CN105852060A - Starch-polyphenol composite nano-granules and preparation process thereof - Google Patents

Starch-polyphenol composite nano-granules and preparation process thereof Download PDF

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CN105852060A
CN105852060A CN201610231125.4A CN201610231125A CN105852060A CN 105852060 A CN105852060 A CN 105852060A CN 201610231125 A CN201610231125 A CN 201610231125A CN 105852060 A CN105852060 A CN 105852060A
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starch
polyphenol
nano
composite nanometer
nanometer particle
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CN105852060B (en
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孙庆杰
熊柳
刘成珍
葛胜菊
杨洁
常然然
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Qingdao Agricultural University
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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Abstract

The invention relates to starch-polyphenol composite nano-granules and a preparation process thereof. The preparation process comprises the steps that 1, a biological enzyme method is adopted to prepare debranched starch nano-granules: enzymolysis is conducted on gelatinized starch by using pullulanase to prepare a short amylase solution, ethyl alcohol titration is performed to prepare the starch nano-granules, and freeze-drying is performed to obtain starch nano-granule powder; 2, polyphenol adsorption and loading are performed to prepare the starch-polyphenol composite nano-granules: starch nano-granule turbid liquid is prepared, different amounts of polyphenol are added, the liquid is put in an oscillating water bath kettle, adsorption is performed at room temperature for different time, and ultra-filtration centrifugation, precipitate washing and vacuum freeze-drying are performed. The starch-polyphenol composite nano-granules are small in size, attachment forces of the nano-granules to tissues can be increased, the polyphenol delivery efficiency of the gastrointestinal tract is improved, the retention time of the polyphenol in the gastrointestinal tract is prolonged, and the bioavailability is improved. The starch-polyphenol composite nano-granules protect the polyphenol having bioactivity, prevent light in the outside environment, a pH value, oxygen and the like from affecting the polyphenol and improve the stability of the polyphenol.

Description

A kind of starch-polyphenol composite nanometer particle and preparation technology thereof
Technical field
The present invention relates to nano-particle preparation and food and medicine field, be specifically related to biological enzyme de-nano-starch granule and nanometer Grain absorption loads the preparation technology of polyphenol.
Background technology
Tea polyphenols (TP) is the polyphenols extracted from Folium Camelliae sinensis, and polyphenol total amount accounts for the 18%~36% of dry weight of tea leaves, has extensively Pharmacological action.In Folium Camelliae sinensis, Polyphenols includes catechin, flavone and glycoside thereof, anthocyanidin and leucoanthocyanidin and phenolic acid and depside etc., Wherein catechin accounts for about the 70% of polyphenol total amount.Its key component is epicatechin (EC), epigallo catechin (EGC), table Catechin and gallate (ECG), epigallocatechin gallate (EGCG) (EGCG).The flavour of Folium Camelliae sinensis is not only had by catechin Material impact, and numerous studies show, and catechin also has important biological activity, at antioxidation, removes free radical, anti-mattress Antiinflammatory, antiviral, prevent the aspects such as cardiovascular disease, lowering blood pressure and blood fat and prophylaxis of cancer to have important function.But, tea is many Phenol is unstable, meets highly basic, strong acid, illumination, Gao Re and transition metal perishable.
In recent years, owing to the nanometer medicine-carried system of macromolecular material receives more and more attention, the especially nanometer of natural polysaecharides Carrier.Starch be a class important there is biodegradability, renewable, the natural polysaccharide family macromolecule material of good biocompatibility Material, abundance, cheap, obtain certain applications as carrier material in drug controlled release field.By carrier bag Bury or binding activity material prepares nano-particle, both can reduce active substance loss in processing or storage, improve it and resist Oxidation activity, again can be effectively by the gastrointestinal location of active species delivery to human body.And improve it by controlling release active substance Bioavailability, keeps the structure of active substance, effect simultaneously and covers its mouthfeel difference etc..
Summary of the invention
For polyphenol storing, transport, the problem such as oxidizable, easy decomposition present in the course of processing, it is an object of the invention to carry For a kind of starch-polyphenol composite nanometer particle and preparation technology thereof, utilize nano-starch polyhydroxy, short texture, in have cavity Characteristic, can adsorb loading polyphenol, can improve tea polyphenols stability in the sensitive environment such as light, heat, oxygen, and then improve it Antioxidant activity.
