CN109527080A - A kind of preparation process of highly-breathable bean dregs compelx coating - Google Patents
A kind of preparation process of highly-breathable bean dregs compelx coating Download PDFInfo
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- CN109527080A CN109527080A CN201811037398.0A CN201811037398A CN109527080A CN 109527080 A CN109527080 A CN 109527080A CN 201811037398 A CN201811037398 A CN 201811037398A CN 109527080 A CN109527080 A CN 109527080A
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/16—Coating with a protective layer; Compositions or apparatus therefor
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B7/148—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
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Abstract
The present invention provides a kind of preparation process of highly-breathable bean dregs compelx coating, is related to bean product waste processing technique field.The preparation process of the highly-breathable bean dregs compelx coating specifically includes that immersion, grinding, drying, soda boiling, alkalization, etherificate, adjusts PH, alcohol precipitation, mixing magnetic agitation, ultrasonic mixing degassing, tape casting.The present invention overcomes the deficiencies in the prior art, solve the problems, such as traditional film poor air permeability, can not Natural Degradation, bean dregs compelx coating has the performance and solute insulating of good starvation and carbon dioxide exchange amount simultaneously, and fruit is made to achieve the effect that long acting fresh-keeping.
Description
Technical field
The present invention relates to bean product waste processing technique fields, and in particular to a kind of highly-breathable bean dregs compelx coating
Preparation process.
Background technique
Plastics are that the new preserving fruit and vegetable utilizing of one kind released in recent years is at low cost, effect is reliable, the reliable novel storage of energy conservation
Hiding technology.Coating-film fresh-keeping method is made of that simple coating-film fresh-keeping is usually by film forming matters such as wax, natural resin, lipid, gelatin, starch
The aqueous solution or emulsion of debita spissitudo are coated on fruit surface using the methods of dipping, smearing, sprinkling, form one after air-drying
The very thin transparent coating of layer.It inhibits the gas exchanges of fruits and vegetables, reduces its respiration rate, reduces moisture evaporation, prevents
Expose oxidation when air, it is therefore prevented that the raised growth of microorganism is bred.Currently, the methods of spray, brush, painting is mostly used to carry out
Film, it is difficult to guarantee the uniformity of coating thickness, meanwhile, there is also deficiencies in terms of film agent material, send out in practical application
Existing, single film forming agent has the defects of poor moisture holding capacity, poor air permeability, not strong antibacterial effect.
For defect existing for single film forming agent, some research at present is attempted to make using certain characteristics of film forming agent
Simple compound film former, but there are blindness and contingency in selection and optimization, and unbonded fruit vegetables storing characteristic, selection are closed
Suitable filmogen, causes the poor air permeability of composite membrane, biocidal property bad, has a negative impact to the quality and storage of product.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of preparation process of highly-breathable bean dregs compelx coating, solve
Traditional film poor air permeability, can not Natural Degradation the problem of, while bean dregs compelx coating have good starvation and dioxy
The performance and solute insulating for changing carbon exchange amount, make fruit achieve the effect that long acting fresh-keeping.
