CN108384068A - A kind of fruit and vegetable preservative film special and preparation method thereof - Google Patents
A kind of fruit and vegetable preservative film special and preparation method thereof Download PDFInfo
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- CN108384068A CN108384068A CN201810336106.7A CN201810336106A CN108384068A CN 108384068 A CN108384068 A CN 108384068A CN 201810336106 A CN201810336106 A CN 201810336106A CN 108384068 A CN108384068 A CN 108384068A
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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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- 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
- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
- C08J2305/04—Alginic acid; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
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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
- 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
- C08J2405/08—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
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- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- 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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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/324—Alkali metal phosphate
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2201/011—Nanostructured additives
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- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/092—Polycarboxylic acids
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Abstract
The invention discloses a kind of fruit and vegetable preservative film specials, include the raw material of following parts by weight：Modified 10~20 parts of Wheat straw fiber, 8~17 parts of sodium alginate, 13~25 parts of sodium alginate, 15~30 parts of glycerine, 11~19 parts of lactic acid, 7~16 parts of attapulgite, 12~21 parts of chitosan, 6~10 parts of tealeaves, 2~4 parts of nano-titanium dioxide, 3~5 parts of sodium trimetaphosphate, 5~12 parts of modified starch, 1~3 part of citric acid, 2~4 parts of glycerin monostearate, 1~2 part of dispersant, 2~3 parts of emulsifier and appropriate amount of water.The fruit and vegetable preservative film special scientific formulation, rationally, fresh-keeping effect is excellent, has no toxic side effect, can voluntarily degrade, to oxygen, nitrogen, carbon dioxide etc. have superpower barrier property.
Description
Technical field
The invention belongs to fresh-keeping technical field of membrane, and in particular to a kind of fruit and vegetable preservative film special and preparation method thereof.
Background technology
Existing fresh-keeping most handled using chemical substance of some fruits and vegetables and realize the fresh-keeping of fruits and vegetables, so
It is easy the chemical substance for being used for handling in fruits and vegetables remained on surface and absorption, and influences the safety of fruits and vegetables and defends
Natural disposition.Existing some fruits and vegetables preservative film majorities used realize exhaling for fruits and vegetables using being punched on preservative film
It inhales, since hole is excessive, so causing the volatilization of fruits and vegetables moisture content too fast and dehydration is serious, so fresh-keeping and keeping-freshness storage is protected
The matter time is extremely short, and also because can be in direct contact air by hole, the oxygen effect being easy in by air accelerates curing
And it rots.
Invention content
The present invention provides a kind of fruit and vegetable preservative film specials and preparation method thereof, solve asking in background technology
Topic, the fruit and vegetable preservative film special scientific formulation, rationally, fresh-keeping effect is excellent, has no toxic side effect, can voluntarily degrade, right
Oxygen, nitrogen, carbon dioxide etc. have superpower barrier property.
It is of the existing technology in order to solve the problems, such as, it adopts the following technical scheme that：
A kind of fruit and vegetable preservative film special, includes the raw material of following parts by weight：Modified 10~20 parts of Wheat straw fiber, sodium alginate
8~17 parts, 13~25 parts of sodium alginate, 15~30 parts of glycerine, 11~19 parts of lactic acid, 7~16 parts of attapulgite, chitosan 12~
21 parts, 6~10 parts of tealeaves, 2~4 parts of nano-titanium dioxide, 3~5 parts of sodium trimetaphosphate, 5~12 parts of modified starch, citric acid 1
~3 parts, 2~4 parts of glycerin monostearate, 1~2 part of dispersant, 2~3 parts of emulsifier and appropriate amount of water；
The preparation method of the modified Wheat straw fiber is as follows：
By a concentration of 15% soaking with sodium hydroxide 1.5h of straw mass fraction, pretreatment temperature is 110 DEG C, then at 60 DEG C
Dewatered drying places into and wears into fiber in flour mill, 20~60 mesh particles is obtained after screening process, then in baking oven 110
Under DEG C temperature condition, be dried within 24 hours；It is last again that 60 parts of Wheat straw fibers, 4 parts of hard calcium acetates and 3 parts are nano oxidized
Ball mill is added in aluminium, stirs 15min in the case where rotating speed is 200r/min, obtains modified Wheat straw fiber.
