CN105885113A - Double-layer edible film and preparation method and application thereof - Google Patents
Double-layer edible film and preparation method and application thereof Download PDFInfo
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- CN105885113A CN105885113A CN201610428889.2A CN201610428889A CN105885113A CN 105885113 A CN105885113 A CN 105885113A CN 201610428889 A CN201610428889 A CN 201610428889A CN 105885113 A CN105885113 A CN 105885113A
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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
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/02—Starch; Degradation products thereof, e.g. dextrin
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- 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
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- 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
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- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- 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
- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2303/02—Starch; Degradation products thereof, e.g. dextrin
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- 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
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
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- 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
- C08J2489/00—Characterised by the use of proteins; Derivatives thereof
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- 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
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
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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
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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Abstract
The invention provides a double-layer edible film and a preparation method and application thereof. The double-layer edible film can be used as a food packaging bag. No harmful chemical is added into the double-layer edible film, and no harm is caused to the human body. In addition, the experimental result shows that the obtained double-layer edible film has excellent solubility, mechanical performance, moisture permeability and oxygen permeation performance. The tensile strength of the double-layer edible film is 14.4 MPa to the maximum extent, the elongation at break is 55.4% to the maximum degree, the moisture permeation coefficient is 0.61*10<-12> (kg.m)/(m<2>.s.Pa) optimally, the oxygen permeation coefficient is 0.77*10<-18> m<3>/(m<2>.s.Pa) optimally, and the shortest dissolution time at the temperature of 100 DEG C is 155 s. The sealing strength of the obtained food packaging bag can reach 340 N/m to the maximum extent.
Description
Technical field
The present invention relates to packaging material for food technical field, particularly to a kind of double-deck edible film and
Preparation method and application.
Background technology
Along with the quickening of people's rhythm of life, instant food industry entry rapid growth period, people
Daily life in occupy very important position.But, instant food is at the life band to people
Greatly many environmental problems have been also resulted in easily simultaneously.
Commercially available instant noodles, convenient rice noodle, facilitate stewed noodles and facilitate the instant food such as pepper and chili soup to be nearly all furnished with
Flavouring agent bag, and the instant food such as bottom material of chafing dish and hotpot condiment sauce a kind of flavor pack.At present,
Flavor pack on market mainly uses bidirectional stretching polypropylene film (BOPP), aluminized complex film (CPPAL)
Or the material such as chlorinated polyethylene (CPE).Although packaging material kind is more, but typically all it be unable to do without plastics
Category.There is following drawback in plastics package: the most degradable, pollutes environment；Inconvenience Kaifeng: significant proportion
Plastics package is difficult to Kaifeng, or because undue force is easily caused the interior flavoring agent leakage of material bag, the most unhygienic, also
Impact dining mood；Affect food safety: repeatedly tear flavor pack and have microorganism infection in various degree,
Plastic packaging bag puts together with exposed food, easily produces secondary pollution.
Edible material is a kind of novel environmental protection for substituting traditional plastic material risen in recent years
Material, the research report about edible material emerges in an endless stream both at home and abroad.But, edible in prior art
Property material is the most all added with stearic acid, palmitic acid, glycerol, 120,000 base sodium sulfate, petroleum ether and phosphorus
The chemical substances such as acid trisodium, and the interpolation of these chemical substances can destroy the safety of edible material, right
Human body works the mischief.
Summary of the invention
It is an object of the invention to provide a kind of double-deck edible film and its preparation method and application, this
Any harmful chemicals thing is not provided in the double-deck edible film of bright offer, human body is not had any damage
Evil.
In order to realize foregoing invention purpose, the present invention provides techniques below scheme:
The invention provides a kind of double-deck edible film, including stratum granulosum be arranged on described stratum granulosum table
The zein layer in face；
Described stratum granulosum includes the component of following parts by weight:
Starch 30～120 parts；
Plants essential oil 2～5 parts；
It is in terms of 30～120 parts by the parts by weight of starch in described stratum granulosum, described zein layer bag
Include the zein of 10～20 parts.
Preferably, described stratum granulosum includes the component of following parts by weight:
Starch 50～100 parts；
Plants essential oil 3～4 parts；
It is in terms of 50～100 parts by the parts by weight of starch in described stratum granulosum, described zein layer bag
Include 13～18 parts of zein.
Preferably, one during described starch is wheaten starch, potato starch and corn starch, two kinds
Or three kinds.
One during preferably, described plants essential oil is Fructus Citri Limoniae quintessence oil, Flos Rosae Rugosae quintessence oil and thyme oil,
Two or three.
Preferably, the thickness of described stratum granulosum is 0.01～0.5mm；
The thickness of described double-deck edible film is 0.011～0.8mm.
Preferably, described zein layer is arranged on the surface of described stratum granulosum side.
The invention provides the preparation method of described double-deck edible film, comprise the steps:
By starch, plants essential oil and water mixture carry out for the first time film forming, obtain starch film；
On a surface of described starch film, zein is carried out second time with the mixed liquor of ethanol become
Film, obtains double-deck edible film；
The thickness of described stratum granulosum is 0.01～0.5mm；
The thickness of described double-deck edible film is 0.011～0.8mm.
Present invention also offers the application as food pack of the described double-deck edible film.
Preferably, described food pack is for convenience of the condiment packaging bag of food.
Preferably, described food pack is using stratum granulosum as outer surface.
The invention provides a kind of double-deck edible film and its preparation method and application.The present invention provides
Double-deck edible film includes stratum granulosum and is arranged on the zein layer on described stratum granulosum surface；Institute
State stratum granulosum and include the component of following parts by weight: starch 30～120 parts；Plants essential oil 2～5 parts；With institute
Stating the parts by weight of starch in stratum granulosum is 30～120 parts of meters, and described zein layer includes 10～20
The zein of part.Heretofore described double-deck edible film can be as food pack.This Shen
Any harmful chemicals thing is not provided in the double-deck edible film that please provide, human body is not had any damage
Evil.Additionally, test result indicate that, the double-deck edible film that the present invention obtains have excellence dissolubility,
Mechanical property, water vapour permeability and oxygen permeability.Wherein, the hot strength of described double-deck edible film is
A height of 14.4MPa, elongation at break is up to 55.4%, and moisture permeable coefficient optimum is 0.61 × 10-12
(kg·m)/(m2S Pa), oxygen permeability coefficient optimum is 0.77 × 10-18m3/(m2S Pa), the fastest molten at 100 DEG C
The solution time is 155s.The sealing strength of the food pack that the present invention obtains can enough reach 340N/m.
Detailed description of the invention
The invention provides a kind of double-deck edible film, including stratum granulosum be arranged on described stratum granulosum table
The zein layer in face；
Described stratum granulosum includes the component of following parts by weight:
Starch 30～120 parts；
Plants essential oil 2～5 parts；
It is in terms of 30～120 parts by the parts by weight of starch in described stratum granulosum, described zein layer bag
Include the zein of 10～20 parts.
In the present invention, the stratum granulosum in described double-deck edible film comprises the starch of 30～120 parts, excellent
Elect 50～100 parts as, more preferably 60～80 parts.In the present invention, described starch be preferably wheaten starch,
One in potato starch and corn starch, two or three.
In the present invention, the stratum granulosum in described double-deck edible film comprises 2～5 parts of plants essential oils, excellent
Elect 3～4 parts as.In the present invention, the addition of described plants essential oil can be specially 2 parts, 3 parts, 4 parts
Or 5 parts.In the present invention, described plants essential oil is preferably Fructus Citri Limoniae quintessence oil, Flos Rosae Rugosae quintessence oil and Herba thymi vulgaris essence
One in oil, two or three.
In the present invention, the thickness of described stratum granulosum is preferably 0.01～0.5mm, more preferably
0.05～0.4mm, most preferably 0.1～0.3mm.
In the present invention, it is in terms of 30～120 parts by the parts by weight of starch in described stratum granulosum, described Semen Maydis
Alcohol soluble protein layer includes the zein of 10～20 parts, preferably 13～18 parts, more preferably 15～16
Part.
In the present invention, described zein layer is arranged on the surface of described stratum granulosum side.
In the present invention, the thickness of described double-deck edible film is preferably 0.011～0.8mm, more preferably
0.051～0.5, most preferably 0.11～0.35.
The source of described starch, plants essential oil and zein is not particularly limited by the present invention, tool
Body can be the commercially available prod of described starch, plants essential oil and zein.
Present invention also offers the preparation method of a kind of above-mentioned double-deck edible film, comprise the steps:
The mixture including starch, plants essential oil and water is carried out film forming for the first time, obtains starch film；
To include that zein carries out second time with the mixed liquor of ethanol on the surface of described starch film and becomes
Film, obtains double-deck edible film；
The thickness of described stratum granulosum is 0.01～0.5mm；
The thickness of described double-deck edible film is 0.011～0.8mm.
The mixture including starch, plants essential oil and water is carried out film forming for the first time by the present invention, obtains starch
Film.In the present invention, the mass ratio of described starch and water is preferably (30～120): (100～250), more preferably
For (50～100): (120～200), most preferably (60～80): (150～180).The present invention is the most special to described water
Requirement, concrete can be deionized water, pure water, distilled water or drinking water.
The present invention does not has particular/special requirement to the order by merging of described starch, plants essential oil and water, and three is permissible
Mix in any order.In the present invention, the mixture of described starch, plants essential oil and water is excellent
Mix under conditions of being selected in stirring.In the present invention, described stirring can specifically be carried out in blender.?
In the present invention, the frequency of described stirring is preferably 10～20Hz, more preferably 12～18Hz, most preferably
14～16Hz；The time of described stirring is preferably 8～13 minutes, concrete can be 8 minutes, 9 minutes,
10 minutes, 11 minutes, 12 minutes or 13 minutes.
The present invention, preferably after described mixing, carries out pelletize to mixture, carries out becoming for the first time the most again
Film.In the present invention, described pelletize can specifically be carried out in comminutor.In the present invention, described pelletize
Temperature be preferably 120～130 DEG C, more preferably 122～128 DEG C, most preferably 124～126 DEG C.At this
In invention, the granularity of described pelletize is preferably 2～50mm, more preferably 5～40mm, most preferably
10～30mm.
The present invention does not has particular/special requirement to the detailed description of the invention of described first time film forming, uses this area skill
Thin film-forming method known to art personnel is carried out.In the present invention, described first time film forming preferably employs
Extrusion curtain coating mode is carried out.In the present invention, the temperature of described first time film forming is preferably 120～130 DEG C,
More preferably 122～128 DEG C, most preferably 124～126 DEG C.
The present invention will include that the mixed liquor of zein and ethanol carries out on the surface of described starch film
Two-step film forming, obtains double-deck edible film.In the present invention, described zein and ethanol
Mass ratio is preferably (10～20): (150～300), more preferably (12～18): (180～280), most preferably
(14～16): (200～250).In the present invention, the volumetric concentration of described ethanol is preferably 94～98%, specifically
Can be 94%, 95%, 96%, 97% or 98%.The present invention is the most special to the source of described ethanol
Limiting, concrete can be the commercially available prod of described ethanol.
The present invention does not has particular/special requirement to the hybrid mode of described zein and ethanol, preferably by jade
Rice prolamin is dissolved in ethanol.
The present invention does not has particular/special requirement to the detailed description of the invention of described second time film forming, uses this area skill
Thin film-forming method known to art personnel is carried out.In the present invention, described second time film forming preferably employs
Curtain coating mode or the mode of smearing are carried out.
For the second time after film forming, the bilayer film obtained preferably is dried by the present invention, obtains double-deck edible
Property thin film.In the present invention, described being dried is preferably drying at room temperature.
Present invention also offers a kind of above-mentioned double-deck edible film or above-mentioned preparation method prepares
Double-deck edible film is as the application of food pack.
In the present invention, described double-deck edible film uses as food pack, concrete, described
Food pack is preferably the condiment packaging bag of instant food.In the present invention, described instant food
Condiment packaging bag can be the packaging bag of the food dressing of existing any kind on market, concrete
Such as instant noodles, convenient rice noodle, facilitate stewed noodles and facilitate the flavouring agent bag of the instant food such as pepper and chili soup, or
The packaging bag of the products such as bottom material of chafing dish, hotpot condiment sauce, broad bean paste, fruit jam and sweet soybean paste.In the present invention,
Described food pack is preferably using stratum granulosum as outer surface.
In the present invention, described food pack can have any shape, according to product demand or market
The double-deck edible film that the application is provided by demand carries out cutting.The present invention is to described packaging for foodstuff
The manufacture method of bag does not has particular/special requirement, according to the system of food pack well-known to those skilled in the art
Preparation Method is prepared.In the present invention, described food pack preferably employs the side of compacting sealing
Method is prepared.In the present invention, the temperature of described compacting sealing is 120～130 DEG C, more preferably
122～128 DEG C, most preferably 124～126 DEG C.The present invention does not has special wanting to the time of described compacting sealing
Ask, it is possible to by described food pack good seal.
The invention provides a kind of double-deck edible film and its preparation method and application.The present invention provides
Double-deck edible film includes stratum granulosum and is arranged on the zein layer on described stratum granulosum surface；Institute
State stratum granulosum and include the component of following parts by weight: starch 30～120 parts；Plants essential oil 2～5 parts；With institute
Stating the parts by weight of starch in stratum granulosum is 30～120 parts of meters, and described zein layer includes 10～20
The zein of part.The double-deck edible film that the application provides does not adds any harmful
Learn thing, human body is not had any infringement.Additionally, test result indicate that, the bilayer that the present invention obtains is edible
Property thin film have excellence dissolubility, mechanical property, water vapour permeability and oxygen permeability.Wherein, described double
The hot strength of layer edible film is up to 14.4MPa, and elongation at break is up to 55.4%, moisture-inhibiting system
Number optimum is 0.61 × 10-12(kg·m)/(m2S Pa), oxygen permeability coefficient optimum is 0.77 × 10-18m3
/(m2S Pa), dissolution time the fastest at 100 DEG C is 155s.The sealing of the food pack that the present invention obtains
Intensity can enough reach 340N/m.
Enter below in conjunction with double-deck edible film that the present invention is provided by embodiment and its preparation method and application
Row detailed description, but they can not be interpreted as limiting the scope of the present invention.
Embodiment 1
The preparation of starch film: first by 30 portions of wheaten starches, 70 parts of corn starchs, 2 parts of Fructus Citri Limoniae quintessence oil,
150 parts of water join in blender, stir 10min, led to by uniform mixed material under 15Hz speed
Cross comminutor extruder grain at 120 DEG C.Starch grain extrusion is prepared thickness and is by recycling extrusion casting apparatus
The monolayer wheat and corn starch film of 0.1mm.
The preparation of double-deck edible film: 10 parts of zein are dissolved in 150 parts of ethanol and prepare jade
Rice prolamin film liquid, by the surface of maize alcohol-soluble protein film liquid uniform application to starch film side, room temperature
Dried prepared double-deck wheat and corn starch-zein bilayer edible film, thickness is
0.115mm。
The mechanical property of the double-deck edible film that present invention test obtains and permeability, result shows,
Its tensile strength is 13.3MPa, and elongation at break is 48.7%, moisture permeable coefficient 0.61 × 10-12(kg m)/(m2
S Pa), oxygen permeability coefficient is 0.81 × 10-18m3/(m2s Pa)。
Double-deck edible film obtained above is prepared food pack by the present invention: with zein
Film is inner layer film, carries out compacting sealing, make packaging bag, as the tune of instant food under the conditions of 120 DEG C
Taste substance packaging bag.
The sealing strength of the condiment packaging bag that present invention test obtains and solubility property, result shows, its
Sealing strength is 330N/m.In 100 DEG C of hot water, about 155s can be completely dissolved.
Embodiment 2
The preparation of starch film: first by 40 parts of potato starch, 60 parts of wheaten starches, 2.5 parts of rhodamine toners
Oil, 170 parts of water join in blender, stir 15min, by uniform mixture under 16Hz speed
Material is by comminutor extruder grain at 125 DEG C.Starch grain extrusion is prepared thickness by recycling extrusion casting apparatus
Degree is the monolayer Rhizoma Solani tuber osi wheaten starch film of 0.12mm.
The preparation of double-deck edible film: 15 parts of zein are dissolved in 180 parts of ethanol and prepare jade
Rice prolamin film liquid, by the surface of maize alcohol-soluble protein film liquid uniform application to starch film side, room temperature
Dried prepared double-deck Rhizoma Solani tuber osi wheaten starch-zein bilayer edible film, thickness is
0.13mm。
The mechanical property of the double-deck edible film that present invention test obtains and permeability, result shows,
Its tensile strength is 12.8MPa, and elongation at break is 55.4%, moisture permeable coefficient 0.71 × 10-12(kg m)/(m2
S Pa), oxygen permeability coefficient is 0.77 × 10-18m3/(m2s Pa)。
Double-deck edible film obtained above is prepared food pack by the present invention: with zein
Film is inner layer film, carries out compacting sealing, make packaging bag, as the tune of instant food under the conditions of 130 DEG C
Taste substance packaging bag.
The sealing strength of the condiment packaging bag that present invention test obtains and solubility property, result shows, its
Sealing strength is 335N/m.In 100 DEG C of hot water, 180s can be completely dissolved.In 100 DEG C of hot water,
About 160s can be completely dissolved.
Embodiment 3
The preparation of starch film: first 80 parts of potato starch, 2 parts of thyme oils, 160 parts of water are added
Enter in blender, under 15Hz speed, stir 15min, uniform mixed material is existed by comminutor
Extruder grain at 130 DEG C.It is 0.11mm's that starch grain extrusion is prepared thickness by recycling extrusion casting apparatus
Monolayer potato starch film.
The preparation of double-deck edible film: 20 parts of zein are dissolved in 200 parts of ethanol and prepare jade
Rice prolamin film liquid, by the surface of maize alcohol-soluble protein film liquid uniform application to starch film side, room temperature
Dried prepared double-deck potato starch-zein bilayer edible film, thickness is 0.14mm.
The mechanical property of the double-deck edible film that present invention test obtains and permeability, result shows,
Its tensile strength is 14.4MPa, and elongation at break is 47.3%, moisture permeable coefficient 0.67 × 10-12(kg m)/(m2
S Pa), oxygen permeability coefficient is 0.88 × 10-18m3/(m2s Pa)。
Double-deck edible film obtained above is prepared food pack by the present invention: with zein
Film is inner layer film, carries out compacting sealing, make packaging bag, as the tune of instant food under the conditions of 130 DEG C
Taste substance packaging bag.
The sealing strength of the condiment packaging bag that present invention test obtains and solubility property, result shows, its
Sealing strength is 340N/m.In 100 DEG C of hot water, about 175s can be completely dissolved.
The dissolubility of double-deck edible film that the present invention is also obtained by the present invention, mechanical property, poisture-penetrability
Can and oxygen permeability, and the sealing strength of food pack detects, and testing result is as shown in table 1.
Table 1 embodiment of the present invention 1～3 particular product performance parameters table
As can be seen from Table 1, the double-deck edible film that the present invention obtains has the dissolubility of excellence, power
Learn performance, water vapour permeability and oxygen permeability.Wherein, the hot strength of described double-deck edible film is the highest
For 14.4MPa, elongation at break is up to 55.4%, and moisture permeable coefficient optimum is 0.61 × 10-12
(kg·m)/(m2S Pa), oxygen permeability coefficient optimum is 0.77 × 10-18m3/(m2S Pa), the fastest molten at 100 DEG C
The solution time is 155s.The sealing strength of the food pack that the present invention obtains can enough reach 340N/m.
As seen from the above embodiment, the invention provides a kind of double-deck edible film and preparation method thereof and
Application.The double-deck edible film that the present invention provides includes stratum granulosum and is arranged on described stratum granulosum surface
Zein layer；Described stratum granulosum includes the component of following parts by weight: starch 30～120 parts；Plant
Thing quintessence oil 2～5 parts；It is in terms of 30～120 parts by the parts by weight of starch in described stratum granulosum, described Semen Maydis alcohol
Molten albumin layer includes the zein of 10～20 parts.The double-deck edible film that the application provides does not has
Have and add any harmful chemicals thing, human body is not had any infringement.Additionally, test result indicate that, this
The double-deck edible film that invention obtains has dissolubility, mechanical property, water vapour permeability and the oxygen flow of excellence
Performance.Wherein, the hot strength of described double-deck edible film is up to 14.4MPa, and elongation at break is
A height of 55.4%, moisture permeable coefficient optimum is 0.61 × 10-12(kg·m)/(m2S Pa), oxygen permeability coefficient optimum is
0.77×10-18m3/(m2S Pa), dissolution time the fastest at 100 DEG C is 155s.The food that the present invention obtains
The sealing strength of packaging bag can enough reach 340N/m.
The above is only the preferred embodiment of the present invention, it is noted that general for the art
For logical technical staff, under the premise without departing from the principles of the invention, it is also possible to make some improvement and profit
Decorations, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a double-deck edible film, including stratum granulosum and the Semen Maydis alcohol being arranged on described stratum granulosum surface
Molten albumin layer；
Described stratum granulosum includes the component of following parts by weight:
Starch 30～120 parts；
Plants essential oil 2～5 parts；
It is in terms of 30～120 parts by the parts by weight of starch in described stratum granulosum, described zein layer bag
Include the zein of 10～20 parts.
Double-deck edible film the most according to claim 1, it is characterised in that described stratum granulosum bag
Include the component of following parts by weight:
Starch 50～100 parts；
Plants essential oil 3～4 parts；
It is in terms of 50～100 parts by the parts by weight of starch in described stratum granulosum, described zein layer bag
Include 13～18 parts of zein.
Double-deck edible film the most according to claim 1 and 2, it is characterised in that described starch
For the one in wheaten starch, potato starch and corn starch, two or three.
Double-deck edible film the most according to claim 1 and 2, it is characterised in that described plant
Quintessence oil be the one in Fructus Citri Limoniae quintessence oil, Flos Rosae Rugosae quintessence oil and thyme oil, two or three.
Double-deck edible film the most according to claim 1 and 2, it is characterised in that described starch
The thickness of layer is 0.01～0.5mm；
The thickness of described double-deck edible film is 0.011～0.8mm.
Double-deck edible film the most according to claim 1 and 2, it is characterised in that described Semen Maydis
Alcohol soluble protein layer is arranged on the surface of described stratum granulosum side.
7. the preparation method of the double-deck edible film described in claim 1～6 any one, including as follows
Step:
The mixture including starch, plants essential oil and water is carried out film forming for the first time, obtains starch film；
To include that zein carries out second time with the mixed liquor of ethanol on the surface of described starch film and becomes
Film, obtains double-deck edible film；
The thickness of described stratum granulosum is 0.01～0.5mm；
The thickness of described double-deck edible film is 0.011～0.8mm.
8. described in double-deck edible film described in claim 1～6 any one or claim 7
Double-deck edible film prepared by preparation method is as the application of food pack.
Application the most according to claim 8, it is characterised in that described food pack is for convenience of food
The condiment packaging bag of product.
Application the most according to claim 8 or claim 9, it is characterised in that described food pack with
Stratum granulosum is as outer surface.
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| CN201610428889.2A CN105885113B (en) | 2016-06-16 | 2016-06-16 | A kind of bilayer edible film and its preparation method and application |
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| CN201610428889.2A CN105885113B (en) | 2016-06-16 | 2016-06-16 | A kind of bilayer edible film and its preparation method and application |
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Cited By (5)
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| CN106496646A (en) * | 2016-10-20 | 2017-03-15 | 河南工业大学 | A kind of corn starch is combined edible flavoring agent packaging film and preparation method thereof with wheaten starch |
| CN108299685A (en) * | 2017-12-01 | 2018-07-20 | 星光印刷（苏州）有限公司 | A kind of degradable food-grade packaging film and preparation method |
| CN109369942A (en) * | 2018-10-30 | 2019-02-22 | 顺德职业技术学院 | It is a kind of intelligently to indicate edible film and preparation method thereof, purposes |
| CN112026290A (en) * | 2020-09-03 | 2020-12-04 | 湖南工业大学 | Starch-protein-based composite membrane material |
| CN112592516A (en) * | 2020-12-10 | 2021-04-02 | 湖南工业大学 | Double-layer high-strength fully-degradable starch-based cast film |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106496646A (en) * | 2016-10-20 | 2017-03-15 | 河南工业大学 | A kind of corn starch is combined edible flavoring agent packaging film and preparation method thereof with wheaten starch |
| CN108299685A (en) * | 2017-12-01 | 2018-07-20 | 星光印刷（苏州）有限公司 | A kind of degradable food-grade packaging film and preparation method |
| CN109369942A (en) * | 2018-10-30 | 2019-02-22 | 顺德职业技术学院 | It is a kind of intelligently to indicate edible film and preparation method thereof, purposes |
| CN112026290A (en) * | 2020-09-03 | 2020-12-04 | 湖南工业大学 | Starch-protein-based composite membrane material |
| CN112026290B (en) * | 2020-09-03 | 2022-07-19 | 湖南工业大学 | Starch-protein-based composite membrane material |
| CN112592516A (en) * | 2020-12-10 | 2021-04-02 | 湖南工业大学 | Double-layer high-strength fully-degradable starch-based cast film |
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| CN105885113B (en) | 2018-06-22 |
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