In order to achieve the above object, technical solution of the present invention is achieved by the following technical programs:
A kind of preparation process of highly-breathable bean dregs compelx coating, comprising the following steps:
(1) the fresh commercially available soybean of appropriate full grains, free from insect pests is selected, the pure water logging of 5 times of volumes is added after cleaning
12-16h is steeped, soybean is pulled out, is ground in grinder, fresh bean dreg is obtained after gained slurries filtration, bean dregs must be dried after drying
It is spare:
(2) above-mentioned dry bean dregs are mixed with sodium hydrate aqueous solution, is filtered after boiling 4h under high temperature, then carry out 3
Secondary washing, suction filtration, gained bean dregs carry out drying to refine bean dregs spare；
(3) purification bean dregs raw material is mixed by liquid-to-solid ratio 10mL/g with deionized water, adds sodium hydroxide, stirs evenly
Afterwards, after heat preservation alkalization a period of time, it is spare to obtain alkalizing solution；
(4) above-mentioned alkalizing solution is mixed with monoxone, stirring to abundant dissolution carries out heat preservation etherificate, after will be after etherificate
Mixed solution adjust PH to neutrality, the 1/6-1/5 of original volume is concentrated into vacuum, adds 4 times of volumes of concentrate
Dehydrated alcohol carry out alcohol precipitation, precipitating completely after filter filter residue drying crush after, it is spare to obtain carboxy methylation dietary fiber；
(5) by SiOx nanoparticals powder ultrasonic disperse in mass fraction be 1% glacial acetic acid solution in, add chitosan,
Glycerine and carboxymethyl cellulose are placed in heating stirring on magnetic stirring apparatus, if temperature is 50 DEG C, make its mixing, dissolution
30min, then adjusting pH value to 5.6, obtains SiOx chitosan solution,
(6) carboxy methylation dietary fiber is added in SiOx chitosan solution, after being sufficiently stirred, ultrasonic degassing is obtained mixed
Close solution, by mixed solution on acrylic board casting film-forming, be placed in freeze-day with constant temperature in drying box, obtain compelx coating of the present invention.
Preferably, the temperature of soybeans soaking is 30-35 DEG C in step (1), at a temperature of the condition of fresh bean dreg drying is 50 DEG C,
Persistently dry 6h.
Preferably, the mass ratio of sodium hydrate aqueous solution and bean dregs is 3: 1 in step (2), and in sodium hydrate aqueous solution
The content of sodium hydroxide is 1%, while the temperature of thermophilic digestion is 85-95 DEG C, and the temperature of drying is 90 DEG C.
Preferably, the mass ratio of the additional amount of sodium hydroxide and bean dregs is 1: 1 in step (3), and the temperature for keeping the temperature alkalization is
25 DEG C, the time of alkalization is 2.4h.
Preferably, added chloroacetic quality is 1.05 times of bean dregs raw material in step (4), and the temperature for keeping the temperature etherificate is 70
DEG C, etherification time 3.8h, and PH adjusting is carried out to solution using acetic acid, the temperature of drying is 60-70 DEG C.
Preferably, the mass fraction difference of chitosan in step (5), SiOx nanoparticals, glycerine and carboxymethyl dietary fiber
It is 1.5%, 0.1%, 0.75% and 0.5%, and adjusts pH value using the NaOH solution of 1.0mol/L.
Preferably, the mass ratio of carboxy methylation dietary fiber and SiOx chitosan solution is 1: 2 in step (6), and constant temperature is dry
Dry temperature is 40 DEG C.
Preferably, the ultrasonic power of the ultrasonic degassing is 100-500W, ultrasonic time 6-14min.
The present invention provides a kind of preparation process of highly-breathable bean dregs compelx coating, and advantage is compared with prior art:
(1) present invention is chemically modified cellulose a large amount of in bean dregs, obtains modified cellulose that can be water-soluble, makes
Obtaining compelx coating obtained by the later period has good film forming, gas barrier property and water preventing ability, being capable of anti-block and carbon dioxide ease
It loses, has the function that potent fresh-keeping.
(2) added with chitosan, SiOx nanoparticals, auxiliary other auxiliary agents are mixed to prepare preservation coating liquid to the present invention again, wherein receiving
Painting film strength can be enhanced in meter level SiOx, and appropriate be added can form fine and close nano-film coating, can with carboxymethyl cellulose it
Between generate hydrogen bond, while using silicon oxygen bond to the absorption of CO2 and O2, dissolution, diffusion and release action, inside and outside adjusting film CO2 and
The exchange capacity of O2 achievees the purpose that fruit fresh-keeping and water conservation to inhibit fruit respiratory intensity；Chitosan is natural plastics,
With the multiple functions such as safe and nontoxic, antibacterial, edible, degradable；Glycerine is used with plasticizer, between reduction point
Van der Waals force, increase the mechanical property of film.
