CN104371146A - Degradable wheat starch-based antibacterial packaging film and preparation method thereof - Google Patents
Degradable wheat starch-based antibacterial packaging film and preparation method thereof Download PDFInfo
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- CN104371146A CN104371146A CN201410740145.5A CN201410740145A CN104371146A CN 104371146 A CN104371146 A CN 104371146A CN 201410740145 A CN201410740145 A CN 201410740145A CN 104371146 A CN104371146 A CN 104371146A
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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
Abstract
The invention belongs to the field of environment-friendly and degradable packaging materials, and particularly relates to a degradable wheat starch-based antibacterial packaging film and a preparation method thereof. The degradable wheat starch-based antibacterial packaging film mainly comprises wheat starch, food thickener, food antiseptics and food antioxidant. The preparation method includes firstly weighing the wheat starch, the food thickener, the food antiseptics and the food antioxidant according to a certain proportion, dissolving them into moderate distilled water sequentially, and uniformly stirring to obtain suspension; secondly, placing the suspension into a water bath to gelatinize; thirdly, degassing the gelatinized suspension in a vacuum chamber, and subjecting the degassed suspension to curtain coating on a glass panel to obtain a film; finally drying the film in a blast drying tank. The packaging film is made of natural food materials, features environment friendliness, degradability and antibiosis, and is widely applicable to internal food packaging, and environmental pollution of non-degradable packaging materials can be avoided.
Description
(1) technical field
The present invention relates to wheat starch base degradable anti-bacterial packaging film and preparation method thereof, belong to green environmental protection degradable wrapping material field.
(2) background technology
Socioeconomic high speed development makes people more and more focus on food safety and environmental safety.Natural, simple, low-carbon (LC) is the mode of life and widely popular acceptance that the mankind are positive.Current is petroleum base non-degradable plastics film for the main raw packed, and usage quantity is huge, causes serious white pollution, and these packing films add softening agent and various processing aid in process of production, constitute a threat to packaging article.
The decomposition temperature of native starch is lower than its melt temperature, and starch does not have thermoplasticity separately, can not film forming separately, needs to add softening agent and reduces its melt temperature.Conventional softening agent is small molecule polyol, as: glycerine, ethylene glycol, sorbyl alcohol etc., it is inner that it infiltrates starch molecule, destroy in starch molecule and intermolecular hydrogen bond, increase starch molecule chain flexibility, reduce melt temperature and the second-order transition temperature of starch, make it that there is thermoplasticity processing characteristics.The film forming properties of starch can be improved after adding softening agent, make its light transmission and flexible increase, but reduce tensile strength and increase water vapo r transmission ability.
That modern study concentrates on mostly is poor for starch basement membrane workability, mechanical strength is low, barrier properties for gases is poor and increase film material flavouring, protect the function such as look, anti-bacterial refreshing and launch research.
In the film-forming properties improvement of starch basement membrane, the representative properties-correcting agent added has: Xylo-Mucine and casein are with itself and derivative, shellac, guar gum, ethyl cellulose, wood sugar, sucrose, pectin, flax young oil, Viscotrol C, gelatin, glycerine, sorbyl alcohol etc., respectively have feature.
In mechanical strength improvement, in petrochemical industry family macromolecule synthetic materials, add degradable starch has a lot of report, and relevant result of study can be used as the reference of the application.But the toughener added in starch-based edible film has wheat gluten, pectin, CaCl
2, kraft fibers, polyvinylpyrrolidone, Xylo-Mucine, Mierocrystalline cellulose palpus, Propiram, sodium alginate, multilayer carbon nanotube, glycerine, nanoclay, whey-protein etc.
In barrier properties for gases improvement, add grease, aqueous vapor barrier that Vltra tears can increase starch film, but the transparency of film reduces, it is a lot of to add the report of various inorganic nanoparticles as clay, kaolin, wilkinite and silicon oxide, calcium carbonate.
In increase packing film function aspects, add banana flour, chitosan anti-bacteria, antibacterial with the raw fragrant imparting packing film of carrageenin, live
In increase packing film function aspects, add banana flour, chitosan anti-bacteria, give packing film with carrageenin life perfume antibacterial, look of living, the effect of raw perfume or generation probiotics.
Nanotechnology modification aspect, the properties-correcting agent added has tripoly phosphate sodium STPP-chitosan, Mierocrystalline cellulose, silicon-dioxide, nano-scale kaolin and clay, can improve the block-water performance of edible film and suppress microorganism growth.
