CN106750580A - A kind of new edibility antibacterial food packaging film and preparation method thereof - Google Patents

A kind of new edibility antibacterial food packaging film and preparation method thereof Download PDF

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CN106750580A
CN106750580A CN201710013317.2A CN201710013317A CN106750580A CN 106750580 A CN106750580 A CN 106750580A CN 201710013317 A CN201710013317 A CN 201710013317A CN 106750580 A CN106750580 A CN 106750580A
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gelatin
film
shitosan
solution
essential oil
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付才力
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Fuzhou University
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Fuzhou University
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/463—Edible packaging materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
    • C08J2305/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2389/00—Characterised by the use of proteins; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/14—Gas barrier composition
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
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Abstract

The present invention discloses a kind of new edibility antibacterial food packaging film and preparation method thereof.The edibility antibacterial food packaging film is prepared from by shitosan, gelatin and cinnamon essential oil；Its preparation process is simple, only need to respectively prepare chitosan solution, gelatin solution, is separately added into glycerol plasticizer mixing, adds natural antibacterial agent cinnamon essential oil, emulsification, and makes its fully dispersed, the step such as casting film.Gained food package film has good tensile strength（TS=42.17±1.84MPa）And ductility（EAB=62.34±2.66%）, the inhibition to the common putrefactive microorganisms Escherichia coli of food, staphylococcus aureus is significantly higher than the PE preservative films in market, suitable to pack various food, meets the demand in market.

Description

A kind of new edibility antibacterial food packaging film and preparation method thereof
Technical field
The invention belongs to food packaging applications, and in particular to a kind of new edibility antibacterial food packaging film and its preparation side Method.
Background technology
At present, the packaging material for food of in the market is with plastics chemical materials（Polyethylene, polyvinyl chloride）Based on, although tool There are durable, low cost and easy-formation, but the environmental problem that is triggered of its non-biodegradable has triggered the concern of people.People Be not limited only to packaging for packaging material for food requirement, whether the freshness of food can be kept to it, the rotten of food is reduced Corruption proposes new requirement.At present, the packaging material for food being made using sustainability biomaterial have it is nontoxic, without dirt Dye, it is degradable and renewable the advantages of, it has also become the focus of research.
Shitosan is chitin in the discarded shellfish shell of food industry by obtained from deacetylation Product.Shitosan wide material sources, are a kind of natural, nontoxic, efficient food preservatives, with various premium properties, while Also there is film forming, can be used for packaging material for food.Research shows that chitosan film of the molecular weight below 300,000 can be in 3 months It is degradable.Gelatin is the product that collagen is denatured under the conditions of soda acid, ultraviolet, high temperature etc., is had with collagen Homology, the property with collagen is close, and emulsifying agent, jelly, stabilizer, thickener etc. are commonly used in field of food.Shell Glycan film-strength is high, poor toughness, and gelatin film hygroscopicity is strong, and water preventing ability is poor, and the two combination can improve the mechanical performance of composite membrane, resistance Gas, hygroscopicity etc., between the two in the presence of stronger intermolecular force, with good compatibility；Therefore often coordinating is used for Prepare food package film.And shitosan has wide material sources with gelatin, the advantages of cheap.
The antibiotic property of the chitosan-gelatin composite membrane for obtaining at present is relatively low, is primarily due to the antibacterial anti-corrosive properties of shitosan Degree of acetylation, molecular weight and local environment by molecule are limited.Therefore, can be by various to being added in chitosan solution Material, such as albumen, oleic acid, natural antibacterial agent improve the antibiotic property of film.Cinnamon essential oil has good bacteriostasis, its master Want composition for cinnamic acid, a kind of flavour of food products additive has been recognized as at present, can be used as a kind of effective active antibacterial material It is added in composite membrane, improves the antibiotic property of composite membrane.It is more ripe to improving the Study on Mechanical Properties of chitosan film at present, but Cinnamon essential oil is little on the influence research of chitosan-gelatin composite membrane anti-microbial property.