(3) present invention prepares one kind using modified carboxy methyl cellulose and the combining ultrasonic processing of SiOx chitosan mixed solution
Novel bean dregs compelx coating makes gained film have many advantages, such as high stability and Environmental Safety.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below with reference to the embodiment of the present invention pair
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Embodiment 1:
The preparation process of highly-breathable bean dregs compelx coating, comprising the following steps:
(1) the fresh commercially available soybean of appropriate full grains, free from insect pests is selected, the pure water logging of 5 times of volumes is added after cleaning
12-16h is steeped, soybean is pulled out, is ground in grinder, fresh bean dreg is obtained after gained slurries filtration, bean dregs must be dried after drying
It is spare:
(2) above-mentioned dry bean dregs are mixed with sodium hydrate aqueous solution, is filtered after boiling 4h under high temperature, then carry out 3
Secondary washing, suction filtration, gained bean dregs carry out drying to refine bean dregs spare；
(3) purification bean dregs raw material is mixed by liquid-to-solid ratio 10mL/g with deionized water, adds sodium hydroxide, stirs evenly
Afterwards, after heat preservation alkalization a period of time, it is spare to obtain alkalizing solution；
(4) above-mentioned alkalizing solution is mixed with monoxone, stirring to abundant dissolution carries out heat preservation etherificate, after will be after etherificate
Mixed solution adjust PH to neutrality, the 1/6-1/5 of original volume is concentrated into vacuum, adds 4 times of volumes of concentrate
Dehydrated alcohol carry out alcohol precipitation, precipitating completely after filter filter residue drying crush after, it is spare to obtain carboxy methylation dietary fiber；
(5) by SiOx nanoparticals powder ultrasonic disperse in mass fraction be 1% glacial acetic acid solution in, add chitosan,
Glycerine and carboxymethyl cellulose are placed in heating stirring on magnetic stirring apparatus, if temperature is 50 DEG C, make its mixing, dissolution
30min, then adjusting pH value to 5.6, obtains SiOx chitosan solution,
(6) carboxy methylation dietary fiber is added in SiOx chitosan solution, after being sufficiently stirred, ultrasonic degassing is obtained mixed
Close solution, by mixed solution on acrylic board casting film-forming, be placed in freeze-day with constant temperature in drying box, obtain compelx coating of the present invention.
Wherein, the temperature of soybeans soaking is 30-35 DEG C in step (1), at a temperature of the condition of fresh bean dreg drying is 50 DEG C, is held
Continuous drying 6h；The mass ratio of sodium hydrate aqueous solution and bean dregs is 3: 1 in step (2), and hydroxide in sodium hydrate aqueous solution
The content of sodium is 1%, while the temperature of thermophilic digestion is 85-95 DEG C, and the temperature of drying is 90 DEG C；Sodium hydroxide in step (3)
Additional amount and the mass ratioes of bean dregs be 1: 1, the temperature for keeping the temperature alkalization is 25 DEG C, and time of alkalization is 2.4h；Institute in step (4)
Adding chloroacetic quality is 1.05 times of bean dregs raw material, and the temperature for keeping the temperature etherificate is 70 DEG C, etherification time 3.8h, and is used
Acetic acid carries out PH adjusting to solution, and the temperature of drying is 60-70 DEG C；Chitosan, SiOx nanoparticals, glycerine and carboxylic in step (5)
The mass fraction of methyl dietary fiber is respectively 1.5%, 0.1%, 0.75% and 0.5%, and molten using the NaOH of 1.0mol/L
Liquid adjusts pH value；The mass ratio of carboxy methylation dietary fiber and SiOx chitosan solution is 1: 2 in step (6), freeze-day with constant temperature
Temperature be 40 DEG C；The ultrasonic power of the ultrasonic degassing is 100W, ultrasonic time 14min.
