CN107200871A - A kind of antimicrobial preservative film and preparation method thereof - Google Patents
A kind of antimicrobial preservative film and preparation method thereof Download PDFInfo
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- CN107200871A CN107200871A CN201710364222.5A CN201710364222A CN107200871A CN 107200871 A CN107200871 A CN 107200871A CN 201710364222 A CN201710364222 A CN 201710364222A CN 107200871 A CN107200871 A CN 107200871A
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- antimicrobial preservative
- chitosan
- sodium alginate
- preservative film
- film
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides a kind of antimicrobial preservative film and preparation method thereof, the raw material of the antimicrobial preservative film includes：Chitosan, glycerine, nano titanium oxide, microcrystalline cellulose, sodium alginate, sodium citrate.Its preparation method is first to add to chitosan in aqueous acetic acid, heating stirring, then adds glycerine, nano titanium oxide, disperses, obtains chitosan film liquid；Microcrystalline cellulose, sodium alginate, sodium citrate are added in water again, heating stirring, obtain sodium alginate film liquid；Then gained sodium alginate film liquid is added in chitosan film liquid, disperseed, gained is mixed into film liquid casting film-forming after standing, placed into curing agent and cleaned after immersion with clear water, produced.The present invention adds nano titanium oxide in chitosan solution, and adds microcrystalline cellulose and sodium alginate, has been made with good wet mechanical intensity and wide spectrum, the antimicrobial preservative film of potent, lasting bacteriostasis property.
Description
Technical field
The invention belongs to fresh food field of packaging material, and in particular to a kind of antimicrobial preservative film and its preparation side
Method.
Background technology
With the food-safe great attention of people and demand, the importance of Modern food package material is increasingly highlighted.
The exploitation of fresh food fresh-keeping package technology, innovation for meet modern food consume provide may and feasibility, be also agricultural product
Post-harvest fresh-keeping industrialization and steam grade ensure that increment provides broad space.Fresh food industry to the demand of packaging material by
Gradually in safe and environment-friendly, healthy and high efficiency.
The growth and breeding of microorganism is not only the major reason for causing product to rot, and part microorganism can also be right
Human body causes very big harm.During especially with preservative film packaging fruits and vegetables etc., because package interior air circulation is poor, environmental wet
Degree is big, is very easy to cause the microbial growth of package interior, and packaged fruits and vegetables are still a biologic artifact,
The metabolic activities such as respiration are carried out, are influenceed easily to rot by microorganism.So, using with antibacterial functions
Preservative film prevent product by microorganism pollution, Shelf-life just seems extremely important
The content of the invention
The technical problem of solution：It is an object of the invention to provide a kind of antimicrobial preservative film and preparation method thereof.
Technical scheme：A kind of antimicrobial preservative film, raw material includes in parts by weight：2-7 parts of chitosan, 0.5-1 parts of glycerine, receives
0.5-1 parts of titanium dioxide of rice, 0.6-1.2 parts of microcrystalline cellulose, 0.5-0.8 parts of sodium alginate, 0.2-0.6 parts of sodium citrate.
The nano titanium oxide is anatase crystal type titanium dioxide.
The particle diameter of the nano titanium oxide is 20-50nm.
The preparation method of above-mentioned antimicrobial preservative film, comprises the following steps：
Step 1, chitosan is added in aqueous acetic acid, heating stirring, then adds glycerine, nano titanium oxide, disperseed, obtain
To chitosan film liquid；
Step 2, microcrystalline cellulose, sodium alginate, sodium citrate are added in water, heating stirring, obtains sodium alginate film liquid；
Step 3, step 2 gained sodium alginate film liquid is added in step 1 gained chitosan film liquid, disperses, mixed after standing
Close film liquid；
Step 4, by mixing film liquid casting film-forming obtained by step 3, place into curing agent and cleaned after immersion with clear water, produced.
The concentration of aqueous acetic acid is 2-4v/v% in step 1.
The temperature of heating stirring is 45-55 DEG C in step 1.
The temperature of heating stirring is 50-65 DEG C in step 2.
Curing agent is 0.1M sodium hydrate aqueous solutions in step 4.