The technical scheme that the present invention takes is:
A kind of preparation technology of starch-polyphenol composite nanometer particle, step is as follows:
(1) preparation of short amylose solution: first preparation mass volume ratio is the gelatinized starch breast of 1-15%, is added thereto to The pullulanase of 100-500U/mL, gelatinized starch breast is 100:2-7 with the volume ratio of pullulanase, 40-60 DEG C of enzymolysis 6-12 hour, Obtain short amylose solution;
(2) preparation of starch nanometer granule: be slowly added dropwise ethanol in short amylose solution, drip while stirring, short straight chain Starch solution is 1:2-5 with the volume ratio of ethanol, continues stirring 1-5h after dripping ethanol, centrifugal, and water washing and precipitating obtains starch Nano-particle, lyophilizing obtains starch nanometer granule powder;
(3) preparation of starch-polyphenol composite nanometer particle: prepare the shallow lake of mass volume ratio 5%-10% with phosphoric acid or acetate buffer solution Powder nano-particle suspension, adds polyphenol, makes the polyphenol final concentration of 1-20mM in suspension, 12-30 DEG C of absorption 0.1-24h, Keeping vibration in adsorption process, adsorbed rear ultrafiltration and be centrifuged, water washing and precipitating, lyophilizing obtains starch-polyphenol composite nanometer particle.
Further, in step (1), preparation starch used by gelatinized starch breast is waxy corn starch, waxy rice starch, wax Any one or a few in matter potato starch, Waxy wheat starch or common corn starch, the preparation of gelatinized starch breast uses The 1M phosphate buffer of pH4-6.
Further, in step (2) polyphenol be catechin (C), epicatechin (EC), L-Epicatechin gallate (ECG), One or more in epigallocatechin gallate (EGCG) (EGCG) or procyanidin (PAC).
Further, in step (2), (3), the number of times of water washing and precipitating is 2-3 time, and the mode of washing is: adds in precipitation and goes Ionized water, will precipitate spin-up, and 3000-6000rpm is centrifuged 10-20 minute, is precipitated.
Further, in step (3) buffer be pH6.5-7.5, concentration be 1M phosphoric acid or acetic acid.
Further, in step (2), (3), lyophilizing technique is: vacuum 5-10Pa, temperature-80--60 DEG C, time 48-72 Hour.
Further, the absorption in step (3) completes in shaking bath pot, and frequency of oscillation is 400-800rpm.
Further, during in step (3), ultrafiltration is centrifugal, filter sizes is 200-450nm.
Further, rotating speed 3000-6000rpm centrifugal in step (2), (3), centrifugation time 10-20 minute.
It is a further object to provide the starch-polyphenol composite nanometer particle prepared with above-mentioned technique.
The invention have the benefit that
(1) starch prepared-polyphenol composite nanometer particle, nano-particles size is little, can increase nano-particle attached to organize Put forth effort, improve the gastrointestinal tract transfer efficiency to polyphenol, and by reducing the impact of intestinal purge mechanism and the surface of polyphenol can be increased Activity, extends the polyphenol holdup time in gastrointestinal tract, improves its bioavailability.Protection has bioactive polyphenol, prevents The impact on it such as light in external environment, pH value, oxygen, improves the stability of polyphenol;Protection active site, shelters bad The release of local flavor;Effectively reduce addition and the toxic and side effects of bioactive ingredients.(2) starch-polyphenol prepared is compound to be received The characteristics such as rice grain, has charging ratio high, low cost, and polyphenol active function is strong, and polyphenol has in Imitative gastroenteric environments Effect of slow release.
Accompanying drawing explanation
Fig. 1 be embodiment 2,7-12,14,19-24,26,31-36,38, in 43-48 nano-particle with different adsorption times Efficiency of loading.
Note: in Fig. 1, abscissa is different adsorption times (min), and vertical coordinate is charging ratio (%)
Fig. 2 be embodiment 2,7-12,14,19-24,26,31-36,38, in 43-48 nano-particle with different adsorption times Useful load.
Note: in Fig. 2, abscissa is different adsorption times (min), and vertical coordinate is charging ratio (μ g/mg SNPs)
Fig. 3 be in embodiment 1-6,13-18,25-30,37-42 nano-particle with the charging ratio (quality base) of different polyphenol additions.
