CN114085294B - 一种藏黄连多糖硒纳米粒结构表征及其活性研究方法 - Google Patents
一种藏黄连多糖硒纳米粒结构表征及其活性研究方法 Download PDFInfo
- Publication number
- CN114085294B CN114085294B CN202111365664.4A CN202111365664A CN114085294B CN 114085294 B CN114085294 B CN 114085294B CN 202111365664 A CN202111365664 A CN 202111365664A CN 114085294 B CN114085294 B CN 114085294B
- Authority
- CN
- China
- Prior art keywords
- tibetan
- coptis
- polysaccharide
- beaker
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 241000218202 Coptis Species 0.000 title claims abstract description 168
- 235000002991 Coptis groenlandica Nutrition 0.000 title claims abstract description 168
- 239000011669 selenium Substances 0.000 title claims abstract description 148
- 229910052711 selenium Inorganic materials 0.000 title claims abstract description 141
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 131
- 150000004676 glycans Chemical class 0.000 title claims abstract description 107
- 229920001282 polysaccharide Polymers 0.000 title claims abstract description 107
- 239000005017 polysaccharide Substances 0.000 title claims abstract description 107
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000000694 effects Effects 0.000 title abstract description 18
- 238000011160 research Methods 0.000 title abstract description 13
- 229940091258 selenium supplement Drugs 0.000 claims abstract description 140
- 239000002245 particle Substances 0.000 claims abstract description 18
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 15
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 15
- BVTBRVFYZUCAKH-UHFFFAOYSA-L disodium selenite Chemical compound [Na+].[Na+].[O-][Se]([O-])=O BVTBRVFYZUCAKH-UHFFFAOYSA-L 0.000 claims abstract description 12
- 229960001471 sodium selenite Drugs 0.000 claims abstract description 12
- 239000011781 sodium selenite Substances 0.000 claims abstract description 12
- 235000015921 sodium selenite Nutrition 0.000 claims abstract description 12
- 239000000243 solution Substances 0.000 claims description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000003756 stirring Methods 0.000 claims description 27
- 239000012153 distilled water Substances 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 18
- 239000011259 mixed solution Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000006228 supernatant Substances 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 238000009777 vacuum freeze-drying Methods 0.000 claims description 11
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 8
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 239000013049 sediment Substances 0.000 claims description 7
- 229960005070 ascorbic acid Drugs 0.000 claims description 4
- 235000010323 ascorbic acid Nutrition 0.000 claims description 4
- 239000011668 ascorbic acid Substances 0.000 claims description 4
- 238000000502 dialysis Methods 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- 239000013589 supplement Substances 0.000 claims description 4
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 4
- 239000012498 ultrapure water Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims 1
- 241000037740 Coptis chinensis Species 0.000 abstract description 41
- 238000012360 testing method Methods 0.000 abstract description 24
- 230000003078 antioxidant effect Effects 0.000 abstract description 13
- 238000012512 characterization method Methods 0.000 abstract description 8
- 239000003963 antioxidant agent Substances 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 7
