CN110372803A - A kind of oral solution with hypoglycemic raising immunity - Google Patents

A kind of oral solution with hypoglycemic raising immunity Download PDF

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CN110372803A
CN110372803A CN201910701240.7A CN201910701240A CN110372803A CN 110372803 A CN110372803 A CN 110372803A CN 201910701240 A CN201910701240 A CN 201910701240A CN 110372803 A CN110372803 A CN 110372803A
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laminaran
preparation
added
solution
polysaccharide
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CN110372803B (en
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孙坤来
王斌
陈荫
赵玉勤
颜景雪
刘陈楠
李文思
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Changsheng Wuji Beijing Biological Science Research Institute Co ltd
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Zhejiang Ocean University ZJOU
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/70Carbohydrates; Sugars; Derivatives thereof
    • A61K31/715Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
    • A61K31/716Glucans
    • A61K31/718Starch or degraded starch, e.g. amylose, amylopectin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
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    • A61K47/36Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
    • A61K47/40Cyclodextrins; Derivatives thereof
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61K9/0095Drinks; Beverages; Syrups; Compositions for reconstitution thereof, e.g. powders or tablets to be dispersed in a glass of water; Veterinary drenches
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61P3/00Drugs for disorders of the metabolism
    • A61P3/08Drugs for disorders of the metabolism for glucose homeostasis
    • A61P3/10Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61P37/04Immunostimulants
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
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    • C08B30/04Extraction or purification
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00Preparation of derivatives of starch
    • C08B31/02Esters
    • C08B31/06Esters of inorganic acids
    • C08B31/066Starch phosphates, e.g. phosphorylated starch

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Abstract

The present invention provides a kind of with oral solution that is hypoglycemic, improving immunity, belong to field of biological, the flavor formula of the oral solution are as follows: the citric acid and suitable essence of the beta-cyclodextrin of 0.13-0.17%, the xylitol of 13-17%, 0.13-0.17% are added in laminaran solution.Wherein, laminaran is isolated from kelp, and is chemically modified with Sodium Ascorbyl Phosphate, and preparation method includes ultrasonic wave extraction laminarin;Classification alcohol deposition method is purified, and ethyl alcohol to the concentration comprising 90-95% is added into laminarin solution is 28-32%, is stood, filtering, is taken precipitating.Laminaran in the oral solution is higher to PTP1B inhibiting rate, increases insulin sensitivity, to improve its ability for reducing blood glucose, and polysaccharide retention rate with higher in its preparation process.

Description

A kind of oral solution with hypoglycemic raising immunity
Technical field
The invention belongs to field of biological, and in particular to a kind of with oral solution that is hypoglycemic, improving immunity.
Background technique
Kelp also known as thallus laminariae, sea grass, river Chinese cabbage belong to Phaeophyta, Phaeophyceae, Laminariales, Laminariaceae, Larminaria, are a kind of The large ocean plant of dual-purpose of drug and food.Currently, bioactive substance isolates and purifies and nutrition and health care research and new in kelp The exploitation of type kelp series of products is the hot spot that domestic and foreign scholars study.Kelp is as having both edible value and medical value " natural health care ", active material are abundant.Up to the present, the kelp bioactive substance of discovery mainly has: laminarin, Acidic polysaccharides substance, rock algae galactogen sulfuric ester, laminine, galacturonic acid, taurine, zosterin, bifid because Son.In many active materials, laminarin is the most prominent to the Nutrition and health function effect of kelp.The study found that extra large Band polysaccharide adjust immune, antitumor, anticoagulation, it is anti-oxidant, in terms of all play unique effect.It is more in kelp Sugar substance is abundant, and the difference of different polysaccharide material structures and property also makes it have different bioactivity, at present from kelp It was found that polysaccharide there are three types of: algin, fucoidin, laminaran.Laminaran is also known as laminarin, the content in kelp Accounting for about 1%, laminaran is one kind of neutral glucan polymers, and sulfonated products are laminarin sulfate, the study found that both Polysaccharide can promote the immune function of body, have apparent reduction to act on serum cholesterol, laminaran and artificial sulphur The laminarin sulfate of change is compared, stronger to the immunoregulation effect of body.