Note: in Fig. 3, abscissa is the amount (mM) adding polyphenol, and vertical coordinate is useful load (μ g/mgSNPs)
Fig. 4 be in embodiment 1-6,13-18,25-30,37-42 nano-particle with the charging ratio (mole base) of different polyphenol additions.
Note: in Fig. 4, abscissa is the amount (mM) adding polyphenol, and vertical coordinate is charging ratio (μm ol/mgSNPs)
Fig. 5 is langmuir adsorption dynamics adsorption kinetics simulation in embodiment 1-6,13-18,25-30,37-42.
Note: in Fig. 5, abscissa is that absorption reaches the concentration (mM) of polyphenol during balance, and vertical coordinate is the amount of adsorbing polyphenols (μg/mgSNPs)
Fig. 6 be in embodiment 1-6,13-18,25-30,37-42 nano-particle with the change of size of different polyphenol additions.
Note: in Fig. 6, abscissa is the amount (mM) adding polyphenol, and vertical coordinate is the particle diameter (nm) of nano-particle
Fig. 7 be in embodiment 1-6,13-18,25-30,37-42 nano-particle with the zeta potential change of different polyphenol additions.
Note: in Fig. 7, abscissa is the amount (mM) adding polyphenol, and vertical coordinate is the current potential (mV) of nano-particle
Fig. 8 be embodiment 2,7-12,14,19-24,26,31-36,38, in 43-48 nano-particle with different adsorption times Change of size.
Note: in Fig. 8, abscissa is different adsorption times (min), and vertical coordinate is the particle diameter (nm) of nano-particle
Fig. 9 be embodiment 2,7-12,14,19-24,26,31-36,38, in 43-48 nano-particle with different adsorption times Zeta potential change.
Note: in Fig. 9, abscissa is different adsorption times (min), and vertical coordinate is the current potential (mV) of nano-particle
Figure 10 is embodiment 2 starch-catechin composite nanometer particle transmission electron microscope picture.
Figure 11 is embodiment 14 starch-epicatechin composite nanometer particle transmission electron microscope picture.
Figure 12 is embodiment 26 starch-epigallocatechin gallate (EGCG) composite nanometer particle transmission electron microscope picture.
Figure 13 is embodiment 38 starch-procyanidin composite nanometer particle transmission electron microscope picture.
Figure 14 is embodiment 2 starch-catechin composite nanometer particle infrared spectrogram.
Figure 15 is embodiment 14 starch-epicatechin composite nanometer particle infrared spectrogram.
Figure 16 is embodiment 26 starch-epigallocatechin gallate (EGCG) composite nanometer particle infrared spectrogram.
Figure 17 is embodiment 38 starch-procyanidin composite nanometer particle infrared spectrogram.
Figure 18 is embodiment 2,14,26,38 nano-particle slow release figure in simulated gastric fluid environment.
Note: Tu18Zhong, abscissa is release time (min), and vertical coordinate is the burst size (%) of polyphenol
Figure 19 is embodiment 2,14,26,38 nano-particle slow release figure in simulated intestinal fluid environment.
Note: Tu19Zhong, abscissa is release time (min), and vertical coordinate is the burst size (%) of polyphenol
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, the present invention is described in further details.
Embodiment 1-12
Prepare starch-catechin (C-SNPs) composite nanometer particle in accordance with the following steps:
(1) preparation of short amylose solution: first select waxy rice starch, prepares with the 1M phosphate buffer of pH4.5 Mass volume ratio is the gelatinized starch breast of 10%, is added thereto to the pullulanase of 300U/mL, gelatinized starch breast and pullulanase Volume ratio be 100:5,55 DEG C of enzymolysis 8 hours, obtain short amylose solution;
(2) preparation of starch nanometer granule: be slowly added dropwise ethanol in short amylose solution, drip while stirring, short straight chain Starch solution is 1:4 with the volume ratio of ethanol, continues stirring 2h after dripping ethanol, and then 5000rpm is centrifuged 10 minutes, to Adding deionized water in precipitation, will precipitate spin-up, 5000rpm is centrifuged 10 minutes, completes once to wash, repeats and once wash Process, obtains starch nanometer granule, and lyophilizing (vacuum 10Pa, temperature-70 DEG C, 50 hours time) obtains starch nano Grain powder;
(3) preparation of C-SNPs composite nanometer particle: prepare mass volume ratio with the phosphate buffer that pH6.5, concentration are 1M The starch nanometer granule suspension of 8%, add catechin, make the catechin final concentration of 1mM in suspension, 2mM, 6mM, 10mM, 15mM or 20mM, 15 DEG C of absorption 10min, 0.5h, 1h, 2h, 6h, 10h or 24h, adsorption process keeps Vibration, frequency is 500rpm, carries out ultrafiltration with the filter membrane that aperture is 300nm and be centrifuged, with the method for step (2) after having adsorbed Water washing and precipitating 3 times, lyophilizing (vacuum 10Pa, temperature-70 DEG C, 50 hours time) obtains C-SNPs composite nanometer particle.
