CN103772752A - Fruit preservative film and preparation method thereof - Google Patents
Fruit preservative film and preparation method thereof Download PDFInfo
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- CN103772752A CN103772752A CN201410024225.0A CN201410024225A CN103772752A CN 103772752 A CN103772752 A CN 103772752A CN 201410024225 A CN201410024225 A CN 201410024225A CN 103772752 A CN103772752 A CN 103772752A
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Abstract
The invention discloses a fruit preservative film and a preparation method thereof. The fruit preservative film is composed of the following components in parts by mass: 2-5 parts of cellulose acetate, 4-6 parts of cellulose acetate propionate, 0.3-0.8 part of polyethylene glycol, 1.5-1.8 parts of glutaraldehyde, 0.2-0.4 part of silicon dioxide, 0.3-0.8 part of antibacterial zeolite and 80-90 parts of water. The preparation method comprises the following steps: dissolving the cellulose acetate and the cellulose acetate propionate into the water and heating to 80-90 DEG C; agitating until the mixture is completely dissolved; then adding polyethylene glycol, glutaraldehyde, silicon dioxide and antibacterial zeolite and agitating to obtain sticky sol; pouring the sol into a double-screw extruder; and extruding and plastifying, and carrying out film blowing. The surface of a thin film is wet and a water film is uniformly formed so as to prevent outer microorganisms from entering; an added bacteriostatic agent can be used for inhibiting the growth of the microorganisms so that the refreshing time of fruits and vegetables is prolonged and the preparation process is simple and feasible.
Description
Technical field
The invention belongs to field of packaging material, be specifically related to a kind of fruit freshness preserving film and preparation method thereof.
Background technology
Conventional fruit and vegetable preserving method mainly contains cold storing and fresh-keeping method, controlled atmosphere method, radiation preservation method and common preservative film fresh-keeping method etc.Wherein preservative film fresh-keeping method is that a kind of cost is lower, simple to operate, suitability wide, the fruits and vegetables storing and fresh-keeping method of stable performance, has good future develop.
But the component difference of fruit and vegetables is larger, fruit is mainly containing rich in sugar, water content is high, easily grow each bacterioid, and the respiration of fruit is stronger, moisture evaporation is fast, the preservative film that preservative film fresh-keeping method uses is at present fruit-vegetable plastic wrap mostly, both can on vegetables, use, also can on fruit, use, unsatisfactory for fruit freshness preserving effect.
Summary of the invention
The object of the invention is to provide a kind of fruit freshness preserving film and preparation method thereof, in film forming material preparation process, add fungistat and antifogging agent, the moisture aggegation that fruit respiration discharges is at film surface, can make film surface moistening evenly and form moisture film, thereby stop entering of external microbe, the fungistat adding can suppress microbial growth, thereby extends the freshness date of fruits and vegetables.
To achieve these goals, the technical solution used in the present invention is: a kind of fruit freshness preserving film, the massfraction of component and each component is as follows: 2 ~ 5 parts of cellulose acetates, 4 ~ 6 parts of cellulose acetate propionates, 0.3 ~ 0.8 part of polyoxyethylene glycol, 1.5 ~ 1.8 parts of glutaraldehyde, 0.2 ~ 0.4 part of silicon-dioxide, 0.3 ~ 0.8 part of antibacterial zeolite particles, 80 ~ 90 parts, water.
On described antibacterial zeolite particles, load has Ag
+or Zn
2+.
Zeolite is immersed in to 24 ~ 48h in the solution of Silver Nitrate or zinc nitrate, then rinses with hydrochloric acid, obtaining load has Ag
+or Zn
2+antibacterial zeolite particles.
Cellulose acetate, cellulose acetate propionate is soluble in water, be heated to 80 ~ 90 ℃, be stirred to completely and dissolve, then add polyoxyethylene glycol, glutaraldehyde, silicon-dioxide and antibacterial zeolite particles, stir the colloidal sol that obtains thickness, pour in twin screw extruder, extrude and plasticate, blown film.
Beneficial effect: the invention provides a kind of fruit freshness preserving film and preparation method thereof, in film forming material preparation process, add fungistat and antifogging agent, the moisture aggegation that fruit respiration discharges is at film surface, can make film surface moistening evenly and form moisture film, thereby stop entering of external microbe, the fungistat adding can suppress microbial growth, thereby extends the freshness date of fruits and vegetables, and preparation is simple.