Preferably, the fruit and vegetable preservative film special, includes the raw material of following parts by weight：Modified Wheat straw fiber 13~18
Part, 10~15 parts of sodium alginate, 16~22 parts of sodium alginate, 20~27 parts of glycerine, 12~16 parts of lactic acid, attapulgite 9~14
Part, is modified 15~19 parts of chitosan, 7~8 parts of tealeaves, 2.3~3.6 parts of nano-titanium dioxide, 3.5~4.2 parts of sodium trimetaphosphate
6~11 parts of starch, 1.6~2.4 parts of citric acid, 2.8~3.1 parts of glycerin monostearate, 1.3~1.9 parts of dispersant, emulsifier
2.1~2.8 parts and appropriate amount of water.
Preferably, the fruit and vegetable preservative film special, includes the raw material of following parts by weight：Modified 15 parts of Wheat straw fiber,
13 parts of sodium alginate, 18 parts of sodium alginate, 25 parts of glycerine, 14 parts of lactic acid, 10 parts of attapulgite, 17 parts of chitosan, tealeaves 7.6
Part, 3 parts of nano-titanium dioxide, 3.9 parts of sodium trimetaphosphate, 8 parts of modified starch, 2 parts of citric acid, glycerin monostearate 3 part, point
1.8 parts of powder, 2.7 parts of emulsifier and appropriate amount of water.
Preferably, the preparation method of the modified starch is as follows：
（1）By weight, by 24 parts of 100 parts of cornstarch, 10 parts of sodium tripolyphosphate, 8 parts of lignin, 5 parts of plant ash and water
It is sufficiently mixed uniformly；
（2）By step（1）Product dry to water content be 5~10%, be added Bulking tank after heated 3 hours at 140~160 DEG C,
Then it is added in extruder after cooling, dry, crushing and is gelatinized, expands through spiral heating, after dry, crushing, grind into powder
The modified starch can be obtained.
Preferably, the emulsifier is polyoxyethylene sorbitan monooleate.
Preferably, the dispersant is fatty acid.
A method of the fruit and vegetable preservative film special is prepared, is included the following steps：
（1）It is poly- that modified Wheat straw fiber, sodium alginate, sodium alginate, glycerine, lactic acid, attapulgite, shell are weighed by above-mentioned formula
Sugar, tealeaves, nano-titanium dioxide, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, dispersant, emulsifier
And appropriate amount of water；
（2）Attapulgite is put into Muffle furnace, 800 DEG C is warming up to and calcines 7 hours, be subsequently placed in ball mill and pulverize
End obtains calcining attapulgite powder；
（3）Tealeaves is placed in the distilled water of 15 times of its own weight, first soak at room temperature 1~2 hour is again heated to boiling, protects
Temperature is impregnated 2~3 hours, is then filtered, is obtained filtrate, is cooled to room temperature；
（4）Sodium alginate is dissolved in step（3）In the liquid of gained, it is poly- then to sequentially add sodium alginate, glycerine, lactic acid, shell
Sugar, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, are stirred so that mosanom, glycerine, lactic acid, shell
Glycan fully dissolves；
（5）Wheat straw fiber crushing and dispersant, emulsifier, nano-titanium dioxide and calcining attapulgite powder will be modified together
It is added to step（4）In the mixed liquor of gained, it is uniformly mixed using magnetic stirrer, then degassing process, must form a film molten
Liquid；
（6）Film forming solution is uniformly coated on carrier surface, it is dry at 40~50 DEG C after from carrier stripping film, institute is made
State fruit and vegetable preservative film special.
Preferably, the magnetic stirrer time is 1 hour.
Compared with prior art, the present invention it has the advantages that：
Fruit and vegetable preservative film special scientific formulation of the present invention, rationally, fresh-keeping effect is excellent, have no toxic side effect, can be voluntarily
Degradation has superpower barrier property to oxygen, nitrogen, carbon dioxide etc., specific as follows:
（1）Fruit and vegetable preservative film special of the present invention is using modified Wheat straw fiber, sodium alginate, sodium alginate, glycerine, breast
Acid, attapulgite, chitosan, tealeaves, nano-titanium dioxide, sodium trimetaphosphate, modified starch, citric acid, glycerol monostearate
Ester, dispersant, emulsifier are mutually acted synergistically between raw material as raw material, the preservative film prepared have it is superpower to oxygen,
The barrier properties such as nitrogen, carbon dioxide, so the fruits and vegetables after packaging can store without being aoxidized and ripe for a long time
It is rotten and addle；And the present invention penetrates the penetration that can keep very high to aqueous vapor, two-way with very high aqueous vapor
Ability is crossed, so the moisture content of fruits and vegetables had not only been can guarantee while fruits and vegetables surface dry but also can persistently maintain, it is long
The phase fruits and vegetables percentage of water loss of storage is very low, has accomplished real fresh-keeping and has guaranteed the quality；
（2）The present invention is using modified Wheat straw fiber, sodium alginate, sodium alginate, glycerine, lactic acid, attapulgite, chitosan, tea
Leaf, modified starch etc. are used as raw material, modified Wheat straw fiber, sodium alginate, sodium alginate, glycerine, lactic acid, attapulgite, shell poly-
Sugar, tealeaves, modified starch be can natural degradation material, the product prepared has no toxic side effect, can voluntarily degrade；
（3）The present invention is added to nano-titanium dioxide in the feed, and nano-titanium dioxide has bactericidal effect, preservative film is made to have
Certain bacteriostasis property, reduce edible mushroom in storage period due to infecting for microorganism caused by corruption.