- 238000002441 X-ray diffraction Methods 0.000 abstract description 6
- IQFVPQOLBLOTPF-HKXUKFGYSA-L congo red Chemical compound [Na+].[Na+].C1=CC=CC2=C(N)C(/N=N/C3=CC=C(C=C3)C3=CC=C(C=C3)/N=N/C3=C(C4=CC=CC=C4C(=C3)S([O-])(=O)=O)N)=CC(S([O-])(=O)=O)=C21 IQFVPQOLBLOTPF-HKXUKFGYSA-L 0.000 abstract description 6
- 230000004071 biological effect Effects 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 4
- 239000003674 animal food additive Substances 0.000 abstract description 4
- 231100000135 cytotoxicity Toxicity 0.000 abstract description 4
- 230000003013 cytotoxicity Effects 0.000 abstract description 4
- 235000013373 food additive Nutrition 0.000 abstract description 4
- 239000002778 food additive Substances 0.000 abstract description 4
- 231100000419 toxicity Toxicity 0.000 abstract description 4
- 230000001988 toxicity Effects 0.000 abstract description 4
- 238000000862 absorption spectrum Methods 0.000 abstract description 3
- 238000002329 infrared spectrum Methods 0.000 abstract 1
- 238000012827 research and development Methods 0.000 abstract 1
- 238000002835 absorbance Methods 0.000 description 27
- 238000010521 absorption reaction Methods 0.000 description 22
- OHDRQQURAXLVGJ-HLVWOLMTSA-N azane;(2e)-3-ethyl-2-[(e)-(3-ethyl-6-sulfo-1,3-benzothiazol-2-ylidene)hydrazinylidene]-1,3-benzothiazole-6-sulfonic acid Chemical compound [NH4+].[NH4+].S/1C2=CC(S([O-])(=O)=O)=CC=C2N(CC)C\1=N/N=C1/SC2=CC(S([O-])(=O)=O)=CC=C2N1CC OHDRQQURAXLVGJ-HLVWOLMTSA-N 0.000 description 19
- 238000012258 culturing Methods 0.000 description 14
- 238000002156 mixing Methods 0.000 description 13
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 12
- 230000002000 scavenging effect Effects 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 150000003254 radicals Chemical class 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 238000004113 cell culture Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- -1 DPPH free radical Chemical class 0.000 description 6
- 230000003110 anti-inflammatory effect Effects 0.000 description 6
- 235000006708 antioxidants Nutrition 0.000 description 6
- HHEAADYXPMHMCT-UHFFFAOYSA-N dpph Chemical compound [O-][N+](=O)C1=CC([N+](=O)[O-])=CC([N+]([O-])=O)=C1[N]N(C=1C=CC=CC=1)C1=CC=CC=C1 HHEAADYXPMHMCT-UHFFFAOYSA-N 0.000 description 6
- 239000012488 sample solution Substances 0.000 description 6
- 238000007865 diluting Methods 0.000 description 5
- 238000000338 in vitro Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 230000000638 stimulation Effects 0.000 description 5
- 230000002292 Radical scavenging effect Effects 0.000 description 4
- GLEVLJDDWXEYCO-UHFFFAOYSA-N Trolox Chemical compound O1C(C)(C(O)=O)CCC2=C1C(C)=C(C)C(O)=C2C GLEVLJDDWXEYCO-UHFFFAOYSA-N 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 230000004663 cell proliferation Effects 0.000 description 4
- 239000011790 ferrous sulphate Substances 0.000 description 4
- 235000003891 ferrous sulphate Nutrition 0.000 description 4
- 230000007760 free radical scavenging Effects 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 229920002558 Curdlan Polymers 0.000 description 3
- 239000001879 Curdlan Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 3
- 229940078035 curdlan Drugs 0.000 description 3
- 235000019316 curdlan Nutrition 0.000 description 3
- 238000012844 infrared spectroscopy analysis Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 102000039446 nucleic acids Human genes 0.000 description 3