More than study the modification all concentrating on starch film material, comprise the flavouring, function such as guarantor look, anti-bacterial refreshing etc. etc. of workability, raising film material mechanical strength and barrier properties for gases, increase film material; These method of modifying are the invention provides useful reference.But, in these various modification technology methods, usually add some chemosynthesis reagent to reach certain specific modification object, and these chemical additives to the harm of human body and environment, some needs the sufficiently long time to assess, in edible film, such as add the whether harmful just needs of nano size particles just can obtain effective conclusion for a long time, the U.S. and European Union are used in nano-sized materials has strict regulation with food and the direct contact material of medicine, and related food safety and environmental safety do not obtain enough attention.
Wheat starch is the natural macromolecular material integrating edibility, natural, the advantage such as degradable, abundance, low cost.Therefore, it is very necessary for developing wheat starch base degradable anti-bacterial packaging film.
(3) summary of the invention
To the present invention relates to natural green environment-friendly materials as raw material, prepare the method for wheat starch base degradable anti-bacterial packaging film.
Wheat starch base degradable anti-bacterial packaging film prepared by the present invention has good physical strength, transparency, heat sealability; And there is biodegradable, thus the environmental pollution that a large amount of non-degradable plastics cause can be avoided.
The preparation method of wheat starch base degradable anti-bacterial packaging film, the massfraction of each composition is: wheat starch 40.0 ~ 90.0%, food thickener 3.0 ~ 40.0%, food preservatives 0.1 ~ 20.0%, food antioxidant 0.3 ~ 25.0%.
The making step of wheat starch base degradable anti-bacterial packaging film is as follows:
1. the mixing of material: take yam starch, food thickener, food preservatives, food antioxidant amount to 15.0g, join in 100ml distilled water, stir, obtained suspension;
2. gelatinization: suspension is put into water-bath gelatinization, temperature is set as 70.0 ~ 90.0 DEG C, and mechanical stirring rate setting is 300 ~ 600rpm, and the time is set as 12 ~ 45min, obtained dextrin;
3. casting film-forming: dextrin being put into vacuum tightness is that the vacuum chamber of 0.01 ~ 0.1Pa is degassed, and the time is set as 30 ~ 60min, then casting film-forming on sheet glass;
4. dry: casting film-forming on sheet glass to be lain in a horizontal plane in air dry oven dry, temperature is set as 45.0 ~ 65.0 DEG C, and the time is set as 90 ~ 180min, takes out and is peeled off by film, final acquisition wheat starch base degradable anti-bacterial packaging film, antimicrobial packaging film thickness is 80 ~ 220 μm.
Described food thickener is made up of one or more in edible glycerol, Lalgine, sodium alginate, agar, carrageenin, Furcellaria gum, guar gum, pectin, gelatin, chitin or xanthan gum.
Described food preservatives is made up of one or more in nisin, Pulan polysaccharide, Monascin, lactobacillus, Chitosan-phospholipid complex, propolis, polylysine.
Described food antioxidant is made up of one or more in Lyeopene, curcumine and derivative thereof, natural VE, natural complex C, ginkgolic flavone glycoside, Yelkin TTS, gsh.
In addition to the aforementioned ingredients, add lubricant conventional in food routinely, as vegetables oil, fruit wax etc. simultaneously.
Wheat starch belongs to natural macromolecular material, has good film-forming properties.But simple Starch melts viscosity is larger, the present invention with the addition of Natural Food grade properties-correcting agent, environmental protection and there is edibility, it is made to infiltrate starch molecule inside, destroy in starch molecule and intermolecular hydrogen bond, increase starch molecule chain flexibility, reduce melt temperature and the second-order transition temperature of starch, make it that there is thermoplasticity processing characteristics, further increase the film forming properties of wheat starch.
The invention has the beneficial effects as follows that with Natural Food grade material be raw material, prepare a kind of starch-based degradable anti-bacterial packaging film not adding synthetic chemistry reagent, be a kind of multi-functional, degradable, to human body and environmentally friendly wrapping material; Food and medicine packaging can be widely used in, reduce food safety and environmental safety hidden danger.Meet modern humans and pursue mode of life that is simple, natural, environmental friendliness coordinated development, grade and the brand names image of packaged commodity can be improved, application prospect and wide market.
(4) embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
Wheat starch base degradable antimicrobial packaging film formulation, each composition quality mark is as follows: wheat starch 66.6%, food glycerine 19.6.0%, chitosan 8.5%, natural complex C 5.3%, and total weight is 15.0g; Add successively in 100ml distilled water, stir, obtained suspension; Suspension is put into water-bath gelatinization, temperature 75.0 DEG C, mechanical stirring 350rpm, time 20min, obtained dextrin; Dextrin is put into the degassed 35min of vacuum chamber that vacuum tightness is 0.01Pa, then casting film-forming on sheet glass; Lie in a horizontal plane in air dry oven dry again, temperature 55.0 DEG C, time 150min, take out and film is peeled off, thickness 136 μm.Its tensile strength is 16.30MPa, homogeneous, heat sealability and anti-microbial property good.