Specific implementation mode
Present invention will be further explained below with reference to specific examples.These embodiments are merely to illustrate the present invention and do not have to
In limiting the scope of the invention.
Embodiment 1
The present embodiment is related to a kind of fruit and vegetable preservative film special, includes the raw material of following parts by weight：Modified 10 parts of Wheat straw fiber,
8 parts of sodium alginate, 15 parts of glycerine, 11 parts of lactic acid, 7 parts of attapulgite, 12 parts of chitosan, 6 parts of tealeaves, is received 13 parts of sodium alginate
2 parts of titanium dioxide of rice, 3 parts of sodium trimetaphosphate, 5 parts of modified starch, 1 part of citric acid, 2 parts of glycerin monostearate, dispersant 1
Part, 2 parts of emulsifier and appropriate amount of water；
The preparation method of the modified Wheat straw fiber is as follows：
By a concentration of 15% soaking with sodium hydroxide 1.5h of straw mass fraction, pretreatment temperature is 110 DEG C, then at 60 DEG C
Dewatered drying places into and wears into fiber in flour mill, 20~60 mesh particles is obtained after screening process, then in baking oven 110
Under DEG C temperature condition, be dried within 24 hours；It is last again that 60 parts of Wheat straw fibers, 4 parts of hard calcium acetates and 3 parts are nano oxidized
Ball mill is added in aluminium, stirs 15min in the case where rotating speed is 200r/min, obtains modified Wheat straw fiber.
Wherein, the preparation method of the modified starch is as follows：
（1）By weight, by 24 parts of 100 parts of cornstarch, 10 parts of sodium tripolyphosphate, 8 parts of lignin, 5 parts of plant ash and water
It is sufficiently mixed uniformly；
（2）By step（1）Product to dry to water content be 5%, heat 3 hours at 140 DEG C after Bulking tank is added, then cool down,
It is added in extruder after dry, crushing and is gelatinized, expands through spiral heating, after dry, crushing, grind into powder can obtain described
Modified starch.
Wherein, the emulsifier is polyoxyethylene sorbitan monooleate.
Wherein, the dispersant is fatty acid.
A method of the fruit and vegetable preservative film special is prepared, is included the following steps：
（1）It is poly- that modified Wheat straw fiber, sodium alginate, sodium alginate, glycerine, lactic acid, attapulgite, shell are weighed by above-mentioned formula
Sugar, tealeaves, nano-titanium dioxide, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, dispersant, emulsifier
And appropriate amount of water；
（2）Attapulgite is put into Muffle furnace, 800 DEG C is warming up to and calcines 7 hours, be subsequently placed in ball mill and pulverize
End obtains calcining attapulgite powder；
（3）Tealeaves is placed in the distilled water of 15 times of its own weight, first soak at room temperature 1 hour, is again heated to boiling, heat preservation leaching
Bubble 2 hours, then filters, obtains filtrate, be cooled to room temperature；
（4）Sodium alginate is dissolved in step（3）In the liquid of gained, it is poly- then to sequentially add sodium alginate, glycerine, lactic acid, shell
Sugar, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, are stirred so that mosanom, glycerine, lactic acid, shell
Glycan fully dissolves；
（5）Wheat straw fiber crushing and dispersant, emulsifier, nano-titanium dioxide and calcining attapulgite powder will be modified together
It is added to step（4）In the mixed liquor of gained, it is uniformly mixed using magnetic stirrer, then degassing process, must form a film molten
Liquid；
（6）Film forming solution is uniformly coated on carrier surface, it is dry at 40 DEG C after from carrier stripping film, the water is made
Fruit vegetable preservative film special.