Embodiment 2:
The preparation process of highly-breathable bean dregs compelx coating, comprising the following steps:
(1) the fresh commercially available soybean of appropriate full grains, free from insect pests is selected, the pure water logging of 5 times of volumes is added after cleaning
12-16h is steeped, soybean is pulled out, is ground in grinder, fresh bean dreg is obtained after gained slurries filtration, bean dregs must be dried after drying
It is spare:
(2) above-mentioned dry bean dregs are mixed with sodium hydrate aqueous solution, is filtered after boiling 4h under high temperature, then carry out 3
Secondary washing, suction filtration, gained bean dregs carry out drying to refine bean dregs spare；
(3) purification bean dregs raw material is mixed by liquid-to-solid ratio 10mL/g with deionized water, adds sodium hydroxide, stirs evenly
Afterwards, after heat preservation alkalization a period of time, it is spare to obtain alkalizing solution；
(4) above-mentioned alkalizing solution is mixed with monoxone, stirring to abundant dissolution carries out heat preservation etherificate, after will be after etherificate
Mixed solution adjust PH to neutrality, the 1/6-1/5 of original volume is concentrated into vacuum, adds 4 times of volumes of concentrate
Dehydrated alcohol carry out alcohol precipitation, precipitating completely after filter filter residue drying crush after, it is spare to obtain carboxy methylation dietary fiber；
(5) by SiOx nanoparticals powder ultrasonic disperse in mass fraction be 1% glacial acetic acid solution in, add chitosan,
Glycerine and carboxymethyl cellulose are placed in heating stirring on magnetic stirring apparatus, if temperature is 50 DEG C, make its mixing, dissolution
30min, then adjusting pH value to 5.6, obtains SiOx chitosan solution,
(6) carboxy methylation dietary fiber is added in SiOx chitosan solution, after being sufficiently stirred, ultrasonic degassing is obtained mixed
Close solution, by mixed solution on acrylic board casting film-forming, be placed in freeze-day with constant temperature in drying box, obtain compelx coating of the present invention.
Wherein, the temperature of soybeans soaking is 30-35 DEG C in step (1), at a temperature of the condition of fresh bean dreg drying is 50 DEG C, is held
Continuous drying 6h；The mass ratio of sodium hydrate aqueous solution and bean dregs is 3: 1 in step (2), and hydroxide in sodium hydrate aqueous solution
The content of sodium is 1%, while the temperature of thermophilic digestion is 85-95 DEG C, and the temperature of drying is 90 DEG C；Sodium hydroxide in step (3)
Additional amount and the mass ratioes of bean dregs be 1: 1, the temperature for keeping the temperature alkalization is 25 DEG C, and time of alkalization is 2.4h；Institute in step (4)
Adding chloroacetic quality is 1.05 times of bean dregs raw material, and the temperature for keeping the temperature etherificate is 70 DEG C, etherification time 3.8h, and is used
Acetic acid carries out PH adjusting to solution, and the temperature of drying is 60-70 DEG C；Chitosan, SiOx nanoparticals, glycerine and carboxylic in step (5)
The mass fraction of methyl dietary fiber is respectively 1.5%, 0.1%, 0.75% and 0.5%, and molten using the NaOH of 1.0mol/L
Liquid adjusts pH value；The mass ratio of carboxy methylation dietary fiber and SiOx chitosan solution is 1: 2 in step (6), freeze-day with constant temperature
Temperature be 40 DEG C；The ultrasonic power of the ultrasonic degassing is 200W, ultrasonic time 12min.