Embodiment
Embodiment 1:
A kind of fruit freshness preserving film, the massfraction of component and each component is as follows: 2 parts of cellulose acetates, 6 parts of cellulose acetate propionates, 0.3 part of polyoxyethylene glycol, 1.8 parts of glutaraldehyde, 0.2 part of silicon-dioxide, 0.8 part of antibacterial zeolite particles, 80 parts, water.On antibacterial zeolite particles, load has Ag
+.Zeolite is immersed in to 24h in the solution of Silver Nitrate, then rinses with hydrochloric acid, obtaining load has Ag
+antibacterial zeolite particles.
Cellulose acetate, cellulose acetate propionate is soluble in water, be heated to 80 ℃, be stirred to completely and dissolve, then add polyoxyethylene glycol, glutaraldehyde, silicon-dioxide and antibacterial zeolite particles, stir the colloidal sol that obtains thickness, pour in twin screw extruder, extrude and plasticate, blown film.The temperature of extruding 1st～5th district is respectively 115 ℃, 135 ℃, 155 ℃, 175 ℃, 175 ℃, and head temperature is 155 ℃, and rotating speed is 20 r/ min.In film-blowing process, raw-material extruding pelletization temperature is 135 ℃, 155 ℃, 165 ℃, 160 ℃, and rotating speed is 20 r/ min; Blown film temperature is respectively 130 ℃, 150 ℃, 175 ℃, 170 ℃, and rotating speed is 35r/ min.
Embodiment 2:
A kind of fruit freshness preserving film, the massfraction of component and each component is as follows: 5 parts of cellulose acetates, 4 parts of cellulose acetate propionates, 0.8 part of polyoxyethylene glycol, 1.5 parts of glutaraldehyde, 0.4 part of silicon-dioxide, 0.3 part of antibacterial zeolite particles, 90 parts, water.On antibacterial zeolite particles, load has Zn
2+.Zeolite is immersed in to 24 ~ 48h in the solution of zinc nitrate, then rinses with hydrochloric acid, obtaining load has Zn
2+antibacterial zeolite particles.
Cellulose acetate, cellulose acetate propionate is soluble in water, be heated to 90 ℃, be stirred to completely and dissolve, then add polyoxyethylene glycol, glutaraldehyde, silicon-dioxide and antibacterial zeolite particles, stir the colloidal sol that obtains thickness, pour in twin screw extruder, extrude and plasticate, blown film.The temperature of extruding 1st～5th district is respectively 115 ℃, 135 ℃, 155 ℃, 175 ℃, 175 ℃, and head temperature is 155 ℃, and rotating speed is 20 r/ min.In film-blowing process, raw-material extruding pelletization temperature is 135 ℃, 155 ℃, 165 ℃, 160 ℃, and rotating speed is 20 r/ min; Blown film temperature is respectively 130 ℃, 150 ℃, 175 ℃, 170 ℃, and rotating speed is 35r/ min.
The fruit freshness preserving film of embodiment 1 ~ 2 preparation is in fruit freshness preserving performance test, fresh-keeping as example take banana, apple, orange and Hylocereus undatus, wrap up respectively the preservative film of embodiment 1 ~ 2 and contrast, observe corrupt situation every day, and whether film has aqueous vapor, contrast with commercially available common PE preservative film, result is as follows:
Claims (3)
1. a fruit freshness preserving film, is characterized in that the massfraction of component and each component is as follows: 2 ~ 5 parts of cellulose acetates, 4 ~ 6 parts of cellulose acetate propionates, 0.3 ~ 0.8 part of polyoxyethylene glycol, 1.5 ~ 1.8 parts of glutaraldehyde, 0.2 ~ 0.4 part of silicon-dioxide, 0.3 ~ 0.8 part of antibacterial zeolite particles, 80 ~ 90 parts, water.
2. a kind of fruit freshness preserving film according to claim 1, is characterized in that: on described antibacterial zeolite particles, load has Ag
+or Zn
2+.