Wherein, the magnetic stirrer time is 1 hour.
Embodiment 2
The present embodiment is related to a kind of fruit and vegetable preservative film special, includes the raw material of following parts by weight：Modified 20 parts of Wheat straw fiber,
17 parts of sodium alginate, 25 parts of sodium alginate, 30 parts of glycerine, 19 parts of lactic acid, 16 parts of attapulgite, 21 parts of chitosan, 10 parts of tealeaves,
4 parts of nano-titanium dioxide, 5 parts of sodium trimetaphosphate, 12 parts of modified starch, 3 parts of citric acid, 4 parts of glycerin monostearate, dispersant
2 parts, 3 parts of emulsifier and appropriate amount of water；
The preparation method of the modified Wheat straw fiber is as follows：
By a concentration of 15% soaking with sodium hydroxide 1.5h of straw mass fraction, pretreatment temperature is 110 DEG C, then at 60 DEG C
Dewatered drying places into and wears into fiber in flour mill, 20~60 mesh particles is obtained after screening process, then in baking oven 110
Under DEG C temperature condition, be dried within 24 hours；It is last again that 60 parts of Wheat straw fibers, 4 parts of hard calcium acetates and 3 parts are nano oxidized
Ball mill is added in aluminium, stirs 15min in the case where rotating speed is 200r/min, obtains modified Wheat straw fiber.
Wherein, the preparation method of the modified starch is as follows：
（1）By weight, by 24 parts of 100 parts of cornstarch, 10 parts of sodium tripolyphosphate, 8 parts of lignin, 5 parts of plant ash and water
It is sufficiently mixed uniformly；
（2）By step（1）Product dry to water content be 10%, be added Bulking tank after heated 3 hours at 160 DEG C, it is then cold
But it is added in extruder after, dry, crushing and is gelatinized, expands through spiral heating, after dry, crushing, grind into powder can obtain
The modified starch.
Wherein, the emulsifier is polyoxyethylene sorbitan monooleate.
Wherein, the dispersant is fatty acid.
A method of the fruit and vegetable preservative film special is prepared, is included the following steps：
（1）It is poly- that modified Wheat straw fiber, sodium alginate, sodium alginate, glycerine, lactic acid, attapulgite, shell are weighed by above-mentioned formula
Sugar, tealeaves, nano-titanium dioxide, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, dispersant, emulsifier
And appropriate amount of water；
（2）Attapulgite is put into Muffle furnace, 800 DEG C is warming up to and calcines 7 hours, be subsequently placed in ball mill and pulverize
End obtains calcining attapulgite powder；
（3）Tealeaves is placed in the distilled water of 15 times of its own weight, first soak at room temperature 2 hours, is again heated to boiling, heat preservation leaching
Bubble 3 hours, then filters, obtains filtrate, be cooled to room temperature；
（4）Sodium alginate is dissolved in step（3）In the liquid of gained, it is poly- then to sequentially add sodium alginate, glycerine, lactic acid, shell
Sugar, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, are stirred so that mosanom, glycerine, lactic acid, shell
Glycan fully dissolves；
（5）Wheat straw fiber crushing and dispersant, emulsifier, nano-titanium dioxide and calcining attapulgite powder will be modified together
It is added to step（4）In the mixed liquor of gained, it is uniformly mixed using magnetic stirrer, then degassing process, must form a film molten
Liquid；
（6）Film forming solution is uniformly coated on carrier surface, it is dry at 50 DEG C after from carrier stripping film, the water is made
Fruit vegetable preservative film special.
Wherein, the magnetic stirrer time is 1 hour.
Embodiment 3
The present embodiment is related to a kind of fruit and vegetable preservative film special, includes the raw material of following parts by weight：Modified 13 parts of Wheat straw fiber,
10 parts of sodium alginate, 20 parts of glycerine, 12 parts of lactic acid, 9 parts of attapulgite, 15 parts of chitosan, 7 parts of tealeaves, is received 16 parts of sodium alginate
Rice 2.3 parts of titanium dioxide, 3.5 parts of sodium trimetaphosphate, 6 parts of modified starch, 1.6 parts of citric acid, 2.8 parts of glycerin monostearate,
1.3 parts of dispersant, 2.1 parts of emulsifier and appropriate amount of water；
The preparation method of the modified Wheat straw fiber is as follows：
By a concentration of 15% soaking with sodium hydroxide 1.5h of straw mass fraction, pretreatment temperature is 110 DEG C, then at 60 DEG C
Dewatered drying places into and wears into fiber in flour mill, 20~60 mesh particles is obtained after screening process, then in baking oven 110
Under DEG C temperature condition, be dried within 24 hours；It is last again that 60 parts of Wheat straw fibers, 4 parts of hard calcium acetates and 3 parts are nano oxidized
Ball mill is added in aluminium, stirs 15min in the case where rotating speed is 200r/min, obtains modified Wheat straw fiber.