Embodiment 3:
The preparation process of highly-breathable bean dregs compelx coating, comprising the following steps:
(1) the fresh commercially available soybean of appropriate full grains, free from insect pests is selected, the pure water logging of 5 times of volumes is added after cleaning
12-16h is steeped, soybean is pulled out, is ground in grinder, fresh bean dreg is obtained after gained slurries filtration, bean dregs must be dried after drying
It is spare:
(2) above-mentioned dry bean dregs are mixed with sodium hydrate aqueous solution, is filtered after boiling 4h under high temperature, then carry out 3
Secondary washing, suction filtration, gained bean dregs carry out drying to refine bean dregs spare；
(3) purification bean dregs raw material is mixed by liquid-to-solid ratio 10mL/g with deionized water, adds sodium hydroxide, stirs evenly
Afterwards, after heat preservation alkalization a period of time, it is spare to obtain alkalizing solution；
(4) above-mentioned alkalizing solution is mixed with monoxone, stirring to abundant dissolution carries out heat preservation etherificate, after will be after etherificate
Mixed solution adjust PH to neutrality, the 1/6-1/5 of original volume is concentrated into vacuum, adds 4 times of volumes of concentrate
Dehydrated alcohol carry out alcohol precipitation, precipitating completely after filter filter residue drying crush after, it is spare to obtain carboxy methylation dietary fiber；
(5) by SiOx nanoparticals powder ultrasonic disperse in mass fraction be 1% glacial acetic acid solution in, add chitosan,
Glycerine and carboxymethyl cellulose are placed in heating stirring on magnetic stirring apparatus, if temperature is 50 DEG C, make its mixing, dissolution
30min, then adjusting pH value to 5.6, obtains SiOx chitosan solution,
(6) carboxy methylation dietary fiber is added in SiOx chitosan solution, after being sufficiently stirred, ultrasonic degassing is obtained mixed
Close solution, by mixed solution on acrylic board casting film-forming, be placed in freeze-day with constant temperature in drying box, obtain compelx coating of the present invention.
Wherein, the temperature of soybeans soaking is 30-35 DEG C in step (1), at a temperature of the condition of fresh bean dreg drying is 50 DEG C, is held
Continuous drying 6h；The mass ratio of sodium hydrate aqueous solution and bean dregs is 3: 1 in step (2), and hydroxide in sodium hydrate aqueous solution
The content of sodium is 1%, while the temperature of thermophilic digestion is 85-95 DEG C, and the temperature of drying is 90 DEG C；Sodium hydroxide in step (3)
Additional amount and the mass ratioes of bean dregs be 1: 1, the temperature for keeping the temperature alkalization is 25 DEG C, and time of alkalization is 2.4h；Institute in step (4)
Adding chloroacetic quality is 1.05 times of bean dregs raw material, and the temperature for keeping the temperature etherificate is 70 DEG C, etherification time 3.8h, and is used
Acetic acid carries out PH adjusting to solution, and the temperature of drying is 60-70 DEG C；Chitosan, SiOx nanoparticals, glycerine and carboxylic in step (5)
The mass fraction of methyl dietary fiber is respectively 1.5%, 0.1%, 0.75% and 0.5%, and molten using the NaOH of 1.0mol/L
Liquid adjusts pH value；The mass ratio of carboxy methylation dietary fiber and SiOx chitosan solution is 1: 2 in step (6), freeze-day with constant temperature
Temperature be 40 DEG C；The ultrasonic power of the ultrasonic degassing is 500W, ultrasonic time 6min.
