CN105199401A - Edible antibacterial calcium supplementing packaging film and preparation method thereof - Google Patents
Edible antibacterial calcium supplementing packaging film and preparation method thereof Download PDFInfo
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- CN105199401A CN105199401A CN201510557586.6A CN201510557586A CN105199401A CN 105199401 A CN105199401 A CN 105199401A CN 201510557586 A CN201510557586 A CN 201510557586A CN 105199401 A CN105199401 A CN 105199401A
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Abstract
The invention discloses an edible antibacterial calcium supplementing packaging film. The edible antibacterial calcium supplementing packaging film is prepared from gelatin, calcium lactate, glycerol, garlic essential oil and water. The edible antibacterial calcium supplementing packaging film disclosed by the invention has the beneficial effects that the edible antibacterial calcium supplementing packaging film is biodegradable, the tensile strength is high, the water permeability is good, the color is uniform, the growth of food spoilage bacteria can be effectively restrained, the element-calcium can be supplemented, no any toxic and side effects are generated, and the problems that packaged food is easy to be infected by bacteria and go bad under a pollution environment of existing food packaging films, and the like can be solved.
Description
Technical field
The invention belongs to food processing technology field, particularly the antibacterial packing film and preparation method thereof of replenishing the calcium of a kind of edible.
Background technology
The utilization of the biodegradable and biocompatible substance in renewable resources is affecting the future development of global economy and environment strongly.In recent years, consumption of petroleum fundamentally limits the development of the Plastic Packaging Materials based on oil.Therefore, new wrapping material development strategy is devoted to synthesising macromolecule copolymer composite membrane, as polysaccharide, and protein, and lipid etc., with the discharge of the consumption and greenhouse gases that reduce nonrenewable resources.Gelatin is a kind of peptide and protein from the collagenous portion degraded in the reticular tissue such as animal skin, bone, sarolemma, flesh evil spirit, has good retentiveness, film-forming properties and emulsification property, has been widely used in food, makeup and pharmaceutical industry.Therefore, gelatin is a kind of desirable film forming material, colorless and odorless, and non-volatility, transparent hard amorphous material, dissolve in hot water, be insoluble to cold water, but can slowly water-swelling soften, and gelatin Absorbable rod is equivalent to weight 5-10 water doubly.Can with chitosan, whey-protein, soybean protein, nano material and mineral substance etc. combine and are formed with the composite membrane of function.
Calcium is one of element of needed by human, and it is the important composition composition of composition skeleton, tooth, internal organs, blood and muscle tissue.Calcium ion participates in many physiological functions of human body, as nerve excitability, and Muscle contraction, cardiomotility etc.It stops harmful organism physical barriers together with microorganism in living environment, simultaneously also relevant with the transport of gas and nutritive substance.China's third time nutrition survey result display, the calcium intake of China's different ages and different occupation crowd is generally low, on average for each person every day calcium intake lower than 400mg, 50% of not enough NI recommended amounts.The phenomenon of Children and teenager calcium deficiency is even more serious, 50% of recommended amounts that the calcium intake of 70% ~ 80% crowd is not enough, and reach that recommended amounts person only accounts for crowd completely 3% ~ 4%.Therefore in conventional food, add calcium is extremely be necessary, and effectively solves an effective means of calcium deficiency.Calcium lactate, as a kind of calcium containing compound, has the advantages such as calcium contents is high, specific absorption is high, solubleness is large, security is high, price is lower, has been widely used as calcium complement agent, and for the development and utilization of compound edible film.