Beneficial effect：The present invention adds nano titanium oxide in chitosan solution, and adds microcrystalline cellulose and sea
Mosanom, has been made with good wet mechanical intensity and wide spectrum, the antimicrobial preservative film of potent, lasting bacteriostasis property.
Embodiment
Embodiment 1
A kind of antimicrobial preservative film, raw material includes in parts by weight：2 parts of chitosan, 0.5 part of glycerine, 0.5 part of nano titanium oxide,
0.6 part of microcrystalline cellulose, 0.5 part of sodium alginate, 0.2 part of sodium citrate.
The nano titanium oxide is anatase crystal type titanium dioxide.
The particle diameter of the nano titanium oxide is 20nm.
The preparation method of above-mentioned antimicrobial preservative film, comprises the following steps：
Step 1, chitosan is added in aqueous acetic acid, heating stirring, then adds glycerine, nano titanium oxide, disperseed, obtain
To chitosan film liquid；
Step 2, microcrystalline cellulose, sodium alginate, sodium citrate are added in water, heating stirring, obtains sodium alginate film liquid；
Step 3, step 2 gained sodium alginate film liquid is added in step 1 gained chitosan film liquid, disperses, mixed after standing
Close film liquid；
Step 4, by mixing film liquid casting film-forming obtained by step 3, place into curing agent and cleaned after immersion with clear water, produced.
The concentration of aqueous acetic acid is 2v/v% in step 1.
The temperature of heating stirring is 45 DEG C in step 1.
The temperature of heating stirring is 50 DEG C in step 2.
Curing agent is 0.1M sodium hydrate aqueous solutions in step 4.
The dry state tensile strength of gained antimicrobial preservative film is 62.35Mpa, and hygrometric state tensile strength is 18.9Mpa, and water-resistance is
27.98；The antibiotic rate of Escherichia coli and staphylococcus aureus is still up to respectively after 48h is contacted with bacterium solution 97.2% and
95.8%.Can be still only few after 12 days under refrigerated conditions with still only a small number of rotten spots after 5 days at normal temperatures to preserve strawberry
Number corruption spot.
Embodiment 2
A kind of antimicrobial preservative film, raw material includes in parts by weight：4 parts of chitosan, 0.7 part of glycerine, 0.6 part of nano titanium oxide,
0.7 part of microcrystalline cellulose, 0.7 part of sodium alginate, 0.3 part of sodium citrate.
The nano titanium oxide is anatase crystal type titanium dioxide.
The particle diameter of the nano titanium oxide is 30nm.
The preparation method of above-mentioned antimicrobial preservative film, comprises the following steps：
Step 1, chitosan is added in aqueous acetic acid, heating stirring, then adds glycerine, nano titanium oxide, disperseed, obtain
To chitosan film liquid；
Step 2, microcrystalline cellulose, sodium alginate, sodium citrate are added in water, heating stirring, obtains sodium alginate film liquid；
Step 3, step 2 gained sodium alginate film liquid is added in step 1 gained chitosan film liquid, disperses, mixed after standing
Close film liquid；
Step 4, by mixing film liquid casting film-forming obtained by step 3, place into curing agent and cleaned after immersion with clear water, produced.
The concentration of aqueous acetic acid is 3v/v% in step 1.
The temperature of heating stirring is 50 DEG C in step 1.
The temperature of heating stirring is 55 DEG C in step 2.
Curing agent is 0.1M sodium hydrate aqueous solutions in step 4.
The dry state tensile strength of gained antimicrobial preservative film is 65.71Mpa, and hygrometric state tensile strength is 19.2Mpa, and water-resistance is
29.87；The antibiotic rate of Escherichia coli and staphylococcus aureus is still up to respectively after 48h is contacted with bacterium solution 98.1% and
96.2%.Can be still only few after 12 days under refrigerated conditions with still only a small number of rotten spots after 5 days at normal temperatures to preserve strawberry
Number corruption spot.
Embodiment 3
A kind of antimicrobial preservative film, raw material includes in parts by weight：5 parts of chitosan, 0.8 part of glycerine, 0.7 part of nano titanium oxide,
0.9 part of microcrystalline cellulose, 0.7 part of sodium alginate, 0.5 part of sodium citrate.
The nano titanium oxide is anatase crystal type titanium dioxide.