Embodiment 2
Wheat starch base degradable antimicrobial packaging film formulation, each composition quality mark is as follows: wheat starch 65.4%, gelatin 12.3%, Pulan polysaccharide 15.5%, curcumine 6.8%, and total weight is 15.0g; Add successively in 100ml distilled water, stir, obtained suspension; Suspension is put into water-bath gelatinization, temperature 80.0 DEG C, mechanical stirring 330rpm, time 15min, obtained dextrin; Dextrin is put into the degassed 40min of vacuum chamber that vacuum tightness is 0.01Pa, then casting film-forming on sheet glass; Lie in a horizontal plane in air dry oven dry again, temperature 60.0 DEG C, time 140min, take out and film is peeled off, thickness 156 μm.Its tensile strength is 18.40MPa, homogeneous, heat sealability and anti-microbial property good.
Embodiment 3
Wheat starch base degradable antimicrobial packaging film formulation, each composition quality mark is as follows: wheat starch 64.3%, sodium alginate 21.5%, propolis 6.7%, Yelkin TTS 7.5%, and total quality is 15.0g; Add successively in 100ml distilled water, stir, obtained suspension; Suspension is put into water-bath gelatinization, temperature 83.0 DEG C, mechanical stirring 400rpm, time 25min, obtained dextrin; Dextrin is put into the degassed 30min of vacuum chamber that vacuum tightness is 0.01Pa, then casting film-forming on sheet glass; Lie in a horizontal plane in air dry oven dry again, temperature 58.0 DEG C, time 160min, take out and film is peeled off, thickness 145 μm.Its tensile strength is 12.90MPa, homogeneous, heat sealability and anti-microbial property good.
Claims (4)
1. the preparation method of wheat starch base degradable anti-bacterial packaging film, is characterized in that the massfraction of each composition is: wheat starch 40.0 ~ 90.0%, food thickener 3.0 ~ 40.0%, food preservatives 0.1 ~ 20.0%, food antioxidant 0.3 ~ 25.0%;
The making step of wheat starch base degradable anti-bacterial packaging film is as follows:
1) mixing of material: take yam starch, food thickener, food preservatives, food antioxidant amount to 15.0g, join in 100ml distilled water, stir, obtained suspension;
2) gelatinization: suspension is put into water-bath gelatinization, temperature is set as 70.0 ~ 90.0 DEG C, and mechanical stirring rate setting is 300 ~ 600rpm, and the time is set as 12 ~ 45min, obtained dextrin;
3) casting film-forming: dextrin being put into vacuum tightness is that the vacuum chamber of 0.01 ~ 0.1Pa is degassed, and the time is set as 30 ~ 60min, then casting film-forming on sheet glass;
4) dry: casting film-forming on sheet glass to be lain in a horizontal plane in air dry oven dry, temperature is set as 45.0 ~ 65.0 DEG C, and the time is set as 90 ~ 180min, takes out and is peeled off by film, final acquisition wheat starch base degradable anti-bacterial packaging film, antimicrobial packaging film thickness is 80 ~ 220 μm.
2., according to the preparation method of the wheat starch base degradable anti-bacterial packaging film in claim 1, it is characterized in that described food thickener is made up of one or more in edible glycerol, Lalgine, sodium alginate, agar, carrageenin, Furcellaria gum, guar gum, pectin, gelatin, chitin or xanthan gum.
3., according to the preparation method of the wheat starch base degradable anti-bacterial packaging film in claim 1, it is characterized in that described food preservatives is made up of one or more in nisin, Pulan polysaccharide, Monascin, lactobacillus, Chitosan-phospholipid complex, propolis, polylysine.