Food putrid and deteriorated be in fact Protein in Food, carbohydrate, fat etc. by microbial metabolism Decomposition, or some biochemical change procedure that the histaminase of self causes.Food spoilage not only reduces Nutritive value of food, and engender a repugnance sense, but also can produce various hazardous and noxious substances, causes eater that acute poisoning occurs or produces chronic murder by poisoning.The putrid and deteriorated of food is ubiquitous practical problems in varieties of food items, therefore, must study and grasp the rule of food spoilage, formulates measure of control targetedly putrid and deteriorated to prevent food from occurring.The reason of food spoilage, has following three aspects: (1) microbial process; (2) enzyme effect; (3) non-enzymatic effect, wherein main is the effect being subject to microorganism.Food spoilage microorganism can cause food that chemistry or change in physical occur, thus makes food lose original nutritive value, tissue characteristics and color, becomes the microorganism not meeting food sanitation and require.Because food quality, source are different with processing treatment, also each variant usual bacterium, mould, yeast can cause food spoilage to cause the microorganism of food spoilage.Common food spoilage is subtilis (Bacillussubtilis), streptococcus aureus (Staphylococcusaureas), Salmonellas (Salmonella), intestinal bacteria (Escherichiacoli) etc.
Antiseptic-germicide (anti-bacterialagents) can within a certain period of time, make the growth of certain micro-organisms (bacterium, fungi, yeast, algae and virus etc.) or breeding remain on chemical substance necessary below horizontal.Antiseptic-germicide is material or the product with antibacterial and bactericidal property.Antiseptic-germicide 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 Vanillin or ethyl vanillin aldehyde compound, is usually used in polyethylene kind food packaging film, plays anti-microbial effect.Also have anilid class, imidazoles, thiazoles, isothiazolone derivative, quaternary ammonium salt, two croak class, phenols etc. in addition.But inorganic and organic antibacterial agent, especially microbiotic, all have certain toxic side effect, cannot as food antimicrobial additive.
Summary of the invention
The present invention, in order to better overcome existing technological deficiency, solves existing technical problem.A kind of biodegradable, edible, antibacterial, supplementary calcium food packing film and preparation method thereof are provided, the matrix of this film adopts animal collagen, low-carbon environment-friendly, add natural antibacterial plants essential oil, can effectively suppress conventional food spoilage organism, and the calcium constituent in supplementing foodstuff, its concrete technical scheme adopted is as follows:
The antibacterial packing film and preparation method thereof of replenishing the calcium of a kind of edible, its preparation method comprises the steps:
(1) film forming liquid is prepared: preparation weight/volume is respectively the gelatin-aqueous glycerin solution of 2%-8% and 0.5%-5%, stirs, is placed in 45 DEG C of water-baths, leaves standstill swelling 20-30min; Another preparation weight/volume is respectively the calcium lactate-Bulbus Allii quintessence oil aqueous solution of 0.1%-5% and 1% ~ 3%, is added in the gelatin-aqueous glycerin solution dissolved, obtained film forming liquid;
(2) homogeneous: homogeneous is carried out to the film forming liquid of step (1), homogenizing temperature is 45 DEG C ~ 50 DEG C, and homogenization pressure is 10 ~ 25MPa, and the homogeneous time is 10-15min;
(3) have children outside the state plan degassed: the film forming liquid after step (2) homogeneous is carried out ultrasonic degas, and temperature is 45 DEG C ~ 50 DEG C, and frequency is 40kHz, ultrasonic degas 10 ~ 20min;
(4) plastic film mulch: by the film forming liquid after ultrasonic degas in step (3), be poured on casting film-forming on flat formwork, and be placed in loft drier, 40 DEG C of dryings 6 ~ 8 hours;
(5) film is taken off: taken off by dried film in step (4).
The volume ratio of the described gelatin-aqueous glycerin solution of step (1) and calcium lactate-Bulbus Allii quintessence oil aqueous solution is 1:1.
Step (1) described calcium lactate-Bulbus Allii quintessence oil aqueous solution needs to carry out ultrasonic dissolution after adding calcium lactate and Bulbus Allii quintessence oil.
The described each substance dissolves of step (1) uses deionized water.
The described homogenizing process of step (2) adopts clarifixator to carry out.