3. the preparation method of a kind of fruit freshness preserving film described in claim 1 or 2, it is characterized in that: by soluble in water to cellulose acetate, cellulose acetate propionate, be heated to 80 ~ 90 ℃, be stirred to completely and dissolve, then add polyoxyethylene glycol, glutaraldehyde, silicon-dioxide and antibacterial zeolite particles, stir the colloidal sol that obtains thickness, pour in twin screw extruder, extrude and plasticate, blown film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024225.0A CN103772752B (en) | 2014-01-20 | 2014-01-20 | A kind of fruit freshness preserving film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410024225.0A CN103772752B (en) | 2014-01-20 | 2014-01-20 | A kind of fruit freshness preserving film and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103772752A true CN103772752A (en) | 2014-05-07 |
| CN103772752B CN103772752B (en) | 2016-04-06 |
Family
ID=50565553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410024225.0A Active CN103772752B (en) | 2014-01-20 | 2014-01-20 | A kind of fruit freshness preserving film and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103772752B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106279576A (en) * | 2016-10-14 | 2017-01-04 | 无锡三帝特种高分子材料有限公司 | A kind of food packaging citicall limited aluminium film |
| CN106819076A (en) * | 2016-12-27 | 2017-06-13 | 华中农业大学 | A kind of preparation method of the bacteriostasis, preservation plastics based on natural polysaccharide particle |
| CN110012936A (en) * | 2019-04-29 | 2019-07-16 | 河北燕瑢科技发展有限公司 | A kind of anti-corrosive fresh-keeping material and the preparation method and application thereof |
| WO2022234062A1 (en) * | 2021-05-07 | 2022-11-10 | Soremartec S.A. | Packaging material having anti-microbial properties |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045511A (en) * | 1989-03-15 | 1990-09-26 | 王英 | Fresh-maintaining agent with function membrance using natural drying method |
| CN1467245A (en) * | 2002-07-08 | 2004-01-14 | 北京崇高纳米科技有限公司 | Fruit and vegetable fresh-keeping plastic film and method for making the same |
| US20040156918A1 (en) * | 2001-11-02 | 2004-08-12 | Podhajny Richard M. | Anti-microbial packaging materials and methods for making the same |
| CN1563156A (en) * | 2004-03-25 | 2005-01-12 | 贵州工业大学 | Method for preparing antibiosis (coating) film |
| CN1965662A (en) * | 2006-11-15 | 2007-05-23 | 陈罘杲 | Nano fruits and vegetables preserving film and preparation process thereof |
-
2014
- 2014-01-20 CN CN201410024225.0A patent/CN103772752B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045511A (en) * | 1989-03-15 | 1990-09-26 | 王英 | Fresh-maintaining agent with function membrance using natural drying method |
| US20040156918A1 (en) * | 2001-11-02 | 2004-08-12 | Podhajny Richard M. | Anti-microbial packaging materials and methods for making the same |
| CN1467245A (en) * | 2002-07-08 | 2004-01-14 | 北京崇高纳米科技有限公司 | Fruit and vegetable fresh-keeping plastic film and method for making the same |
| CN1563156A (en) * | 2004-03-25 | 2005-01-12 | 贵州工业大学 | Method for preparing antibiosis (coating) film |
| CN1965662A (en) * | 2006-11-15 | 2007-05-23 | 陈罘杲 | Nano fruits and vegetables preserving film and preparation process thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106279576A (en) * | 2016-10-14 | 2017-01-04 | 无锡三帝特种高分子材料有限公司 | A kind of food packaging citicall limited aluminium film |
| CN106819076A (en) * | 2016-12-27 | 2017-06-13 | 华中农业大学 | A kind of preparation method of the bacteriostasis, preservation plastics based on natural polysaccharide particle |
| CN110012936A (en) * | 2019-04-29 | 2019-07-16 | 河北燕瑢科技发展有限公司 | A kind of anti-corrosive fresh-keeping material and the preparation method and application thereof |
| WO2022234062A1 (en) * | 2021-05-07 | 2022-11-10 | Soremartec S.A. | Packaging material having anti-microbial properties |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103772752B (en) | 2016-04-06 |
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| C14 | Grant of patent or utility model | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: The invention relates to a fruit fresh-keeping film and a preparation method thereof Effective date of registration: 20210726 Granted publication date: 20160406 Pledgee: Nantong Branch of China Postal Savings Bank Co.,Ltd. Pledgor: NANTONG TIANHE PACKING Co.,Ltd. Registration number: Y2021980006757 |
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