- 108020004707 nucleic acids Proteins 0.000 description 3
- 150000007523 nucleic acids Chemical class 0.000 description 3
- 230000035755 proliferation Effects 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 2
- 241000382298 Lagotis Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- MGJZITXUQXWAKY-UHFFFAOYSA-N diphenyl-(2,4,6-trinitrophenyl)iminoazanium Chemical compound [O-][N+](=O)C1=CC([N+](=O)[O-])=CC([N+]([O-])=O)=C1N=[N+](C=1C=CC=CC=1)C1=CC=CC=C1 MGJZITXUQXWAKY-UHFFFAOYSA-N 0.000 description 2
- HEILIGJNYTWOHU-UHFFFAOYSA-N ethanol 2-hydroxybenzoic acid Chemical compound CCO.OC(=O)C1=CC=CC=C1O HEILIGJNYTWOHU-UHFFFAOYSA-N 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 2
- 230000036039 immunity Effects 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 210000004185 liver Anatomy 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000000144 pharmacologic effect Effects 0.000 description 2
- 239000013641 positive control Substances 0.000 description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 2
- 239000012224 working solution Substances 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 206010016952 Food poisoning Diseases 0.000 description 1
- 208000019331 Foodborne disease Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010023126 Jaundice Diseases 0.000 description 1
- 241000635276 Lagotis glauca Species 0.000 description 1
- 101000878457 Macrocallista nimbosa FMRFamide Proteins 0.000 description 1
- 208000037093 Menstruation Disturbances Diseases 0.000 description 1
- 206010027339 Menstruation irregular Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000013557 Plantaginaceae Species 0.000 description 1
- 208000004880 Polyuria Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000011481 absorbance measurement Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000035619 diuresis Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 210000002216 heart Anatomy 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 206010036067 polydipsia Diseases 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/20—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/225—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion
- G01N23/2251—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion using incident electron beams, e.g. scanning electron microscopy [SEM]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/5005—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
- G01N33/5008—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/5005—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
- G01N33/5008—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
- G01N33/5044—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics involving specific cell types
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2500/00—Screening for compounds of potential therapeutic value
- G01N2500/10—Screening for compounds of potential therapeutic value involving cells
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Molecular Biology (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Cell Biology (AREA)
- Medicinal Chemistry (AREA)
- Biotechnology (AREA)
- Food Science & Technology (AREA)
- Microbiology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Toxicology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Sustainable Development (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明提供一种藏黄连多糖硒纳米粒结构表征及其活性研究方法,涉及植物化学研究领域。该藏黄连多糖硒纳米粒结构表征的研究方法,包括以下方法:A)粒径分布;B)红外光谱分析;C)扫描电子显微镜分析;D)X射线衍射分析;E)紫外可见光吸收光谱;F)刚果红测试。通过从藏黄连中提取分离藏黄连多糖,去除蛋白后再将去蛋白藏黄连多糖还原亚硒酸钠合成藏黄连多糖‑硒纳米颗粒,经天然多糖还原无机硒如亚硒酸钠,得到的多糖‑硒纳米颗粒具有粒径小,与无机硒比,其生物活性更高,并且毒性较低,研究其结构表征,抗氧化活性和细胞毒性,为研发新型的抗氧化型食品添加剂或饲料添加剂提供理论依据,值得大力推广。