The prior art such as Authorization Notice No. is the Chinese invention patent of 102153669 B of CN, and it is brown to disclose a kind of low molecule The preparation method of algae glucan.By alkali metal carbonate solution by seaweed tissue and cytoclasis, and it is adjusted with acid appropriate pH Value, extracts alginic acid, algal polysaccharide and laminaran therein, then by this starch hydrogen peroxide degradation, become flat Brown seaweed glucan of the average molecular weight in 800-1000 dalton.It is reported that this kind of low-molecular-weight algal glucan can enhance human body Immunity and plant resistance.
Summary of the invention
The purpose of the present invention is to provide a kind of laminaran, which can be with Protein-tyrosine-phosphatase (PTP1B) active site combines, and enzyme is made to lose activity, and increases insulin sensitivity, while partial phosphate ester base energy and saccharide ring On hydroxyl form ester bond, be partially formed helical structure in active higher order conformation in sugar chain, increase order, improve pharmacology Activity.
The technical solution that the present invention is taken to achieve the above object are as follows:
A kind of laminaran is provided, kelp is isolated from, it is characterised in that: laminaran is carried out with Sodium Ascorbyl Phosphate Chemical modification.Laminaran is that one kind is prevalent in a kind of intracorporal polysaccharide of brown alga.Its main composition is by C1And C3Knot β-D glucopyranose the poly-compounds of conjunction, Protein-tyrosine-phosphatase (PTP1B) are the negative tune of Insulin signaling pathway The factor is saved, after being modified with Sodium Ascorbyl Phosphate laminaran, phosphate can be with the active site knot of PTP1B It closing, accurate trapped enzyme changes the space conformation of enzyme, enzyme is made to lose activity to modify the carboxyl on enzyme side chain, thus Increase insulin sensitivity, increases utilization of the tissue to glucose, improve the ability for reducing blood glucose.Triple helix configuration is polysaccharide Most active space conformation, and after modification, it is connected on side chain, increases branched building block number, molecular structure changes, sugar Ring conformation is distorted or changes, non-covalent bond easy to form, and the repulsive interaction between these anionic groups makes sugar chain segment Elongation, partial phosphate ester base may form ester bond with the hydroxyl in saccharide ring again, therefore be partially formed helical structure in sugar chain and be in Active higher order conformation, and order increases, so that pharmacological activity is higher.
Preferably, laminaran has the function of hypoglycemic and improves immunity.Laminaran can be remarkably reinforced small The generation of mouse hemolysin enhances humoral immunity, to have humidification to immunity of organisms.Laminaran is to diabetic mice Blood glucose has the reduction effect of affirmative, can adjust the protein metabolism of diabetic mice, and have guarantor to the damage of beta Cell of islet Shield effect, promotes Islet Cells Insulin secretion, reachable to the inhibiting rate of PTP1B when laminaran concentration is 1.3mg/mL 91%, increase insulin sensitivity.
It is another object of the present invention to provide a kind of preparation method of above-mentioned laminaran, which can be with Protein forms amido bond, inhibits polysaccharide and protein to form amino covalence key in de- protein process, improves the reservation of polysaccharide Rate.The technical solution that the present invention is taken to achieve the above object are as follows:
A kind of preparation method of laminaran is provided, comprising the following steps:
S1, ultrasonic wave extraction laminarin;
S2, classification alcohol deposition method are purified: ethyl alcohol to the concentration that 90-95% is added into laminarin solution is 28- 32%, it stands, filtering takes precipitating.Polysaccharide material is abundant in kelp, and presently found polysaccharide has algin, fucoidin, brown alga Three kinds of starch.Single polysaccharide component is obtained, which must be purified, ethanol precipitation method is using different more Sugar has different solubilities in the ethyl alcohol of various concentration, changes the concentration of ethyl alcohol, precipitates by several times.Ethyl alcohol provided by the invention adds Amount and ethyl alcohol mass fraction are that best alcohol analyses condition, and laminaran yield is higher.