Wherein, the preparation method of the modified starch is as follows：
（1）By weight, by 24 parts of 100 parts of cornstarch, 10 parts of sodium tripolyphosphate, 8 parts of lignin, 5 parts of plant ash and water
It is sufficiently mixed uniformly；
（2）By step（1）Product to dry to water content be 6%, heat 3 hours at 145 DEG C after Bulking tank is added, then cool down,
It is added in extruder after dry, crushing and is gelatinized, expands through spiral heating, after dry, crushing, grind into powder can obtain described
Modified starch.
Wherein, the emulsifier is polyoxyethylene sorbitan monooleate.
Wherein, the dispersant is fatty acid.
A method of the fruit and vegetable preservative film special is prepared, is included the following steps：
（1）It is poly- that modified Wheat straw fiber, sodium alginate, sodium alginate, glycerine, lactic acid, attapulgite, shell are weighed by above-mentioned formula
Sugar, tealeaves, nano-titanium dioxide, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, dispersant, emulsifier
And appropriate amount of water；
（2）Attapulgite is put into Muffle furnace, 800 DEG C is warming up to and calcines 7 hours, be subsequently placed in ball mill and pulverize
End obtains calcining attapulgite powder；
（3）Tealeaves is placed in the distilled water of 15 times of its own weight, first soak at room temperature 1.2 hours is again heated to boiling, heat preservation
It impregnates 2.3 hours, then filters, obtain filtrate, be cooled to room temperature；
（4）Sodium alginate is dissolved in step（3）In the liquid of gained, it is poly- then to sequentially add sodium alginate, glycerine, lactic acid, shell
Sugar, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, are stirred so that mosanom, glycerine, lactic acid, shell
Glycan fully dissolves；
（5）Wheat straw fiber crushing and dispersant, emulsifier, nano-titanium dioxide and calcining attapulgite powder will be modified together
It is added to step（4）In the mixed liquor of gained, it is uniformly mixed using magnetic stirrer, then degassing process, must form a film molten
Liquid；
（6）Film forming solution is uniformly coated on carrier surface, it is dry at 42 DEG C after from carrier stripping film, the water is made
Fruit vegetable preservative film special.
Wherein, the magnetic stirrer time is 1 hour.
Embodiment 4
The present embodiment is related to a kind of fruit and vegetable preservative film special, includes the raw material of following parts by weight：Modified 18 parts of Wheat straw fiber,
15 parts of sodium alginate, 22 parts of sodium alginate, 27 parts of glycerine, 16 parts of lactic acid, 14 parts of attapulgite, 19 parts of chitosan, 8 parts of tealeaves,
3.6 parts of nano-titanium dioxide, 4.2 parts of sodium trimetaphosphate, 11 parts of modified starch, 2.4 parts of citric acid, glycerin monostearate 3.1
Part, 1.9 parts of dispersant, 2.8 parts of emulsifier and appropriate amount of water；
The preparation method of the modified Wheat straw fiber is as follows：
By a concentration of 15% soaking with sodium hydroxide 1.5h of straw mass fraction, pretreatment temperature is 110 DEG C, then at 60 DEG C
Dewatered drying places into and wears into fiber in flour mill, 20~60 mesh particles is obtained after screening process, then in baking oven 110
Under DEG C temperature condition, be dried within 24 hours；It is last again that 60 parts of Wheat straw fibers, 4 parts of hard calcium acetates and 3 parts are nano oxidized
Ball mill is added in aluminium, stirs 15min in the case where rotating speed is 200r/min, obtains modified Wheat straw fiber.