Table 1 embodiment 1-12 variable parameter is arranged
Embodiment 13-24
Prepare starch-epicatechin (EC-SNPs) composite nanometer particle in accordance with the following steps:
(1) preparation of short amylose solution: first select waxy corn starch, prepares matter with the 1M phosphate buffer of pH5 Amount volume ratio is the gelatinized starch breast of 8%, is added thereto to the pullulanase of 250U/mL, gelatinized starch breast and the body of pullulanase Long-pending than being 100:4,50 DEG C of enzymolysis 10 hours, obtain short amylose solution;
(2) preparation of starch nanometer granule: be slowly added dropwise ethanol in short amylose solution, drip while stirring, short straight chain Starch solution is 1:5 with the volume ratio of ethanol, continues stirring 1h after dripping ethanol, and then 3000rpm is centrifuged 20 minutes, to Adding deionized water in precipitation, will precipitate spin-up, 3000rpm is centrifuged 20 minutes, completes once to wash, is repeated two more times washing Process, obtains starch nanometer granule, and lyophilizing (vacuum 5Pa, temperature-60 DEG C, 60 hours time) obtains starch nanometer granule Powder;
(3) preparation of EC-SNPs composite nanometer particle: prepare mass volume ratio with the acetate buffer solution that pH7.5, concentration are 1M The starch nanometer granule suspension of 10%, add epicatechin, make the epicatechin final concentration of 1mM in suspension, 2mM, 6mM, 10mM, 15mM or 20mM, 30 DEG C of absorption 10min, 0.5h, 1h, 2h, 6h, 10h or 24h, adsorption process Middle holding, vibrates, and frequency is 400rpm, carries out ultrafiltration with the filter membrane that aperture is 400nm and be centrifuged, with step (2) after having adsorbed Method water washing and precipitating 2 times, lyophilizing (vacuum 5Pa, temperature-60 DEG C, 60 hours time) obtains that EC-SNPs is compound to be received Rice grain.
Table 2 embodiment 13-24 variable parameter is arranged
Embodiment 25-36
Prepare starch-epigallocatechin gallate (EGCG) (EGCG-SNPs) composite nanometer particle in accordance with the following steps:
(1) preparation of short amylose solution: first select waxy potato starch, prepares with the 1M phosphate buffer of pH6 Mass volume ratio is the gelatinized starch breast of 5%, is added thereto to the pullulanase of 500U/mL, gelatinized starch breast and pullulanase Volume ratio is 100:1,45 DEG C of enzymolysis 12 hours, obtains short amylose solution;
(2) preparation of starch nanometer granule: be slowly added dropwise ethanol in short amylose solution, drip while stirring, short straight chain Starch solution is 1:2 with the volume ratio of ethanol, continues stirring 3h after dripping ethanol, and then 6000rpm is centrifuged 10 minutes, to Adding deionized water in precipitation, will precipitate spin-up, 6000rpm is centrifuged 10 minutes, completes once to wash, is repeated two more times washing Process, obtains starch nanometer granule, and lyophilizing (vacuum 8Pa, temperature-80 DEG C, 48 hours time) obtains starch nanometer granule Powder;
(3) preparation of EGCG-SNPs composite nanometer particle: prepare quality volume with the acetate buffer solution that pH7, concentration are 1M Starch nanometer granule suspension than 5%, adds epigallocatechin gallate (EGCG), makes EGCG Ester final concentration of 1mM, 2mM, 6mM, 10mM, 15mM or 20mM in suspension, 20 DEG C absorption 10min, 0.5h, 1h, 2h, 6h, 10h or 24h, keep vibration in adsorption process, frequency is 800rpm, after having adsorbed with aperture is The filter membrane of 450nm carries out ultrafiltration and is centrifuged, with the method water washing and precipitating 2 times of step (2), lyophilizing (vacuum 8Pa, temperature-80 DEG C, 48 hours time) obtain EGCG-SNPs composite nanometer particle.
