CN109673920A - A kind of molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle and preparation method thereof - Google Patents

A kind of molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle and preparation method thereof Download PDF

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Publication number
CN109673920A
CN109673920A CN201811586724.3A CN201811586724A CN109673920A CN 109673920 A CN109673920 A CN 109673920A CN 201811586724 A CN201811586724 A CN 201811586724A CN 109673920 A CN109673920 A CN 109673920A
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natamycin
hydrophilic colloid
composite nanoparticle
molten albumen
soluble protein
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房升
赵枭健
陈杰
孟岳成
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Hangzhou Fute Famous Food Technology Co Ltd
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Hangzhou Fute Famous Food Technology Co Ltd
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3454Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
    • A23L3/3463Organic compounds; Microorganisms; Enzymes
    • A23L3/3544Organic compounds containing hetero rings
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/03Organic compounds
    • A23L29/045Organic compounds containing nitrogen as heteroatom
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • A23L29/206Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
    • A23L29/231Pectin; Derivatives thereof
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • A23L29/206Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
    • A23L29/256Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin from seaweeds, e.g. alginates, agar or carrageenan
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • A23L29/269Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of microbial origin, e.g. xanthan or dextran
    • A23L29/271Curdlan; beta-1-3 glucan; Polysaccharides produced by agrobacterium or alcaligenes
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23PSHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P10/00Shaping or working of foodstuffs characterised by the products
    • A23P10/30Encapsulation of particles, e.g. foodstuff additives
    • 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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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Dispersion Chemistry (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

The invention belongs to nanoparticle applied technical fields, and in particular to a kind of molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle and preparation method thereof.The present invention provides a kind of molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticles, the composite nanoparticle is using natamycin as antimycotic agent, alcohol soluble protein is carrier, hydrophilic colloid is stabilizer, the mass ratio of natamycin and alcohol soluble protein is 0.05~0.20:1, and the mass ratio of the hydrophilic colloid and alcohol soluble protein is 0.5~1.25:1.Natamycin of the present invention can be uniformly dispersed in water solution system, and the nanoparticle of formation can redissolve in aqueous solution, and stable dispersion, have good water dispersible and stronger suppression mycotic.