The described ultrasonic degas process of step (3) adopts Ultrasonic Cleaners to carry out.
Step (4) described loft drier is air dry oven.
The antibacterial packing film of replenishing the calcium of the edible prepared with aforesaid method, comprises gelatin, calcium lactate, glycerine, Bulbus Allii quintessence oil, water.
The antibacterial packing film thickness of replenishing the calcium of described edible is 0.080mm ~ 0.110mm, and tensile strength is 5.75 ~ 21.88Mpa, and water-permeable is 30.12% ~ 38.93%.
The antibacterial packing film of replenishing the calcium of a kind of edible of the present invention, with gelatin (animal collagen) for matrix is made, with the addition of antimicrobial component Bulbus Allii quintessence oil in described gelatin, and calcium complement agent calcium lactate.Gelatin is a kind of fat free high protein, and not containing the food thickener of a kind of native trophism of cholesterol.Gelatin is also a kind of strong protective colloid, and emulsifying power is strong, can suppress the cohesion that the protein such as milk, soya-bean milk causes because of hydrochloric acid in gastric juice effect, thus be conducive to food digestion after entering stomach.The molecular formula of calcium lactate is CH
3cHOHCOO
2ca5H
2o, white particle or powder, have that solubleness is high, dissolution rate is fast, bioavailability is high, mouthfeel is good, is widely used in the fields such as milk-product, beverage, health care of food product.
Natural antibacterial agent is mainly from the extraction of natural phant, and as plants essential oil, chitin, mustard, Viscotrol C, horseradish etc., easy to use, safety non-toxic has no side effect.The bioactive ingredients of garlic is garlic essential oil (beneficial allicin), only accounts for about 0.2% of garlic composition.Garlic essential oil contains the extremely precious crude substance of kind more than 140, and its composition totally can be divided into two large classes, and a class is volatile component (also known as Oleum Bulbus Allii), comprises more than 40 kind of sulfide compound; One class is involatile constituent, comprises more than 100 kind of ester class, trace element, mineral substance and each seed amino acid etc.These complicated and excellent compositions give Bulbus Allii quintessence oil soft capsule outstanding function just.Bulbus Allii quintessence oil is multicomponent mixture, by allicin (C
6h
10oS
2), Diallyl Thiosulfonate (C
6h
10o
2s) and multiple allyl group and methyl composition sulfide compound composition: (CH
2=CHCH
2)
2s, (CH
2cHCH
2)
2s
2, (CH
2=CHCH
2)
2s
3, (CH
3)
2s, (CH
3cH
2)
2s
2, (CH
3)
2s
3, CH
2=CHCH
2sCH
3, CH
3cH
2cH
2s
2cH
3, CH
2=CHCH
2s
3cH
3, also containing citral (Citral), geraniol (Geraniol), phantol (Linalool), а-phellandrene (Phellan-drene), propionic aldehyde, valeral etc.Wherein main component has 6 kinds, all belong to allyl sulfide ethers material, for allyl methyl thioether, diallyl thioether, allyl methyl disulfide, diallyl disulphide, allyl methyl trisulfide ether, Diallytrisin, Diallytrisin is the main component that Bulbus Allii quintessence oil has physiologically active.
By a large amount of scientific experimentations and clinical experiment, modern medicine man, biologist, medical scholar, confirm that Bulbus Allii quintessence oil has eight large effects:
1, antibacterial, sterilization, the effect of killing the virus.Garlic suppresses and killing action as the bacteriums such as staphylococcus, suis, meningitis bacterium, intestinal bacteria, Corynebacterium diphtheriae, dysentery bacterium, bordetella pertussis and common cold virus have various pathogens.
2, reducing blood-fat, anti-freezing, prevention of arterial sclerosis, prevention and therapy cardiovascular and cerebrovascular diseases.Alkyl disulfide in garlic, alliin and allicin can reduce the content of cholesterol, triglyceride and low-density lipoprotein in blood, thus make blood fat be tending towards normal.