Table 3 embodiment 25-36 variable parameter is arranged
Embodiment 37-48
Prepare starch-procyanidin (PAC-SNPs) composite nanometer particle in accordance with the following steps:
(1) preparation of short amylose solution: the gelatinizing first selecting common corn starch, preparation mass volume ratio to be 15% is formed sediment Powder breast, is added thereto to the pullulanase of 200U/mL, and gelatinized starch breast is 100:7 with the volume ratio of pullulanase, enzymolysis 12 Hour, obtain short amylose solution;
(2) preparation of starch nanometer granule: be slowly added dropwise ethanol in short amylose solution, drip while stirring, short straight chain Starch solution is 1:2 with the volume ratio of ethanol, continues stirring 5h after dripping ethanol, and then 4000rpm is centrifuged 15 minutes, to Adding deionized water in precipitation, will precipitate spin-up, 4000rpm is centrifuged 15 minutes, completes once to wash, repeats and once wash Process, obtains starch nanometer granule, and lyophilizing (vacuum 5Pa, temperature-70 DEG C, 72 hours time) obtains starch nanometer granule Powder;
(3) preparation of PAC-SNPs composite nanometer particle: prepare quality volume with the phosphate buffer that pH7.0, concentration are 1M Than 5% starch nanometer granule suspension, add procyanidin, make the procyanidin final concentration of 1mM in suspension, 2mM, 6mM, 10mM, 15mM or 20mM, 12 DEG C of absorption 10min, 0.5h, 1h, 2h, 6h, 10h or 24h, adsorption process Middle holding, vibrates, and frequency is 400rpm, carries out ultrafiltration with the filter membrane that aperture is 200nm and be centrifuged, with step (2) after having adsorbed Method water washing and precipitating 3 times, lyophilizing (vacuum 5Pa, temperature-70 DEG C, 72 hours time) obtains that PAC-SNPs is compound to be received Rice grain.
Table 4 embodiment 37-48 variable parameter is arranged
The performance detection of the starch prepared by embodiment 1-48-polyphenol composite nanometer particle:
(1) efficiency of loading of composite nanometer particle measures:
Solution after having adsorbed is loaded efficiency test, by measuring the absorbance of centrifuged supernatant, calculates unadsorbed The content of polyphenol.Computing formula is: the polyphenol addition of (amount of polyphenol in the addition-supernatant of total polyphenol)/total.
The charging ratio for embodiment 1-48 composite nanometer particle of Fig. 1-5 display, it can be seen that starch loads the suction of polyphenol Attached efficiency increases with polyphenol addition and the increase of adsorption time, and final efficiency is procyanidin > epicatechin > EGCG > Catechin.And charging ratio also increases with the addition of polyphenol and increases, and final useful load is 2-20 times of nanoparticle mass.
(2) composite nanometer particle langmuir adsorption dynamics adsorption kinetics simulation:
According to embodiment 1-6, polyphenol initial concentration that 13-18,25-30,37-42 are different, simulate Langmuir equation, side Formula isSimulation curve as it is shown in figure 5, the parameter that obtains is as shown in table 5,
The parameter of table 5 langmuir adsorption dynamics adsorption kinetics simulation equation.
(3) size of composite nanometer particle and form
Fig. 6-9 is dynamic laser light scattering experimental figure, it is seen then that the size of composite nanometer particle is 100-400nm, and with polyphenol The increase of addition first increases and reduces afterwards;Particle diameter presents the trend being gradually increased with the prolongation of adsorption time.
Figure 10-13 is respectively starch-catechin, starch-epicatechin, starch-EGCG, the transmission electron microscope of starch-procyanidin Collection of illustrative plates, is found out by figure, and the character of different tea polyphenol nano granules is all in ganoid spheroidal, and the granule of different tea polyphenols is big Little difference, but all between 20-60nm.
