CN103772755A - Pectin preservative film and preparation method thereof - Google Patents
Pectin preservative film and preparation method thereof Download PDFInfo
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- CN103772755A CN103772755A CN201410026040.3A CN201410026040A CN103772755A CN 103772755 A CN103772755 A CN 103772755A CN 201410026040 A CN201410026040 A CN 201410026040A CN 103772755 A CN103772755 A CN 103772755A
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- pectin
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Abstract
The invention discloses a pectin preservative film and a preparation method thereof. The pectin preservative film comprises the following components in parts by mass: 8-15 parts of pectin, 3-6 parts of polyvinyl alcohol, 0.5-0.8 part of adhesive, 0.8-1.3 parts of glycerol, 0.05-0.1 part of sodium hydroxide and 70-80 parts of water. The adhesive is gelatin or agar. The preparation method comprises the following steps: dissolving the pectin in water, adding the sodium hydroxide to regulate the pH value to 7-8, heating to 80-90 DEG C, stirring until the pectin is completely dissolved, adding the polyvinyl alcohol, adhesive and glycerol, stirring to obtain a viscous sol, pouring the sol into a double screw extruder, carrying out extrusion plastifying, and carrying out film blowing. The widely existent pectin used as the main film-forming material is degradable and can not cause environmental pollution; and the prepared preservative film has the advantages of uniform thickness, equivalent tensile strength and elongation at break to the commercially available common PE (polyethylene) film, and higher light transmittance, and can be used as a substitute of the common PE film.
Description
Technical field
The invention belongs to field of packaging material, be specifically related to a kind of pectin preservative film and preparation method thereof.
Background technology
Food fresh keeping membrane is as a kind of novel sanitation package packing supplies, and use is in the family day by day universal, and he has certain effect aspect preventing various dish taints of odour in refrigerator, maintenance dish freshness.In the course of processing of food fresh keeping membrane, in order to improve product application performance, often add multiple processing aid at present, comprise softening agent, stablizer, antiseptic-germicide, linking agent etc., the preservative film difficult degradation making, brings very large environment hidden danger.
The starting material that most wrapping material adopt are all petrochemical industry superpolymer, and its advantage is that production cost is low, the performance of product is good.But it is non-renewable that its shortcoming is starting material; after wrapping material use and discard; can not in environment, degrade quickly and effectively; if do not take special measure; can in environment, retain for a long time and can not be dissolved, ecotope is caused to huge pressure, development of new preservative film wrapping material substitute traditional petrochemical industry preservative film; can improve biodegradable performance, solve ecocrisis.In Fruit Peel, conventionally contain a large amount of pectin substances, and Fruit Peel is taken as offal treatment substantially, causes the significant wastage of pectin starting material, not only can turn waste into wealth also for contribution has been made in environmental protection if can be used.
Summary of the invention
The object of the invention is to provide a kind of pectin preservative film and preparation method thereof, and selecting the pectin extensively existing is film forming main raw, and degradable can not cause environmental pollution.
To achieve these goals, the technical solution used in the present invention is: a kind of pectin preservative film, and the mass fraction of component and each component is as follows: 8 ~ 15 parts of pectin, 3 ~ 6 parts of polyvinyl alcohol, 0.5 ~ 0.8 part of sizing agent, 0.8 ~ 1.3 part of glycerine, 0.05 ~ 0.1 part, sodium hydroxide, 70 ~ 80 parts, water.
Described sizing agent is gelatin or agar.
Described a kind of pectin preservative film preparation method, pectin is soluble in water, then add sodium hydroxide to regulate pH to 7 ~ 8, be heated to 80 ~ 90 ℃, be stirred to completely and dissolve, then add polyvinyl alcohol, sizing agent and glycerine to 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 pectin preservative film and preparation method thereof, selecting the pectin extensively existing is film forming main raw, degradable can not cause environmental pollution, the preservative film even thickness making, tensile strength and elongation at break are suitable with commercially available common PE film, transmittance improves, and can substitute use.
Embodiment
Embodiment 1:
A kind of pectin preservative film, the mass fraction of component and each component is as follows: 15 parts of pectin, 6 parts of polyvinyl alcohol, 0.8 part of sizing agent, 1.3 parts of glycerine, 0.1 part, sodium hydroxide, 80 parts, water.Described sizing agent is gelatin.
Pectin is soluble in water, then add sodium hydroxide to regulate pH to 7 ~ 8, be heated to 80 ~ 90 ℃, be stirred to completely and dissolve, then add polyvinyl alcohol, sizing agent and glycerine to 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 pectin preservative film, the mass fraction of component and each component is as follows: 8 parts of pectin, 3 parts of polyvinyl alcohol, 0.5 part of sizing agent, 0.8 part of glycerine, 0.05 part, sodium hydroxide, 70 parts, water.Described sizing agent is agar.
Pectin is soluble in water, then add sodium hydroxide to regulate pH to 7 ~ 8, be heated to 80 ~ 90 ℃, be stirred to completely and dissolve, then add polyvinyl alcohol, sizing agent and glycerine to 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 3:
A kind of pectin preservative film, the mass fraction of component and each component is as follows: 12 parts of pectin, 4 parts of polyvinyl alcohol, 0.7 part of sizing agent, 1 part of glycerine, 0.08 part, sodium hydroxide, 75 parts, water.Described sizing agent agar.
