CN105542203A - Watermelon peel based edible packaging film and preparation method therefor - Google Patents
Watermelon peel based edible packaging film and preparation method therefor Download PDFInfo
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- CN105542203A CN105542203A CN201510965320.5A CN201510965320A CN105542203A CN 105542203 A CN105542203 A CN 105542203A CN 201510965320 A CN201510965320 A CN 201510965320A CN 105542203 A CN105542203 A CN 105542203A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/463—Edible packaging materials
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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
- C08J2397/00—Characterised by the use of lignin-containing materials
- C08J2397/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/08—Cellulose derivatives
- C08J2401/26—Cellulose ethers
- C08J2401/28—Alkyl ethers
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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
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/04—Alginic acid; Derivatives thereof
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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
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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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
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Preparation Of Fruits And Vegetables (AREA)
Abstract
The invention provides a preparation method for a watermelon peel based edible packaging film. The method comprises the following steps: (1) cleaning and dicing watermelon peel; (2) carrying out blanching treatment; (3) carrying out pulping treatment until the substance subjected to the pulping treatment is pasty, so as to obtain watermelon peel paste; (4) adding water, a thickener and a plasticizer into the watermelon peel paste obtained in the step (3), so as to obtain watermelon peel slurry, wherein the watermelon peel paste contains the ingredients in percentage by mass: 40-80% of the watermelon peel paste, 0.1-1% of the thickener, 0.05-0.50% of the plasticizer and the balance of the water, the thickener contains sodium alginate and/or sodium carboxymethyl cellulose, and the plasticizer contains sorbitol or glycerine; (5) carrying out homogenization treatment for 5-10 minutes at the treatment rate of 10,000-20,000r/min, and then, carrying out degassing treatment and standing, so as to obtain a shaped sizing material; and (6) carrying out casting and drying, and then, carrying out film uncovering, thereby obtaining the watermelon peel based edible packaging film. The invention also provides the packaging film prepared by the method.
Description
Technical field
The invention belongs to Food Engineering Development field, be specifically related to a kind of edible packing membrane based on Watermelon rind and preparation method thereof.
Background technology
In recent years, the safety relevant to food and environmental problem become increasingly conspicuous, and one of wherein main problem shows that the security of food product pack environmental protection treatment means in urgent need of strengthening and food raw material waste are urgently furtherd investigate.
Fruit is the daily required important foodstuffs of people, can provide multiple nutrients material and VITAMIN, significant to raising HUMAN HEALTH.Along with the continuous enhancing of Chinese national power and living standards of the people, fruit industry have also been obtained vigorous growth, and the processing enterprise that fruit is relevant continues to bring out.But because pericarp Chang Zuowei waste material abandons and easily rots, its environmental problem caused is very important.
Packaging material for food conventional mostly at present is synthetic material, there is certain or potential security risk.Therefore, discarded pericarp how is made to be utilized effectively and the safety issue that can solve packaging material for food is a problem demanding prompt solution.
So far as is known, prior art rarely has and utilizes pericarp to prepare food packaging film.Prepare in the research field of consumable film utilizing fruits and vegetables, mainly rest on and utilize fruits and vegetables extract as antiseptic-germicide, antioxidant etc., as " Antioxidantfilmsbasedoncross-linkedmethylcelluloseandnat iveChileanberryforfoodpackagingapplications "; Or utilize fruits and vegetables extract and other material to be cross-linked, as CN101712774A; Or only prepare edible film with pulp, as WO2013/192519A1.
The shortcoming of above-mentioned research contents is: 1, need extraction fruits and vegetables being carried out to some composition, technical sophistication, with high costs, is not suitable for the packaging of normal food; 2, carrying out except the extraction of some composition except needing to fruits and vegetables, also needing to be cross-linked with other material, acid, alkali reagent and organic solvent need be used time crosslinked, there is edible safety risk; 3, gained eat lepthymenia, do not possess considerable physical strength and barrier property, practical value is low.
In sum, this area needs the technology of preparing of the edible packing membrane that can overcome above-mentioned technical disadvantages badly.