Preferably, the extracting method of step S1 are as follows: add according to the ratio of solid-to-liquid ratio 1:70-75 (g/mL) into distilled water Enter dry Kelp Powder, ultrasonication 55-65min at 62-68 DEG C.Kelp has very strong swellability, is swollen when solid-to-liquid ratio is too high Insufficient, recovery rate is low, more than appropriate swellbility solid-to-liquid ratio when, swelling excessively also results in recovery rate decline;Ultrasonic wave is logical It crosses mechanical shear stress and carrys out assisted extraction, ultrasonic time is too short, and mechanical shearing effect is insufficient, and recovery rate is not high, ultrasonic time It is too long, macromolecular polysaccharide chain rupture can be made, also reduce recovery rate;Temperature increases the surface tension that can make liquid medium and viscosity drop It is low, accelerate the diffusion of solution, promote intracellular polysaccharide to external diffusion, but when the temperature is excessively high, the parts of polysaccharide structures can be by It destroys.
Preferably, step S1 carries out ungrease treatment before extracting laminarin.Polysaccharide is the strong macromolecular chemical combination of polarity Object, carrying out degreasing to raw material can make aqueous solution be easier to go deep into inside raw material, be conducive to the dissolution of polysaccharide.
Preferably, the mesh number of Kelp Powder is 70-90 mesh.Kelp mesh number is bigger, and the dissolution rate of polysaccharide is higher, but works as mesh number It when excessive, is easy hardened, is unfavorable for the dissolution of polysaccharide.
Preferably, laminaran uses Sevage method to carry out de- albumen processing before purification.Containing compared with polyprotein in kelp Matter, protein and polysaccharide are all hydrophilic macromers, all have structural complexity, the diversity of composition, so that the separation of polysaccharide is pure Change relatively difficult.Albumen is taken off using Sevage method, mild condition can avoid the degradation of polysaccharide, the purity of polysaccharide of acquisition, retention rate It is preferable with the rate of recovery.
Preferably, Sevage method is handled before taking off albumen with ethyl acetoacetate.In identical de- albumen treatment conditions Under, with the increase of albumen removal rate, the amino in protein is in the reactiveness of non-agglomerated, be capable of providing reactive group with The hydroxyl of reduction end forms amino covalence key by Maillard reaction in polysaccharide molecule, and protein-polysaccharide forms netted composite junction Structure, stable structure is survivable, when to removal of protein, declines polysaccharide retention rate.Acetoacetate second is used before de- albumen Ester handles Thick many candies, and the amino on protein is reacted with ethyl acetoacetate, amido bond is formed, to take off egg in the later period Inhibit polysaccharide and protein to form amino covalence key in white process, further improves the retention rate of polysaccharide.
The present invention also provides a kind of laminarans to have the use in oral solution that is hypoglycemic, improving immunity in preparation On the way.There are medicine diformin tablet, Compound Reserpine, Lipitor currently used for three high common clinical medicines for the treatment of, although to controlling It treats three height to have obvious effects on but also have certain toxic side effect, therefore, develops and have no toxic side effect and therapeutic effect is ideal Newtype drug it is most important for the mankind.Kelp has nontoxic inherent advantage as natural green plant, together When, oral solution is a kind of new formulation that three kinds of decoction, syrup and injection dosage forms combine;It has taking dose it is small, Absorb the advantages that very fast, quality is stable, easy to carry and use, easy to maintain.
Preferably, the flavor formula of oral solution are as follows: β-ring paste of 0.13-0.17wt% is added in laminaran solution The citric acid and suitable essence of essence, the xylitol of 13-17wt%, 0.13-0.17wt%.Flavor provided by the invention modulates skill Art adjusts the color of product from the sense of taste, smell, vision etc., fragrance, makes product sour and sweet palatability, pure in mouth feel.