3, hypoglycemic, reduce the outbreak of diabetes.This effect is the activity by strengthening enzyme in glucose metabolism, improves carbohydrate metabolism and the metabolism of impact fat.
4, liver is protected, function of tumor inhibition.Liver-protective effect is reached by the damage of anti-lipid peroxidation thing cell membrane structure.Garlic essential oil has blocking-up or suppresses the effect of chemical carcinogen induced tumor, suppresses animal transplanting tumor cell.
5, scavenging free radicals, improves immunity of organisms, anti-ageing, physical strength reinforcing.Garlic essential oil can strengthen cytophagous ability, anti-oxidant, the effect of enhancement of SOD, can scavenging free radicals, strengthening immunity.
6, lowering blood-fat and reducing weight function, by dissolved fat particle, promotes the decomposition of fat, reaches the effect of lowering blood-fat and reducing weight.
7, treat impotence, have research display garlic really to have the effect for the treatment of impotence.
8, improve carbohydrate metabolism, research confirms, eats the effect that garlic is improved normal people's glucose tolerance raw, also can promote the secretion of Regular Insulin simultaneously and increase histocyte to the producing level of glucose, thus reducing glucose level.
Because gelatin and glycerine solubleness are comparatively large, dissolution rate is fast; And calcium lactate and Bulbus Allii quintessence oil solubleness little, dissolution rate is slow, therefore gelatin and glycerine, calcium lactate and Bulbus Allii quintessence oil are configured gelatin-aqueous glycerin solution, calcium lactate-Bulbus Allii quintessence oil aqueous solution respectively, mix again, effectively can ensure the homogeneity of film forming matrix gelatin, make being blended in packing film of the present invention of uniform composition.
Calcium lactate molecule is present in film forming liquid and exists with the form of positively charged calcium ion and electronegative lactate ion, therefore, it is possible to increase the electrostatic attraction with the active substance in Bulbus Allii quintessence oil, thus greatly promote the dissolving of Bulbus Allii quintessence oil in film forming liquid.The fungistatic effect of Bulbus Allii quintessence oil, depends on active substance in its composition through bacterial cell membrane, enters in bacterial cell and plays a role.When composite membrane enters after in eater's body, composite membrane decomposes the calcium ion produced and has the effect destroying cytolemma formation calcium channel, facilitate Bulbus Allii quintessence oil active substance and enter cells play germicidal action by calcium channel, therefore calcium lactate effectively can strengthen the bacteriostatic action of Bulbus Allii quintessence oil.
Glycerine, i.e. glycerol are without the sweet clear and bright thick liquid of color and taste.Be applicable to the analysis of the aqueous solution, solvent, tolerance takes into account water pressure engine bradyseism liquid, tenderizer, antibiotic fermentation nutrition agent, siccative, lubricant, pharmaceutical industry, cosmetic formulations, organic synthesis, fluidizer.Can dissolve with any ratio with water, lower concentration glycerin solution can make lubricating oil and moisten skin.Glycerine, in film forming liquid, can be combined with gelatin molecule, plays the effect of fluidizer, increase form the hardness of film.
Beneficial effect of the present invention is: the antibacterial packing film of replenishing the calcium of edible of the present invention is biodegradable, tensile strength is high, good water permeability, uniform color, effectively can suppress the growth of food spoilage, and supplementing calcium element, without any side effects, solve the contaminate environment of existing food packaging film, easily cause the problems such as packaging food microbiological contamination corruption.
Accompanying drawing explanation
Fig. 1 is the antibacterial packing film result of use figure that replenishes the calcium of a kind of edible of the present invention
Accompanying drawing illustrates: 1, blank assay curve, 2, comparative example empirical curve, 3, embodiment 1 empirical curve, 4, embodiment 2 empirical curve, 5, embodiment 3 empirical curve
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below the specific embodiment of the present invention being described further, but not limiting protection scope of the present invention.