Wherein, the preparation method of the modified starch is as follows：
（1）By weight, by 24 parts of 100 parts of cornstarch, 10 parts of sodium tripolyphosphate, 8 parts of lignin, 5 parts of plant ash and water
It is sufficiently mixed uniformly；
（2）By step（1）Product to dry to water content be 7%, heat 3 hours at 150 DEG C after Bulking tank is added, then cool down,
It is added in extruder after dry, crushing and is gelatinized, expands through spiral heating, after dry, crushing, grind into powder can obtain described
Modified starch.
Wherein, the emulsifier is polyoxyethylene sorbitan monooleate.
Wherein, the dispersant is fatty acid.
A method of the fruit and vegetable preservative film special is prepared, is included the following steps：
（1）It is poly- that modified Wheat straw fiber, sodium alginate, sodium alginate, glycerine, lactic acid, attapulgite, shell are weighed by above-mentioned formula
Sugar, tealeaves, nano-titanium dioxide, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, dispersant, emulsifier
And appropriate amount of water；
（2）Attapulgite is put into Muffle furnace, 800 DEG C is warming up to and calcines 7 hours, be subsequently placed in ball mill and pulverize
End obtains calcining attapulgite powder；
（3）Tealeaves is placed in the distilled water of 15 times of its own weight, first soak at room temperature 1.5 hours is again heated to boiling, heat preservation
It impregnates 2.5 hours, then filters, obtain filtrate, be cooled to room temperature；
（4）Sodium alginate is dissolved in step（3）In the liquid of gained, it is poly- then to sequentially add sodium alginate, glycerine, lactic acid, shell
Sugar, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, are stirred so that mosanom, glycerine, lactic acid, shell
Glycan fully dissolves；
（5）Wheat straw fiber crushing and dispersant, emulsifier, nano-titanium dioxide and calcining attapulgite powder will be modified together
It is added to step（4）In the mixed liquor of gained, it is uniformly mixed using magnetic stirrer, then degassing process, must form a film molten
Liquid；
（6）Film forming solution is uniformly coated on carrier surface, it is dry at 45 DEG C after from carrier stripping film, the water is made
Fruit vegetable preservative film special.
Wherein, the magnetic stirrer time is 1 hour.
Embodiment 5
The present embodiment is related to a kind of fruit and vegetable preservative film special, includes the raw material of following parts by weight：Modified 15 parts of Wheat straw fiber,
13 parts of sodium alginate, 18 parts of sodium alginate, 25 parts of glycerine, 14 parts of lactic acid, 10 parts of attapulgite, 17 parts of chitosan, tealeaves 7.6
Part, 3 parts of nano-titanium dioxide, 3.9 parts of sodium trimetaphosphate, 8 parts of modified starch, 2 parts of citric acid, glycerin monostearate 3 part, point
1.8 parts of powder, 2.7 parts of emulsifier and appropriate amount of water；
The preparation method of the modified Wheat straw fiber is as follows：
By a concentration of 15% soaking with sodium hydroxide 1.5h of straw mass fraction, pretreatment temperature is 110 DEG C, then at 60 DEG C
Dewatered drying places into and wears into fiber in flour mill, 20~60 mesh particles is obtained after screening process, then in baking oven 110
Under DEG C temperature condition, be dried within 24 hours；It is last again that 60 parts of Wheat straw fibers, 4 parts of hard calcium acetates and 3 parts are nano oxidized
Ball mill is added in aluminium, stirs 15min in the case where rotating speed is 200r/min, obtains modified Wheat straw fiber.
Wherein, the preparation method of the modified starch is as follows：
（1）By weight, by 24 parts of 100 parts of cornstarch, 10 parts of sodium tripolyphosphate, 8 parts of lignin, 5 parts of plant ash and water
It is sufficiently mixed uniformly；
（2）By step（1）Product to dry to water content be 9%, heat 3 hours at 155 DEG C after Bulking tank is added, then cool down,
It is added in extruder after dry, crushing and is gelatinized, expands through spiral heating, after dry, crushing, grind into powder can obtain described
Modified starch.
Wherein, the emulsifier is polyoxyethylene sorbitan monooleate.
Wherein, the dispersant is fatty acid.