Description

A kind of molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle and its preparation Method
Technical field
The invention belongs to nanoparticle applied technical fields, and in particular to a kind of molten albumen-hydrophilic gel of natamycin -ol Bluk recombination nanoparticle and preparation method thereof.
Background technique
Today's society pays special attention to food-safety problem, and anti-corrosive fresh-keeping also becomes one of popular project of research. In this field, addition food preservative becomes important one of fresh-keeping means.The drawbacks of artificial preservative increasingly by To the attention of society, the food preservative research and development of natural function become necessity of current food antiseptic preservation field.It Right food preservative has become one of the Main way of food fresh keeping exploitation with its antibiotic property many advantages, such as strong, safe and non-toxic.
Natamycin (CAS registration number 7681-93-8) can be effectively inhibited and be killed as a kind of natural food preservative Dead mould, filamentous fungi, saccharomycete, have the characteristics such as efficient, nontoxic, wide spectrum.The alternative traditional chemical antibacterial agent of natamycin, It is widely used in the food such as dairy products, meat and its products, bakery product, fruit and its product and flavouring, existed in recent years Also there is research to apply on food packaging applications.Most countries in the world, natamycin as be approved for cheese and The antiseptic treating agent of certain meat products such as saveloy is utilized for many years.It is unreported anti-so far although being used for a long time The growth of property bacterial strain.
Natamycin has polyene macrolide structure, is a kind of 20 natural hexa-atomic polyene macrolides chemical combination Object.Due to hydrophobic feature in its structure, solubility is very small (under room temperature < 50mg/L) in water for natamycin.Actually answer Used time is unable to fully if natamycin suspension will lead to undissolved crystal grain in aqueous solution is deposited in solution bottom It is utilized, cost is caused to increase and remain excessive problem.Although natamycin, which is sprayed onto, to have been displayed on baked product has With it is antimycotic processing equally successfully as a result, but due to natamycin water solubility it is low, conventional method still has the shortcomings that many. These disadvantages are stirred continuously including needs, and the plug nozzle when applying natamycin solution or suspension.Therefore, it is necessary to grind The critical issue that shampoo solubility is higher, dispersed better natamycin product is its application.
Nano suspension refers to that particle is dispersed in the water containing stabilizer with Nano Particle (usually 200~500nm) Dosage form in solution, and solidification can be carried out by the aftertreatment technologies such as being freeze-dried, being spray-dried.Due in nano suspension Compound is in solid state, can be made into the insoluble chemical compound preparation of high dose, be usually used in embedding hydrophobic detection substance, Drug, nutriment, food additives etc..Existing a variety of materials are used to prepare nanoparticle, receiving including natural degradable Nanoparticle material, such as albumen, polysaccharide and lipid large biological molecule substance.
Summary of the invention
The present invention is exactly to be directed to above-mentioned natamycin water solubility, the application disadvantage of bad dispersibility, is proposed a kind of based on multiple Close the dispersion solution and preparation method thereof of nanoparticle.It can be mitigated using method and product of the invention and be mentioned above And lead to the problem that application is uneven, residual is high.The more evenly distribution of natamycin may be implemented, and small amount can be used Natamycin.Further, it is possible to use aqueous solution more less than conventional method dosage, which reduce the water increasings on product surface The problem that adding.
For achieving the above object, the present invention is achieved by the following scheme:
The present invention provides a kind of molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle, the composite Nanos For particle using natamycin as antimycotic agent, alcohol soluble protein is carrier, and hydrophilic colloid is stabilizer, natamycin and alcohol soluble protein Mass ratio be 0.05~0.20:1, the mass ratio of the hydrophilic colloid and alcohol soluble protein is 0.5~1.25:1.
The mass concentration of the natamycin in the solution is between 0.001%~0.1%.
Alcohol soluble protein of the present invention can be zeins and wheat gliadin, used hydrophily Colloid can be casein sodium, sodium alginate, carboxymethyl chitosan, gellan gum and pectin.
For composite nanoparticle particle diameter distribution of the present invention between 100~400nm, PDI is small between 0.05-0.25 In 0.3, current potential is between -10 and -40m V.
The present invention also provides the molten albumen of the natamycin -ol-hydrophilic colloid composite nanoparticle preparation sides Method, it the following steps are included:
(1) natamycin, alcohol soluble protein are dissolved in ethanol-water solution;
(2) to step, (1) hydrophilic colloid aqueous solution is added in middle mixed solution;
(3) by the mixed liquor rotary evaporation of step (2), it is centrifuged off insoluble matter, is freeze-dried later, powder is obtained For the molten albumen of the natamycin -ol-hydrophilic colloid composite nanoparticle.
It is further: the step (1) in ethanol-water solution the concentration of ethyl alcohol be 40%~90%.
It is further: the step (2) in the mass concentration ratio of hydrophilic gel liquid solution be 1%~2.5%.
The nano-complex particle composition are as follows: the molten albumen-hydrophilic colloid of natamycin -ol.In preparation method, this hair It is bright to use anti-solvent method, using the dissolubility difference of alcohol soluble protein and natamycin in ethyl alcohol and water, prepare natamycin -ol Molten protein nano particle stablizes system using hydrophilic colloid.The present invention is to nano particle diameter size, granulated Looks, charging property and biocidal property etc. are investigated, and are using developing new thinking of the Natamycin in food fresh keeping neighborhood.