CN201510108913.X provides a kind of simple method for preparing chitosan film, and the invention is by by shitosan Solution extrusion filtering, standing and defoaming, spin-coating, constant temperature and humidity drying prepare chitosan film.Preparation process is simple, but mechanicalness Can not be good, its tensile strength >=170MPa, elongation at break>3.6%, intensity is big, and poor ductility is unsuitable as packaging for foodstuff Material, and institute does not possess the harmless safety standard of food using solvent dissolving shitosan.CN201110291480.8 discloses one kind Natural macromolecular material gelatin is pressed one by the preparation method of gelatin/PHBV blend films, the invention with synthesis macromolecular material PHBV Fixed mass ratio mixing, casting film-forming.Blend film low cost prepared by the method, it is simple to operate, but its mechanical strength is not good, Relevant nature mainly with gelatin is relevant.CN201510449344.5 provides a kind of side for preparing gelatine-chitosan composite membrane Method, mixes by a certain percentage by by shitosan and gelatin, and adds the ductility of plasticizer P EG200 improvement composite membranes, adds TGase（TGase）Carry out crosslinking enhancing intermolecular force, casting film-forming.The water solubility of invention confirmation composite membrane, Swelling ratio, water vapor permeability reduction, mechanical performance is improved, but its anti-microbial property is not improved, and operation is excessively complicated, is taken It is long.
The content of the invention
For existing environment-friendly type food package film mechanical strength is not good or the problems such as poor anti-microbial property, the invention provides one Plant new edibility antibacterial food packaging film and preparation method thereof.Its raw materials of chitosan, gelatin, cinnamon essential oil belong to food Level, it is edible, meet the ingredient requirement of packaging material for food；Its antibacterial effect is significantly higher than the PE preservative films in market, raw material sources Extensively, low cost, simple to operate, satisfactory mechanical property, antibacterial effect is obvious；Printing opacity, ventilative etc. are functional, prevent with certain Ultraviolet function, is adapted to the various food of packaging, meets the demand in market.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of new edibility antibacterial food packaging film, its constituent is：Shitosan 1-2g, acetic acid solution 1-2mL, gelatin 1- 2g, glycerine 0.10-0.50%wt, 0.04-0.16g Tween 80,0.2-0.8%wt cinnamon essential oils.
Another object of the present invention is to, there is provided a kind of preparation method of above-mentioned new edibility antibacterial food packaging film, Comprise the following steps：
（1）The preparation of chitosan solution：By in above-mentioned shitosan addition deionized water, 3-5min is stirred, shitosan is uniformly divided After dissipating, acetic acid solution is added dropwise while stirring, is sufficiently stirred for, obtain 1%w/v chitosan solutions；
（2）The preparation of gelatin solution：After gelatin is expanded into 15-30min in cold water, under the conditions of 35 DEG C, magnetic agitation 2h-5h Dissolving, is made 1%w/v solution；
（3）Respectively to adding 0.10-0.50%wt glycerine as plasticizer in shitosan and gelatin solution, stirring mixes 30min；
（4）By shitosan/glycerine and gelatin/glycerite with 7:3-3:7 mass ratio mixing, adds Tween 80 emulsifying agent, after Continuous stirring mixing 30min is to homogeneous；
（5）Add cinnamon essential oil in mixed liquor, with homogeneous 3-5min under high speed dispersion emulsifying machine 13000rpm, it is fully divided It is dispersed in mixed solution, obtains composite membrane liquid；
（6）By composite membrane liquid after 10-90min is heated at 40-80 DEG C, bubble removing is removed with vacuum suction pump depletion gas 30min；
（7）After film liquid is cooled to room temperature, takes 40g-50g film liquids and be poured in the polystyrene culture dish of diameter 12cm, in 25 DEG C, The climatic chambers of RH 50%, dry 48h film forming.After taking off film, 25 DEG C ± 1 are placed in, save backup under the environment of RH 50% ± 2.
Wherein, the raw material shitosan, gelatin, cinnamon essential oil are food-grade raw material.
