solvent is extracted 5 times at 40 DEG C, and each 2h " outside, implements this comparative example 1 with the same way with embodiment 1, obtains chemical combination Thing β-amyrin, cupreol, 20 carbonic acid and 6- hydroxyls -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] Oxygen] methyl] phenyl-β-D glucosides.
Comparative example 2-3
Except the mixed solvent cyclohexane-acetone in the step of embodiment 1 (2) is replaced with into cyclohexane-ethyl acetate, ring respectively Outside hexane-petroleum ether, this comparative example 2-3 is implemented with the same way with embodiment 1, detects and finds by TLC, in step (2) Middle β-amyrin and cupreol are difficult to separate, and cause its yield very low.
This proves, when changing the acetone of in the mixed solvent, there is significant impact for the separating effect of product.
Comparative example 4-5
Except the macroporous absorbent resin in the step of embodiment 1 (3) is replaced with respectively, " granularity is the silicagel column of 300-400 mesh Chromatogram " and " granularity is the neutral aluminum oxide column chromatography of 100-200 mesh " outside, this contrast are implemented with the same way with embodiment 1 Example 4-5, and obtain compound 6- hydroxyls -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D Glucoside.
By the weight divided by the gross weight of raw water gourd seed of each compound extracted in all embodiments and comparative example Measure and draw recovery rate, compound β-amyrin, cupreol, 20 carbonic acid and 6- hydroxyls -2- [[[(1- hydroxyl -6- oxygen Generation -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D glucosides recovery rate it is as shown in table 1.
Table 1
As can be seen from the above table:
1. when carrying out microwave abstracting, recovery rate will be significantly higher than recovery rate when not carrying out microwave abstracting, and work as microwave Power has best extraction effect when being 700W.
2. separated in step (3) using specific macroporous absorbent resin, recovery rate will be far above silica gel column chromatography And neutral aluminum oxide column chromatography, but the extraction effect of D101 resins is better than other resins.
3. when changing the component of elution mixed solvent in step (2), β-amyrin and β-paddy can be significantly affected The separation of sterol, it is seen that the type selecting of the mixed solvent in the step is very crucial and important.
Performance test and stability test
Compound β-amyrin, β-paddy steroid that the present invention that each embodiment is obtained by following measurings is extracted The sterilization of alcohol and 6- hydroxyls -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D- glucosides Performance.
Take reference culture:Staphylococcus aureus (ATCC25923), Escherichia coli (441490) bacterial strain are a little, connect respectively Plant in nutrient broth medium, 37 DEG C of culture 18h.Each bacterial strain nutrient broth culture for taking 18h to cultivate, is made with nutrient broth 10-3Dilute for testing.Extracting waste beads bacteria strain is a little, is inoculated in improvement Martin's culture medium, 35 DEG C of culture 24h.Take 24h The Candida albicans culture of culture, with improvement Martin's culture medium 10-3Dilute for testing.Matched somebody with somebody with doubling dilution (test tube method) Sample preparation product, i.e. test-compound are made into initial concentration for 10mg/ml respectively, take 0.1ml plus 5.9ml nutrient broth dilute filtrations standby With taking sterilizing test tubes 8 for each test-compound, the 1st pipe adds by reagent dilution 1ml, 2-8 pipe respectively plus 1ml battalion Meat soup is supported, takes by reagent dilution 1ml to add in the 2nd pipe respectively, takes 1ml to the 3rd to manage after mixing, dilutes successively, the 7th pipe is suctioned out 1ml is discarded, and the 8th pipe is not added with decoction as control.Often pipe adds dilution bacterium solution 0.1ml, 37 DEG C of culture 24h.Take out observation bacterium Growing state.Such as drug liquid tube muddiness, that is, bacterial growth is represented, for reagent thing without bacteriostasis;Represented if drug liquid tube is limpid thin Bacteria growing is suppressed, the decoction of the greatest dilution of its energy bacteria growing inhibiting, is the minimal inhibitory concentration of the medicine (MIC).Take ciprofloxacin hydrocloride tablets (Guangzhou white clouds pharmaceutical Co. Ltd, specification:0.25g/ pieces, are made into 0.05g/m1 solution), Nysfungin (Zhejiang Zhenyuan Pharmaceutical Co., Ltd, specification:500mg/ pieces, are made into 200mg/ml solution), as stated above, successively Dilution, culture, makees positive control, as a result see the table below 2.