(4) FTIR spectrum of composite nanometer particle
As shown in figures 14-17, respectively starch-catechin, starch-epicatechin, starch-EGCG, starch-procyanidin red External spectrum figure, the spectrogram of nano-particle and starch have notable difference with tea polyphenols is simply mixed, illustrate that starch is formed with tea polyphenols Complex rather than simply mix.
(5) composite nanometer particle sensitivity environment (ultraviolet, salt ion, high temperature) test:
1. take polyphenol dry powder and the composite nanometer particle dry powder of embodiment 2,14,26,38, divide with the 1M phosphate buffer of pH7 Not Pei Zhi the solution of mass volume ratio 10%, process 30min under ultraviolet light, the solution after processing be diluted to respectively 0.2ppm, The solution of 0.4ppm, 0.6ppm, 0.8ppm, 1.0ppm, is separately added into DPPH, and 30min is placed in dark place, surveys in 517nm and inhales Shading value;
2. take polyphenol dry powder and the composite nanometer particle dry powder of embodiment 2,14,26,38, divide with the 1M phosphate buffer of pH7 Not Pei Zhi the solution of mass volume ratio 10%, add 0.1M NaCl and process 10min, the solution after processing is diluted to respectively The solution of 0.2ppm, 0.4ppm, 0.6ppm, 0.8ppm, 1.0ppm, is separately added into DPPH, and 30min is placed in dark place, in 517nm Survey absorbance;
3. take polyphenol dry powder and the composite nanometer particle dry powder of embodiment 2,14,26,38, divide with the 1M phosphate buffer of pH7 Not Pei Zhi the solution of mass volume ratio 10%, process 10min at 80 DEG C, the solution after processing be diluted to respectively 0.2ppm, The solution of 0.4ppm, 0.6ppm, 0.8ppm, 1.0ppm, is separately added into DPPH, and 30min is placed in dark place, surveys in 517nm and inhales Shading value;
The composite nanometer particle dry powder of table 6 embodiment 2,14,26,38 Scavenging ability after different condition processes is 50% Time polyphenol requirement
As shown in table 6, the different opposing of polyphenol composite nanometer particle salt, ultraviolet are different with the ability of temperature, catechin and table no food Sub-catechin and gallate-starch nanometer granule can be effective against the destruction of ultraviolet and temperature;Epicatechin-starch nano Grain can resist the impact of salt, ultraviolet and temperature;And procyanidin-starch nanometer granule can resist the destruction of salt and temperature.
(6) stomach, the simulation of intestinal environment slow release:
Take polyphenol dry powder and the composite nanometer particle dry powder of embodiment 2,14,26,38, be dissolved in pH2 (simulation gastric environment) respectively With in the 1M hac buffer of pH7 (simulation intestinal environment), make the solution of mass volume ratio 10%, be placed in 3kDa's In bag filter, bag filter is placed in the acetate buffer solution of the identical pH of 50mL (2 or 7), in the magnetic stirring apparatus of 50rpm Stirring different time, with polyphenol as standard, measures different time with ultraviolet spectrophotometer and adds up the polyphenol content of release.Figure 18 It is respectively the slow release figure in simulated gastric fluid and intestinal juice environment, it is seen that starch-polyphenol composite nanometer particle has highly significant with Figure 19 Slow release effect, the release in identical simulated environment of the different polyphenol composite nanometer particles is essentially identical, and the release in intestinal juice is bright Aobvious slower than the release in gastric juice.

Claims (10)

1. the preparation technology of starch-polyphenol composite nanometer particle, it is characterised in that step is as follows:
(1) preparation of short amylose solution: first preparation mass volume ratio is the gelatinized starch breast of 1-15%, is added thereto to The pullulanase of 100-500U/mL, gelatinized starch breast is 100:2-7 with the volume ratio of pullulanase, 40-60 DEG C of enzymolysis 6-12 Hour, obtain short amylose solution;
(2) preparation of starch nanometer granule: be slowly added dropwise ethanol in short amylose solution, drip while stirring, short straight chain forms sediment Powder solution is 1:2-5 with the volume ratio of ethanol, continues stirring 1-5h after dripping ethanol, centrifugal, and water washing and precipitating obtains starch Nano-particle, lyophilizing obtains starch nanometer granule powder;
(3) preparation of starch-polyphenol composite nanometer particle: prepare the shallow lake of mass volume ratio 5%-10% with phosphoric acid or acetate buffer solution Powder nano-particle suspension, adds polyphenol, makes the polyphenol final concentration of 1-20mM in suspension, 12-30 DEG C of absorption 0.1-24h, keeps vibration in adsorption process, adsorbed rear ultrafiltration and be centrifuged, water washing and precipitating, and lyophilizing obtains starch-polyphenol and is combined Nano-particle.