The invention has the benefit that
1) present invention increases insulin sensitivity, increases tissue to the benefit of glucose by modifying laminaran With raising reduces blood glucose ability, and is partially formed helical structure in active higher order conformation in sugar chain, increases order, mentions High pharmacological activity;
2) present invention improves the purity of polysaccharide, and by advancing in de- albumen by carrying out de- albumen processing to polysaccharide Row pretreatment inhibits polysaccharide and protein to form amino covalence key during Deproteinated, improves the retention rate of polysaccharide;
3) present invention is by optimizing ultrasonication condition, alcohol precipitation condition, improving more to kelp ungrease treatment The recovery rate of sugar and the yield of laminaran.
Detailed description of the invention
Fig. 1 is the schematic diagram of laminaran of the invention to the inhibiting rate of PTP1B;
Fig. 2 is the schematic diagram of FBG level in diabetes B mice serum after laminaran of the invention is administered;
Fig. 3 is the schematic diagram of the half hemolytic value of mouse after laminaran of the invention is administered;
Fig. 4 is the schematic diagram of polysaccharide retention rate of the invention, protein removal rate.
Specific embodiment
Present invention is further described in detail with reference to embodiments:
Embodiment 1:
A kind of preparation method of laminaran:
Kelp dry powder is taken, is added 95% ethyl alcohol of 5 times of volumes, ultrasonic degreasing 25min is taken out under vacuum condition Filter is collected filter residue, is repeated 3 times, and dries filter residue, smashed 70-90 mesh.
70-90 mesh kelp dry powder is weighed, dry kelp is added into distilled water according to the ratio of solid-to-liquid ratio 1:70-75 (g/mL) Powder, ultrasonication 55-65min at 62-68 DEG C are added ethyl acetoacetate and are handled, the rear sevage that 1/3 volume is added Reagent, after magnetic stirrer 30min, 1000rpm is centrifuged 15min, collects supernatant, is repeated 5 times, and is 3500 films with combined closure system Dialysis, is concentrated under reduced pressure into 1/5 volume, and ethyl alcohol to the concentration that 90-95% is added is 28-32%, is stood, and filtering takes precipitating, depressurizes It is concentrated freeze-dried, obtain laminaran.
It takes laminaran to be dissolved in 2% Sodium Ascorbyl Phosphate solution, stirs 30min under 75 DEG C of water bath conditions, it is cold But to ice water is added after room temperature, 95% ethyl alcohol of three times volume is added, stands, precipitating is precipitated, is dissolved in after precipitating is collected by centrifugation In water, flowing water dialysis 2d, distilled water dialysis 2d, liquid pressure-reducing in bag filter is concentrated freeze-dried, the laminaran after being modified. Laminaran is that one kind is prevalent in a kind of intracorporal polysaccharide of brown alga.Its main composition is by C1And C3In conjunction with β-D pyrrole Glucopyranoside poly-compounds, Protein-tyrosine-phosphatase (PTP1B) are the negative growth factors of Insulin signaling pathway, are used After Sodium Ascorbyl Phosphate modifies laminaran, phosphate can be accurate to capture in conjunction with the active site of PTP1B Enzyme changes the space conformation of enzyme, loses activity to modify the carboxyl on enzyme side chain, to increase insulin sensitivity Property, increase utilization of the tissue to glucose, improves the ability for reducing blood glucose.Triple helix configuration is the most active space of polysaccharide Conformation, and after modification, it is connected on side chain, increases branched building block number, molecular structure changes, and saccharide ring conformation is distorted Or transformation, non-covalent bond easy to form, and the repulsive interaction between these anionic groups makes sugar chain chain segment elongation, partial phosphate ester Base may form ester bond with the hydroxyl in saccharide ring again, therefore be partially formed helical structure in active advanced structure in sugar chain As, and order increases, so that activity is higher.
Embodiment 2:
A kind of preparation method of laminaran:
80g kelp dry powder is taken, is added 95% ethyl alcohol of 5 times of volumes, ultrasonic degreasing 25min is carried out under vacuum condition It filters, collects filter residue, be repeated 3 times, dry filter residue, smashed 80 meshes.