Summary of the invention
For the shortcoming of prior art, the object of the present invention is to provide a kind of preparation method of the edible packing membrane based on Watermelon rind, the method overcome that prior art has with high costs, have edible safety risk and a low shortcoming of practicality, directly Watermelon rind can be obtained the edible packing membrane with considerable physical strength and barrier property as raw material by treatment process with low cost.The method comprises the steps:
1) Watermelon rind is cleaned and stripping and slicing;
2) blanching process is carried out to step 1) gains;
3) to step 2) gains carry out making beating process in stick with paste pureed, obtain Watermelon rind stick with paste mud;
4) in step 3) gained Watermelon rind paste mud, add water, thickening material and softening agent, obtain watermelon latex; By mass percentage, in described watermelon latex, Watermelon rind is stuck with paste mud and is accounted for 40 ~ 80%, and thickening material accounts for 0.1 ~ 1%, and softening agent accounts for 0.05 ~ 0.50%, and all the other are water; Described thickening material comprises sodium alginate and/or Xylo-Mucine; Described softening agent comprises sorbyl alcohol or glycerine;
5) carry out homogenization treatment to step 4) gains, homogenization treatment speed is 10000 ~ 20000r/min, and the treatment time is 5 ~ 10min; Then carry out degassed process and leave standstill, obtaining shaping slurry;
6), after curtain coating, drying are carried out to step 5) gains, then carry out taking off film, to obtain final product.
The present inventor, by groping for a long time to find, when utilizing Watermelon rind as raw material, and when adding very a small amount of thickening material and softening agent, just can prepare mechanical property and all good edible packing membrane of barrier property.As shown in the embodiment of the present invention, the tensile strength of gained packing film of the present invention reaches more than 12.34MPa, and break-draw rate reaches more than 14.78%, and folding endurance reaches more than 31 times; Meanwhile, gained packing film of the present invention also has good water vapour transmission coefficient and oxygen transmission coefficient.
China is the watermelon place of production maximum in the world, cultivated area is about 1,080,000 hectares, annual production is more than 5,000 ten thousand tons, except eating raw, watermelon is also processed to Pulp Citrulli juice, watermelon wine, watermelon vinegar, extracts watermelon seeds etc., but these production processes only make use of melon pulp and melon seeds, the Watermelon rind accounting for watermelon total amount 1/3 then major part is directly dropped as refuse treatment, and easy breed bacteria and mosquitos and flies, become large public hazards in daily time in especially midsummer.Watermelon rind except containing except the mineral elements such as the abundant nutritive substance such as robust fibre, pectin, polysaccharide, amino acid and VITAMIN and calcium, phosphorus, iron, also has the pharmaceutical uses such as clearing heat and detoxicating, anti-inflammatory, diuresis, step-down, Vitamin C be sick concurrently.
Because gained packing film of the present invention has good mechanical property and barrier property, it is applicable to the inner packaging material directly contacted with the content such as food, medicine, and this packing film both can be eaten together with content, also can natural degradation after abandoning, extend the range of application of this fruit/vegetable waste of Watermelon rind, improve its economic benefit, thus avoid the wasting of resources and environmental pollution not only for solving the problem of environmental pollution caused by Watermelon rind.Gained packing film of the present invention is emerald green, and color is good-looking, in food product pack, also have outward appearance advantage.
Preferably, in step 1), described Watermelon rind is the skin of ripe and fresh watermelon; When carrying out stripping and slicing, Watermelon rind is cut into the fritter of 1cm × 1cm.
Preferably, step 2) in, described blanching treating processes is: be in the sodium bicarbonate aqueous solution of 0.3% at massfraction, at 85 DEG C, process 2 ~ 3min.
Preferably, in step 3), described making beating treating processes is: utilize in hollander and beat 8 ~ 10min in room temperature.
Preferably, in step 4), also add antiseptic-germicide, described antiseptic-germicide accounts for the mass percent of watermelon latex not higher than 1.5%; Preferably, described antiseptic-germicide is isothymol.
Adding of antiseptic-germicide can make gained packing film have germ resistance, extends the shelf-lives of food.But it is worthy of note, the antiseptic-germicide that any one can be used for strengthening Food Shelf-life all can be applied to the present invention.Isothymol cited by the present invention is only the one of available antiseptic-germicide.
Preferably, in step 4), described Watermelon rind is stuck with paste mud and is accounted for 60% of watermelon latex mass percent; Described thickening material is the mixture of sodium alginate and Xylo-Mucine.
Preferably, described sodium alginate accounts for 0.2% of watermelon latex mass percent; Described Xylo-Mucine accounts for 0.2% of watermelon latex mass percent.
When the mixture that thickening material is sodium alginate and Xylo-Mucine, and sodium alginate accounts for 0.2% of watermelon latex mass percent, and when Xylo-Mucine accounts for 0.2% of watermelon latex mass percent, the mechanical property of gained packing film is best.
Preferably, in step 5), described degassed time, vacuum tightness is-0.09 ~-0.10MPa.
Preferably, in step 6), curtain coating and drying process are: be extended down on the glass film forming device of 20cm × 50cm by forming slurry stream, put into baking oven in 50 ~ 70 DEG C of dry 3-5 hour.
Another object of the present invention is to provide the edible packing membrane based on Watermelon rind prepared by aforesaid method.