The advantage of the invention is that：
Chitosan film intensity is high, poor toughness, and gelatin film hygroscopicity is strong, and water preventing ability is poor, and the two combination can improve the machinery of composite membrane Performance, gas barrier property, hygroscopicity etc., but antibiotic property is weak.Prepared present invention improves tradition packaging material bad mechanical property lack Fall into, while greatly strengthen anti-bacterial refreshing effect.Advantage of the invention is that raw material sources are wide, low cost is simple to operate, made Standby food package film has good tensile strength（TS=42.17±1.84MPa）And ductility（EAB=62.34± 2.66%）, printing opacity（T>80%）, it is ventilative（WVP=0.256±0.018/(g•mm/m2•h•kPa)）Good, the thickness of property（D=45.43± 3.11μm）, with certain anti-ultraviolet function, to the common putrefactive microorganisms Escherichia coli of food, staphylococcus aureus Inhibition effect is significant is adapted to the various food of packaging higher than the PE preservative films in market, meets the demand in market.
It is with low cost and the raw material such as shitosan of the present invention, gelatin are simple and easy to get.
Figure of description
Fig. 1 Escherichia coli bacteriostatic experiments.From left to right it is followed successively by blank filter paper, embodiment 2, Chitosan/Gelatin Blend Films, shell Glycan film.
Fig. 2 staphylococcus aureus bacteriostatic experiments.From left to right it is followed successively by embodiment 2, Chitosan/Gelatin Blend Films, shell Glycan film, blank filter paper.
Specific embodiment
Embodiment 1.
A kind of new edibility antibacterial food packaging film, its constituent is：Shitosan 2g, gelatin 2g, 0.30%wt glycerine, 0.04g Tween 80s, cinnamon essential oil 0.2%wt.Its preparation method is：
（1）Weigh in 2g shitosans addition 250ml conical flasks, be subsequently adding 200ml deionized waters, stir 3min, make shitosan After dispersed, 2ml acetic acid solutions are added dropwise while stirring, are sufficiently stirred for, obtain chitosan solution.
（2）2g gelatin is weighed, after first expanding 15min in cold water, under the conditions of 35 DEG C, magnetic agitation 2h dissolvings are matched somebody with somebody Make the gelatin solution of 1% w/v.
（3）Then respectively to 0.30%wt glycerine in shitosan and gelatin solution, is added, stirring mixes 30min.
（4）By shitosan/glycerine and gelatin/glycerite in mass ratio 4:After 6 mixing, the emulsification of 0.04g Tween 80s is added Agent, continues to stir mixing 30min to homogeneous, to assist cinnamon essential oil dispersing and dissolving.
（5）The cinnamon essential oil of 0.2%wt is added, with homogeneous 5min under high speed dispersion emulsifying machine 13000rpm, is combined Film liquid.
（6）Composite membrane liquid is heated into 90min at a temperature of 40 DEG C, bubble removing is removed through vacuum air pump vacuum suction 30min.
（7）After film liquid is cooled to room temperature, takes 40g liquid and be poured over polystyrene（Diameter 12cm）It is permanent in constant temperature on culture dish Wet tank（25℃ RH 50%）Dry 48h film forming.After taking off film, it is placed in 25 DEG C of ± 1, RH 50% ± 2 and saves backup.
Embodiment 2.
A kind of new edibility antibacterial food packaging film, its constituent is：Shitosan 1g, gelatin 1g, 0.25%wt glycerine, 0.08g Tween 80s, cinnamon essential oil 0.4%wt.Its preparation method is：
（1）Weigh in 1g shitosans addition 250ml conical flasks, be subsequently adding 100ml deionized waters, stir 3min, make shitosan After dispersed, 1ml acetic acid solutions are added dropwise while stirring, are sufficiently stirred for, obtain chitosan solution.
（2）1g gelatin is weighed, after first expanding 15min in cold water, under the conditions of 35 DEG C, magnetic agitation 2h dissolvings are matched somebody with somebody The gelatin solution of system 1%.
（3）Then respectively to 0.25%wt glycerine in shitosan and gelatin solution, is added, stirring mixes 30min.
（4）By shitosan/glycerine and gelatin/glycerite in mass ratio 5:After 5 mixing, the emulsification of 0.08g Tween 80s is added Agent, continues to stir mixing 30min to homogeneous, to assist cinnamon essential oil dispersing and dissolving.
（5）The cinnamon essential oil of 0.4%wt is added, with homogeneous 5min under high speed dispersion emulsifying machine 13000rpm, is combined Film liquid.
（6）Composite membrane liquid is heated into 30min at a temperature of 60 DEG C, bubble removing is removed through vacuum air pump vacuum suction 30min.
（7）After film liquid is cooled to room temperature, takes 40g liquid and be poured over polystyrene（Diameter 12cm）It is permanent in constant temperature on culture dish Wet tank（25℃ RH 50%）Dry 48h film forming.After taking off film, it is placed in 25 DEG C of ± 1, RH 50% ± 2 and saves backup.
Embodiment 3.
A kind of new edibility antibacterial food packaging film, its constituent is：Shitosan 2g, gelatin 2g, 0.40%wt glycerine, 0.08g Tween 80s, cinnamon essential oil 0.4%wt.Its preparation method is：
（1）Weigh in 2g shitosans addition 250ml conical flasks, be subsequently adding 200ml deionized waters, stir 3min, make shitosan After dispersed, 2ml acetic acid solutions are added dropwise while stirring, are sufficiently stirred for, obtain chitosan solution.
（2）2g gelatin is weighed, after first expanding 15min in cold water, under the conditions of 35 DEG C, magnetic agitation 2h dissolvings are matched somebody with somebody The gelatin solution of system 1%.
（3）Then respectively to 0.40%wt glycerine in shitosan and gelatin solution, is added, stirring mixes 30min.
（4）By shitosan/glycerine and gelatin/glycerite in mass ratio 6:After 4 mixing, the emulsification of 0.08g Tween 80s is added Agent, continues to stir mixing 30min to homogeneous, to assist cinnamon essential oil dispersing and dissolving.
（5）The cinnamon essential oil of 0.4%wt is added, with homogeneous 5min under high speed dispersion emulsifying machine 13000rpm, is combined Film liquid.
（6）Composite membrane liquid is heated into 30min at a temperature of 50 DEG C, bubble removing is removed through vacuum air pump vacuum suction 30min.
（7）After film liquid is cooled to room temperature, takes 40g liquid and be poured over polystyrene（Diameter 12cm）It is permanent in constant temperature on culture dish Wet tank（25℃ RH 50%）Dry 48h film forming.After taking off film, it is placed in 25 DEG C of ± 1, RH 50% ± 2 and saves backup.
Embodiment 4
A kind of new edibility antibacterial food packaging film, its constituent is：Shitosan 2g, gelatin 2g, 0.30%wt glycerine, 0.12g Tween 80s, cinnamon essential oil 0.6%wt.Its preparation method is：
（1）Weigh in 2g shitosans addition 250ml conical flasks, be subsequently adding 200ml deionized waters, stir 3min, make shitosan After dispersed, 2ml acetic acid solutions are added dropwise while stirring, are sufficiently stirred for, obtain chitosan solution.
（2）2g gelatin is weighed, after first expanding 15min in cold water, under the conditions of 35 DEG C, magnetic agitation 2h dissolvings are matched somebody with somebody The gelatin solution of system 1%.
（3）Then respectively to 0.30%wt glycerine in shitosan and gelatin solution, is added, stirring mixes 30min.
（4）By shitosan/glycerine and gelatin/glycerite in mass ratio 7:After 3 mixing, the emulsification of 0.12g Tween 80s is added Agent, continues to stir mixing 30min to homogeneous, to assist cinnamon essential oil dispersing and dissolving.
（5）The cinnamon essential oil of 0.6%wt is added, with homogeneous 5min under high speed dispersion emulsifying machine 13000rpm, is combined Film liquid.
（6）Composite membrane liquid is heated into 30min at a temperature of 60 DEG C, bubble removing is removed through vacuum air pump vacuum suction 30min.
（7）After film liquid is cooled to room temperature, takes 40g liquid and be poured over polystyrene（Diameter 12cm）It is permanent in constant temperature on culture dish Wet tank（25℃ RH 50%）Dry 48h film forming.After taking off film, it is placed in 25 DEG C of ± 1, RH 50% ± 2 and saves backup.
Embodiment 5
A kind of new edibility antibacterial food packaging film, its constituent is：Shitosan 1g, gelatin 1g, 0.30%wt glycerine, 0.08g Tween 80s, cinnamon essential oil 0.4%wt.Its preparation method is：
（1）Weigh in 1g shitosans addition 250ml conical flasks, be subsequently adding 100ml deionized waters, stir 3min, make shitosan After dispersed, 1ml acetic acid solutions are added dropwise while stirring, are sufficiently stirred for, obtain chitosan solution.
（2）1g gelatin is weighed, after first expanding 15min in cold water, under the conditions of 35 DEG C, magnetic agitation 2h dissolvings are matched somebody with somebody The gelatin solution of system 1%.
（3）Then respectively to 0.30%wt glycerine in shitosan and gelatin solution, is added, stirring mixes 30min.
（4）By shitosan/glycerine and gelatin/glycerite in mass ratio 3:After 7 mixing, the emulsification of 0.08g Tween 80s is added Agent, continues to stir mixing 30min to homogeneous, to assist cinnamon essential oil dispersing and dissolving.
（5）The cinnamon essential oil of 0.4%wt is added, with homogeneous 5min under high speed dispersion emulsifying machine 13000rpm, is combined Film liquid.
（6）Composite membrane liquid is heated into 10min at a temperature of 80 DEG C, degasification is gone through vacuum air pump vacuum suction 30min Bubble.
（7）After film liquid is cooled to room temperature, takes 40g liquid and be poured over polystyrene（Diameter 12cm）It is permanent in constant temperature on culture dish Wet tank（25℃ RH 50%）Dry 48h film forming.After taking off film, it is placed in 25 DEG C of ± 1, RH 50% ± 2 and saves backup.
The edibility antibacterial chitosan-gelatin-cinnamon essential oil composite membrane of the preparation provided by the present invention, can be used for food neck The fresh-keeping application of the aspects such as domain fruits and vegetables, aquatic products, agricultural product.
2nd, chitosan-gelatin-cinnamon essential oil composite membrane correlated performance is determined
By embodiment 2 prepare chitosan-gelatin-cinnamon essential oil composite membrane according to following method, determine its mechanical performance, thoroughly Gas and translucency and to the relevant food spoilage organisms inhibition such as Escherichia coli, staphylococcus aureus.
1）The measure of mechanical performance.With reference to GB/T 1040.3-2006《The measure of plastic tensile performance》Deng method, adopt With the tensile strength of TA-XT2i instrumental test films（Tensile Strength, TS）And elongation at break （Elongation At Break, EBA）.Parallel determination three times.
Computing formula is as follows：
In formula, FmaxMaximum pull/the N born when being broken by film；L is the thickness/mm of film；W is the width/mm of film；L0For Initial length/the mm of film；L1It is length/mm when film is broken.
2）The measure of water vapo(u)r transmission
Close on the measuring cup equipped with distilled water, sealing is put into close drying device the composite membrane that will have been chosen（Relatively Humidity 0%）, the steam pressure difference inside and outside film is kept, and drier is put into climatic chamber（25℃、50%RH）In, every 1h is weighed once, nominal amount 10 times.Quality measurement loss amount changes with time, and drafting pattern, obtains R2≤0.99, parallel Determine three times, calculated as follows：
In formula, K is slope, and L is the thickness/mm of film, and A is the area m for determining film2, Δ p takes 3.168 kPa.
3）The measure of light transmittance
The uniform film of thickness is chosen, the rectangle of 0.8cm × 4cm sizes is cut into, is attached on the wall of 1cm cuvettes, with Air is blank, and light transmittance of the wavelength in 600nm, parallel determination three times are determined with ultraviolet specrophotometer.
4）The antibiotic property of composite membrane
Inhibition of the composite membrane to Escherichia coli is determined by filter paper inhibition zone method.0.1mL bacterium number amounts are drawn with liquid-transfering gun Concentration is 106The Escherichia coli of CFU/mL and staphylococcus aureus suspension inoculation are in nutrient agar, even spread.So The different film liquids of 7 μ L are drawn respectively afterwards in the filter paper after ultraviolet-sterilization（Diameter 6mm）On, culture plate is placed in 37 DEG C of incubators Culture 24h, is blank with the filter paper for adding sterilized water, determines antibacterial region, replication 3 times.
3. the correlated performance of chitosan-gelatin-cinnamon essential oil composite membrane
1）The related physical performance such as table 1 of the chitosan-gelatin-cinnamon essential oil composite membrane prepared by embodiment 2：
Note：WVP/(g•mm/m2H kPa) refer to moisture-vapor transmission.
2）The anti-microbial property of the chitosan-gelatin-cinnamon essential oil composite membrane prepared by embodiment 2 is as shown in Figure 1 and Figure 2：
3）The inhibition zone of the composite membrane prepared by embodiment 2 is determined, such as table 2 is summarized.
As shown in Table 1, chitosan-gelatin prepared in accordance with the present invention-cinnamon essential oil composite membrane has good mechanicalness Can, tensile strength is：42.17 ± 1.84MPa, elongation at break be 62.34 ± 2.66%, moisture-vapor transmission be 0.030 ± 0.018 g•mm/m2H kPa, light transmittance is up to 80%, with good light transmission and uv resistance energy.Compared to shitosan Film, shitosan/gelatin film, tri compound film of the invention improves its mechanical performance, make it have good tensile strength and Ductility, is more suitable for packaging material for food.
The method for preparing composite membrane provided from Fig. 1, Fig. 2 and table 2, the present invention, with certain antibacterial effect, The growth of Escherichia coli and staphylococcus aureus can be suppressed, PE preservative film of its bacteriostasis, preservation effect is significant higher than market.Phase Than simple chitosan film, shitosan/synthesized thin film, after addition cinnamon essential oil, its fungistatic effect is significantly improve, according to Prepared by the method is that composite membrane is a kind of new Composite food packaging.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with Modification, should all belong to covering scope of the invention.

Claims (3)

1. a kind of new edibility antibacterial food packaging film, it is characterised in that its constituent is：Shitosan 1-2g, acetic acid is molten Liquid 1-2mL, gelatin 1-2g, glycerine 0.10-0.50%wt, 0.04-0.16g Tween 80,0.2-0.8%wt cinnamon essential oils.
2. a kind of method for preparing new edibility antibacterial food packaging film described in claim 1, it is characterised in that including as follows Step：
（1）The preparation of chitosan solution：By in above-mentioned shitosan addition deionized water, 3-5min is stirred, shitosan is uniformly divided After dissipating, acetic acid solution is added dropwise while stirring, is sufficiently stirred for, obtain 1%w/v chitosan solutions；
（2）The preparation of gelatin solution：After gelatin is expanded into 15-30min in cold water, under the conditions of 35 DEG C, magnetic agitation 2h-5h Dissolving, is made 1%w/v solution；
（3）Respectively to adding 0.10-0.50%wt glycerine as plasticizer in shitosan and gelatin solution, stirring mixes 30min；
（4）By shitosan/glycerine and gelatin/glycerite with 7:3-3:7 mass ratio mixing, adds Tween 80 emulsifying agent, after Continuous stirring mixing 30min is to homogeneous；
（5）Add cinnamon essential oil in mixed liquor, with homogeneous 3-5min under high speed dispersion emulsifying machine 13000rpm, make its abundant It is dispersed in mixed solution, obtains composite membrane liquid；
（6）By composite membrane liquid after 10-90min is heated at 40-80 DEG C, bubble removing is removed with vacuum suction pump depletion gas 30min；
（7）After film liquid is cooled to room temperature, takes 40g-50g film liquids and be poured in the polystyrene culture dish of diameter 12cm, in 25 DEG C, The climatic chambers of RH 50%, dry 48h film forming；After taking off film, 25 DEG C ± 1 are placed in, save backup under the environment of RH 50% ± 2.
3. a kind of new edibility antibacterial food packaging film according to claim 1, it is characterised in that the former material material shell Glycan, gelatin, cinnamon essential oil are food-grade raw material.
CN201710013317.2A 2017-01-09 2017-01-09 A kind of new edibility antibacterial food packaging film and preparation method thereof Pending CN106750580A (en)

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Cited By (26)

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CN107603243A (en) * 2017-10-19 2018-01-19 蒋文明 A kind of antibacterial type albumen base edible food packaging film
CN107892819A (en) * 2017-11-29 2018-04-10 金华市铁骑士生物科技有限公司 The preparation method of edible packing membrane based on leucosin
CN108102389A (en) * 2017-12-23 2018-06-01 戴琪 A kind of preparation method of clean type sterilization gelatin film
CN108208710A (en) * 2017-12-06 2018-06-29 常州环际商贸有限公司 A kind of preparation method of peanut butter
CN108485282A (en) * 2018-05-03 2018-09-04 佛山市瑞生海特生物科技有限公司 A kind of preparation method of environment-friendly type meat product packaging material
CN108729299A (en) * 2018-07-04 2018-11-02 东莞职业技术学院 It is a kind of to be used to obstruct cellulose membrane of ink and preparation method thereof
CN109181017A (en) * 2018-10-18 2019-01-11 江西师范大学 Preparation method of fish gelatin antibacterial film
CN109679356A (en) * 2019-01-14 2019-04-26 新疆大学 It is a kind of using alpha-acid in hop as bacteriostatic agent-preparation method of gelatine-chitosan edibility bacteriostatic film
CN109679357A (en) * 2019-01-14 2019-04-26 新疆大学 It is a kind of with β-acid in hops for bacteriostatic agent-preparation method of gelatine-chitosan edibility bacteriostatic film
CN109735115A (en) * 2019-01-14 2019-05-10 新疆大学 A kind of preparation method of Hops Extract-gelatine-chitosan bacteriostatic film
CN110506785A (en) * 2019-09-04 2019-11-29 江苏第二师范学院（江苏省教育科学研究院） A kind of carragheen-chitosan blend composite membrane and its preparation method and application
CN110591169A (en) * 2019-09-30 2019-12-20 台州学院 Sugarcane fiber/chitosan composite film for food packaging and preparation method thereof
WO2020055277A1 (en) 2018-09-14 2020-03-19 Univerzitet U Beogradu Biopolymer emulsion for active packaging, uses and method of manufacturing
CN111269515A (en) * 2020-04-04 2020-06-12 北京农学院 Degradable film with antibacterial function and preparation method thereof
CN111423604A (en) * 2020-03-20 2020-07-17 江西师范大学 Preparation method of ultrasonic modified composite gelatin film
CN112321869A (en) * 2020-10-28 2021-02-05 东北农业大学 Albumen/gelatin-based edible bacteriostatic coating and preparation method thereof
EP3744769A3 (en) * 2019-05-31 2021-03-03 Jozef Stefan Institute Film and production method
CN112831077A (en) * 2021-02-08 2021-05-25 江南大学 Intelligent gas-phase antioxidant film containing rosemary temperature-sensitive liposome and preparation method thereof
CN113005807A (en) * 2021-03-22 2021-06-22 浙江景兴纸业股份有限公司 Production process of environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product
CN113185733A (en) * 2021-06-04 2021-07-30 重庆工商大学 Preparation method of guar gum base nano composite membrane with slow-release antibacterial function
CN114605714A (en) * 2022-03-28 2022-06-10 吉林大学 Edible wood frog collagen packaging film and preparation method thereof
CN114957751A (en) * 2022-06-02 2022-08-30 江苏大学 Preparation method of edible tannin crosslinked tensile composite coating
CN115251152A (en) * 2022-05-16 2022-11-01 中国热带农业科学院南亚热带作物研究所 Amphiphilic chitosan/modified gellan gum/plant essential oil composite membrane and preparation and application thereof
CN115339168A (en) * 2022-04-22 2022-11-15 浙江省农业科学院 High-ductility multilayer edible antibacterial packaging film and preparation method thereof
CN115947961A (en) * 2022-11-17 2023-04-11 华南农业大学 Antibacterial composite preservative film and preparation method thereof
CN117736477A (en) * 2023-12-18 2024-03-22 锦州医科大学 Sandwich type multi-layer antibacterial composite film added with cinnamaldehyde and preparation method thereof

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Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107603243A (en) * 2017-10-19 2018-01-19 蒋文明 A kind of antibacterial type albumen base edible food packaging film
CN107892819A (en) * 2017-11-29 2018-04-10 金华市铁骑士生物科技有限公司 The preparation method of edible packing membrane based on leucosin
CN108208710A (en) * 2017-12-06 2018-06-29 常州环际商贸有限公司 A kind of preparation method of peanut butter
CN108102389A (en) * 2017-12-23 2018-06-01 戴琪 A kind of preparation method of clean type sterilization gelatin film
CN108485282A (en) * 2018-05-03 2018-09-04 佛山市瑞生海特生物科技有限公司 A kind of preparation method of environment-friendly type meat product packaging material
CN108729299B (en) * 2018-07-04 2020-10-23 东莞职业技术学院 Cellulose membrane for blocking printing ink and preparation method thereof
CN108729299A (en) * 2018-07-04 2018-11-02 东莞职业技术学院 It is a kind of to be used to obstruct cellulose membrane of ink and preparation method thereof
WO2020055277A1 (en) 2018-09-14 2020-03-19 Univerzitet U Beogradu Biopolymer emulsion for active packaging, uses and method of manufacturing
CN109181017B (en) * 2018-10-18 2021-03-16 江西师范大学 Preparation method of fish gelatin antibacterial film
CN109181017A (en) * 2018-10-18 2019-01-11 江西师范大学 Preparation method of fish gelatin antibacterial film
CN109735115A (en) * 2019-01-14 2019-05-10 新疆大学 A kind of preparation method of Hops Extract-gelatine-chitosan bacteriostatic film
CN109735115B (en) * 2019-01-14 2021-10-08 新疆大学 Preparation method of hop extract-gelatin-chitosan antibacterial film
CN109679357A (en) * 2019-01-14 2019-04-26 新疆大学 It is a kind of with β-acid in hops for bacteriostatic agent-preparation method of gelatine-chitosan edibility bacteriostatic film
CN109679356A (en) * 2019-01-14 2019-04-26 新疆大学 It is a kind of using alpha-acid in hop as bacteriostatic agent-preparation method of gelatine-chitosan edibility bacteriostatic film
EP3744769A3 (en) * 2019-05-31 2021-03-03 Jozef Stefan Institute Film and production method
CN110506785A (en) * 2019-09-04 2019-11-29 江苏第二师范学院（江苏省教育科学研究院） A kind of carragheen-chitosan blend composite membrane and its preparation method and application
CN110591169A (en) * 2019-09-30 2019-12-20 台州学院 Sugarcane fiber/chitosan composite film for food packaging and preparation method thereof
CN111423604A (en) * 2020-03-20 2020-07-17 江西师范大学 Preparation method of ultrasonic modified composite gelatin film
CN111423604B (en) * 2020-03-20 2022-05-20 江西师范大学 Preparation method of ultrasonic modified composite gelatin film
CN111269515A (en) * 2020-04-04 2020-06-12 北京农学院 Degradable film with antibacterial function and preparation method thereof
CN112321869A (en) * 2020-10-28 2021-02-05 东北农业大学 Albumen/gelatin-based edible bacteriostatic coating and preparation method thereof
CN112831077A (en) * 2021-02-08 2021-05-25 江南大学 Intelligent gas-phase antioxidant film containing rosemary temperature-sensitive liposome and preparation method thereof
CN113005807A (en) * 2021-03-22 2021-06-22 浙江景兴纸业股份有限公司 Production process of environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product
CN113185733A (en) * 2021-06-04 2021-07-30 重庆工商大学 Preparation method of guar gum base nano composite membrane with slow-release antibacterial function
CN113185733B (en) * 2021-06-04 2022-08-09 重庆工商大学 Preparation method of guar gum base nano composite membrane with slow-release antibacterial function
CN114605714A (en) * 2022-03-28 2022-06-10 吉林大学 Edible wood frog collagen packaging film and preparation method thereof
CN115339168A (en) * 2022-04-22 2022-11-15 浙江省农业科学院 High-ductility multilayer edible antibacterial packaging film and preparation method thereof
CN115339168B (en) * 2022-04-22 2023-06-06 浙江省农业科学院 High-ductility multilayer edible antibacterial packaging film and preparation method thereof
CN115251152A (en) * 2022-05-16 2022-11-01 中国热带农业科学院南亚热带作物研究所 Amphiphilic chitosan/modified gellan gum/plant essential oil composite membrane and preparation and application thereof
CN114957751A (en) * 2022-06-02 2022-08-30 江苏大学 Preparation method of edible tannin crosslinked tensile composite coating
CN115947961A (en) * 2022-11-17 2023-04-11 华南农业大学 Antibacterial composite preservative film and preparation method thereof
CN117736477A (en) * 2023-12-18 2024-03-22 锦州医科大学 Sandwich type multi-layer antibacterial composite film added with cinnamaldehyde and preparation method thereof

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