Description
技术领域
本发明涉及植物化学研究技术领域,具体为一种藏黄连多糖硒纳米粒结构表征及其活性研究方法。
背景技术
藏黄连是玄参科植物圆穗兔耳草和全缘叶兔耳草的根,主要分布于西藏、四川等地,又名洪连、兔耳草,性寒,味苦、甘,入肺、心、肝经。具有清热解毒,利湿平肝,行经调血之功效。主治发热烦渴,肺热咳嗽,头痛眩晕,湿热黄疸,月经不调,药食中毒,现代植物化学研究表明,在草本植物中,植物根部活性成分较多,其中多糖的占比较大,而且作用效果明显,是值得关注的重要活性成分,多糖具有调节免疫、抗病毒、抗炎症、抗氧化等生物活性。微量元素是动植物体不可缺少的重要成分,硒是这些微量元素中尤为重要的一种,在药理活性上有调节免疫、抗炎等多种药理活性。
无机硒虽容易获得,但其使用安全范围极窄,不易把握;有机硒具有较高的生物相容性,易被机体吸收,但自然界中存在的有机硒的含量很低,不能满足人们的需求。
发明内容
(一)解决的技术问题
针对现有技术的不足,本发明提供了一种藏黄连多糖硒纳米粒结构表征及其活性研究方法,解决了自然界中存在的有机硒的含量很低,无法满足人们的需求的问题。
(二)技术方案
为实现以上目的,本发明通过以下技术方案予以实现:一种藏黄连多糖硒纳米粒的制备方法,包括以下步骤:
S1.提取分离
称取450~500g藏黄连放入粉碎机内粉碎,使用70~80目的筛网对粉碎后的藏黄连粉末进行筛分,将筛分下的粉末放入烧杯内,向烧杯内加入蒸馏水,将烧杯静置对藏黄连粉末浸泡10~12h,随后将烧杯内混合液体倒入煎煮锅中,煎煮2~2.5h,重复煎煮2~3次后将煎煮锅内液体倒入离心管放入离心机中,以1500~2500r/min的转速离心3~5min,将离心后的液体放入旋转蒸发仪内浓缩至500mL,将浓缩液体取出放入烧杯内,再向烧杯内加入无水乙醇,同时进行搅拌,无水乙醇添加完毕后停止搅拌,将搅拌后的溶液静置10~12h后,取烧杯底部沉淀物放入真空冷冻干燥机中,以-50~-60℃的温度进行真空冷凝干燥,制得藏黄连多糖;
S2.去除蛋白
使用烧杯配制藏黄连多糖浓度为10mg/mL的溶液1740mL,再向烧杯内加入60mLSevag混合液,对烧杯内进行搅拌,持续搅拌45~50min后静置30~40min分层,取上层清液去除下层沉淀,将上层清液再次放入搅拌罐中加入60mL Sevag混合液,重复操作8~10次后,将最终上层清液放入真空冷冻干燥机中,以-50~-60℃的温度进行真空冷冻干燥,制得去蛋白藏黄连多糖;
S3.最终制备
制备0.5~3.0mg/mL的去蛋白藏黄连多糖溶液,将溶液加入到烧杯内,向烧杯内加入20mL的50mM亚硒酸钠溶液,在避光环境下持续搅拌3h后,向烧杯内滴加20mL的50mM抗坏血酸溶液,再向烧杯内加入超纯水将烧杯内体积补至200mL,继续在避光条件下持续搅拌12h,反应结束后将混合液装入截留分子量为8000~12000的透析袋中,在4℃的外界温度条件下避光使用蒸馏水透析72h,取透析后的反应液测量粒径,将反应液放入真空冷冻干燥机内,以-50~-60℃的温度进行真空冷冻干燥,制得藏黄连多糖-硒纳米粒。
优选的,所述S1步骤提取分离中,藏黄连粉末与蒸馏水的重量比为1:15,浓缩液体与无水乙醇的体积比为1:4。
优选的,所述S2步骤去除蛋白中 Sevag混合液为正丁醇:三氯甲烷=1:4的混合溶液。
优选的,一种藏黄连多糖硒纳米粒结构表征的研究方法,包括以下方法:
A).粒径分布
取藏黄连多糖-硒纳米粒,配制成1mg/mL的样品溶液,再使用纳米粒度仪检测其粒径分布;
B).红外光谱分析
分别称取2mg的去蛋白藏黄连多糖、藏黄连多糖-硒纳米粒和硒纳米粒,将称取的材料分别放入玛瑙研钵中,并向研钵内加入10mg的溴化钾粉末混合研磨均匀,然后将研磨后的混合物放入压片机内压制成片,再将片状物放入红外光谱仪中以400~4000cm-1 的范围进行扫描;
C).扫描电子显微镜分析
称取2mg干燥的藏黄连多糖-硒纳米粒,首先使用喷金仪对藏黄连多糖-硒纳米粒进行喷金处理,然后放入扫描电镜下分析;
D).X射线衍射分析
称取2mg干燥的藏黄连多糖-硒纳米粒置于玻片上,铺匀压紧后放入X射线衍射分析仪内,检测其元素峰;
E).紫外可见光吸收光谱
配置10mL的1mg/mL藏黄连多糖-硒纳米粒溶液,于紫外分光光度计中以200~800nm范围内全波长扫描;
F).刚果红测试
取2mL的刚果红溶液、4mL不同浓度的NaOH溶液和2mL的去蛋白藏黄连多糖放入烧杯内混合,在室温条件下避光搅拌15min,随后使用紫外可见光光度计检测各待测样品在200~800nm范围内的最大吸收波长(λmax);再使用2mg/mL的凝胶多糖替代去蛋白藏黄连多糖,作为对照。
优选的,一种藏黄连多糖硒纳米粒的活性研究方法,包括以下方法:
A).体外抗氧化活性研究
a.DPPH自由基清除
分别取1mL浓度为(0、2.0、4.0、8.0、10.0mg/mL)的去蛋白藏黄连多糖或者藏黄连多糖-硒纳米粒溶液置于试管中,再分别向试管内加入2mL的DPPH溶液(0.05mM,无水乙醇配制)混匀,在室温条件下避光30min,在517nm处使用分光光度计测量吸光度,并记录吸光度值;将不同浓度的藏黄连多糖-硒纳米粒溶液置于试管中,再向试管内加入2mL无水乙醇,再使用分光光度计测量吸光度,将吸光度值记为A0;取1mL蒸馏水置于试管内,再加入2mLDPPH溶液,使用分光光度计测定其吸光度,将吸光度值记为A1,DPPH自由基清除率=[1-(A1-A0)/A1]*100%;
b.羟自由基清除
分别取1mL浓度为(0、2.0、4.0、8.0、10.0mg/mL)的去蛋白藏黄连多糖或者藏黄连多糖-硒纳米粒溶液置于试管中,再向试管内依次加入1mL的70mM的硫酸亚铁溶液和1mL浓度为70mM水杨酸-乙醇溶液,最后分别向试管内加入1mL30%的双氧水溶液,将试管均放入水浴机内,以37℃恒温水浴30min后,在510nm下使用分光光度计测量吸光度为A1;以蒸馏水代替样品作为空白组测吸光度为A2;以蒸馏水代替H2O2作为损伤组,测得其吸光度为A3,羟自由基清除率=[(A1-A3)/(A2-A3)]*100%;
c.ABTS+自由基清除
将去蛋白藏黄连多糖或者藏黄连多糖-硒纳米粒配制成0、2.0、4.0、8.0、10.0mg/mL的五个浓度,ABTS溶液使用蒸馏水配制成浓度为2mM,取50mLABTS溶液与200mL过硫酸钾溶液放入烧杯内混合均匀,在室温条件写避光放置12~16h,得到ABTS+溶液,使用PBS将ABTS+溶液稀释至吸光度为(0.7±0.02)时备用;分别将10μL的不同浓度的藏黄连多糖-硒纳米粒溶液加入到96孔细胞板中,每个浓度重复三个孔,并向每个孔内加入200μL孵育好的ABTS+溶液,混匀6min后检测各孔在734nm处的吸光度(A2);在空白孔内加入10μL的不同样品溶液和200μL的PBS溶液,混匀6min后检测其在734nm处的吸光度(A0);再取空白孔作为对照孔加入210μL的ABTS+溶液,检测其在734nm处的吸光度(A1),ABTS+自由基清除率=[1-(A2-A0)/A1]*100%;
d.总抗体氧化能力检测
将去蛋白藏黄连多糖或者藏黄连多糖-硒纳米粒配制成0、2.0、4.0、8.0、10.0mg/mL的五个浓度,在96孔细胞板的每个检测孔中加入180μLFRAP工作液,在空白对照孔内加入5μL蒸馏水,取六个标准曲线检测孔,并分别向内加入5μL六种浓度依次为0.15、0.3、0.6、0.9、1.2和1.5mM的硫酸亚铁溶液,样品检测孔内分别加入不同浓度的藏黄连多糖-硒纳米粒溶液5μL,在阳性对照孔内加入5μL的Trolox且Trolox浓度为0.15~1.5mM,混匀后在37℃下孵育3~5min后,测定593nm处的吸光度值,计算出藏黄连多糖-硒纳米粒的总抗氧化能力;