Beneficial effect of the present invention:
1, the present invention makes full use of Watermelon rind, not only can avoid environmental pollution, can also utilize the edible pharmaceutical use of Watermelon rind fully simultaneously;
2, gained packing film mechanical property and barrier property are all excellent, applied range;
3, gained packing film of the present invention can possess excellent germ resistance, can improve the shelf-lives of food;
4, packing film preparation method of the present invention is simple, without the need to organic solvent and acid-base reagent.
Accompanying drawing explanation
Fig. 1 is gained packing film of the present invention.
Embodiment
Below by embodiment, the present invention is specifically described; what be necessary to herein means out is that following examples are just for being further detailed the present invention; limiting the scope of the invention can not be interpreted as; some nonessential improvement and adjustment that the person skilled in the art in this field makes according to foregoing invention content, still belong to protection scope of the present invention.
Embodiment 1
Fresh Watermelon rind tap water is washed away dirt, then with distilled water immersion cleaning, is cut into 1cm × 1cm fritter afterwards for subsequent use.Take 600g watermelon fritter, blanching 2-3min in 85 DEG C of solution containing 0.3% sodium bicarbonate, drains after cooling; The Watermelon rind slurry that Watermelon rind paste mud accounts for slurry gross weight 50% is configured to by adding 900mL distilled water after the 10-15min to paste pureed that pulls an oar under the Watermelon rind room temperature drained the water; Thickening material and softening agent are added in above-mentioned Watermelon rind slurry, thickening material is sodium alginate, accounts for 0.30% of slurry gross weight, and softening agent is glycerine, accounts for 0.35% of slurry gross weight; Gained mixed slurry is carried out homogeneous at normal temperatures and pressures, homogeneous speed 15000r/min, time 5min; Slurry after homogeneous is degassed under vacuum tightness is-0.09MPa ~-0.10MPa, and bubble is in the slurry dissolved in removing, then leaves standstill 1h, obtains shaping slurry; By the film forming device that forming slurry stream is extended down to, put into baking oven in 60 DEG C of dry 5h to release paper; Take off from namely obtaining Watermelon rind based edible packing film from film forming device surface, sealing is preserved.
Embodiment 2
Stick with paste mud except Watermelon rind and account for slurry gross weight 80%, thickening material is replaced with Xylo-Mucine, and it is 0.5% that Xylo-Mucine accounts for slurry gross weight, and softening agent is replaced with sorbyl alcohol, and it is outside 0.4% that sorbyl alcohol accounts for slurry gross weight, and all the other are consistent with embodiment 1.
Embodiment 3
Stick with paste mud except Watermelon rind and account for slurry gross weight 60%, thickening material is replaced with the mixture of Xylo-Mucine and sodium alginate, sodium alginate accounts for 0.2% of slurry gross weight, it is 0.2% that Xylo-Mucine accounts for slurry gross weight, the add-on of glycerine being adjusted to and accounting for slurry gross weight is outside 0.3%, and all the other are consistent with embodiment 1.
Embodiment 4
Except also adding isothymol, isothymol account for slurry gross weight 1.5% outside, all the other are consistent with embodiment 3.
Experimental example
Carry out performance measurement to embodiment 1-3 gained packing film, measurement result is in table 1.Tensile strength and elongation at break are pressed GB/T1040.3-2006 and are measured; Folding endurance is pressed GB/T2679.5-1995 and is measured; Water vapour permeability is pressed GB/T16928-1997 and is measured; Oxygen transmission rate is pressed GB/T1038-2000 and is measured; Anti-microbial property is pressed inhibition zone method and is measured.
Table 1
Carry out bacteriostasis property mensuration to embodiment 4, antibacterial bandwidth is 4.6mm.
As can be seen from said determination result, packing film of the present invention has excellent physical and mechanical properties, and rate of perviousness particularly oxygen transmission rate is low.Packing film of the present invention can also obtain good fungistatic effect by adding fungistat, thus can ensure the quality of food, extends Food Shelf-life.
Claims (10)
1. based on a preparation method for the edible packing membrane of Watermelon rind, it is characterized in that, described method comprises the steps:
1) Watermelon rind is cleaned and stripping and slicing;
2) blanching process is carried out to step 1) gains;
3) to step 2) gains carry out making beating process in stick with paste pureed, obtain Watermelon rind stick with paste mud;
4) in step 3) gained Watermelon rind paste mud, add water, thickening material and softening agent, obtain watermelon latex; By mass percentage, in described watermelon latex, Watermelon rind is stuck with paste mud and is accounted for 40 ~ 80%, and thickening material accounts for 0.1 ~ 1%, and softening agent accounts for 0.05 ~ 0.50%, and all the other are water; Described thickening material comprises sodium alginate and/or Xylo-Mucine; Described softening agent comprises sorbyl alcohol or glycerine;
5) carry out homogenization treatment to step 4) gains, homogenization treatment speed is 10000 ~ 20000r/min, and the treatment time is 5 ~ 10min; Then carry out degassed process and leave standstill, obtaining shaping slurry;
6), after curtain coating, drying are carried out to step 5) gains, then carry out taking off film, to obtain final product.