Pectin is soluble in water, then add sodium hydroxide to regulate pH to 7 ~ 8, be heated to 80 ~ 90 ℃, be stirred to completely and dissolve, then add polyvinyl alcohol, sizing agent and glycerine to 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 1 ~ 3 prepares the performance test that obtains food fresh keeping membrane, mechanical property: press GB/ T 13022-1991 and measure tensile strength and elongation at break.The mensuration of transmittance: press GB 2410-1980 and measure.Test result sees the following form
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Tensile strength/MPa | 25.9 | 23.5 | 30.8 |
| Extension at break degree/% | 420 | 410 | 480 |
| Transmittance/% | 88.4 | 90.3 | 95.8 |
Claims (3)
1. a pectin preservative film, is characterized in that the mass fraction of component and each component is as follows: 8 ~ 15 parts of pectin, 3 ~ 6 parts of polyvinyl alcohol, 0.5 ~ 0.8 part of sizing agent, 0.8 ~ 1.3 part of glycerine, 0.05 ~ 0.1 part, sodium hydroxide, 70 ~ 80 parts, water.
2. a kind of pectin preservative film according to claim 1, is characterized in that: described sizing agent is gelatin or agar.
3. a kind of pectin preservative film preparation method described in claim 1 or 2, it is characterized in that: pectin is soluble in water, then add sodium hydroxide to regulate pH to 7 ~ 8, be heated to 80 ~ 90 ℃, be stirred to completely and dissolve, then add polyvinyl alcohol, sizing agent and glycerine to 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 |
|---|---|---|---|
| CN201410026040.3A CN103772755A (en) | 2014-01-20 | 2014-01-20 | Pectin preservative film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410026040.3A CN103772755A (en) | 2014-01-20 | 2014-01-20 | Pectin preservative film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN103772755A true CN103772755A (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410026040.3A Withdrawn CN103772755A (en) | 2014-01-20 | 2014-01-20 | Pectin preservative film and preparation method thereof |
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| CN (1) | CN103772755A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107573624A (en) * | 2017-09-06 | 2018-01-12 | 丁玉琴 | A kind of polyethylene anti-mildew fresh-keeping film and preparation method thereof |
| CN107759815A (en) * | 2017-11-03 | 2018-03-06 | 河南工程学院 | A kind of obdurability pectin group compound film and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1585650A (en) * | 2001-11-16 | 2005-02-23 | 吉万奥丹股份有限公司 | Edible film |
| CN101491275A (en) * | 2009-02-20 | 2009-07-29 | 广东食品药品职业学院 | Edible food pectin preservative film and preparation method and use thereof |
| CN102187895A (en) * | 2010-03-16 | 2011-09-21 | 和国荣 | Milk protein based natural fruit-vegetable freshness-keeping coating agent and method for preparing same |
| CN102766280A (en) * | 2011-09-01 | 2012-11-07 | 上海宇飞金属制品有限公司 | Pectin preservative film, its raw material composition and preparation method thereof |
| CN102898668A (en) * | 2012-10-13 | 2013-01-30 | 华南理工大学 | Water soluble preservative film for fruits and vegetables and preparation method of preservative film |
| CN103271147A (en) * | 2013-04-15 | 2013-09-04 | 中国海洋大学 | Preparation method for edible composite membrane for blueberry fresh-keeping |
-
2014
- 2014-01-20 CN CN201410026040.3A patent/CN103772755A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1585650A (en) * | 2001-11-16 | 2005-02-23 | 吉万奥丹股份有限公司 | Edible film |
| CN101491275A (en) * | 2009-02-20 | 2009-07-29 | 广东食品药品职业学院 | Edible food pectin preservative film and preparation method and use thereof |
| CN102187895A (en) * | 2010-03-16 | 2011-09-21 | 和国荣 | Milk protein based natural fruit-vegetable freshness-keeping coating agent and method for preparing same |
| CN102766280A (en) * | 2011-09-01 | 2012-11-07 | 上海宇飞金属制品有限公司 | Pectin preservative film, its raw material composition and preparation method thereof |
| CN102898668A (en) * | 2012-10-13 | 2013-01-30 | 华南理工大学 | Water soluble preservative film for fruits and vegetables and preparation method of preservative film |
| CN103271147A (en) * | 2013-04-15 | 2013-09-04 | 中国海洋大学 | Preparation method for edible composite membrane for blueberry fresh-keeping |
Non-Patent Citations (1)
| Title |
|---|
| 钟秋平等: "壳聚糖木薯淀粉明胶复合可食抗菌保鲜膜性能的研究", 《食品科学》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107573624A (en) * | 2017-09-06 | 2018-01-12 | 丁玉琴 | A kind of polyethylene anti-mildew fresh-keeping film and preparation method thereof |
| CN107759815A (en) * | 2017-11-03 | 2018-03-06 | 河南工程学院 | A kind of obdurability pectin group compound film and preparation method thereof |
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Application publication date: 20140507 |