B).去蛋白藏黄连多糖和藏黄连多糖-硒纳米粒的体外活性研究
a.去蛋白藏黄连多糖和藏黄连多糖-硒纳米粒的细胞增殖活性
取5000个RAW264.7细胞(100μL)分别加入到96孔板细胞培养板中,培养12h后分别将用PBS配制的0.1mg/mL的去蛋白藏黄连多糖和藏黄连多糖-硒纳米粒倍比稀释后(100μL)加入到细胞中,在37℃、5%二氧化碳浓度的细胞培养箱中培养24h后,向每个孔内加入20μL的MTT溶液,培养4h后去除孔中的溶液,并加入150μL的DMSO溶液,使用震荡机震荡10min后,使用酶标仪检测OD570;
b.去蛋白藏黄连多糖和藏黄连多糖-硒纳米粒的抗炎活性
取5000个RAW264.7细胞(100μL)分别加入96孔板细胞培养板中,培养12h,每孔加入100μL LPS溶液(0.2μg/mL),继续培养12h后分别将用PBS配制的0.1mg/mL的去蛋白藏黄连多糖和藏黄连多糖-硒纳米粒倍比稀释后(100μL)加入到细胞中,在于37℃、5%二氧化碳浓度的细胞培养箱中培养24h后,向每个孔加入20μL的MTT溶液,培养4h后弃去孔中溶液,加入150μL的 DMSO溶液,使用震荡机震荡10min后,使用酶标仪检测OD570。
(三)有益效果
本发明提供了一种藏黄连多糖硒纳米粒结构表征及其活性研究方法。具备以下有益效果:
本发明通过从藏黄连中提取分离出藏黄连多糖,再将藏黄连多糖去除蛋白制得去蛋白藏黄连多糖,再将去蛋白藏黄连多糖还原亚硒酸钠合成藏黄连多糖-硒纳米颗粒,经天然多糖还原无机硒如亚硒酸钠,得到的多糖-硒纳米颗粒具有粒径小,与无机硒比,其生物活性更高,并且毒性较低,从自然界的产物中进行提取,满足人们的需求,研究其结构表征,抗氧化活性和细胞毒性,为研发新型的抗氧化型食品添加剂或饲料添加剂提供理论依据,值得大力推广。
附图说明
图1为本发明的粒径分布示意图;
图2为本发明的红外光谱分析图;
图3为本发明的扫描电子显微镜-能谱分析图;
图4为本发明的X射线衍射分析图;
图5为本发明的紫外全波长扫描图;
图6为本发明的刚果红测试示意图;
图7为本发明的体外抗氧化能力示意图;
图8为本发明的细胞增殖活性示意图;
图9为本发明的抗炎活性示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例一:
本发明实施例提供一种藏黄连多糖硒纳米粒的制备方法,包括以下步骤:
S1.提取分离
称取500g藏黄连放入粉碎机内粉碎,使用80目的筛网对粉碎后的藏黄连粉末进行筛分,将筛分下的粉末放入烧杯内,向烧杯内加入蒸馏水,将烧杯静置对藏黄连粉末浸泡10h,随后将烧杯内混合液体倒入煎煮锅中,煎煮2.5h,重复煎煮3次后将煎煮锅内液体倒入离心管放入离心机中,以2500r/min的转速离心5min,将离心后的液体放入转转蒸发仪内浓缩至500mL,将浓缩液体取出放入烧杯内,再向烧杯内加入无水乙醇,同时进行搅拌,无水乙醇添加完毕后停止搅拌,将搅拌后的溶液静置静置12h后,取搅拌后烧杯底部沉淀物放入真空冷冻干燥机中,以-60℃的温度进行真空冷冻干燥,制得藏黄连多糖;
S2.去除蛋白
使用烧杯配制藏黄连多糖浓度为10mg/mL的溶液1740mL,向烧杯内加入60mLSevag混合液,对烧杯内溶液进行搅拌,持续搅拌50min后静置40min分层,取上层清液去除下层沉淀,将上层清液再次放入烧杯内加入60mLSevag混合液,重复操作10次后,将最终上层清液放入真空冷冻干燥机中,以-60℃的温度进行真空冷冻干燥,制得去蛋白藏黄连多糖;
S3.最终制备
制备3.0mg/mL的去蛋白藏黄连多糖溶液,将溶液加入到烧杯内,向烧杯内加入20mL的50mM亚硒酸钠溶液,在避光环境下持续搅拌3h后,向烧杯内滴加20mL的50mM抗坏血酸溶液,再向烧杯内加入超纯水将烧杯内体积补至200mL,继续在避光条件下持续搅拌12h,反应结束后将混合液装入截留分子量为8000~12000的透析袋中,在4℃的外界温度条件下避光使用蒸馏水透析72h,取透析后的反应液测量粒径,将反应液放入真空冷冻干燥机内,以-60℃的温度进行真空冷冻干燥,制得藏黄连多糖-硒纳米粒。
S1步骤提取分离中,藏黄连粉末与蒸馏水的重量比为1:15,浓缩液体与无水乙醇的体积比为1:4。
S2步骤去除蛋白中 Sevag混合液为正丁醇:三氯甲烷=1:4的混合溶液。
综上,通过从藏黄连中提取分离出藏黄连多糖,再将藏黄连多糖去除蛋白制得去蛋白藏黄连多糖,再将去蛋白藏黄连多糖还原亚硒酸钠合成藏黄连多糖-硒纳米颗粒,经天然多糖还原无机硒如亚硒酸钠,得到的多糖-硒纳米颗粒具有粒径小,与无机硒比,其生物活性更高,并且毒性较低,研究其结构表征,抗氧化活性和细胞毒性,为研发新型的抗氧化型食品添加剂或饲料添加剂提供理论依据。
实施例二:
本发明实施例提供一种藏黄连多糖硒纳米粒的制备方法,包括以下步骤:
S1.提取分离
称取450g藏黄连放入研磨机内粉碎,使用70目的筛网对研磨后的藏黄连粉末进行筛分,将筛分下的粉末放入烧杯内,向烧杯内加入蒸馏水,将烧杯静置对藏黄连粉末浸泡12h,随后将量筒内混合液体倒入煎煮锅中,煎煮2h,重复煎煮三次后将煎煮锅内液体倒入离心管放入离心机中,以1500r/min的转速离心3min,将离心后的液体放入旋转蒸发仪内浓缩至500mL,将浓缩液体取出放入烧杯内,再向烧杯内加入无水乙醇,同时进行搅拌,无水乙醇添加完毕后停止搅拌,将搅拌后的溶液静置10h后,取烧杯底部沉淀物放入真空冷冻干燥机中,以-50℃的温度进行真空冷冻干燥,制得藏黄连多糖;
S2.去除蛋白
使用烧杯配制藏黄连多糖浓度为10mg/mL的溶液1740mL,向烧杯内加入60mLSevag混合液,对烧杯内进行搅拌,持续搅拌45min后静置30min分层,取上层清液去除下层沉淀,将上层清液再次放入烧杯内加入60mL Sevag混合液,重复操作8次后,将最终上层清液放入真空冷冻干燥机中,以-50℃的温度进行真空冷冻干燥,制得去蛋白藏黄连多糖;
S3.最终制备
制备0.5mg/mL的去蛋白藏黄连多糖溶液,将溶液加入到烧杯内,向烧杯内加入20mL的50mM亚硒酸钠溶液,在避光环境下持续搅拌3h后,向烧杯内滴加20mL的50mM抗坏血酸溶液,再向烧杯内加入超纯水将烧杯内体积补至200mL,继续在避光条件下持续搅拌12h,反应结束后将混合液装入截留分子量为8000~12000的透析袋中,在4℃的外界温度条件下避光使用蒸馏水透析72h,取透析后的反应液测量粒径,将反应液放入真空冷冻干燥机内,以-50℃的温度进行真空冷冻干燥,制得藏黄连多糖-硒纳米粒。
S1步骤提取分离中,藏黄连粉末与蒸馏水的重量比为1:15,浓缩液体与无水乙醇的体积比为1:4。
S2步骤去除蛋白中 Sevag混合液为正丁醇:三氯甲烷=1:4的混合溶液。
综上,通过从藏黄连中提取分离出藏黄连多糖,再将藏黄连多糖去除蛋白制得去蛋白藏黄连多糖,再将去蛋白藏黄连多糖还原亚硒酸钠合成藏黄连多糖-硒纳米颗粒,经天然多糖还原无机硒如亚硒酸钠,得到的多糖-硒纳米颗粒具有粒径小,与无机硒比,其生物活性更高,并且毒性较低,研究其结构表征,抗氧化活性和细胞毒性,为研发新型的抗氧化型食品添加剂或饲料添加剂提供理论依据。
实施例三:
如图1-6所示,本发明实施例提供一种藏黄连多糖硒纳米粒结构表征的研究方法,包括以下方法:
A).粒径分布
取藏黄连多糖-硒纳米粒,配制成1mg/mL的样品溶液,再使用纳米粒度仪检测其粒径分布;如图1中a表所示,当去蛋白藏黄连多糖浓度为1.5mg/mL时,藏黄连多糖-硒纳米粒的粒径分布相对比较集中且较小,因此,筛选1.5mg/mL的去蛋白藏黄连多糖作为最佳浓度,如图1中b表所示,藏黄连多糖-硒纳米粒的平均粒径为101.96nm。
B).红外光谱分析