Compared with prior art, advantages of the present invention and have the technical effect that the present invention using natamycin as bacteriostatic agent, alcohol is molten Albumen is carrier, and hydrophilic colloid is stabilizer, and the present invention is synthesized using anti-solvent method, and is made by drying means.It utilizes The dissolubility difference of alcohol soluble protein and natamycin in ethyl alcohol and water, prepares the molten protein nano particle of natamycin -ol, uses Hydrophilic colloid stablizes system.Natamycin can be uniformly dispersed in water solution system, the nanoparticle of formation It can redissolve in aqueous solution, and stable dispersion.The present invention is to nano particle diameter size, granule-morphology, charging property and suppression Bacterium property etc. is investigated, and is using developing new thinking of the natamycin in food fresh keeping neighborhood.
The present invention carries out nano particle characterization structure using instruments such as laser particle analyzer, ultraviolet spectrometer, scanning electron microscope Analysis, the results showed that, the composite nanometer particle has good embedding effect to natamycin, and has lesser partial size, It is evenly distributed in aqueous solution;Electron microscopic picture shows that composite nanoparticle is spherical in shape, and particle size distribution is uniform;Ultraviolet spectrogram Analyzer is analysis shows include natamycin in the nano-particle molecular;And the nanoparticle of preparation has good water dispersion Property and stronger suppression mycotic.
Detailed description of the invention
Figure of description
Fig. 1 natamycin nanometer system scanning electron microscope (SEM) photograph.
(1 indicates that natamycin is water-soluble to the Bactericidal test figure of Fig. 2 natamycin sterling and nano particle to aspergillus niger Liquid, 2 indicate that inclusion complex in solution, 3 indicate zein solution;Concentration has differences at two column of left and right only 2).
Blueberry preserved situation A-C under tri- kinds of systems of Fig. 3: storage 4 days, D-F: storage 8 days, G-I: storage 12 days.
Fig. 4 natamycin nanometer system is surface-treated to bread different number of days fresh-keeping effect: A control group, B natamycin are received Rice system.
Specific embodiment
Embodiment 1
The synthesis of natamycin-zeins-casein sodium nanoparticle
Zeins and natamycin are dissolved with 80% (v/v) ethanol water, wherein the matter of zeins Measuring concentration is 0.25%, and the mass concentration of natamycin is 0.05%.A certain amount of above-mentioned alcohol solution is instilled into mass concentration For 0.25% caseinic acid sodium water solution, the mass ratio that feeds intake of zeins and casein sodium is 1 in mixed system: 1.After magnetic force whisks a period of time, ethyl alcohol is steamed with Rotary Evaporators, supernatant liquor is taken after centrifugation, obtains containing natamycin Nanoscale solution decentralized system.
As a result as follows: to change different zeins concentration (0.1%~0.35%) to system partial size and current potential It influences as shown in Table 1.It can be seen that system partial size is between 100~400nm, surface potential is between -10~-40.The method can Successfully to prepare the alcohol soluble protein nano particle of the natamycin of inclusion.
Influence of the different zeins concentration of table 1 to system partial size and current potential
Embodiment 2
The partial size and encapsulation rate of natamycin nanometer system
The synthetic method of natamycin nanometer system is as described in Example 1.Freshly prepared natamycin nano particle is molten Liquid is placed in -80 DEG C of ultra low temperature freezers pre-freeze overnight, is then put into rapidly in freeze dryer and is freeze-dried freeze-drying, obtains freeze-dried powder Last shape sample.Sample is lyophilized by scanning electron microscopic observation such as Fig. 1, it is seen that natamycin nano particle of the invention Size is more uniform, and shape is spherical in shape, and intuitive diameter is in 250nm or so.
Natamycin nanoparticle powder after weighing 10mg freeze-drying, addition 5mL ethyl acetate, which washes away, is not wrapped in nanoparticle In free natamycin, then centrifugation take out supernatant.1 time repeatedly, the supernatant after washing, centrifugation is merged.Merge Supernatant afterwards blows acetic acid ethyl ester, then is redissolved to obtain natamycin ethanol solution with 10mL ethyl alcohol.Him is received using established The quality (the natamycin amount on surface) of trip natamycin is calculated in mycin ultra-violet analysis method.After equally taking 10mg to be lyophilized Natamycin nanoparticle powder, be dissolved in 10mL ethyl alcohol, measure natamycin content therein (natamycin total amount).Pass through Following formula calculates nanoparticle system to the encapsulation rate of natamycin:
Embedding rate (%)=(natamycin total amount-surface natamycin amount)/natamycin total amount
As a result as follows: nanoparticle system can reach 95% or so to the encapsulation rate of natamycin, show that nanometer system can be real Now the efficient encapsulating of natamycin is carried, is more advantageous to the water dispersible for improving natamycin.
Embodiment 3
The dissolution dispersity of natamycin nanometer system is tested
The natamycin nanoparticle powder of freeze-drying is redissolved again in the distilled water of same volume, after being vibrated with shaker It is stored at room temperature, observes the state of system, and the parameters with the natamycin nano particle for being not added with casein sodium preparation It is compared.