Embodiment 1:
Prepare the antibacterial packing film of replenishing the calcium of edible:
(1) film forming liquid is prepared: take 0.5000g gelatin and 0.2000g glycerine, be dissolved in 10ml deionized water, stir, be placed in 45 DEG C of water-baths, leave standstill swelling 25min.Separately take 0.0500g calcium lactate and 0.1000g Bulbus Allii quintessence oil, add 10ml deionized water and be made into calcium lactate-Bulbus Allii quintessence oil aqueous solution, added in the gelatin-aqueous glycerin solution dissolved with the ratio of 1:1.
(2) homogeneous: use the film forming liquid of clarifixator to step (1) to carry out homogeneous, homogenizing temperature is 47 DEG C, and homogenization pressure is 20MPa, and the homogeneous time is 13min.
(3) have children outside the state plan degassed: the film forming liquid after step (2) homogeneous is placed in Ultrasonic Cleaners, and temperature is 47 DEG C, and frequency is 40kHz, ultrasonic degas 15min.
(4) plastic film mulch: by the film forming liquid after ultrasonic degas in step (3), be poured on casting film-forming on flat formwork, and be placed in air dry oven, 40 DEG C of dryings 7 hours.
(5) film is taken off: utilize the instruments such as pocket knife carefully to be taken off by dried film in step (4).
The antibacterial packing film of replenishing the calcium of edible of the present invention is obtained by above step and material proportioning.
Embodiment 2:
Prepare the antibacterial packing film of replenishing the calcium of edible:
(1) film forming liquid is prepared: take 0.2000g gelatin and 0.0500g glycerine, be dissolved in 10ml deionized water, stir, be placed in 45 DEG C of water-baths, leave standstill swelling 20min.Separately take 0.0100g calcium lactate and 0.2000g Bulbus Allii quintessence oil, add 10ml deionized water and be made into calcium lactate-Bulbus Allii quintessence oil aqueous solution, added in the gelatin-aqueous glycerin solution dissolved with the ratio of 1:1.
(2) homogeneous: use the film forming liquid of clarifixator to step (1) to carry out homogeneous, homogenizing temperature is 45 DEG C, and homogenization pressure is 10MPa, and the homogeneous time is 10min.
(3) have children outside the state plan degassed: the film forming liquid after step (2) homogeneous is placed in Ultrasonic Cleaners, and temperature is 45 DEG C, and frequency is 40kHz, ultrasonic degas 10min.
(4) plastic film mulch: by the film forming liquid after ultrasonic degas in step (3), be poured on casting film-forming on flat formwork, and be placed in air dry oven, 40 DEG C of dryings 6 hours.
(5) film is taken off: utilize the instruments such as pocket knife carefully to be taken off by dried film in step (4).
The antibacterial packing film of replenishing the calcium of edible of the present invention is obtained by above step and material proportioning.
Embodiment 3:
Prepare the antibacterial packing film of replenishing the calcium of edible:
(1) film forming liquid is prepared: take 0.8000g gelatin and 0.5000g glycerine, be dissolved in 10ml deionized water, stir, be placed in 45 DEG C of water-baths, leave standstill swelling 30min.Separately take 0.5000g calcium lactate and 0.3000g Bulbus Allii quintessence oil, add 10ml deionized water and be made into calcium lactate-Bulbus Allii quintessence oil aqueous solution, added in the gelatin-aqueous glycerin solution dissolved with the ratio of 1:1.
(2) homogeneous: use the film forming liquid of clarifixator to step (1) to carry out homogeneous, homogenizing temperature is 50 DEG C, and homogenization pressure is 25MPa, and the homogeneous time is 15min.
(3) have children outside the state plan degassed: the film forming liquid after step (2) homogeneous is placed in Ultrasonic Cleaners, and temperature is 50 DEG C, and frequency is 40kHz, ultrasonic degas 20min.