分别称取2mg的去蛋白藏黄连多糖、藏黄连多糖-硒纳米粒和硒纳米粒,将称取的材料分别放入玛瑙研钵中,并向研钵内加入10mg的溴化钾粉末混合研磨均匀,然后将研磨后的混合物放入压片机内压制成片,再将片状物放入红外光谱仪中以400~4000cm-1 的范围进行扫描;如图2所示,去蛋白藏黄连多糖在3148cm-1、1653cm-1处的振动吸收峰分别为O-H、C=O,在3016 cm-1形成吸收峰是由于-CH2基团的C-H伸缩和弯曲振动所形成的,以上表明去蛋白藏黄连多糖中有多糖的特征吸收峰的存在;藏黄连多糖-硒纳米粒中O-H拉伸震动形成的吸收峰和C=O吸收峰分别为3430cm-1、1631cm-1,表明藏黄连多糖-硒纳米粒中有多糖的存在,形成了新的吸收峰。藏黄连多糖-硒纳米粒在2858cm-1附近的吸收峰与硒纳米粒在2854cm-1附近的吸收峰类似,表明合成的藏黄连多糖-硒纳米粒中有硒纳米粒的存在,与藏黄连多糖比较,藏黄连多糖-硒纳米粒吸收峰向低波段移动,羟基的特征峰从3149cm-1(去蛋白藏黄连多糖)移动到3140cm-1(藏黄连多糖-硒纳米粒),表明去蛋白藏黄连多糖和硒纳米粒的O-H基团之间存在氢键相互作用。藏黄连多糖-硒纳米粒表面的-OH吸收峰从3446cm-1移至3430cm-1,C=O吸收峰从1653cm-1移至1631cm-1,C-O-C吸收峰从1253cm-1移至1251cm-1,以上结果表明硒纳米粒与藏黄连多糖之间是通过非共价作用的方式结合。
C).扫描电子显微镜分析
称取2mg干燥的藏黄连多糖-硒纳米粒,首先使用喷金仪对藏黄连多糖-硒纳米粒进行喷金处理,然后放入扫描电镜下分析;图3中a和b为藏黄连多糖在300倍与1200倍下的扫描图,结果显示藏黄连多糖表面为片状,边缘呈针状;图3中d和e为藏黄连多糖-硒纳米粒在300倍和1200倍下的扫描图,结果显示Se纳米粒子覆盖在藏黄连多糖表面,片状加厚,边缘圆润;藏黄连多糖和藏黄连多糖-硒纳米粒能谱结果如图3中c和f,藏黄连多糖-硒纳米粒中Se的质量百分百为11.66%。
D).X射线衍射分析
称取2mg干燥的藏黄连多糖-硒纳米粒置于玻片上,铺匀压紧后放入X射线衍射分析仪内,检测其元素峰;如图4所示藏黄连多糖-硒纳米粒的XRD结果与标准Se比色卡(PDF:32-0992)对比,标准硒的2θ在24°和31°处有两个强烈的反射峰,表明结晶硒的存在。藏黄连多糖-硒纳米粒显示出与标准Se有相似的反射峰,结果表明,藏黄连多糖-硒纳米粒中有Se存在,合成成功。
E).紫外可见光吸收光谱
配置10mL的1mg/mL藏黄连多糖-硒纳米粒溶液,于紫外分光光度计中以200~800nm范围内全波长扫描;如图5所示,藏黄连多糖-硒纳米粒最大吸收峰值出现位置小于200nm,而硒纳米粒在480nm处有最大吸收峰值,其位于可见光区,说明硒纳米粒呈现橙黄色。核酸的紫外最大吸收峰在260nm处,藏黄连多糖在260nm未出现明显吸收峰,表明藏黄连多糖中核酸含量低;藏黄连多糖-硒纳米粒在260nm未出现吸收峰,表明中核酸含量低。蛋白质的紫外最大吸收峰在280nm处,藏黄连多糖在280nm未出现明显吸收峰,说明藏黄连多糖中蛋白质含量较低,藏黄连多糖-硒纳米粒在280nm未出现吸收峰,表明藏黄连多糖-硒纳米粒中无蛋白存在。
F).刚果红测试
取2mL的刚果红溶液、4mL不同浓度的NaOH溶液和2mL的去蛋白藏黄连多糖放入烧杯内混合,在室温条件下避光搅拌15min,随后使用紫外可见光光度计检测各待测样品在200~800nm范围内的最大吸收波长(λmax);再使用2mg/mL的凝胶多糖替代去蛋白藏黄连多糖,作为对照;如图6所示,随着NaOH浓度的增大,凝胶多糖的λmax也随之增加,凝胶多糖是可知的具有三螺旋结构的多糖,而试验中藏黄连多糖也表现出相同红移情况。因此,推测藏黄连多糖具有三螺旋构象。
实施例四:
如图7-9所示,本发明实施例提供一种藏黄连多糖硒纳米粒的活性研究方法,包括以下方法:
A).体外抗氧化活性研究
a.DPPH自由基清除
分别取1mL浓度为(0、2.0、4.0、8.0、10.0mg/mL)的藏黄连多糖-硒纳米粒溶液置于试管中,再分别向试管内加入2mL的DPPH溶液混匀,在室温条件下避光30min,在517nm处使用分光光度计测量吸光度,并记录吸光度值;将不同浓度的藏黄连多糖-硒纳米粒溶液置于试管中,再向试管内加入2mL无水乙醇,再使用分光光度计测量吸光度,将吸光度值记为A0;取1mL蒸馏水置于试管内,再加入2mLDPPH溶液,使用分光光度计测定其吸光度,将吸光度值记为A1,DPPH自由基清除率=[1-(A1-A0)/A1]*100%;藏黄连多糖-硒纳米粒对DPPH自由基的清除能力见图7中b,由图可知,当浓度为2-10 mg/mL时,藏黄连多糖-硒纳米粒清除DPPH自由基能力随着浓度的升高逐渐增加,且在10mg/mL时达到最高为66.85%,而藏黄连多糖对DPPH自由基清除能力与藏黄连多糖-硒纳米粒相比较弱,最高达到47.35%,表明硒纳米粒子可以增强藏黄连多糖对DPPH自由清除能力。
b.羟自由基清除
分别取1mL浓度为(0、2.0、4.0、8.0、10.0mg/mL)的藏黄连多糖-硒纳米粒溶液置于试管中,再向试管内依次加入1mL的70mM的硫酸亚铁溶液和1mL浓度为70mM水杨酸-乙醇溶液,最后分别向试管内加入1mL30%的双氧水溶液,将试管均放入水浴机内,以37℃恒温水浴30min后,在510nm下使用分光光度计测量吸光度为A1;以蒸馏水代替样品作为空白组测吸光度为A2;以蒸馏水代替H2O2作为损伤组,测得其吸光度为A3,羟自由基清除率=[(A1-A3)/(A2-A3)]*100%;藏黄连多糖-硒纳米粒对羟自由基的清除能力见图7中c,由图可知,各浓度藏黄连多糖-硒纳米粒均有清除羟自由基能力,随着浓度的升高,其对羟自由基清除能力逐渐增加,且在10mg/mL时达到最高为84.92%,而藏黄连多糖对羟自由基清除能力与藏黄连多糖-硒纳米粒相比较弱,最高可达到62.29%,表明硒纳米粒子可以增强藏黄连多糖对羟自由基清除能力。
c.ABTS+自由基清除
将藏黄连多糖-硒纳米粒配制成0、2.0、4.0、8.0、10.0mg/mL的五个浓度,ABTS溶液使用蒸馏水配制成浓度为2mM,取50mLABTS溶液与200mL过硫酸钾溶液放入试管内混合均匀,在室温条件写避光放置12~16h,得到ABTS+溶液,使用PBS将ABTS+溶液稀释至吸光度为(0.7±0.02)时备用;分别将10μL的不同浓度的藏黄连多糖-硒纳米粒溶液加入到96孔细胞板中,每个浓度重复三个孔,并向每个孔内加入200μL孵育好的ABTS+溶液,混匀6min后检测各孔在734nm处的吸光度(A2);在空白孔内加入10μL的不同样品溶液和200μL的PBS溶液,混匀6min后检测其在734nm处的吸光度(A0);再取空白孔作为对照孔加入210μL的ABTS+溶液,检测其在734nm处的吸光度(A1),ABTS+自由基清除率=[1-(A2-A0)/A1]*100%;藏黄连多糖-硒纳米粒对ABTS+自由基的清除能力见图7中a,由图可知,藏黄连多糖-硒纳米粒在各浓度均有清除ABTS+自由基能力,随着浓度的升高,对ABTS+自由基清除能力逐渐提高,且在10mg/mL时达到最高为76.52%,而藏黄连多糖对ABTS+自由基清除能力与藏黄连多糖-硒纳米粒相比较弱,最高为54.98%,表明硒纳米粒子可以增强藏黄连多糖对ABTS+自由清除能力。
d.总抗体氧化能力检测
将藏黄连多糖-硒纳米粒配制成0、2.0、4.0、8.0、10.0mg/mL的五个浓度,在96孔细胞板的每个检测孔中加入180μLFRAP工作液,在空白对照孔内加入5μL蒸馏水,取六个标准曲线检测孔,并分别向内加入5μL六种浓度依次为0.15、0.3、0.6、0.9、1.2和1.5mM的硫酸亚铁溶液,样品检测孔内分别加入不同浓度的藏黄连多糖-硒纳米粒溶液5μL,在阳性对照孔内加入5μL的Trolox且Trolox浓度为(0.15~1.5mM),混匀后在37℃下孵育3~5min后,测定593nm处的吸光度值,计算出藏黄连多糖-硒纳米粒的总抗氧化能力;藏黄连多糖-硒纳米粒总还原能力见图7中d,由图可知,当浓度为6.0-10.0mg/mL时,藏黄连多糖-硒纳米粒总还原能力达到1级以上,随着浓度的升高,总还原能力逐渐提高,且在10mg/mL时达到最高接近于2级,而藏黄连多糖总还原能力明显弱于藏黄连多糖-硒纳米粒,最高仅能达到1级,表明硒纳米粒子可以增强藏黄连多糖的还原性。
B).去蛋白藏黄连多糖和藏黄连多糖-硒纳米粒的体外活性研究
a.去蛋白藏黄连多糖和藏黄连多糖-硒纳米粒的细胞增殖活性