The preparation technology of starch the most according to claim 1-polyphenol composite nanometer particle, it is characterised in that many in step (2) Phenol is in catechin, epicatechin, L-Epicatechin gallate, epigallocatechin gallate (EGCG) or procyanidin One or more.
The preparation technology of starch the most according to claim 1 and 2-polyphenol composite nanometer particle, it is characterised in that step (1) Starch used by middle preparation gelatinized starch breast is that waxy corn starch, waxy rice starch, waxy potato starch, waxiness are little Any one or a few in wheat starch or common corn starch, the preparation of gelatinized starch breast uses the 1M phosphoric acid of pH4-6 to delay Rush liquid.
The preparation technology of starch the most according to claim 1 and 2-polyphenol composite nanometer particle, it is characterised in that step (2), (3) in, the number of times of water washing and precipitating is 2-3 time, and the mode of washing is: adds deionized water in precipitation, will precipitate spin-up, 3000-6000rpm is centrifuged 10-20 minute, is precipitated.
The preparation technology of starch the most according to claim 1 and 2-polyphenol composite nanometer particle, it is characterised in that step (3) Middle buffer is pH6.5-7.5, concentration is 1M phosphoric acid or acetic acid.
The preparation technology of starch the most according to claim 1 and 2-polyphenol composite nanometer particle, it is characterised in that step (2), (3) in, lyophilizing technique is: vacuum 5-10Pa, temperature-80~-60 DEG C, 48-72 hour time.
The preparation technology of starch the most according to claim 1 and 2-polyphenol composite nanometer particle, it is characterised in that step (3) In absorption complete in shaking bath pot, frequency of oscillation is 400-800rpm.
The preparation technology of starch the most according to claim 1 and 2-polyphenol composite nanometer particle, it is characterised in that step (3) During middle ultrafiltration is centrifugal, filter sizes is 200-450nm.
The preparation technology of starch the most according to claim 1 and 2-polyphenol composite nanometer particle, it is characterised in that step (2), (3) rotating speed 3000-6000rpm centrifugal in, centrifugation time 10-20 minute.
10. starch-polyphenol the composite nanometer particle prepared according to the arbitrary described technique of claim 1-9, it is characterised in that wanted by right The arbitrary described technique of 1-9 is asked to be prepared from.
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CN106509899A (en) * 2016-11-15 2017-03-22 江南大学 Method for compounding and entrapping tea polyphenols through debranched starch and xanthan gum
CN107163300A (en) * 2017-05-17 2017-09-15 福建农林大学 A kind of preparation method of lotus seed starch tea polyphenol compound
CN109593138A (en) * 2018-12-27 2019-04-09 青岛农业大学 Short amylose-lysine nano particle preparation method
CN109792986A (en) * 2018-06-27 2019-05-24 贵州大学 A kind of short-chain amylose nano pesticide and preparation method thereof
CN110447818A (en) * 2019-08-29 2019-11-15 中国农业大学 A method of anthocyanin stability is improved using age of starch process
CN110680788A (en) * 2019-11-20 2020-01-14 茗汲(浙江)生物科技有限公司 Toothpaste containing tea extract and preparation process
CN113303473A (en) * 2021-06-10 2021-08-27 石河子大学 Preparation method of apple polyphenol-hydroxypropyl-beta-cyclodextrin inclusion compound
CN113729205A (en) * 2021-08-13 2021-12-03 河南工业大学 Preparation process of compound capable of synergistically regulating and controlling retrogradation of Chinese chestnut starch

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1676211A (en) * 2005-01-04 2005-10-05 华南理工大学 Method for preparing starch absorption carrier