80 mesh kelp dry powder 5g are weighed, after distilled water 312.5mL is added, ultrasonic echography handles 60min at 65 DEG C, rear to add Enter the sevage reagent of 1/3 volume, after magnetic stirrer 30min, 1000rpm is centrifuged 15min, collects supernatant, repeats 5 It is secondary, it is the dialysis of 3500 films with combined closure system, is concentrated under reduced pressure into 1/5 volume, ethyl alcohol to the concentration for being added 95% is 30%, precipitating is taken, Freeze-drying, as laminaran is concentrated under reduced pressure.
Embodiment 3:
A kind of preparation method of laminaran:
2g laminaran made from Example 2 is dissolved in the Sodium Ascorbyl Phosphate solution that 100mL mass fraction is 2% In, 30min is stirred under 75 DEG C of water bath conditions, 30mL ice water is added after being cooled to room temperature, 95% ethyl alcohol of three times volume is added, Precipitating is precipitated in standing, and soluble in water, flowing water dialysis 2d after precipitating is collected by centrifugation, and distilled water dialysis 2d subtracts liquid in bag filter Press concentrated freeze-dried, the laminaran after being modified.
Embodiment 4:
A kind of preparation method of laminaran:
The ethyl acetoacetate that 6mL 3mmol/L is added before de- albumen handles 40min, and rest part and embodiment 2 are complete Unanimously.
Embodiment 5:
A kind of preparation method with oral solution that is hypoglycemic, improving immunity, comprising:
Dissolution: the laminaran for taking above-described embodiment to obtain is dissolved in water, and obtains the laminaran solution of 10mg/mL;
Filtering: the insoluble substance in solution is filtered out;
Flavor mixing: in solution after filtration it is middle be added the beta-cyclodextrin of 0.15wt%, 15wt% xylitol, The citric acid of 0.15wt% and suitable essence, stir evenly;
Sterilizing: high pressure steam sterilization, 121 DEG C of sterilization 30min are used;
It is filling: it is filling using the progress of 20mL brown oral liquid glass bottle, it needs that empty Bottle and bottle cap is carried out to clean before filling to disappear Poison.
Oral solution kelp fishy smell glue obtained is light, color be in dark brown or sepia, taste moderately sour and sweet, delicate mouthfeel, There is no peculiar smell, appearance clear is visible by naked eyes impurity, allows to have a small amount of muddy or precipitating, sensory evaluation 98 to divide.
Test example 1:
Measurement to protein-tyrosine-phosphatase (PTP1B) inhibitory activity:
The preparation of Stock buffer: 50mmol/L hydroxyethyl piperazine second thiosulfonic acid (Hepes), 1mmol/L ethylenediamine tetraacetic Acetic acid (EDTA), 1mmol/L dithiothreitol (DTT) (DTT), 0.05% Nonidet P40 (NP-40) adjust pH to 7.2,4 DEG C save.
The preparation of Buffer A: 100mmol/LHepes, 1mmol/LEDTA adjust pH to 7.0,4 DEG C of preservations.
Reaction terminating liquid: NaOH 10mol/L.
PTP1B is diluted to 2 μ g/mL with stock buffer, dissolves substrate PNPP to 17.6mmol/L with buffer A; 170 μ L substrate solutions are added in each hole of 96 orifice plates;In sample group and blank group, 10 μ L samples are added in every hole, right According in group, 10 μ L dimethyl sulfoxides (DMSO) are added in every hole, incubate 10min at 37 DEG C;96 orifice plates are placed on ice, in sample group 20 μ L enzyme solutions are added with hole every in control group, 20 μ L stock buffer are added in blank group, react 30min at 37 DEG C;Add Enter 20 μ L 10mol/LNaOH, terminates reaction.With the absorbance at microplate reader measurement 405nm, the inhibiting rate to PTP1B is calculated. It is as follows to the calculation formula of PTP1B inhibiting rate:
PTP1B inhibiting rate (%)=(A-Ab)/Ac
Wherein, A, Ab、AcRespectively sample group, blank group, the absorbance of control group.To the inhibiting rate measurement result of PTP1B See Fig. 1.