(4) plastic film mulch: by the film forming liquid after ultrasonic degas in step (3), be poured on casting film-forming on flat formwork, and be placed in air dry oven, 40 DEG C of dryings 8 hours.
(5) film is taken off: utilize the instruments such as pocket knife carefully to be taken off by dried film in step (4).
The antibacterial packing film of replenishing the calcium of edible of the present invention is obtained by above step and material proportioning.
Comparative example:
Preparation comparative example packing film:
(1) prepare film forming liquid: take 0.5000g gelatin and 0.2000g glycerine, be dissolved in 10ml deionized water, stir, be placed in 45 DEG C of water-baths, leave standstill swelling.Separately take 0.0500g calcium lactate, add 10ml deionized water wiring solution-forming, added in the gelatin-aqueous glycerin solution dissolved with the ratio of 1:1.
(2) homogeneous: use the film forming liquid of clarifixator to step (1) to carry out homogeneous, homogenizing temperature is 47 DEG C, and homogenization pressure is 20MPa, and the homogeneous time is 13min.
(3) have children outside the state plan degassed: the film forming liquid after step (2) homogeneous is placed in Ultrasonic Cleaners, and temperature is 47 DEG C, and frequency is 40kHz, ultrasonic degas 15min.
(4) plastic film mulch: by the film forming liquid after ultrasonic degas in step (3), be poured on casting film-forming on flat formwork, and be placed in air dry oven, 40 DEG C of dryings 7 hours.
(5) film is taken off: utilize the instruments such as pocket knife carefully to be taken off by dried film in step (4).
The packing film comparative example not containing Bulbus Allii quintessence oil composition is obtained by above step and material proportioning.
By to above-described embodiment 1, embodiment 2, embodiment 3, comparative example carry out corresponding test specification the present invention all has excellent performance at physicals, anti-microbial property.
Test event comprises:
(1) the antibacterial packing film quantitative measurement of replenishing the calcium of edible.
According to GB13022-1991, adopt the tensile property of instrumental test composite membrane.
According to GB1037-70, plan cup method tester water vapour is adopted to steal coefficient.
Full-automatic colour examining colour-difference-metre is adopted to carry out the evaluation of composite membrane color and luster
The physicals of embodiment and comparative example is as shown in table 1:
The physicals synopsis of table 1 embodiment and comparative example
The each performance of the embodiment of the present invention is better than comparative example after tested.
(2) the antibacterial packing film germ resistance test of replenishing the calcium of edible
Preparing diameter is the membrane sample of 25mm
Conventional food spoilage organism: subtilis (Bacillussubtilis), streptococcus aureus (Staphylococcusaureas), Salmonellas (Salmonella), intestinal bacteria (Escherichiacoli) are biological culture presevation administrative center from University Of Science and Technology Of Tianjin, through LB culture medium culturing to logarithmic phase.Above-mentioned membrane sample and control film (diameter is 25 ± 5mm) are put into culture dish, cultivates 24 hours for 37 DEG C, observe and record inhibition zone size.The fungistatic effect of different concns Bulbus Allii quintessence oil film and comparative example is as shown in table 2:
The fungistatic effect contrast table of table 2 embodiment 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 |
Comparative example fungistatic effect is all better than from the known each embodiment fungistatic effect of numerical value contrast.