As a result as follows: the natamycin nano particle for being not added with casein sodium preparation and addition casein of rehydration is lyophilized Data are as shown in table 2 after the redissolution of sour sodium preparation display nanoparticle, the results showed that, the natamycin of the invention-molten egg of corn alcohol White-casein sodium nanoparticle has good freeze-drying rehydration, and the system for being added without casein sodium does not have redissolution Stability.
The redissolution dispersibility of the different natamycin nanometer systems of table 2
Embodiment 4
The bacteriostatic experiment of natamycin nanometer system
Using the nano particle in embodiment 2, certain density natamycin aqueous dispersion system is obtained after redissolution.Such as Shown in Fig. 2, (1) is the inhibition zone of natamycin sterling in culture dish, and lower-left (2) are the inhibition zone of nano particle, bottom right (3) For the inhibition zone of zeins.First row indicates that the concentration of inclusion compound in the lower left corner is different from secondary series, and first is classified as The nano-particle complex of 0.02 mg/mL, second is classified as the nano-particle complex of 0.04mg/mL.
As a result as follows: zeins (3) without fungistatic effect, natamycin sterling compared with nano-particle complex, Because nano-particle complex increases the dissolubility of natamycin, inhibition zone is bigger, illustrates that nano-particle complex can With significant solubilized natamycin, while there is no have an impact to the biocidal property of natamycin itself.
Embodiment 5
Natamycin-zeins-carboxymethyl chitosan nanoparticles synthesis
It weighs 5mg natamycin and 60mg zeins is dissolved in 70% ethanol solution of 20mL, magnetic agitation 1h Dissolve it sufficiently.Prepare the carboxymethyl chitosan reverse phase solution that mass concentration is 0.12%.Carboxymethyl chitosan reverse phase is molten Agent is added in positive solution, and middle natamycin concentration is 0.01% in final system, and zeins concentration is 0.12%, carboxylic The concentration of methyl chitosan is 0.12%.Ethyl alcohol is steamed with Rotary Evaporators, supernatant liquor is taken after centrifugation, obtains receiving that he is mould Element-zeins-carboxymethyl chitosan nanoscale solution decentralized system.
As a result as follows: to change different zeins concentration (0.1~0.35%), system partial size is in 100~400nm Between;Change different carboxymethyl chitosan concentration (0.05~0.20%), surface potential is between -45~-65.The method Natamycin-zeins-carboxymethyl chitosan nano particle of the natamycin of inclusion can successfully be prepared.
Obtained natamycin-zeins-carboxymethyl chitosan nanoscale solution decentralized system, can be according to Method obtains freeze-dried powder in embodiment 2.
Embodiment 6
Natamycin-zeins-carboxymethyl chitosan nanoparticles are applied in fruit freshness preserving
Using the natamycin aqueous dispersion system in embodiment 5.Three parts of blueberry fresh fruit equivalent are taken, he is mould with receiving respectively Plain aqueous solution and natamycin-zeins-carboxymethyl chitosan nano-complex particle liquid carry out immersion treatment to blueberry, Using deionized water as blank control.Different number of days is placed under climatic chamber illumination condition, observes blueberry corruption situation, and Measure blueberries composition transfer.
As a result as follows: after natamycin nano-complex particle immersion treatment, to have apparent preservation to blueberry.Figure 3-D finds out that control group blueberry mildew occurred at the 8th day, and multiple by natamycin aqueous solution and nanometer in 3-E and 3-F figure Closing particle liquid, treated that blueberry also keeps fresh state.3-H figure shows at the 12nd day, the processing of natamycin aqueous solution Blueberry also starts corruption occur, and the blueberry for passing through the processing of composite nanometer particle liquid not yet goes mouldy, and illustrates that natamycin is received Rice compound system has preferable fresh-keeping effect to blueberry.Natamycin dispersion has better fresh-keeping effect, a side to blueberry Natamycin can be embedded in shell structure by face zeins nano particle, effectively delay illumination to natamycin Degradation, and slow release effect can be played to natamycin;The presence of another aspect stabilizer carboxymethyl chitosan keeps corn alcohol molten Electrostatic repulsion enhancing between protein nano particle, to keep entire dispersion more stable, enhances blueberry in storage In fresh-keeping effect.Nano-particle complex can be with fresh blueberry fresh fruit, to prove its application in fruit freshness preserving.
Embodiment 7
Natamycin-zeins-casein sodium nanometer system is applied in baking and banking up with earth product surface anti-corrosion
Nano-particle complex can be used as surface anticorrosion processing and bake and bank up with earth product for Bread and Pastries, to prove it in food Application in fresh-keeping.Using the nano particle in embodiment 2, it is water-soluble that certain density natamycin nano-dispersed is obtained after redissolution Liquid system.It makes Toast by oneself, is divided into two groups of experiments, two groups are respectively as follows:
A group: blank control, distilled water;
B group: natamycin nano-dispersed aqueous solution;
Bread is handled using surface spray method, places under the conditions of constant temperature and humidity and is saved not on the same day in lighting box Number observes bread corruption situation.As a result as follows: Fig. 4 finds out that control group A bread apparent mildew occurred at the 5th day, and passes through Natamycin nanoparticle liquid processing after B group without going mouldy.Illustrate natamycin nano composite system to baking and banking up with earth product Bread has preferable fresh-keeping effect.Nano-particle complex can play positive effect to bread anti-corrosion, to prove that it is being dried Train the application in product.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited;Although referring to aforementioned reality Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features;And these are modified or replace It changes, the range and innovation of claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.