The particle diameter of the nano titanium oxide is 40nm.
The preparation method of above-mentioned antimicrobial preservative film, comprises the following steps：
Step 1, chitosan is added in aqueous acetic acid, heating stirring, then adds glycerine, nano titanium oxide, disperseed, obtain
To chitosan film liquid；
Step 2, microcrystalline cellulose, sodium alginate, sodium citrate are added in water, heating stirring, obtains sodium alginate film liquid；
Step 3, step 2 gained sodium alginate film liquid is added in step 1 gained chitosan film liquid, disperses, mixed after standing
Close film liquid；
Step 4, by mixing film liquid casting film-forming obtained by step 3, place into curing agent and cleaned after immersion with clear water, produced.
The concentration of aqueous acetic acid is 3v/v% in step 1.
The temperature of heating stirring is 50 DEG C in step 1.
The temperature of heating stirring is 60 DEG C in step 2.
Curing agent is 0.1M sodium hydrate aqueous solutions in step 4.
The dry state tensile strength of gained antimicrobial preservative film is 64.65Mpa, and hygrometric state tensile strength is 19.1Mpa, and water-resistance is
28.92；The antibiotic rate of Escherichia coli and staphylococcus aureus is still up to respectively after 48h is contacted with bacterium solution 96.8% and
94.9%.Can be still only few after 12 days under refrigerated conditions with still only a small number of rotten spots after 5 days at normal temperatures to preserve strawberry
Number corruption spot.
Embodiment 4
A kind of antimicrobial preservative film, raw material includes in parts by weight：7 parts of chitosan, 1 part of glycerine, 1 part of nano titanium oxide, crystallite
1.2 parts of cellulose, 0.8 part of sodium alginate, 0.6 part of sodium citrate.
The nano titanium oxide is anatase crystal type titanium dioxide.
The particle diameter of the nano titanium oxide is 50nm.
The preparation method of above-mentioned antimicrobial preservative film, comprises the following steps：
Step 1, chitosan is added in aqueous acetic acid, heating stirring, then adds glycerine, nano titanium oxide, disperseed, obtain
To chitosan film liquid；
Step 2, microcrystalline cellulose, sodium alginate, sodium citrate are added in water, heating stirring, obtains sodium alginate film liquid；
Step 3, step 2 gained sodium alginate film liquid is added in step 1 gained chitosan film liquid, disperses, mixed after standing
Close film liquid；
Step 4, by mixing film liquid casting film-forming obtained by step 3, place into curing agent and cleaned after immersion with clear water, produced.
The concentration of aqueous acetic acid is 4v/v% in step 1.
The temperature of heating stirring is 55 DEG C in step 1.
The temperature of heating stirring is 65 DEG C in step 2.
Curing agent is 0.1M sodium hydrate aqueous solutions in step 4.
The dry state tensile strength of gained antimicrobial preservative film is 64.52Mpa, and hygrometric state tensile strength is 20.2Mpa, and water-resistance is
28.16；The antibiotic rate of Escherichia coli and staphylococcus aureus is still up to respectively after 48h is contacted with bacterium solution 96.9% and
95.1%.Can be still only few after 12 days under refrigerated conditions with still only a small number of rotten spots after 5 days at normal temperatures to preserve strawberry
Number corruption spot.
Claims (8)
1. a kind of antimicrobial preservative film, it is characterised in that：Raw material includes in parts by weight：2-7 parts of chitosan, 0.5-1 parts of glycerine, receives
0.5-1 parts of titanium dioxide of rice, 0.6-1.2 parts of microcrystalline cellulose, 0.5-0.8 parts of sodium alginate, 0.2-0.6 parts of sodium citrate.
2. antimicrobial preservative film according to claim 1, it is characterised in that：The nano titanium oxide is anatase crystal type dioxy
Change titanium.