(3) application testing of the antibacterial packing film packed and cooled fresh meat of replenishing the calcium of edible
According to GB/T5009.44-2003, adopt semi-micro-sample distillation, fresh-keeping test is carried out to the fresh pork (storing at 4 DEG C) from supermarket.Take 10.0g and grind uniform meat sample, be placed in 100ml and take out 30min without the distilled water leaching of ammonia, continuous jolting, the sample leaching drawing liquid of 10% is made after filtration, add 2% boric acid solution and after 5-6 drips mixture indicator, use and absorb its leaching drawing liquid of container 2ml in the reaction chamber of distiller, add the sodium hydroxide solution 5ml of 1%, pass into steam and distill 5min, with the normal hydrochloric acid drop of 0.01mol/L surely to terminal (in hyacinthine).The change of the meat sample volatility alkali ammonia content that unpackaged, comparative example packaging (not containing the composite membrane of Bulbus Allii quintessence oil), the different concns gradient Bulbus Allii quintessence oil composite membrane embodiment of the 1st, 3,6,9 day are packed after using this kind of method to measure storage respectively.Calculate by following formula:
In formula: V
1: sample solution consumes the HCl standardized solution mL number of 0.01mol/L; V
2: blank solution consumes the HCl standardized solution mL number of 0.01mol/L; W: the weight (g) of sample; The HCl standardized solution of 14 1.0mol/L is equivalent to the mg number of ammonia.
Fig. 1 is the content situation of pork total volatile basic nitrogen in cold storage procedure of the gelatin-calcium lactate composite film packaging adding different concns Bulbus Allii quintessence oil.Wherein blank test curve 1 is pork TVB-N content change curve under natural frozen state of unpackaged packing film of the present invention.
As shown in Figure 1, the pork of Different Package state is in cold storage procedure, and along with the prolongation of time, the content of its total volatile basic nitrogen raises all gradually.Wherein the content increase of the total volatile basic nitrogen of unpacked pork sample is the most remarkable, and along with the increase of distiller's wort content in composite membrane, the content increasing degree of its total volatile basic nitrogen reduces gradually.This result shows that the gelatin-calcium lactate composite membrane of interpolation Bulbus Allii quintessence oil of the present invention can delay the corruption of meat, has well fresh-keeping, extends the function of packaging product shelf phase.
Packing film of the present invention is described by specific embodiment.Those skilled in the art can use for reference the links such as content appropriate change product slate of the present invention, processing parameter and realize other object corresponding, its relevant change does not all depart from content of the present invention, all similar replacements and change will become apparent to those skilled in the art that and be all deemed to be included within scope of the present invention.
Claims (10)
1. the antibacterial packing film of replenishing the calcium of edible, is characterized in that, obtain as follows:
(1) film forming liquid is prepared: preparation weight/volume is respectively the gelatin-aqueous glycerin solution of 2%-8% and 0.5%-5%, stirs, is placed in 45 DEG C of water-baths, leaves standstill swelling 20-30min; Another preparation weight/volume is respectively the calcium lactate-Bulbus Allii quintessence oil aqueous solution of 0.1%-5% and 1% ~ 3%, is added in the gelatin-aqueous glycerin solution dissolved, obtained film forming liquid;
(2) homogeneous: homogeneous is carried out to the film forming liquid of step (1), homogenizing temperature is 45 DEG C ~ 50 DEG C, and homogenization pressure is 10 ~ 25MPa, and the homogeneous time is 10-15min;
(3) have children outside the state plan degassed: the film forming liquid after step (2) homogeneous is carried out ultrasonic degas, and temperature is 45 DEG C ~ 50 DEG C, and frequency is 40kHz, ultrasonic degas 10 ~ 20min;
(4) plastic film mulch: by the film forming liquid after ultrasonic degas in step (3), be poured on casting film-forming on flat formwork, and be placed in loft drier, 40 DEG C of dryings 6 ~ 8 hours;
(5) film is taken off: taken off by dried film in step (4).
2. the antibacterial packing film of replenishing the calcium of a kind of edible according to claim 1, is characterized in that, the volume ratio of the described gelatin-aqueous glycerin solution of step (1) and calcium lactate-Bulbus Allii quintessence oil aqueous solution is 1:1.
