A kind of method of extracting steroidal saponin from Calyx Seu Fructus Physalis stem and Constellation calyx
Technical field
The present invention relates to one and relate to extract drugs method, particularly relate to a kind of method of extracting steroidal saponin from Calyx Seu Fructus Physalis stem and Constellation calyx.
Background technology
Calyx Seu Fructus Physalis (
physalis alkekengi), another name Calyx seu fructus physalis, hang up a Chinese lantern, Calyx Seu Fructus Physalis etc., be Solanaceae monkey flower, fruit is that spheroidal berry is perennial root draft, its fruit is edible, is China's time-honored medicine-food two-purpose health fruit.In its successive dynasties book on Chinese herbal medicine, also record.Main product in the Three Eastern Provinces, the ground such as Hebei, Xinjiang, Shandong.The composition of Calyx Seu Fructus Physalis mainly contains steroid, sterols, alkaloids, amino acids, volatile oil, polysaccharide, inorganic elements etc.Pharmacological research shows that Calyx Seu Fructus Physalis has antiinflammatory, malaria, the well pharmacological action such as anticancer, antibacterial.According to the basic structure of sapogenin, saponin is divided into steroidal saponin and triterpene saponin.The saponin containing in Calyx Seu Fructus Physalis is mainly steroidal saponin, and research shows that dioscin is different spirostane alcohol type steroidal saponin, its have eliminate the phlegm, the effect such as antiplatelet aggregation, blood fat reducing, antitumor.According to another bibliographical information, the steroidal saponin in franchet groundcherry calyx or fruit and diabetes pill be similar all has blood sugar reducing function.And with Calyx Seu Fructus Physalis in the triterpene saponin of steroidal saponin similar; as ginsenoside Rg1 can protect dopamine neuron; can reduce lipid content treatment of vascular and can also prevent cerebral atherosclerosis, can suppress the effects such as the expression of blood vessel endothelium matrix metalloproteinase.
The principle of microwave extraction is mainly that the process that microwave radiation conducts heat is that frequency electromagnetic waves passes in the inner cell of medium arrival extract, thereby the electromagnetic field of microwave can accelerate the molecular diffusion rate of extract components.Can determine that by microwave principle the inventive method can improve extraction efficiency, and save time.The extraction of Calyx Seu Fructus Physalis steroidal saponin in the past mainly adopts water-bath Effect of Alcohol Extracting Procedureto Total, and when the method operating cost, loaded down with trivial details, product yield is low, and energy consumption is large.
Summary of the invention
The object of the present invention is to provide a kind of method of extracting steroidal saponin from Calyx Seu Fructus Physalis stem and Constellation calyx, the method is by after dry Calyx Seu Fructus Physalis stem and Constellation calyx pulverizing, extract feed liquid, make extractum, medicinal and the edible resource of exploitation Calyx Seu Fructus Physalis stem, meanwhile, microwave extraction technique can obviously reduce extraction time, improve the yield of saponin.The Calyx Seu Fructus Physalis stem obtaining through the inventive method and the steroidal saponin of Constellation calyx through separation and purification can be used as preparation antibacterial, eliminate the phlegm, the medicine of antiplatelet aggregation, blood fat reducing, antitumor etc. or use as the raw material of functional food, health product.
The object of the invention is to be achieved through the following technical solutions:
From Calyx Seu Fructus Physalis stem and Constellation calyx, extract a method for steroidal saponin, described method comprises following process:
A. sample treatment:
Calyx Seu Fructus Physalis stem is dried in 100~105 DEG C of baking ovens, is ground into Powderedly with pulverizer, crosses 40~80 mesh sieve postpones and in dry valve bag, seals up for safekeeping stand-by;
B. microwave method is extracted:
Accurate 1~5g stem or 0.1~0.5g Constellation calyx powder, measure concentration of alcohol and be 60%~90% in 250ml round-bottomed flask, according to set experimental program, extracts 1~5 time, extracts 5min~15min, solid-liquid ratio 1:10~1:40; Under microwave irradiation power 380~680W condition, carry out microwave extraction; After extraction, sucking filtration, concentrated by rotary evaporation, shifts out and makes extractum, stand-by;
C. the foundation of standard curve:
Take dioscin standard substance in volumetric flask, be made into titer with absolute methanol standardize solution, get after titer adds the colour developing of vanillin-perchloric acid and carry out length scanning, record maximum wavelength; Pipette respectively the titer of quantitative gradient dilution in tool plug test tube, after water-bath volatilizes, add respectively 0.1~0.5ml, 2~5% vanillin-glacial acetic acid liquid, 0.5~1.0ml perchloric acid, 65~70 DEG C of water-baths, heating 10~15min, frozen water is cooling; Add 4.0~6.0ml glacial acetic acid to leave standstill 10~30min, measure absorbance at maximum wavelength place, taking absorbance (A) as vertical coordinate Y, the concentration C of dioscin is that abscissa X does standard curve, and sets up regression equation;
D. the mensuration of the content of steroidal saponin:
Adopt vanillin-perchloric acid to measure the content of saponin: the extract revolving after steaming is settled in volumetric flask; Pipette quantitative above-mentioned solution and be placed in tool plug test tube, water-bath volatilizes solvent; Then add 0.1~0.5ml, vanillin-glacial acetic acid solution of 2~5% and 0.5~1.0ml perchloric acid, close plug test tube shakes up, and is placed in 65~70 DEG C of water-bath vibration heating 10 ~ 15min; After taking-up, use immediately frozen water cooling; Add 4.0~6.0ml glacial acetic acid to mix, leave standstill 10~30min.Measure absorbance in maximum absorption wave strong point; According to the regression equation calculation saponin yield of the absorbance substitution standard curve measuring;
Above-mentioned percentage ratio is percent by volume.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1:
(1) Calyx Seu Fructus Physalis stem is dried in 100~105 DEG C of baking ovens, is ground into Powderedly with pulverizer, crosses 40~80 mesh sieve postpones and in dry valve bag, seals up for safekeeping stand-by;
(2) the foundation of standard curve: take 5~10mg dioscin and be made into absolute methanol standardize solution in 50ml volumetric flask the titer of 0.05~0.2mg/ml, get after titer adds the colour developing of vanillin-perchloric acid and carry out length scanning, maximum wavelength is 500~560nm.Pipette respectively 300,400,500,1100,1300,1500ul in tool plug test tube, after water-bath volatilizes, add respectively 0.1~0.5ml(2~5%) vanillin-glacial acetic acid liquid, 0.5~1.0ml perchloric acid, 65~70 DEG C of water-baths, heating 10~15min, frozen water is cooling; Add 4.0~6.0ml glacial acetic acid to leave standstill 10~30min, measure absorbance at 560nm place.Taking absorbance (A) as vertical coordinate Y, the concentration C of dioscin is that abscissa X does standard curve, and sets up regression equation;
(3) accurately take three parts of 1~5g Calyx Seu Fructus Physalis stem powder, with 60~90% alcoholic solution, extraction 5~15min, extraction 1~5 time, solid-liquid ratio 1:10~1:40, under radiant power 380~680W condition, extract respectively;
(4) extract complete, sucking filtration, concentrated by rotary evaporation, shifts out, and makes extractum, stand-by;
(5) measure contents of steroid saponin with vanillin-perchloric acid, the extract revolving after steaming is settled in 100ml volumetric flask; Pipette 0.1ml and be placed in 10ml tool plug test tube, 60 DEG C of water-baths volatilize solvent; Then add 0.1~0.5ml(2~5%) vanillin-glacial acetic acid liquid, 0.5~1.0ml perchloric acid, 65~70 DEG C of water-baths, heating 10~15min, frozen water is cooling; Add 4.0~6.0ml glacial acetic acid to leave standstill 10~30min, measure absorbance in maximum absorption wave strong point.According to the regression equation of the absorbance substitution standard curve measuring.Be greater than 5.0% by the steroidal saponin yield that calculates stem.
Embodiment 2:
(1) franchet groundcherry calyx or fruit is dried in 100~105 DEG C of baking ovens, is ground into Powderedly with pulverizer, crosses 40~80 mesh sieve postpones and in dry valve bag, seals up for safekeeping stand-by;
(2) the foundation of standard curve: (2) identical with embodiment 1.
(3) accurately take three parts of 0.1~0.5g franchet groundcherry calyx or fruit powder, with 60~90% alcoholic solution, extraction 5~15min, extraction 1~5 time, solid-liquid ratio 1:10~1:40, under radiant power 380~680W condition, extract respectively;
(4) extract complete, sucking filtration, concentrated by rotary evaporation, shifts out, and makes extractum, stand-by;
(5) measure contents of steroid saponin with vanillin-perchloric acid, the extract revolving after steaming is settled in 100ml volumetric flask; Pipette 0.1ml and be placed in 10ml tool plug test tube, 60 DEG C of water-baths volatilize solvent; Then add 0.1~0.5ml(2~5%) vanillin-glacial acetic acid liquid, 0.5~1.0ml perchloric acid, 65~70 DEG C of water-baths, heating 10~15min, frozen water is cooling; Add 4.0~6.0ml glacial acetic acid to leave standstill 10~30min, measure absorbance in maximum absorption wave strong point.According to the regression equation of the absorbance substitution standard curve measuring.Be greater than 8.0% by calculating steroidal saponin yield in Constellation calyx.