CN104211819A (en) * 2014-09-09 2014-12-17 青岛农业大学 Preparation method and modification method of taro starch nanoparticles as well as application of taro starch nanoparticles
CN104338112A (en) * 2014-09-15 2015-02-11 青岛农业大学 Preparation method of glutathione nano sustained-release capsules
CN102964609B (en) * 2012-12-05 2015-05-20 青岛农业大学 Biological preparation method for natural safe starch nano particles
CN104710633A (en) * 2015-03-17 2015-06-17 江南大学 Method for utilizing B-type starch as carrier to encapsulate guest molecules, as well as product and application of method
CN105218836A (en) * 2015-07-31 2016-01-06 青岛农业大学 A kind of emulsifying agent assists biological enzyme to prepare the method for size tunable type starch nanometer granule

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1676211A (en) * 2005-01-04 2005-10-05 华南理工大学 Method for preparing starch absorption carrier
CN102964609B (en) * 2012-12-05 2015-05-20 青岛农业大学 Biological preparation method for natural safe starch nano particles
CN104211819A (en) * 2014-09-09 2014-12-17 青岛农业大学 Preparation method and modification method of taro starch nanoparticles as well as application of taro starch nanoparticles
CN104338112A (en) * 2014-09-15 2015-02-11 青岛农业大学 Preparation method of glutathione nano sustained-release capsules
CN104710633A (en) * 2015-03-17 2015-06-17 江南大学 Method for utilizing B-type starch as carrier to encapsulate guest molecules, as well as product and application of method
CN105218836A (en) * 2015-07-31 2016-01-06 青岛农业大学 A kind of emulsifying agent assists biological enzyme to prepare the method for size tunable type starch nanometer granule

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
MA X, JIAN R, CHANG P R, ET AL: "Fabrication and characterization of citric acid-modified starch nanoparticles_plasticized-starch composites", 《BIOMACROMOLECULES》 *
QINGJIE SUN,EA.AL: "Effect of retrogradation time on preparation and characterization of", 《CARBOHYDRATE POLYMERS》 *
吴聪: "纳米大米淀粉的制备及作为药物载体的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 *
王芳,等: "短时轻度糊化处理制备高吸附性淀粉的研究", 《中国科技论文在线》 *
骆慧敏,等: "多孔淀粉对茶多酚的吸附性能及其复合物抗氧化能力的研究", 《茶叶科学》 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106420668A (en) * 2016-11-01 2017-02-22 广东泰宝医疗科技股份有限公司 Starch base controlled-release carrier material and preparation method and application thereof
CN106420668B (en) * 2016-11-01 2019-08-30 广东泰宝医疗科技股份有限公司 A kind of starch base control slow releasing carrier material and the preparation method and application thereof
CN106509899A (en) * 2016-11-15 2017-03-22 江南大学 Method for compounding and entrapping tea polyphenols through debranched starch and xanthan gum
CN107163300A (en) * 2017-05-17 2017-09-15 福建农林大学 A kind of preparation method of lotus seed starch tea polyphenol compound
CN107163300B (en) * 2017-05-17 2019-05-21 福建农林大学 A kind of preparation method of lotus seed starch-tea polyphenol compound
CN109792986A (en) * 2018-06-27 2019-05-24 贵州大学 A kind of short-chain amylose nano pesticide and preparation method thereof
CN109593138A (en) * 2018-12-27 2019-04-09 青岛农业大学 Short amylose-lysine nano particle preparation method
CN109593138B (en) * 2018-12-27 2020-11-20 青岛农业大学 Preparation method of short amylose-lysine nanoparticles
CN110447818A (en) * 2019-08-29 2019-11-15 中国农业大学 A method of anthocyanin stability is improved using age of starch process
CN110680788A (en) * 2019-11-20 2020-01-14 茗汲(浙江)生物科技有限公司 Toothpaste containing tea extract and preparation process
CN113303473A (en) * 2021-06-10 2021-08-27 石河子大学 Preparation method of apple polyphenol-hydroxypropyl-beta-cyclodextrin inclusion compound
CN113729205A (en) * 2021-08-13 2021-12-03 河南工业大学 Preparation process of compound capable of synergistically regulating and controlling retrogradation of Chinese chestnut starch

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