取5000个RAW264.7细胞(100μL)分别加入到96孔板细胞培养板中,培养12h后分别将用PBS配制的0.1mg/mL的去蛋白藏黄连多糖和藏黄连多糖-硒纳米粒倍比稀释后(100μL)加入到细胞中,在37℃、5%二氧化碳浓度的细胞培养箱中培养24h后,向每个孔内加入20μL的MTT溶液,培养4h后去除孔中的溶液,并加入150μL的DMSO溶液,使用震荡机震荡10min后,使用酶标仪检测OD570;如图8显示,藏黄连多糖在500-1000μg/mL浓度范围内均能显著促进RAW264.7的增殖;藏黄连多糖-硒纳米粒在250-500μg/mL浓度范围内均能显著促进RAW264.7的增殖;当浓度为500μg/mL时,藏黄连多糖-硒纳米粒促RAW264.7增殖效果显著高于藏黄连多糖,而在浓度为1000μg/mL时,两者表现出相反的效果,表明当藏黄连多糖-硒纳米粒增加到一定浓度时,其中的硒纳米粒浓度也随之增大,可抑制多糖的促细胞增殖活性。
b.去蛋白藏黄连多糖和藏黄连多糖-硒纳米粒的抗炎活性
取5000个RAW264.7细胞(100μL)分别加入96孔板细胞培养板中,培养12h,每孔加入100μL LPS溶液(0.2μg/mL),继续培养12h后分别将用PBS配制的0.1mg/mL的去蛋白藏黄连多糖和藏黄连多糖-硒纳米粒倍比稀释后(100μL)加入到细胞中,在于37℃、5%二氧化碳浓度的细胞培养箱中培养24h后,向每个孔加入20μL的MTT溶液,培养4h后弃去孔中溶液,加入150μL的 DMSO溶液,使用震荡机震荡10min后,使用酶标仪检测OD570;如图9所示,与BC和LPS组相比,藏黄连多糖在1000μg/mL浓度范围内,显著缓解LPS对细胞的刺激;与BC组相比,藏黄连多糖-硒纳米粒在250-1000μg/mL范围内显著缓解LPS对细胞的刺激;与LPS组相比,藏黄连多糖-硒纳米粒在500-1000μg/mL范围内显著缓解LPS对细胞的刺激。62.5-500μg/mL浓度范围内,同一浓度时藏黄连多糖-硒纳米粒缓解LPS对细胞的刺激效果高于或显著高于CTP,表明藏黄连多糖-硒纳米粒的抗炎效果更好,硒纳米粒可增强藏黄连多糖的抗炎效果,结合图8,当藏黄连多糖-硒纳米粒在1000μg/mL时对正常RAW264.7细胞增殖无显著促进作用,而可显著缓解LPS对细胞的刺激,表明硒纳米粒可增强藏黄连多糖的抗炎效果。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (3)
1.一种藏黄连多糖硒纳米粒的制备方法,其特征在于:包括以下步骤:
S1.提取分离
称取450~500g藏黄连放入粉碎机内粉碎,使用70~80目的筛网对粉碎后的藏黄连粉末进行筛分,将筛分下的粉末放入烧杯内,向烧杯内加入蒸馏水,将烧杯静置对藏黄连粉末浸泡10~12h,随后将烧杯内混合液体倒入煎煮锅中,煎煮2~2.5h,重复煎煮2~3次后将煎煮锅内液体倒入离心管放入离心机中,以1500~2500r/min的转速离心3~5min,将离心后的液体放入旋转蒸发仪中浓缩至500mL,将浓缩液体取出放入烧杯,再向烧杯内加入无水乙醇,同时进行搅拌,无水乙醇添加完毕后停止搅拌,将搅拌后的溶液静置10~12h后,取烧杯底部沉淀物放入真空冷冻干燥机中,以-50~-60℃的温度进行真空冷冻干燥,制得藏黄连多糖;
S2.去除蛋白
使用烧杯配制藏黄连多糖浓度为10mg/mL的溶液1740mL,再向烧杯内加入60mL Sevag混合液,对烧杯内溶液进行搅拌,持续搅拌45~50min后静置30~40min分层,取上层清液去除下层沉淀,将上层清液再次放入烧杯内加入60mL Sevag混合液,重复操作8~10次后,将最终上层清液放入真空冷冻干燥机中,以-50~-60℃的温度进行真空冷冻干燥,制得去蛋白藏黄连多糖;
S3.最终制备
制备0.5~3.0mg/mL的去蛋白藏黄连多糖溶液,将溶液加入到烧杯内,再向烧杯内加入20mL的50mM亚硒酸钠溶液,在避光环境下持续搅拌3h后,向烧杯内滴加20mL的50mM抗坏血酸溶液,再向烧杯内加入超纯水将烧杯内体积补至200mL,继续在避光条件下持续搅拌12h,反应结束后将混合液装入截留分子量为8000~12000的透析袋中,在4℃的外界温度条件下避光使用蒸馏水透析72h,取透析后的反应液测量粒径,将反应液放入真空冷冻干燥机内,以-50~-60℃的温度进行真空冷冻干燥,制得藏黄连多糖-硒纳米粒。
2.根据权利要求1所述的一种藏黄连多糖硒纳米粒的制备方法,其特征在于:所述S1步骤提取分离中,藏黄连粉末与蒸馏水的重量比为1:15,浓缩液体与无水乙醇的体积比为1:4。
3.根据权利要求1所述的一种藏黄连多糖硒纳米粒的制备方法,其特征在于:所述S2步骤去除蛋白中 Sevag混合液为正丁醇:三氯甲烷=1:4的混合溶液。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111365664.4A CN114085294B (zh) | 2021-11-18 | 2021-11-18 | 一种藏黄连多糖硒纳米粒结构表征及其活性研究方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111365664.4A CN114085294B (zh) | 2021-11-18 | 2021-11-18 | 一种藏黄连多糖硒纳米粒结构表征及其活性研究方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN114085294A CN114085294A (zh) | 2022-02-25 |
CN114085294B true CN114085294B (zh) | 2022-10-14 |
Family
ID=80301820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111365664.4A Active CN114085294B (zh) | 2021-11-18 | 2021-11-18 | 一种藏黄连多糖硒纳米粒结构表征及其活性研究方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114085294B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115448781A (zh) * | 2022-09-05 | 2022-12-09 | 贵州财经大学 | 一种富硒功能性刺梨专用叶面肥及其生产方法和应用 |
CN116270724A (zh) * | 2023-04-24 | 2023-06-23 | 青岛农业大学 | 一种多糖硒纳米粒及其制备方法和应用 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002050257A2 (de) * | 2000-12-21 | 2002-06-27 | Südzucker Aktiengesellschaft | Verfahren zur herstellung von polyfructanen |
JP2003206483A (ja) * | 2002-01-15 | 2003-07-22 | Kanebo Ltd | 抗酸化剤及び皮膚外用剤 |
CN102268098A (zh) * | 2011-07-08 | 2011-12-07 | 河南中医学院 | 墨旱莲多糖铁络合物制备方法及其应用 |
CN107311823A (zh) * | 2017-08-31 | 2017-11-03 | 安徽阜南县万家和工艺品有限公司 | 一种提高杞柳韧性的施肥方法 |
CN107789301A (zh) * | 2017-12-06 | 2018-03-13 | 广州赛莱拉干细胞科技股份有限公司 | 一种祛痘护肤组合物及其应用 |
CN112480281A (zh) * | 2020-12-12 | 2021-03-12 | 上海容音医疗科技咨询中心 | 一种短穗兔耳草多糖及制备抗肿瘤药物的用途 |