3. the antibacterial packing film of replenishing the calcium of a kind of edible according to claim 1, is characterized in that, step (1) described calcium lactate-Bulbus Allii quintessence oil aqueous solution needs to carry out ultrasonic dissolution after adding calcium lactate and Bulbus Allii quintessence oil.
4. the antibacterial packing film of replenishing the calcium of a kind of edible according to claim 1, is characterized in that, the described each substance dissolves of step (1) uses deionized water.
5. the antibacterial packing film of replenishing the calcium of a kind of edible according to claim 1, is characterized in that, the described homogenizing process of step (2) adopts clarifixator to carry out.
6. the antibacterial packing film of replenishing the calcium of a kind of edible according to claim 1, is characterized in that, the described ultrasonic degas process of step (3) adopts Ultrasonic Cleaners to carry out.
7. the antibacterial packing film of replenishing the calcium of a kind of edible according to claim 1, is characterized in that, step (4) described loft drier is air dry oven.
8. the antibacterial packing film of replenishing the calcium of edible according to claim 1, is characterized in that, the antibacterial packing film thickness of replenishing the calcium of described edible is 0.080mm ~ 0.110mm, and tensile strength is 5.75 ~ 21.88Mpa, and water-permeable is 30.12% ~ 38.93%.
9. the preparation method of the antibacterial packing film of replenishing the calcium of edible according to claim 1, it is characterized in that, preparation process is:
(1) film forming liquid is prepared: preparation weight/volume is respectively the gelatin-aqueous glycerin solution of 2%-8% and 0.5%-5%, stirs, is placed in 45 DEG C of water-baths, leaves standstill swelling 20-30min; Another preparation weight/volume is respectively the calcium lactate-Bulbus Allii quintessence oil aqueous solution of 0.1%-5% and 1% ~ 3%, is added in the gelatin-aqueous glycerin solution dissolved, obtained film forming liquid;
(2) homogeneous: homogeneous is carried out to the film forming liquid of step (1), homogenizing temperature is 45 DEG C ~ 50 DEG C, and homogenization pressure is 10 ~ 25MPa, and the homogeneous time is 10-15min;
(3) have children outside the state plan degassed: the film forming liquid after step (2) homogeneous is carried out ultrasonic degas, and temperature is 45 DEG C ~ 50 DEG C, and frequency is 40kHz, ultrasonic degas 10 ~ 20min;
(4) plastic film mulch: by the film forming liquid after ultrasonic degas in step (3), be poured on casting film-forming on flat formwork, and be placed in loft drier, 40 DEG C of dryings 6 ~ 8 hours;
(5) film is taken off: taken off by dried film in step (4).
10. the antibacterial packing film of replenishing the calcium of edible according to claim 5, is characterized in that, the antibacterial packing film thickness of replenishing the calcium of described edible is 0.080mm ~ 0.110mm, and tensile strength is 5.75 ~ 21.88Mpa, and water-permeable is 30.12% ~ 38.93%.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275828A (en) * | 2016-08-08 | 2017-01-04 | 惠州学院 | A kind of packaging material for food and application thereof easily |
| 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 |
| CN106279730A (en) * | 2016-08-08 | 2017-01-04 | 惠州学院 | A kind of raw meat preservative film and using method thereof |
| CN107759838A (en) * | 2017-11-02 | 2018-03-06 | 广西吉朋投资有限公司 | A kind of meat products edible freshness-keeping thin coat |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275828A (en) * | 2016-08-08 | 2017-01-04 | 惠州学院 | A kind of packaging material for food and application thereof easily |
| 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 |
| CN106279730A (en) * | 2016-08-08 | 2017-01-04 | 惠州学院 | A kind of raw meat preservative film and using method thereof |
| CN107759838A (en) * | 2017-11-02 | 2018-03-06 | 广西吉朋投资有限公司 | A kind of meat products edible freshness-keeping thin coat |
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| Publication number | Publication date |
|---|---|
| CN105199401B (en) | 2017-12-26 |
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