Table 2
As can be seen from the above table, the present invention is extracted compound β-amyrin, cupreol and 6- hydroxyl -2- [[[(1- Hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D- glucosides have good bactericidal activity can be used for resist The fields such as microbial inoculum, bactericide, disinfectant, cleaning agent, cleaning agent, preservative.
It should be appreciated that the application of these embodiments is merely to illustrate the present invention and is not intended to limitation protection model of the invention Enclose.In addition, it will also be appreciated that after the technology contents of the present invention have been read, those skilled in the art can make each to the present invention Change, modification and/or variation are planted, all these equivalent form of values equally fall within the guarantor that the application appended claims are limited Within the scope of shield.

Claims (4)

1. the extracting method of antimicrobial component, comprises the following steps in a kind of Idesia polycarpa:
(1) pericarp and seed are isolated from dry Idesia polycarpa fruit, after seed is crushed dry powder, using ethyl acetate as Solvent microwave digestion 3-5 times, microwave power is 700W, each 10-20 minutes, and extraction fluid, concentrated extracting solution obtains acetic acid second Ester extracts medicinal extract, and separating obtained filter residue is extracted 4 times for 70% ethanol with mass percent concentration, 10 hours every time, closed again And extract solution, no alcohol taste is concentrated into, ethanol is obtained and extracts medicinal extract;Ethanol is taken to extract medicinal extract, through 100-200 mesh silicagel columns, in dry method Sample, silicagel column is successively eluted with dichloromethane, ethyl acetate and methanol, so as to be classified as 3 parts, respectively dichloro Methane moiety, ethyl acetate portion and methanol fractions;
(2) ethyl acetate obtained by step (1) is extracted into medicinal extract through solid phase column chromatography, ladder is carried out with cyclohexane-acetone mixed solvent Degree elution, respectively obtains compound β-amyrin and compound cupreol;
(3) ethanol in above-mentioned steps (1) is extracted to the ethyl acetate portion obtained after the elution of medicinal extract chromatographic column, macroporous absorption tree is crossed Fat post, carries out gradient elution with petroleum ether-ethyl acetate mixed solvent, respectively obtains the carbonic acid of compound 20 and 6- hydroxyls -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl-β-D glucosides;
The concrete operations of the step (2) are as follows:Ethyl acetate obtained by step (1) is extracted into medicinal extract through solid phase column chromatography, with ring Hexane-acetone mixed solvent carries out gradient elution, and gradient elution mixed solvent cyclohexane, the volume ratio of acetone are followed successively by 30: 1、25:1、20:1、15:1、10:1 and 5:1;It is 30 to collect both volume ratios:1、25:1、20:1 eluted fraction, revolving is removed Solvent, dries, obtains compound β-amyrin;It is 15 to collect both volume ratios:1、10:1 and 5:1 eluted fraction, revolving Solvent is removed, dries, obtains compound cupreol;
The concrete operations of the step (3) are as follows:Ethanol in above-mentioned steps (1) is extracted to the second obtained after the elution of medicinal extract chromatographic column Acetoacetic ester part, crosses large pore resin absorption column, and gradient elution is carried out with petroleum ether-ethyl acetate mixed solvent, and gradient elution is mixed Bonding solvent petrochina ether, the volume ratio of ethyl acetate are followed successively by 25:1、20:1、15:1、10:1 and 5:1, collect 25:1 and 20:1 Eluted fraction, revolving remove solvent, be dried to obtain the carbonic acid of compound 20;Collect 15:1、10:1 and 5:1 eluted fraction, Revolving remove solvent, be dried to obtain 6- hydroxyls -2- [[[(1- hydroxyl -6- oxo -2- cyclohexenyl groups) carbonyl] oxygen] methyl] phenyl - β-D glucosides;
Macroporous absorbent resin in the step (3) is D101 resins.
2. the method as described in claim 1, it is characterised in that:Solid phase column in the step (2) is neutral alumina column.
3. method as claimed in claim 2, it is characterised in that:The granularity of the neutral alumina is 100-500 mesh.
4. method as claimed in claim 3, it is characterised in that:The granularity of the neutral alumina is 100-200 mesh.
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