2. method according to claim 1, is characterized in that, in step 1), described Watermelon rind is the skin of ripe and fresh watermelon; When carrying out stripping and slicing, Watermelon rind is cut into the fritter of 1cm × 1cm.
3. method according to claim 1, is characterized in that, step 2) in, described blanching treating processes is: be in the sodium bicarbonate aqueous solution of 0.3% at massfraction, at 85 DEG C, process 2 ~ 3min.
4. method according to claim 1, is characterized in that, in step 3), described making beating treating processes is: utilize in hollander and beat 8 ~ 10min in room temperature.
5. method according to claim 1, is characterized in that, in step 4), also adds antiseptic-germicide, and described antiseptic-germicide accounts for the mass percent of watermelon latex not higher than 1.5%; Preferably, described antiseptic-germicide is isothymol.
6. method according to claim 1, is characterized in that, in step 4), described Watermelon rind is stuck with paste mud and accounted for 60% of watermelon latex mass percent; Described thickening material is the mixture of sodium alginate and Xylo-Mucine.
7. method according to claim 6, is characterized in that, described sodium alginate accounts for 0.2% of watermelon latex mass percent; Described Xylo-Mucine accounts for 0.2% of watermelon latex mass percent.
8. method according to claim 1, is characterized in that, in step 5), described degassed time, vacuum tightness is-0.09 ~-0.10MPa.
9. method according to claim 1, is characterized in that, in step 6), curtain coating and drying process are: be extended down on the glass film forming device of 20cm × 50cm by forming slurry stream, puts into baking oven in 50 ~ 70 DEG C of dry 3-5 hour.
10. the edible packing membrane based on Watermelon rind prepared by any one of claim 1 ~ 9 method.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633998A (en) * | 2016-11-10 | 2017-05-10 | 陈建峰 | Method for preparing edible packaging film by utilizing celery fiber |
| CN108342095A (en) * | 2018-03-15 | 2018-07-31 | 四川农业大学 | A kind of edible packing membrane and its preparation method and application based on lemon peel |
| CN108690362A (en) * | 2018-06-25 | 2018-10-23 | 佛山实瑞先导材料研究院（普通合伙） | A kind of edibility pericarp wrapping paper and preparation method thereof |
| RU2784190C1 (en) * | 2021-12-30 | 2022-11-23 | Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" ФГАОУ ВО "ЮУрГУ (НИУ)" | Method for obtaining a polysaccharide composite material based on ultrasonic treatment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101712774A (en) * | 2009-11-02 | 2010-05-26 | 吉林大学 | Method for preparing modified watermelon peel fiber and cornstarch edible film |
| CN104928988A (en) * | 2015-05-28 | 2015-09-23 | 句容市茂源织造厂 | Natural preservative edible food packaging paper and preparation method thereof |
-
2015
- 2015-12-21 CN CN201510965320.5A patent/CN105542203B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101712774A (en) * | 2009-11-02 | 2010-05-26 | 吉林大学 | Method for preparing modified watermelon peel fiber and cornstarch edible film |
| CN104928988A (en) * | 2015-05-28 | 2015-09-23 | 句容市茂源织造厂 | Natural preservative edible food packaging paper and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633998A (en) * | 2016-11-10 | 2017-05-10 | 陈建峰 | Method for preparing edible packaging film by utilizing celery fiber |
| CN108342095A (en) * | 2018-03-15 | 2018-07-31 | 四川农业大学 | A kind of edible packing membrane and its preparation method and application based on lemon peel |
| CN108342095B (en) * | 2018-03-15 | 2021-01-26 | 四川农业大学 | Lemon peel-based edible packaging film and preparation method and application thereof |
| CN108690362A (en) * | 2018-06-25 | 2018-10-23 | 佛山实瑞先导材料研究院（普通合伙） | A kind of edibility pericarp wrapping paper and preparation method thereof |
| RU2784190C1 (en) * | 2021-12-30 | 2022-11-23 | Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" ФГАОУ ВО "ЮУрГУ (НИУ)" | Method for obtaining a polysaccharide composite material based on ultrasonic treatment |
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| CN105542203B (en) | 2018-02-06 |
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