A method of the fruit and vegetable preservative film special is prepared, is included the following steps：
（1）It is poly- that modified Wheat straw fiber, sodium alginate, sodium alginate, glycerine, lactic acid, attapulgite, shell are weighed by above-mentioned formula
Sugar, tealeaves, nano-titanium dioxide, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, dispersant, emulsifier
And appropriate amount of water；
（2）Attapulgite is put into Muffle furnace, 800 DEG C is warming up to and calcines 7 hours, be subsequently placed in ball mill and pulverize
End obtains calcining attapulgite powder；
（3）Tealeaves is placed in the distilled water of 15 times of its own weight, first soak at room temperature 1.8 hours is again heated to boiling, heat preservation
It impregnates 2.7 hours, then filters, obtain filtrate, be cooled to room temperature；
（4）Sodium alginate is dissolved in step（3）In the liquid of gained, it is poly- then to sequentially add sodium alginate, glycerine, lactic acid, shell
Sugar, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, are stirred so that mosanom, glycerine, lactic acid, shell
Glycan fully dissolves；
（5）Wheat straw fiber crushing and dispersant, emulsifier, nano-titanium dioxide and calcining attapulgite powder will be modified together
It is added to step（4）In the mixed liquor of gained, it is uniformly mixed using magnetic stirrer, then degassing process, must form a film molten
Liquid；
（6）Film forming solution is uniformly coated on carrier surface, it is dry at 48 DEG C after from carrier stripping film, the water is made
Fruit vegetable preservative film special.
Wherein, the magnetic stirrer time is 1 hour.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of fruit and vegetable preservative film special, which is characterized in that include the raw material of following parts by weight：Modified Wheat straw fiber 10~
20 parts, 8~17 parts of sodium alginate, 13~25 parts of sodium alginate, 15~30 parts of glycerine, 11~19 parts of lactic acid, attapulgite 7~16
Part, 12~21 parts of chitosan, 6~10 parts of tealeaves, 2~4 parts of nano-titanium dioxide, 3~5 parts of sodium trimetaphosphate, modified starch 5~
12 parts, 1~3 part of citric acid, 2~4 parts of glycerin monostearate, 1~2 part of dispersant, 2~3 parts of emulsifier and appropriate amount of water；
The preparation method of the modified Wheat straw fiber is as follows：
By a concentration of 15% soaking with sodium hydroxide 1.5h of straw mass fraction, pretreatment temperature is 110 DEG C, then at 60 DEG C
Dewatered drying places into and wears into fiber in flour mill, 20~60 mesh particles is obtained after screening process, then in baking oven 110
Under DEG C temperature condition, be dried within 24 hours；It is last again that 60 parts of Wheat straw fibers, 4 parts of hard calcium acetates and 3 parts are nano oxidized
Ball mill is added in aluminium, stirs 15min in the case where rotating speed is 200r/min, obtains modified Wheat straw fiber.
2. fruit and vegetable preservative film special according to claim 1, which is characterized in that include the raw material of following parts by weight：
Modified 13~18 parts of Wheat straw fiber, 10~15 parts of sodium alginate, 16~22 parts of sodium alginate, 20~27 parts of glycerine, lactic acid 12~
16 parts, 9~14 parts of attapulgite, 15~19 parts of chitosan, 7~8 parts of tealeaves, 2.3~3.6 parts of nano-titanium dioxide, three inclined phosphorus
3.5~4.2 parts of sour sodium, 6~11 parts of modified starch, 1.6~2.4 parts of citric acid, 2.8~3.1 parts of glycerin monostearate, dispersion
1.3~1.9 parts of agent, 2.1~2.8 parts of emulsifier and appropriate amount of water.
3. fruit and vegetable preservative film special according to claim 1, which is characterized in that include the raw material of following parts by weight：
Modified 15 parts of Wheat straw fiber, 13 parts of sodium alginate, 18 parts of sodium alginate, 25 parts of glycerine, 14 parts of lactic acid, 10 parts of attapulgite, shell
17 parts of glycan, 7.6 parts of tealeaves, 3 parts of nano-titanium dioxide, 3.9 parts of sodium trimetaphosphate, 8 parts of modified starch, 2 parts of citric acid, list are hard
3 parts of glycerol, 1.8 parts of dispersant, 2.7 parts of emulsifier and appropriate amount of water.
4. fruit and vegetable preservative film special according to claim 1, which is characterized in that the preparation method of the modified starch
It is as follows：
（1）By weight, by 24 parts of 100 parts of cornstarch, 10 parts of sodium tripolyphosphate, 8 parts of lignin, 5 parts of plant ash and water
It is sufficiently mixed uniformly；
（2）By step（1）Product dry to water content be 5~10%, be added Bulking tank after heated 3 hours at 140~160 DEG C,
Then it is added in extruder after cooling, dry, crushing and is gelatinized, expands through spiral heating, after dry, crushing, grind into powder
The modified starch can be obtained.