Embodiment 4:
The preparation process of highly-breathable bean dregs compelx coating, comprising the following steps:
(1) the fresh commercially available soybean of appropriate full grains, free from insect pests is selected, the pure water logging of 5 times of volumes is added after cleaning
12-16h is steeped, soybean is pulled out, is ground in grinder, fresh bean dreg is obtained after gained slurries filtration, bean dregs must be dried after drying
It is spare:
(2) above-mentioned dry bean dregs are mixed with sodium hydrate aqueous solution, is filtered after boiling 4h under high temperature, then carry out 3
Secondary washing, suction filtration, gained bean dregs carry out drying to refine bean dregs spare；
(3) purification bean dregs raw material is mixed by liquid-to-solid ratio 10mL/g with deionized water, adds sodium hydroxide, stirs evenly
Afterwards, after heat preservation alkalization a period of time, it is spare to obtain alkalizing solution；
(4) above-mentioned alkalizing solution is mixed with monoxone, stirring to abundant dissolution carries out heat preservation etherificate, after will be after etherificate
Mixed solution adjust PH to neutrality, the 1/6-1/5 of original volume is concentrated into vacuum, adds 4 times of volumes of concentrate
Dehydrated alcohol carry out alcohol precipitation, precipitating completely after filter filter residue drying crush after, it is spare to obtain carboxy methylation dietary fiber；
(5) by SiOx nanoparticals powder ultrasonic disperse in mass fraction be 1% glacial acetic acid solution in, add chitosan,
Glycerine and carboxymethyl cellulose are placed in heating stirring on magnetic stirring apparatus, if temperature is 50 DEG C, make its mixing, dissolution
30min, then adjusting pH value to 5.6, obtains SiOx chitosan solution,
(6) carboxy methylation dietary fiber is added in SiOx chitosan solution, after being sufficiently stirred, ultrasonic degassing is obtained mixed
Close solution, by mixed solution on acrylic board casting film-forming, be placed in freeze-day with constant temperature in drying box, obtain compelx coating of the present invention.
Wherein, the temperature of soybeans soaking is 30-35 DEG C in step (1), at a temperature of the condition of fresh bean dreg drying is 50 DEG C, is held
Continuous drying 6h；The mass ratio of sodium hydrate aqueous solution and bean dregs is 3: 1 in step (2), and hydroxide in sodium hydrate aqueous solution
The content of sodium is 1%, while the temperature of thermophilic digestion is 85-95 DEG C, and the temperature of drying is 90 DEG C；Sodium hydroxide in step (3)
Additional amount and the mass ratioes of bean dregs be 1: 1, the temperature for keeping the temperature alkalization is 25 DEG C, and time of alkalization is 2.4h；Institute in step (4)
Adding chloroacetic quality is 1.05 times of bean dregs raw material, and the temperature for keeping the temperature etherificate is 70 DEG C, etherification time 3.8h, and is used
Acetic acid carries out PH adjusting to solution, and the temperature of drying is 60-70 DEG C；Chitosan, SiOx nanoparticals, glycerine and carboxylic in step (5)
The mass fraction of methyl dietary fiber is respectively 1.5%, 0.1%, 0.75% and 0.5%, and molten using the NaOH of 1.0mol/L
Liquid adjusts pH value；The mass ratio of carboxy methylation dietary fiber and SiOx chitosan solution is 1: 2 in step (6), freeze-day with constant temperature
Temperature be 40 DEG C；The ultrasonic power of the ultrasonic degassing is 300W, ultrasonic time 8min.
Embodiment 5:
Choosing compelx coating obtained by embodiment 1-4 is experimental group, and it is control group that conventional production methods, which prepare single film forming agent,
1, the simple composite film forming agent of conventional production methods preparation is control group 2, detect each experimental group and control group moisture-vapor transmission,
Oxygen permeating amount, saturating amount of carbon dioxide, light transmittance and bacterial growth situation, as a result as shown in the table:
Table can be seen that bean dregs compelx coating has good moisture-vapor transmission, gas-premeable, translucency in synthesis
And biocidal property, with better preserving fruit and vegetable utilizing applicability, at low cost, effect is reliable, energy conservation is reliable, and it is ventilative to solve traditional film
Property it is poor, can not Natural Degradation the problem of, while bean dregs compelx coating have good solute insulating.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of preparation process of highly-breathable bean dregs compelx coating, which comprises the following steps:
(1) the fresh commercially available soybean of appropriate full grains, free from insect pests is selected, the pure water that 5 times of volumes are added after cleaning impregnates 12-
16h pulls soybean out, is ground in grinder, and fresh bean dreg is obtained after gained slurries filtration, it is spare must to dry bean dregs after drying:
(2) above-mentioned dry bean dregs are mixed with sodium hydrate aqueous solution, is filtered after boiling 4h under high temperature, then carry out 3 water
It washes, filter, gained bean dregs carry out drying to refine bean dregs spare；
(3) purification bean dregs raw material is mixed by liquid-to-solid ratio 10mL/g with deionized water, adds sodium hydroxide, after mixing evenly,
After heat preservation alkalization a period of time, it is spare to obtain alkalizing solution；
(4) above-mentioned alkalizing solution is mixed with monoxone, stirring to abundant dissolution carries out heat preservation etherificate, after will be mixed after etherificate
It closes solution and adjusts PH to neutrality, the 1/6-1/5 of original volume is concentrated into vacuum, adds the anhydrous of 4 times of volumes of concentrate
Ethyl alcohol carry out alcohol precipitation, precipitating completely after filter filter residue drying crush after, it is spare to obtain carboxy methylation dietary fiber；
(5) by SiOx nanoparticals powder ultrasonic disperse in the glacial acetic acid solution that mass fraction is 1%, chitosan, the third three are added
Pure and mild carboxymethyl cellulose is placed in heating stirring on magnetic stirring apparatus, if temperature is 50 DEG C, makes its mixing, dissolution 30min, so
PH value is adjusted afterwards to 5.6, obtains SiOx chitosan solution,
(6) carboxy methylation dietary fiber is added in SiOx chitosan solution, after being sufficiently stirred, ultrasonic degassing must be mixed molten
Liquid, by mixed solution on acrylic board casting film-forming, be placed in freeze-day with constant temperature in drying box, obtain compelx coating of the present invention.
2. a kind of preparation process of highly-breathable bean dregs compelx coating as described in claim 1, it is characterised in that: step (1)
The temperature of middle soybeans soaking is 30-35 DEG C, at a temperature of the condition of fresh bean dreg drying is 50 DEG C, persistently dries 6h.
3. a kind of preparation process of highly-breathable bean dregs compelx coating as described in claim 1, it is characterised in that: step (2)
The mass ratio of middle sodium hydrate aqueous solution and bean dregs is 3: 1, and the content of sodium hydroxide is 1% in sodium hydrate aqueous solution, together
When thermophilic digestion temperature be 85-95 DEG C, the temperature of drying is 90 DEG C.
4. a kind of preparation process of highly-breathable bean dregs compelx coating as described in claim 1, it is characterised in that: step (3)
The additional amount of middle sodium hydroxide and the mass ratio of bean dregs are 1: 1, and the temperature for keeping the temperature alkalization is 25 DEG C, and the time of alkalization is 2.4h.
5. a kind of preparation process of highly-breathable bean dregs compelx coating as described in claim 1, it is characterised in that: step (4)
In added chloroacetic quality be 1.05 times of bean dregs raw material, the temperature for keeping the temperature etherificate is 70 DEG C, etherification time 3.8h, and
PH adjusting is carried out to solution using acetic acid, the temperature of drying is 60-70 DEG C.
6. a kind of preparation process of highly-breathable bean dregs compelx coating as described in claim 1, it is characterised in that: step (5)
Middle chitosan, SiOx nanoparticals, glycerine and carboxymethyl dietary fiber mass fraction be respectively 1.5%, 0.1%, 0.75% and
0.5%, and pH value is adjusted using the NaOH solution of 1.0mol/L.
7. a kind of preparation process of highly-breathable bean dregs compelx coating as described in claim 1, it is characterised in that: step (6)
The mass ratio of middle carboxy methylation dietary fiber and SiOx chitosan solution is 1: 2, and the temperature of freeze-day with constant temperature is 40 DEG C.
8. a kind of preparation process of highly-breathable bean dregs compelx coating as described in claim 1, it is characterised in that: the ultrasound
The ultrasonic power of degassing is 100-500W, ultrasonic time 6-14min.
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| CN201811037398.0A Pending CN109527080A (en) | 2018-09-06 | 2018-09-06 | A kind of preparation process of highly-breathable bean dregs compelx coating |
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