The measurement of hypoglycemic ability:
Male mice 80 of 24-26g are taken, normal diet is fed 1 week, takes 20 to be only used as control group at random, raising is common Feed.Remaining 60 are fed high lipid food 4 weeks, and hyperlipidemia mass formed by blood stasis mouse model is established, and alloxan is then injected intraperitoneally and establishes 2 types Diabetic mouse model.Alloxan is configured to 2.5g/L injection with physiological saline, the mouse abdomen fed to high lipid food Chamber injects alloxan, and every 1kg mouse is administered 50mg, the next day 1 time, continuous 3 times, control group injects the physiological saline of equivalent.Most Afterwards the 3rd day after one injection, cuts tail blood sampling and detect basic fasting blood-glucose (FBG) level, will be greater than 2 standard deviations of control group mean Mouse be randomly divided into model group and administration group, every group 20.It is 150mg/ that laminaran, which is configured to concentration, with physiological saline ML mixed liquor, administration group give daily 1.50g/kg laminaran stomach-filling, and control group and model group give daily 1mL/50g physiology Salt water stomach-filling, normal diet are fed 2 weeks.After treatment end, groups of animals fasting (free water) 12h cuts tail inspection the next morning It is horizontal to survey FBG.The measurement result of fasting blood-glucose (FBG) level is shown in Fig. 2 in serum.
As seen from Figure 1, as inhibiting rate of the raising of laminaran concentration to PTP1B increases, increase early period comparatively fast, Later period increases, and the laminaran in embodiment 3 is higher than embodiment 2 to the inhibiting rate of PTP1B, this explanation, with ascorbic acid phosphoric acid After ester sodium modifies laminaran, the inhibiting rate of PTP1B is significantly improved.
As seen from Figure 2, the horizontal fall of FBG of mouse is apparently higher than after the laminaran administration in embodiment 3 Embodiment 2, i.e. hypoglycemic ability in embodiment 3 are higher, this explanation repairs laminaran with Sodium Ascorbyl Phosphate After decorations, the inhibiting rate to PTP1B is improved, increases insulin sensitivity, increases utilization of the tissue to glucose, improves drop The ability of hypoglycemia.
Test example 2:
Improve the measurement of immunity ability:
Male mice 30 of weight 18-22g are taken, are randomly divided into 3 groups, laminaran is configured to concentration with physiological saline For 5mg/mL mixed liquor, administration group gives daily 100mg/kg laminaran stomach-filling, and control group gives daily 1mL/50g physiology salt Water stomach-filling, successive administration 8d, 1 time a day, rear mouse weighing, eyeball take blood to last dose for 24 hours, and 3000rpm is centrifuged 10min, takes Serum is stand-by.
By serum with 500 times of normal saline dilution, take 1mL dilute after serum, be added 10% hematocrit sheep of 0.5mL it is red Cell (SRBC) suspension, ice bath are added 10 times of 1mL normal saline dilution of guinea pig serum, blank group not increase serum, 37 DEG C of water Bath heat preservation 10min, after ice bath immediately, terminate reaction.2000rpm is centrifuged 10min, takes 1mL supernatant, 3mL Dou Shi reagent, mixing is put 10min is set, supernatant is taken, measures the absorbance at 540nm.0.25mL 10%SRBC suspension is taken, 3.75mL Dou Shi examination is added Agent measures its absorbance at 540nm, as half hemolytic value.Serum hemolysis cellulose content is with half hemolytic value HC50It indicates. Half hemolytic value HC50Calculation formula it is as follows:
HC50=(OD value when sample OD value/SRBC half hemolysis) × extension rate
Half hemolytic value HC50Measurement result see Fig. 3.
As seen from Figure 3, the half hemolytic value of mouse is apparently higher than embodiment after the laminaran administration in embodiment 3 2, this explanation, after being modified with Sodium Ascorbyl Phosphate laminaran, being partially formed helical structure in sugar chain is in have work Property higher order conformation, and order increase, so that pharmacological activity is higher, the ability for improving immunity is stronger.