-
2021
- 2021-11-18 CN CN202111365664.4A patent/CN114085294B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002050257A2 (de) * | 2000-12-21 | 2002-06-27 | Südzucker Aktiengesellschaft | Verfahren zur herstellung von polyfructanen |
JP2003206483A (ja) * | 2002-01-15 | 2003-07-22 | Kanebo Ltd | 抗酸化剤及び皮膚外用剤 |
CN102268098A (zh) * | 2011-07-08 | 2011-12-07 | 河南中医学院 | 墨旱莲多糖铁络合物制备方法及其应用 |
CN107311823A (zh) * | 2017-08-31 | 2017-11-03 | 安徽阜南县万家和工艺品有限公司 | 一种提高杞柳韧性的施肥方法 |
CN107789301A (zh) * | 2017-12-06 | 2018-03-13 | 广州赛莱拉干细胞科技股份有限公司 | 一种祛痘护肤组合物及其应用 |
CN112480281A (zh) * | 2020-12-12 | 2021-03-12 | 上海容音医疗科技咨询中心 | 一种短穗兔耳草多糖及制备抗肿瘤药物的用途 |
Non-Patent Citations (5)
Title |
---|
"圆穗兔耳草化学成分的研究";杨爱梅等;《中草药》;20080312;第39卷(第3期);第337-339页 * |
"植物硒多糖研究进展";王磊;《食品安全导刊》;20190125(第1期);第155-157页 * |
"硒多糖的合成方法及其特性研究进展";齐鹏翔等;《食品工业科技》;20180814;第40卷(第1期);第332-336页 * |
"硒多糖药理作用的研究进展";薛玲等;《中国医学创新》;20190405;第16卷(第10期);第169-172页 * |
"藏药革叶兔耳草粗提物的抗氧化活性研究";张娜等;《云南民族大学学报:自然科学版》;20130110;第22卷(第1期);第5-9页 * |
Also Published As
Publication number | Publication date |
---|---|
CN114085294A (zh) | 2022-02-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN114085294B (zh) | 一种藏黄连多糖硒纳米粒结构表征及其活性研究方法 | |
CN109303922B (zh) | 一种刺梨多糖功能化纳米硒复合物及其制备方法与在降糖药物中的应用 | |
Zhang et al. | Effects of superfine grinding on physicochemical and antioxidant properties of Lycium barbarum polysaccharides | |
WO2020211786A1 (zh) | 提高花色苷稳定性的微胶囊化方法及其产品、用途 | |
Jiang et al. | Impact of ball-milling time on the physical properties, bioactive compounds, and structural characteristics of onion peel powder | |
CN114226746B (zh) | 一种超声辅助橘皮提取物绿色合成金纳米颗粒的方法 | |
Babamoradi et al. | Optimization of ultrasound‐assisted extraction of functional polysaccharides from common mullein (Verbascum thapsus L.) flowers | |
Zhou et al. | Extraction, structure characterization and biological activity of polysaccharide from coconut peel | |
Wang et al. | Preparation and anti-tumor activity of selenium nanoparticles based on a polysaccharide from Paeonia lactiflora | |
CN104987427A (zh) | 利用响应曲面法优化黑果枸杞多糖的复合酶微波提取方法 | |
Pandimeena et al. | Evaluation of phytochemicals and in vitro antiinflammatory, anti-diabetic activity of the white oyster mushroom, Pleurotus florida | |
CN109528843A (zh) | 一种山楂黄酮的提取方法 | |
Yue et al. | Synthesis, characterization, and evaluation of microwave-assisted fabricated selenylation Astragalus polysaccharides | |
CN109593110B (zh) | 一种利用化橘红制备柚皮苷的方法 | |
Cheng et al. | Effect of subcritical water temperature on the structure, antioxidant activity and immune activity of polysaccharides from Glycyrrhiza inflata Batalin | |
CN107496284B (zh) | 一种天然复合植物紫外吸收剂及其应用 | |
CN105106816B (zh) | 保护化学性肝损伤的中药保健品制剂及其制备方法 | |
CN109827814A (zh) | 一种新型大气颗粒物琼脂采样膜制备及免溶剂提取细胞暴露方法 | |
CN107670052B (zh) | 一种木犀草素-甘草酸共轭牛血清白蛋白载药纳米粒及其制备方法和应用 | |
KR20130010987A (ko) | 인삼으로부터 항암 면역증강 및 조혈촉진 효과가 있는 파낙산 다당체를 정제하는 방법, 이에 따라 정제된 파낙산 다당체의 특성을 규정하는 분석방법 및 상기 분석된 인삼 파낙산 다당체를 포함하는 항암 면역증강 및 조혈촉진을 위한 조성물 | |
CN115590905B (zh) | 一种提高金荞麦茎叶提取物中黄酮和多酚含量的萃取分离方法 | |
Geng et al. | Effects of different extraction methods on the physico-chemical characteristics and biological activities of polysaccharides from Clitocybe squamulosa | |
CN114272327B (zh) | 一种石斛发酵制品及其制备方法与应用 | |
Qiao et al. | Antioxidant activity and rheological properties of the polysaccharides isolated from Ribes stenocarpum maxim with different extraction methods | |
CN113307891B (zh) | 蒲公英多糖及其硒纳米复合物的制备、鉴定方法和应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |