CN105199401B - A kind of edible antibacterial is replenished the calcium packaging film and preparation method thereof - Google Patents
A kind of edible antibacterial is replenished the calcium packaging film and preparation method thereof Download PDFInfo
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Abstract
A kind of edible antibacterial is replenished the calcium packaging film, including gelatin, calcium lactate, glycerine, galic essential oil, water.The present invention has the beneficial effect that：Edible antibacterial of the present invention packaging film of replenishing the calcium is biodegradable, tensile strength is high, good water permeability, uniform color, the growth of food spoilage, and supplementing calcium element can effectively be suppressed, it is without any side effects, solves the pollution environment of existing food package film, the problems such as easily causing packaging food microbiological contamination corruption.
Description
Technical field
The invention belongs to food processing technology field, particularly a kind of edible antibacterial is replenished the calcium packaging film and its preparation side
Method.
Background technology
The utilization of biodegradable and biocompatible substance in renewable resource affects global economy strongly
With the future development of environment.In recent years, consumption of petroleum fundamentally limits the development of the plastic package material based on oil.Cause
This, new packaging material development strategy is directed to synthesising macromolecule copolymer composite membrane, such as polysaccharide, protein, and lipid etc., with
Reduce the consumption of nonrenewable resources and the discharge of greenhouse gases.Gelatin is from connectives such as animal skin, bone, sarolemma, flesh evil spirits
A kind of peptide and protein that collagenous portion degraded in tissue forms, has good retentiveness, film forming and emulsification property,
It is widely used to food, cosmetics and pharmaceuticals industry.Therefore, gelatin is a kind of preferable filmogen, colorless and odorless, without waving
Hair property, transparent hard non-crystalline material, dissolve in hot water, insoluble in cold water, but slowly water swelling can soften, gelatin can
Absorb water of 5-10 times equivalent to weight.It can be combined with chitosan, lactalbumin, soybean protein, nano material and mineral matter etc.
Form functional composite membrane.
Calcium is one of element needed by human, and it is the weight for forming skeleton, tooth, internal organs, blood and musculature
Want constituent.Calcium ion participates in many physiological functions of human body, such as nerve excitability, contraction of muscle, cardiomotility etc..It is
Physical barriers together with harmful organism and microorganism are prevented in living environment, while also the transport with gas and nutriment has
Close.China's third time nutrition survey result shows that the calcium intake of China's all ages and classes and different occupation crowd are generally low, puts down
Calcium intake is less than 400mg for each person every day, and the 50% of insufficient Nutrition Society's recommended amounts.The phenomenon of Children and teenager calcium deficiency is more
To be serious, the 50% of the calcium intake deficiency recommended amounts of 70%~80% crowd, it is fully achieved recommended amounts person only accounts for crowd 3%
~4%.Therefore it is extremely to be necessary calcium to be added in conventional food, and effectively solves an effective means of calcium deficiency.Breast
Sour calcium has high calcium content, absorptivity height, solubility is big, safe, price is more low excellent as a kind of calcium containing compound
Point, it has been widely used as calcium complement agent, and has had been used for the development and utilization of compound edible film.
The putrid and deteriorated of food is substantially that Protein in Food, carbohydrate, fat etc. are decomposed by microbial metabolism
Effect, or some biochemical change procedures caused by the histaminase of itself.Food apoilage not only reduces the battalion of food
Value is supported, engender a repugnance sense, but also can produce various poisonous and harmful substances, causes eater that acute poisoning or production occurs
Raw chronic murder by poisoning.The putrid and deteriorated of food is the practical problem of generally existing in varieties of food items, therefore, it is necessary to study and grasp food
The putrid and deteriorated rule of product, control measure are targetedly formulated to prevent that it is putrid and deteriorated that food from occurring.Food apoilage
Reason, there are following three aspects：(1) microbial action；(2) enzyme effect；(3) non-enzyme effect, wherein main is by microorganism
Effect.Food spoilage microorganism can cause food that chemically or physically change of properties occurs so that food lose it is original
Nutritive value, tissue characteristics and color, turn into the microorganism for not meeting food hygiene requirement.Due to food quality, source
Different with working process, causing the microorganism of food spoilage, also each variant generally bacterium, mould, yeast can cause food rotten
Lose.Common food spoilage is bacillus subtilis (Bacillus subtilis), staphylococcus aureus
(Staphylococcus aureas), salmonella (Salmonella), Escherichia coli (Escherichia coli) etc..
Antiseptic (anti-bacterial agents) can within a certain period of time, make certain micro-organisms (bacterium, fungi,
Saccharomycete, algae and virus etc.) growth or breeding be maintained at necessary chemical substance below horizontal.Antiseptic be have it is antibacterial
With the material or product of bactericidal property.Antiseptic is generally divided into inorganic antiseptic, organic antibacterial agent and natural antibacterial agent.Common
Inorganic antiseptic has the metal ions such as silver, copper, zinc, and the principal item of organic antibacterial agent has vanillic aldehyde or ethyl vanillin aldehydes chemical combination
Thing, it is usually used in polyethylene kind food package film, plays antibacterial action.There is anilid class, imidazoles, thiazoles, different in addition
Thiazolinone derivative, quaternary ammonium salt, double croak classes, phenols etc..However, inorganic and organic antibacterial agent, especially antibiotic, are respectively provided with
Certain toxic side effect, food antibacterial additives can not be used as.
The content of the invention
The present invention solves existing technical problem to preferably overcome existing technological deficiency.There is provided one kind can biology
Degraded, edible, antibacterial, supplementary calcium food packaging film and preparation method thereof, the matrix of the film use animal collagen, low-carbon ring
Protect, add natural antibacterial plants essential oil, can effectively suppress conventional food spoilage organisms, and the calcium constituent in supplements, it is adopted
Concrete technical scheme is as follows：
A kind of edible antibacterial is replenished the calcium packaging film and preparation method thereof, and its preparation method comprises the following steps：
(1) it is configured to film liquid：Preparation weight/volume is respectively that 2%-8% and 0.5%-5% gelatin-glycerine is water-soluble
Liquid, stir, be placed in 45 DEG C of water-baths, stand swelling 20-30min；Another weight/volume of preparing is respectively 0.1%-5%
Calcium lactate-galic essential oil aqueous solution with 1%~3%, is added into the gelatin-glycerine water solution dissolved, and film forming is made
Liquid；
(2) homogeneous：To step (1) into film liquid carry out homogeneous, homogenizing temperature be 45 DEG C~50 DEG C, homogenization pressure be 10~
25MPa, homogeneous time are 10-15min；
(3) excusing from death degassing：Ultrasonic wave degassing will be carried out into film liquid after step (2) homogeneous, temperature is 45 DEG C~50 DEG C, frequency
Rate is 40kHz, 10~20min of ultrasonic wave degassing；
(4) plastic film mulch：Into film liquid, casting film-forming on plane template will be poured on, and put after ultrasound degassing in step (3)
In drying box, 40 DEG C of dryings 6~8 hours；
(5) film is taken off：Film dried in step (4) is removed,.
The volume ratio of step (1) gelatin-glycerine water solution and calcium lactate-galic essential oil aqueous solution is 1:1.
Step (1) calcium lactate-galic essential oil aqueous solution is surpassed in addition calcium lactate with being needed after galic essential oil
Sound dissolves.
Step (1) each material dissolving uses deionized water.
Step (2) homogenizing process is carried out using homogenizer.
Step (3) the ultrasonic degasification process is carried out using supersonic wave cleaning machine.
Step (4) described drying box is air dry oven.
Edible antibacterial prepared by method described above is replenished the calcium packaging film, including gelatin, calcium lactate, glycerine, galic essential oil,
Water.
Edible antibacterial packaging film thickness of replenishing the calcium be 0.080mm~0.110mm, tensile strength for 5.75~
21.88Mpa, water penetration are 30.12%~38.93%.
A kind of edible antibacterial of the present invention is replenished the calcium packaging film, is made up with gelatin (animal collagen) of matrix, institute
State clearly and antimicrobial component galic essential oil is with the addition of in glue, and calcium complement agent calcium lactate.Gelatin is a kind of fat-free high protein, and not
A kind of food thickening agent of native trophism containing cholesterol.Gelatin is also a kind of strong protecting colloid, and emulsifying ability is strong, enters
The protein such as milk, soya-bean milk cohesion because caused by acting on hydrochloric acid in gastric juice can be suppressed after entering stomach, so as to be advantageous to food digestion.Breast
The molecular formula of sour calcium is CH3CHOHCOO2Ca·5H2O, white particle or powder, have solubility height, dissolution velocity fast, biological
Utilization rate is high, in good taste, is widely used in the fields such as dairy products, beverage, health care of food product.
Natural antibacterial agent essentially from natural plants extraction, such as plants essential oil, chitin, mustard, castor oil, horseradish
Deng, it is easy to use, it is safe and non-toxic to have no side effect.The bioactive ingredients of garlic are garlic essential oil (beneficial allicins), only account for garlic composition
0.2% or so.Garlic essential oil contains the extremely precious natural materials of kind more than 140, and its composition can totally be divided into two major classes, Yi Leishi
Volatile ingredient (also known as garlic oil), including more than 40 kinds of sulfide compound；One kind is involatile constituent, including more than 100 kinds of ester
Class, trace element, mineral matter and various amino acid etc..Exactly these complicated and excellent compositions assign galic essential oil flexible glue
The outstanding function of capsule.Galic essential oil is multicomponent mixture, by allicin (C6H10OS2), Allicin (C6H10O2S it is) and more
The sulfide compound composition of kind pi-allyl and methyl composition：(CH2=CHCH2)2S、(CH2CHCH2)2S2、(CH2=CHCH2)2S3、
(CH3)2S、(CH3CH2)2S2、(CH3)2S3、CH2=CHCH2SCH3、CH3CH2CH2S2CH3、CH2=CHCH2S3CH3, also contain lemon
Lemon aldehyde (Citral), geraniol (Geraniol), linalool (Linalool), а-phellandrene (Phellan-drene), third
Aldehyde, valeral etc..Wherein main component has 6 kinds, belongs to allyl sulfide ethers material, is allyl methyl thioether, diallyl sulphur
Ether, allyl methyl disulfide, diallyl disulphide, allyl methyl trisulfide ether, Diallytrisin, diallyl three
Thioether is the main component that galic essential oil has physiologically active.
Modern medicine man, biologist, medical scholar, garlic is confirmed by substantial amounts of scientific experimentation and clinical experiment
Essential oil has eight large effects：
1st, it is antibacterial, sterilize, the effect of killing the virus.Garlic is to various pathogens such as staphylococcus, streptococcus, meningitis bacterium, big
The bacteriums such as enterobacteria, typhoid bacillus, shigella dysenteriae, Bordetella pertussis and common cold virus have suppression and killing action.
2nd, reducing blood lipid, anti-freezing, prevention of arterial hardening, prevention and treatment cardiovascular and cerebrovascular disease.Alkyl curing in garlic
Thing, alliin and allicin can reduce the content of cholesterol in blood, triglyceride and low-density lipoprotein, so that blood
Fat tends to be normal.
3rd, it is hypoglycemic, reduce the breaking-out of diabetes.This effect is the activity by strengthening enzyme in glucose metabolism, improves sugar
It is metabolized and influences the metabolism of fat.
4th, liver, function of tumor inhibition are protected.Reached by damage of the anti-lipid peroxidation thing to membrane structure
Liver-protective effect.Garlic essential oil plays the role of to block or suppress chemical carcinogen induced tumor, suppresses animal transplanting tumor
Cell.
5th, free radical is removed, improves immunity of organisms, anti-aging, enhancing muscle power.Garlic essential oil can strengthen the energy of phagocyte
Power, it is anti-oxidant, the effect of enhancement of SOD, free radical, strengthen immunity can be removed.
6th, lowering blood-fat and reducing weight function, by dissolved fat particle, promote the decomposition of fat, have the function that lowering blood-fat and reducing weight.
7th, impotence is treated, plays the role of research and shows that garlic has treatment impotence really.
8th, glycometabolism is improved, research confirms, eats the effect that garlic is improved normal person's glucose tolerance raw, while can also promote
Enter the secretion of insulin and increase producing level of the histocyte to glucose, so as to reduce blood sugar level.
Because gelatin and glycerine solubility are larger, dissolution velocity is fast；And calcium lactate and galic essential oil solubility are small, dissolving speed
Degree is slow, therefore gelatin and glycerine, calcium lactate and galic essential oil are respectively configured into gelatin-glycerine water solution, calcium lactate-galic essential oil
The aqueous solution, then mixed, it can effectively ensure the homogeneity of film forming matrix gelatin, make there is composition to be uniformly blended in this hair
In the bright packaging film.
Calcium lactate molecule is present in into positively charged calcium ion and negatively charged lactate ion in film liquid
Form is present, therefore can increase the electrostatic attraction with the active material in galic essential oil, exists so as to greatly promote galic essential oil
Into the dissolving in film liquid.The fungistatic effect of galic essential oil, bacterial cell membrane is passed through dependent on the active material in its composition, entered
Played a role in bacterial cell.After composite membrane enters in eater's body, calcium ion caused by composite membrane decomposition, which has, to be destroyed
Cell membrane forms the effect of calcium channel, promotes galic essential oil active material and enters cells play bactericidal action by calcium channel,
Therefore calcium lactate can effectively strengthen the bacteriostasis of galic essential oil.
Glycerine, i.e. glycerine, it is colourless sweet clear and bright thick liquid.Suitable for the analysis of the aqueous solution, solvent, gas gauge and
It is hydraulic press bradyseism liquid, softening agent, antibiotic fermentation nutritional agents, drier, lubricant, pharmaceuticals industry, cosmetic formulations, organic
Synthesis, plasticiser.It can be dissolved in any proportion with water, low concentration glycerin solution can make lubricating oil and skin is moistened.It is sweet
Oil can be combined into film liquid with gelatin molecule, play a part of plasticiser, increase the hardness for forming film.
The present invention has the beneficial effect that：Edible antibacterial of the present invention is replenished the calcium, and packaging film is biodegradable, and tensile strength is high,
Good water permeability, uniform color, it can effectively suppress the growth of food spoilage, and supplementing calcium element, without any side effects, solution
Determine the pollution environment of existing food package film, the problems such as easily causing packaging food microbiological contamination corruption.
Brief description of the drawings
Fig. 1 is that a kind of edible antibacterial of the present invention is replenished the calcium packaging film using renderings
Brief description of the drawings：1st, blank assay curve, 2, comparative example empirical curve, 3, the empirical curve of embodiment 1,4, embodiment 2
Empirical curve, 5, the empirical curve of embodiment 3
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, below it is right
The embodiment of the present invention is described further, but does not limit protection scope of the present invention.
Embodiment 1：
Edible antibacterial is prepared to replenish the calcium packaging film：
(1) it is configured to film liquid：0.5000g gelatin and 0.2000g glycerine are weighed, is dissolved in 10ml deionized waters, stirring is equal
It is even, it is placed in 45 DEG C of water-baths, stands swelling 25min.It is another to weigh 0.0500g calcium lactates and 0.1000g galic essential oils, add 10ml
Deionized water is made into calcium lactate-galic essential oil aqueous solution, with 1:1 ratio is added into the gelatin-glycerine water solution dissolved
In.
(2) homogeneous：Homogeneous is carried out into film liquid to step (1) using homogenizer, homogenizing temperature is 47 DEG C, and homogenization pressure is
20MPa, homogeneous time are 13min.
(3) excusing from death degassing：By being placed in into film liquid in supersonic wave cleaning machine after step (2) homogeneous, temperature is 47 DEG C, frequency
For 40kHz, ultrasonic wave degassing 15min.
(4) plastic film mulch：Into film liquid, casting film-forming on plane template will be poured on, and put after ultrasound degassing in step (3)
In air dry oven, 40 DEG C of dryings 7 hours.
(5) film is taken off：Film dried in step (4) is carefully removed using instruments such as pocket knives.
Edible antibacterial of the present invention is obtained by above step and material proportioning to replenish the calcium packaging film.
Embodiment 2：
Edible antibacterial is prepared to replenish the calcium packaging film：
(1) it is configured to film liquid：0.2000g gelatin and 0.0500g glycerine are weighed, is dissolved in 10ml deionized waters, stirring is equal
It is even, it is placed in 45 DEG C of water-baths, stands swelling 20min.It is another to weigh 0.0100g calcium lactates and 0.2000g galic essential oils, add 10ml
Deionized water is made into calcium lactate-galic essential oil aqueous solution, with 1:1 ratio is added into the gelatin-glycerine water solution dissolved
In.
(2) homogeneous：Homogeneous is carried out into film liquid to step (1) using homogenizer, homogenizing temperature is 45 DEG C, and homogenization pressure is
10MPa, homogeneous time are 10min.
(3) excusing from death degassing：By being placed in into film liquid in supersonic wave cleaning machine after step (2) homogeneous, temperature is 45 DEG C, frequency
For 40kHz, ultrasonic wave degassing 10min.
(4) plastic film mulch：Into film liquid, casting film-forming on plane template will be poured on, and put after ultrasound degassing in step (3)
In air dry oven, 40 DEG C of dryings 6 hours.
(5) film is taken off：Film dried in step (4) is carefully removed using instruments such as pocket knives.
Edible antibacterial of the present invention is obtained by above step and material proportioning to replenish the calcium packaging film.
Embodiment 3：
Edible antibacterial is prepared to replenish the calcium packaging film：
(1) it is configured to film liquid：0.8000g gelatin and 0.5000g glycerine are weighed, is dissolved in 10ml deionized waters, stirring is equal
It is even, it is placed in 45 DEG C of water-baths, stands swelling 30min.It is another to weigh 0.5000g calcium lactates and 0.3000g galic essential oils, add 10ml
Deionized water is made into calcium lactate-galic essential oil aqueous solution, with 1:1 ratio is added into the gelatin-glycerine water solution dissolved
In.
(2) homogeneous：Homogeneous is carried out into film liquid to step (1) using homogenizer, homogenizing temperature is 50 DEG C, and homogenization pressure is
25MPa, homogeneous time are 15min.
(3) excusing from death degassing：By being placed in into film liquid in supersonic wave cleaning machine after step (2) homogeneous, temperature is 50 DEG C, frequency
For 40kHz, ultrasonic wave degassing 20min.
(4) plastic film mulch：Into film liquid, casting film-forming on plane template will be poured on, and put after ultrasound degassing in step (3)
In air dry oven, 40 DEG C of dryings 8 hours.
(5) film is taken off：Film dried in step (4) is carefully removed using instruments such as pocket knives.
Edible antibacterial of the present invention is obtained by above step and material proportioning to replenish the calcium packaging film.
Comparative example：
Prepare comparative example packaging film：
(1) it is configured to film liquid：0.5000g gelatin and 0.2000g glycerine are weighed, is dissolved in 10ml deionized waters, stirring is equal
It is even, it is placed in 45 DEG C of water-baths, stands swelling.It is another to weigh 0.0500g calcium lactates, 10ml deionized water wiring solution-formings are added, with 1:1
Ratio be added into the gelatin-glycerine water solution dissolved.
(2) homogeneous：Homogeneous is carried out into film liquid to step (1) using homogenizer, homogenizing temperature is 47 DEG C, and homogenization pressure is
20MPa, homogeneous time are 13min.
(3) excusing from death degassing：By being placed in into film liquid in supersonic wave cleaning machine after step (2) homogeneous, temperature is 47 DEG C, frequency
For 40kHz, ultrasonic wave degassing 15min.
(4) plastic film mulch：Into film liquid, casting film-forming on plane template will be poured on, and put after ultrasound degassing in step (3)
In air dry oven, 40 DEG C of dryings 7 hours.
(5) film is taken off：Film dried in step (4) is carefully removed using instruments such as pocket knives.
The packaging film comparative example for not containing galic essential oil composition is obtained by above step and material proportioning.
By carrying out the corresponding test specification present invention in thing to above-described embodiment 1, embodiment 2, embodiment 3, comparative example
Rationality energy, anti-microbial property have excellent performance.
Test event includes：
(1) edible antibacterial is replenished the calcium packaging film quantitative measurement.
According to GB13022-1991, using the tensile property of instrumental test composite membrane.
According to GB1037-70, coefficient was stolen using cup method analyzer vapor is intended.
Composite membrane color and luster evaluation is carried out using full-automatic colour examining colour-difference-metre
The physical property of embodiment and comparative example is as shown in table 1：
The physical property table of comparisons of the embodiment of table 1 and comparative example
Each performance of the embodiment of the present invention is better than comparative example after tested.
(2) edible antibacterial replenish the calcium packaging film antibiotic property test
Prepare a diameter of 25mm membrane sample
Conventional food spoilage organisms：Bacillus subtilis (Bacillus subtilis), staphylococcus aureus
(Staphylococcus aureas), salmonella (Salmonella), Escherichia coli (Escherichia coli) come from day
Tianjin University of Science and Technology is biological culture presevation administrative center, through LB medium cultures to exponential phase.By above-mentioned membrane sample and right
Tapetum (diameter is 25 ± 5mm) is put into culture dish, and 37 DEG C are cultivated 24 hours, observation and record inhibition zone size.It is different dense
The fungistatic effect for spending galic essential oil film and comparative example is as shown in table 2：
The fungistatic effect contrast table of the embodiment of table 2 and comparative example
| Membrane sample | Antibacterial circle diameter size (mm) |
| Comparative example | 25 |
| Embodiment 1 | 26.3 |
| Embodiment 2 | 27.5 |
| Embodiment 3 | 29.8 |
Understand that each embodiment fungistatic effect is superior to comparative example fungistatic effect from numerical value contrast.
(3) edible antibacterial replenish the calcium packaging film packed and cooled fresh meat application test
According to GB/T 5009.44-2003, using semi-micro-sample distillation, the fresh pork from supermarket (is stored up at 4 DEG C
Hide) carry out fresh-keeping experiment.Weigh 10.0g and grind uniform meat sample, be placed in leaching in distilled water of the 100ml without ammonia and take out 30min, constantly
Shaking, 10% sample leaching drawing liquid is made after filtering, after adding 2% boric acid solution and 5-6 drop mixed indicators, uses absorption
It soaks drawing liquid 2ml in the reative cell of distiller with container, adds 1% sodium hydroxide solution 5ml, is passed through steam and distills
5min, with 0.01mol/L normal hydrochloric acid drop surely to terminal (being in hyacinthine).Determined respectively using such a method the after storage
1st, 3,6,9 days unpackaged, comparative example packaging (composite membrane for being free of galic essential oil), various concentrations gradient galic essential oil composite membrane
The change of the meat sample volatility alkali ammonia content of embodiment packaging.Calculated as the following formula：
In formula：V1：Sample solution consumes 0.01mol/L HCl standard liquid mL numbers；V2：Blank solution consumes 0.01mol/
L HCl standard liquid mL numbers；W：The weight (g) of sample；Mg number of the 14 1.0mol/L HCl standard liquids equivalent to ammonia.
Fig. 1 is that the pork of gelatin-calcium lactate composite film packaging of addition various concentrations galic essential oil is waved in cold storage procedure
The changes of contents situation of hair property alkali nitrogen.Wherein blank test curve 1 is that the pork of unpackaged packaging film of the present invention exists
TVB-N content change curve under natural frozen state.
As shown in Figure 1, the pork of Different Package state is in cold storage procedure, with the extension of time, its volatility alkali
The content of nitrogen all gradually rises.The content increase of the VBN of wherein unpacked pork sample is most notable, with multiple
The increase of distiller's wort content in film is closed, the content increasing degree of its VBN is gradually reduced.The result shows institute of the present invention
The corruption of meat can be delayed by stating gelatin-calcium lactate composite membrane of addition galic essential oil, have it is fresh-keeping well, packaged by extension
The function of shelf life.
Packaging film of the present invention is described by specific embodiment.Those skilled in the art can borrow
Mirror present disclosure suitably changes the links such as product composition, technological parameter to realize corresponding other purposes, and its correlation changes
All without departing from present disclosure, all similar replacements and change are apparent to those skilled in the art
, it is considered as being included within the scope of the present invention.
Claims (10)
- The packaging film 1. a kind of edible antibacterial is replenished the calcium, it is characterised in that be obtained as follows：(1) it is configured to film liquid：Gelatin-glycerine water solution that weight/volume is respectively 2%-8% and 0.5%-5% is prepared, is stirred Mix uniformly, be placed in 45 DEG C of water-baths, stand swelling 20-30min；Another weight/volume of preparing is respectively 0.1%-5% and 1% ~3% calcium lactate-galic essential oil aqueous solution, it is added into the gelatin-glycerine water solution dissolved, film liquid is made into；(2) homogeneous：To step (1) into film liquid carry out homogeneous, homogenizing temperature be 45 DEG C~50 DEG C, homogenization pressure be 10~ 25MPa, homogeneous time are 10-15min；(3) excusing from death degassing：Ultrasonic wave degassing will be carried out into film liquid after step (2) homogeneous, temperature is 45 DEG C~50 DEG C, and frequency is 40kHz, 10~20min of ultrasonic wave degassing；(4) plastic film mulch：Into film liquid, casting film-forming on plane template will be poured on, and be placed on dry after ultrasound degassing in step (3) In dry case, 40 DEG C of dryings 6~8 hours；(5) film is taken off：Film dried in step (4) is removed,.
- The packaging film 2. a kind of edible antibacterial according to claim 1 is replenished the calcium, it is characterised in that step (1) described gelatin- The volume ratio of glycerine water solution and calcium lactate-galic essential oil aqueous solution is 1:1.
- The packaging film 3. a kind of edible antibacterial according to claim 1 is replenished the calcium, it is characterised in that step (1) described lactic acid Calcium-galic essential oil aqueous solution is adding calcium lactate with needing progress ultrasonic dissolution after galic essential oil.
- The packaging film 4. a kind of edible antibacterial according to claim 1 is replenished the calcium, it is characterised in that step (1) each thing Matter dissolving uses deionized water.
- The packaging film 5. a kind of edible antibacterial according to claim 1 is replenished the calcium, it is characterised in that step (2) described homogeneous Process is carried out using homogenizer.
- The packaging film 6. a kind of edible antibacterial according to claim 1 is replenished the calcium, it is characterised in that step (3) described ultrasound Degasification process is carried out using supersonic wave cleaning machine.
- The packaging film 7. a kind of edible antibacterial according to claim 1 is replenished the calcium, it is characterised in that step (4) described drying Case is air dry oven.
- The packaging film 8. edible antibacterial according to claim 1 is replenished the calcium, it is characterised in that the edible antibacterial is replenished the calcium bag Dress film thickness is 0.080mm~0.110mm, and tensile strength is 5.75~21.88Mpa, and water penetration is 30.12%~38.93%.
- The preparation method of packaging film 9. the edible antibacterial described in claim 1 is replenished the calcium, it is characterised in that preparation process is：(1) it is configured to film liquid：Gelatin-glycerine water solution that weight/volume is respectively 2%-8% and 0.5%-5% is prepared, is stirred Mix uniformly, be placed in 45 DEG C of water-baths, stand swelling 20-30min；Another weight/volume of preparing is respectively 0.1%-5% and 1% ~3% calcium lactate-galic essential oil aqueous solution, it is added into the gelatin-glycerine water solution dissolved, film liquid is made into；(2) homogeneous：To step (1) into film liquid carry out homogeneous, homogenizing temperature be 45 DEG C~50 DEG C, homogenization pressure be 10~ 25MPa, homogeneous time are 10-15min；(3) excusing from death degassing：Ultrasonic wave degassing will be carried out into film liquid after step (2) homogeneous, temperature is 45 DEG C~50 DEG C, and frequency is 40kHz, 10~20min of ultrasonic wave degassing；(4) plastic film mulch：Into film liquid, casting film-forming on plane template will be poured on, and be placed on dry after ultrasound degassing in step (3) In dry case, 40 DEG C of dryings 6~8 hours；(5) film is taken off：Film dried in step (4) is removed,.
- The packaging film 10. edible antibacterial according to claim 5 is replenished the calcium, it is characterised in that the edible antibacterial is replenished the calcium Packaging film thickness is 0.080mm~0.110mm, and tensile strength is 5.75~21.88Mpa, water penetration is 30.12%~ 38.93%.
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| CN106280497A (en) * | 2016-08-08 | 2017-01-04 | 惠州学院 | A kind of Folium Artemisiae Argyi quintessence oil antimicrobial film material and preparation method thereof |
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| CN103159970A (en) * | 2013-04-09 | 2013-06-19 | 河南工业大学 | Preparation method of edible film with antibacterial and antioxidant functions |
| CN103333509A (en) * | 2013-07-02 | 2013-10-02 | 福州大学 | Edible fish skin collagen antibacterial film containing thyme essential oil |
| CN103937272A (en) * | 2014-04-18 | 2014-07-23 | 山东省花生研究所 | Edible peanut protein isolate antimicrobial coating and preparation method thereof |
| CN104231297A (en) * | 2014-10-13 | 2014-12-24 | 北京格瑞智博生态科技研究院 | Edible fully-biodegraded seaweed plastic wrap and preparation method thereof |
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