Claims (10)

1. a kind of molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle, it is characterised in that: the composite nano-granule For son using natamycin as fungistatic agent, alcohol soluble protein is carrier, and hydrophilic colloid is stabilizer, wherein natamycin and the molten egg of alcohol White mass ratio is 0.05~0.20:1, and the mass ratio of the hydrophilic colloid and alcohol soluble protein is 0.5~1.25:1.
2. the molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle according to claim 1, it is characterised in that: The composite nanoparticle particle diameter distribution is between 50~400nm, and current potential is between -10 and -70mV.
3. the molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle according to claim 2, it is characterised in that: The composite nanoparticle partial size is between 100~400nm, and surface potential is between -10~-40.
4. the molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle according to claim 1, alcohol soluble protein are Zeins or wheat gliadin, hydrophilic colloid be casein sodium, sodium alginate, carboxymethyl chitosan, knot it is cold Glue and pectin.
5. the molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle according to claim 4, alcohol soluble protein are Zeins, hydrophilic colloid are casein sodium.
6. the preparation method of the molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle described in claim 1, special Sign is: it the following steps are included:
(1) natamycin, alcohol soluble protein are dissolved in ethanol-water solution;
(2) hydrophilic gel liquid solution is added in mixed solution in step (1);
(3) by the mixed liquor rotary evaporation of step (2), it is centrifuged off insoluble matter, is freeze-dried later, obtain powder as institute State the molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle.
7. the preparation method of the molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle according to claim 6, It is characterized by: after composite nanoparticle dissolution in aqueous solution the mass concentration of natamycin 0.001%~0.1% Between.
8. the preparation method of the molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle according to claim 6, It is characterized by: alcohol soluble protein is zeins in the step (1), concentration is 0.01~0.35%.
9. the preparation method of the molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle according to claim 6, It is characterized by: the concentration of ethyl alcohol is 40%~90% in ethanol-water solution in the step (1).
10. the preparation method of the molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle according to claim 5, It is characterized by: the mass concentration ratio of hydrophilic gel liquid solution is 0.01%~0.35% in the step (2).
CN201811586724.3A 2018-12-25 2018-12-25 A kind of molten albumen of natamycin -ol-hydrophilic colloid composite nanoparticle and preparation method thereof Pending CN109673920A (en)

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CN111000112A (en) * 2020-01-02 2020-04-14 中国农业科学院农产品加工研究所 Natamycin composition and application thereof
CN112022834A (en) * 2020-07-28 2020-12-04 西北农林科技大学 Hyperin-loaded zein-pectin composite nano-particles and preparation method thereof
CN112245409A (en) * 2020-10-23 2021-01-22 安徽大学 Vegetable protein-ursodesoxycholic acid sustained-release nanoparticle composite microcapsule and preparation method thereof
CN112514980A (en) * 2020-11-16 2021-03-19 福建农林大学 Marine product preservative with gliadin nanoparticles loaded with antibacterial peptide and preparation method thereof
CN112691087A (en) * 2021-01-25 2021-04-23 潍坊医学院 Natamycin nanoparticles and preparation method thereof
CN113475514A (en) * 2021-08-03 2021-10-08 惠州市银农科技股份有限公司 Methylamino abamectin benzoate nano suspending agent and preparation method thereof
CN114532536A (en) * 2022-01-25 2022-05-27 吉林大学 Preparation method of resveratrol-loaded wheat gliadin/sodium alginate composite nanoparticles
CN114600953A (en) * 2022-01-24 2022-06-10 北京工商大学 Preservative, preparation method thereof, preservative film solution and application thereof

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