Test example 3:
200mL ultrasound leaching liquor is taken, the ethyl alcohol that the mass fraction of 4 times of volumes is 95% is added, stands overnight, 2000rpm It is centrifuged 15min, precipitating is collected, obtains kelp raw polysaccharide after freeze-drying, calculate its polyoses content and protein content.After de- albumen Dialyzate is concentrated under reduced pressure and is lyophilized to obtain de- proteoglycan, polyoses content is measured using phend-sulphuric acid, using biuret method Protein content is measured, polysaccharide retention rate, protein removal rate are calculated.Calculation formula is as follows:
Protein removal rate (%)=(A0-A1)/A0× 100%
Wherein, A0, A1Protein content in sample before and after respectively de- albumen;
Polysaccharide retention rate (%)=B1/B0× 100%
Wherein, B0, B1Polyoses content in sample before and after respectively de- albumen.The measurement of polysaccharide retention rate, protein removal rate As a result see Fig. 4.
As seen from Figure 4, while guaranteeing protein removal rate, the polysaccharide retention rate of embodiment 4 is apparently higher than reality Example 2 is applied, this explanation is handled with ethyl acetoacetate before taking off albumen, inhibits polysaccharide and egg during the later period is Deproteinated White matter forms amino covalence key, further improves the retention rate of polysaccharide.
The prior art of routine techniques dawn known to those skilled in the art in above-described embodiment, therefore herein no longer in detail It repeats.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, the ordinary skill people of this field Member can also make a variety of changes and modification without departing from the spirit and scope of the present invention.Therefore, all equivalent Technical solution also belong to scope of the invention, scope of patent protection of the invention should be defined by the claims.

Claims (10)

1. a kind of laminaran, it is characterised in that: the laminaran is chemically modified with Sodium Ascorbyl Phosphate.
2. a kind of laminaran according to claim 1, it is characterised in that: the laminaran has hypoglycemic and improves The effect of immunity.
3. a kind of preparation method of laminaran of any of claims 1 or 2, which comprises the following steps:
S1, ultrasonic wave extraction obtain laminarin;
S2, classification alcohol deposition method are purified: ethyl alcohol to the concentration that 90-95% is added into laminarin solution is 28-32%, quiet It sets, filters, take precipitating.
4. preparation method according to claim 3, it is characterised in that: the extracting method of the step S1 are as follows: according to 1:70- Dry Kelp Powder is added into distilled water for the ratio of 75 (g/mL), ultrasonication 55-65min at 62-68 DEG C.
5. preparation method according to claim 3, it is characterised in that: the step S1 is taken off before extracting laminarin Rouge processing.
6. preparation method according to claim 3, it is characterised in that: the mesh number of the Kelp Powder is 70-90 mesh.
7. preparation method according to claim 3, it is characterised in that: the laminaran use before purification Sevage method into The de- albumen processing of row.
8. preparation method according to claim 7, it is characterised in that: the Sevage method uses acetoacetate second before taking off albumen Ester is handled.
9. a kind of laminaran described in claim any one of 1-8 preparation have it is hypoglycemic, improve immunity Purposes in oral solution.
10. purposes according to claim 9, it is characterised in that: the flavor formula of the oral solution are as follows: laminaran solution It is middle that the beta-cyclodextrin of 0.13-0.17wt%, the xylitol of 13-17wt%, the citric acid of 0.13-0.17wt% and suitable is added Essence.
CN201910701240.7A 2019-07-31 2019-07-31 Oral liquid with effects of reducing blood sugar and improving immunity Active CN110372803B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1262902A (en) * 1999-12-07 2000-08-16 倪智 Kelp beverage and its preparation process
CN102153669A (en) * 2010-05-12 2011-08-17 北京雷力联合海洋生物科技有限公司 Preparation method of low-molecule brown seaweed glucan
CN102417548A (en) * 2011-11-03 2012-04-18 沈阳科思高科技有限公司 Method for extracting active polysaccharides from brown algae

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1262902A (en) * 1999-12-07 2000-08-16 倪智 Kelp beverage and its preparation process
CN102153669A (en) * 2010-05-12 2011-08-17 北京雷力联合海洋生物科技有限公司 Preparation method of low-molecule brown seaweed glucan
CN102417548A (en) * 2011-11-03 2012-04-18 沈阳科思高科技有限公司 Method for extracting active polysaccharides from brown algae

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