3. antimicrobial preservative film according to claim 1, it is characterised in that：The particle diameter of the nano titanium oxide is 20-
50nm。
4. the preparation method of the antimicrobial preservative film described in claim 1, it is characterised in that：Comprise the following steps：
Step 1, chitosan is added in aqueous acetic acid, heating stirring, then adds glycerine, nano titanium oxide, disperseed, obtain
To chitosan film liquid；
Step 2, microcrystalline cellulose, sodium alginate, sodium citrate are added in water, heating stirring, obtains sodium alginate film liquid；
Step 3, step 2 gained sodium alginate film liquid is added in step 1 gained chitosan film liquid, disperses, mixed after standing
Close film liquid；
Step 4, by mixing film liquid casting film-forming obtained by step 3, place into curing agent and cleaned after immersion with clear water, produced.
5. the preparation method of antimicrobial preservative film according to claim 4, it is characterised in that：Aqueous acetic acid in step 1
Concentration is 2-4v/v%.
6. the preparation method of antimicrobial preservative film according to claim 4, it is characterised in that：The temperature of heating stirring in step 1
Spend for 45-55 DEG C.
7. the preparation method of antimicrobial preservative film according to claim 4, it is characterised in that：The temperature of heating stirring in step 2
Spend for 50-65 DEG C.
8. the preparation method of antimicrobial preservative film according to claim 4, it is characterised in that：Curing agent is 0.1M in step 4
Sodium hydrate aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364222.5A CN107200871A (en) | 2017-05-22 | 2017-05-22 | A kind of antimicrobial preservative film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364222.5A CN107200871A (en) | 2017-05-22 | 2017-05-22 | A kind of antimicrobial preservative film and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107200871A true CN107200871A (en) | 2017-09-26 |
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ID=59905954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710364222.5A Pending CN107200871A (en) | 2017-05-22 | 2017-05-22 | A kind of antimicrobial preservative film and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108384068A (en) * | 2018-04-16 | 2018-08-10 | 合肥聪亨新型建材科技有限公司 | A kind of fruit and vegetable preservative film special and preparation method thereof |
| CN108440794A (en) * | 2018-03-12 | 2018-08-24 | 华侨大学 | A kind of preparation method of chitosan nano fiber element nanometer titanium dioxide composite membrane |
| CN111557790A (en) * | 2020-05-16 | 2020-08-21 | 江苏德鲁克生物科技有限公司 | Antibacterial and disinfectant nanofiber medical dressing |
| CN114854100A (en) * | 2022-06-01 | 2022-08-05 | 安徽天添塑业有限公司 | Nano antibacterial preservative film and preparation process thereof |
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| WO2005004989A3 (en) * | 2003-07-01 | 2005-06-16 | Todd Maibach | Film comprising therapeutic agents |
| CN102504300A (en) * | 2011-09-29 | 2012-06-20 | 北京化工大学常州先进材料研究院 | Preparation of sodium alginate and chitosan composite polyelectrolyte cast film |
| CN103146036A (en) * | 2013-03-02 | 2013-06-12 | 福建农林大学 | High-strength and high-antibacterial property sodium alginate film for food packaging and preparation method thereof |
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2017
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005004989A3 (en) * | 2003-07-01 | 2005-06-16 | Todd Maibach | Film comprising therapeutic agents |
| CN102504300A (en) * | 2011-09-29 | 2012-06-20 | 北京化工大学常州先进材料研究院 | Preparation of sodium alginate and chitosan composite polyelectrolyte cast film |
| CN103146036A (en) * | 2013-03-02 | 2013-06-12 | 福建农林大学 | High-strength and high-antibacterial property sodium alginate film for food packaging and preparation method thereof |
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| 中国包装联合会: "《中国包装年鉴2004》", 30 June 2005, 中国物资出版社 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108440794A (en) * | 2018-03-12 | 2018-08-24 | 华侨大学 | A kind of preparation method of chitosan nano fiber element nanometer titanium dioxide composite membrane |
| CN108384068A (en) * | 2018-04-16 | 2018-08-10 | 合肥聪亨新型建材科技有限公司 | A kind of fruit and vegetable preservative film special and preparation method thereof |
| CN111557790A (en) * | 2020-05-16 | 2020-08-21 | 江苏德鲁克生物科技有限公司 | Antibacterial and disinfectant nanofiber medical dressing |
| CN114854100A (en) * | 2022-06-01 | 2022-08-05 | 安徽天添塑业有限公司 | Nano antibacterial preservative film and preparation process thereof |
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Application publication date: 20170926 |