5. fruit and vegetable preservative film special according to claim 1, which is characterized in that the emulsifier is de- for polyoxyethylene
Water sorbitol monooleate.
6. fruit and vegetable preservative film special according to claim 1, which is characterized in that the dispersant is fatty acid.
7. a kind of method preparing any one of claim 1~6 fruit and vegetable preservative film special, which is characterized in that including
Following steps：
（1）It is poly- that modified Wheat straw fiber, sodium alginate, sodium alginate, glycerine, lactic acid, attapulgite, shell are weighed by above-mentioned formula
Sugar, tealeaves, nano-titanium dioxide, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, dispersant, emulsifier
And appropriate amount of water；
（2）Attapulgite is put into Muffle furnace, 800 DEG C is warming up to and calcines 7 hours, be subsequently placed in ball mill and pulverize
End obtains calcining attapulgite powder；
（3）Tealeaves is placed in the distilled water of 15 times of its own weight, first soak at room temperature 1~2 hour is again heated to boiling, protects
Temperature is impregnated 2~3 hours, is then filtered, is obtained filtrate, is cooled to room temperature；
（4）Sodium alginate is dissolved in step（3）In the liquid of gained, it is poly- then to sequentially add sodium alginate, glycerine, lactic acid, shell
Sugar, sodium trimetaphosphate, modified starch, citric acid, glycerin monostearate, are stirred so that mosanom, glycerine, lactic acid, shell
Glycan fully dissolves；
（5）Wheat straw fiber crushing and dispersant, emulsifier, nano-titanium dioxide and calcining attapulgite powder will be modified together
It is added to step（4）In the mixed liquor of gained, it is uniformly mixed using magnetic stirrer, then degassing process, must form a film molten
Liquid；
（6）Film forming solution is uniformly coated on carrier surface, it is dry at 40~50 DEG C after from carrier stripping film, institute is made
State fruit and vegetable preservative film special.
8. preparation method according to claim 7, which is characterized in that the magnetic stirrer time is 1 hour.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109337126A (en) * | 2018-08-29 | 2019-02-15 | 天峨县平昌生态农业有限公司 | A method of food fresh keeping membrane is prepared using esterification starch |
| CN109440531A (en) * | 2018-11-01 | 2019-03-08 | 界首市王集镇毛毛家庭农场 | A kind of bagging paper and preparation method thereof for vegetable cultivation |
| CN110358179A (en) * | 2019-08-13 | 2019-10-22 | 宜兴西工维新科技有限公司 | A kind of fruit and vegetable preservative film and preparation method thereof |
| CN115152643A (en) * | 2022-08-12 | 2022-10-11 | 杭州高爷家小炮宠物用品有限责任公司 | Preparation process of cereal puffed cat litter |
| CN115302934A (en) * | 2022-08-12 | 2022-11-08 | 武汉轻工大学 | Full-biodegradable double-layer antibacterial composite film and preparation method thereof |
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| CN102504351A (en) * | 2011-11-03 | 2012-06-20 | 中山火炬职业技术学院 | Chitosan composite preservative film and preparation process thereof |
| CN107200871A (en) * | 2017-05-22 | 2017-09-26 | 句容市兴武包装有限公司 | A kind of antimicrobial preservative film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102504351A (en) * | 2011-11-03 | 2012-06-20 | 中山火炬职业技术学院 | Chitosan composite preservative film and preparation process thereof |
| CN107200871A (en) * | 2017-05-22 | 2017-09-26 | 句容市兴武包装有限公司 | A kind of antimicrobial preservative film and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109337126A (en) * | 2018-08-29 | 2019-02-15 | 天峨县平昌生态农业有限公司 | A method of food fresh keeping membrane is prepared using esterification starch |
| CN109440531A (en) * | 2018-11-01 | 2019-03-08 | 界首市王集镇毛毛家庭农场 | A kind of bagging paper and preparation method thereof for vegetable cultivation |
| CN110358179A (en) * | 2019-08-13 | 2019-10-22 | 宜兴西工维新科技有限公司 | A kind of fruit and vegetable preservative film and preparation method thereof |
| CN115152643A (en) * | 2022-08-12 | 2022-10-11 | 杭州高爷家小炮宠物用品有限责任公司 | Preparation process of cereal puffed cat litter |
| CN115302934A (en) * | 2022-08-12 | 2022-11-08 | 武汉轻工大学 | Full-biodegradable double-layer antibacterial composite film and preparation method thereof |
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