4., according to the preparation method of the wheat starch base degradable anti-bacterial packaging film in claim 1, it is characterized in that described food antioxidant is made up of one or more in Lyeopene, curcumine and derivative thereof, natural VE, natural complex C, ginkgolic flavone glycoside, Yelkin TTS, gsh.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725672A (en) * | 2015-04-14 | 2015-06-24 | 苏州靖羽新材料有限公司 | Anti-oxidization environment-friendly packaging material for food and preparing method thereof |
| CN104861687A (en) * | 2015-06-04 | 2015-08-26 | 苏州市湘园特种精细化工有限公司 | Edible film and preparation method thereof |
| CN104877354A (en) * | 2015-05-25 | 2015-09-02 | 苏州市贝克生物科技有限公司 | Edible antibacterial film and preparation method thereof |
| CN105111477A (en) * | 2015-09-29 | 2015-12-02 | 浙江工业大学 | Method for preparing antibacterial edible films |
| CN105348614A (en) * | 2015-12-07 | 2016-02-24 | 北京印刷学院 | Controlled release active gas adjustment fresh-keeping packaging material and preparation method thereof |
| CN105727355A (en) * | 2016-02-29 | 2016-07-06 | 苏州市贝克生物科技有限公司 | Air-permeable water-proof hemostatic thin film and preparation method thereof |
| CN106633998A (en) * | 2016-11-10 | 2017-05-10 | 陈建峰 | Method for preparing edible packaging film by utilizing celery fiber |
| CN107011683A (en) * | 2017-04-17 | 2017-08-04 | 四川大学 | A kind of oxidation resistant edibility synthesized thin film of antibacterial and preparation method thereof |
| CN107722315A (en) * | 2017-10-27 | 2018-02-23 | 安徽师范大学 | A kind of preparation technology and detection method of colored starch film |
| CN110204792A (en) * | 2019-04-24 | 2019-09-06 | 天津科技大学 | A kind of preparation method of monascorubin edible film against sunshine |
| ES2788975A1 (en) * | 2020-07-08 | 2020-10-23 | Univ Santiago Compostela | COMPOSITION FOR BIOACTIVE PACKAGING (Machine-translation by Google Translate, not legally binding) |
| CN114805876A (en) * | 2022-05-13 | 2022-07-29 | 江南大学 | Preparation method of one-way water-blocking self-cleaning chitosan zein double-layer film |
| CN115286826A (en) * | 2022-08-25 | 2022-11-04 | 陕西科技大学 | Carboxymethyl starch/chitosan/PVP composite membrane and preparation method and application thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725672A (en) * | 2015-04-14 | 2015-06-24 | 苏州靖羽新材料有限公司 | Anti-oxidization environment-friendly packaging material for food and preparing method thereof |
| CN104877354A (en) * | 2015-05-25 | 2015-09-02 | 苏州市贝克生物科技有限公司 | Edible antibacterial film and preparation method thereof |
| CN104861687A (en) * | 2015-06-04 | 2015-08-26 | 苏州市湘园特种精细化工有限公司 | Edible film and preparation method thereof |
| CN105111477B (en) * | 2015-09-29 | 2018-05-08 | 浙江工业大学 | A kind of preparation method of antibiotic property edible film |
| CN105111477A (en) * | 2015-09-29 | 2015-12-02 | 浙江工业大学 | Method for preparing antibacterial edible films |
| CN105348614A (en) * | 2015-12-07 | 2016-02-24 | 北京印刷学院 | Controlled release active gas adjustment fresh-keeping packaging material and preparation method thereof |
| CN105727355A (en) * | 2016-02-29 | 2016-07-06 | 苏州市贝克生物科技有限公司 | Air-permeable water-proof hemostatic thin film and preparation method thereof |
| CN106633998A (en) * | 2016-11-10 | 2017-05-10 | 陈建峰 | Method for preparing edible packaging film by utilizing celery fiber |
| CN107011683A (en) * | 2017-04-17 | 2017-08-04 | 四川大学 | A kind of oxidation resistant edibility synthesized thin film of antibacterial and preparation method thereof |
| CN107722315A (en) * | 2017-10-27 | 2018-02-23 | 安徽师范大学 | A kind of preparation technology and detection method of colored starch film |
| CN110204792A (en) * | 2019-04-24 | 2019-09-06 | 天津科技大学 | A kind of preparation method of monascorubin edible film against sunshine |
| ES2788975A1 (en) * | 2020-07-08 | 2020-10-23 | Univ Santiago Compostela | COMPOSITION FOR BIOACTIVE PACKAGING (Machine-translation by Google Translate, not legally binding) |
| CN114805876A (en) * | 2022-05-13 | 2022-07-29 | 江南大学 | Preparation method of one-way water-blocking self-cleaning chitosan zein double-layer film |
| CN114805876B (en) * | 2022-05-13 | 2023-09-01 | 江南大学 | Preparation method of unidirectional water-blocking self-cleaning chitosan zein bilayer membrane |
| CN115286826A (en) * | 2022-08-25 | 2022-11-04 | 陕西科技大学 | Carboxymethyl starch/chitosan/PVP composite membrane and preparation method and application thereof |
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