CN106750453B - Purple sweet potato, sweet potato, yam bean potato anti-corrosion sprout inhibition preservative film - Google Patents
Purple sweet potato, sweet potato, yam bean potato anti-corrosion sprout inhibition preservative film Download PDFInfo
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- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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Abstract
The present invention relates to a kind of purple sweet potato special mildewproof high moisture-inhibiting preservative film, linear low density polyethylene resin, ldpe resin, calcium carbonate master batch, antifog master batch, antibacterial matrices, silane coupling agent, oleamide, ethylene absorbent, CO2 absorbent, sprout inhibitor, thickener, antioxidant, Thymol essential oils, methyl jasmonate.Film surface prepared by the present invention is bright and new bright, enhances film strength, ageing-resistant, draftability, has ventilative, penetrability and sprout inhibition, mould proof, anti-fog performance, reduces in purple sweet potato storage because of CO2The risk of excessive concentration compares other preservative films, to the fresh-keeping more targeted of purple sweet potato.
Description
Technical field
The invention belongs to anti-mildew fresh-keeping field, especially a kind of purple sweet potato, sweet potato, yam bean potato anti-corrosion sprout inhibition preservative film.
Background technique
The principal element for influencing the potato especially freshness date length of purple sweet potato, sweet potato and yam bean is as follows:
(1) store humidity: potato storage ambient needs humidity higher, and the humidity for generally requiring 90% or more just can be with high
Humidity makes mould be easy growth, causes fruit perishable, needs a kind of high moisture-inhibiting material in storage, to carry out anti-droplet, keeps away
Exempt from water droplet to be formed, avoids fungus growth, while preservative is also added, avoid the growth of mould.
(2) temperature: since the storage temperature of potato is high, respiration of fruits is strong, and reserve temperature height (14 DEG C or more), metabolism is fast,
Gas yield is very fast, it is therefore desirable to a kind of good permeability especially fast material of ethylene adsorption.
(3) gas: potato can discharge titanium dioxide when storing, and absorb oxygen, the gas for the storage space that is self-regulated also, but such as
The controlled atmosphere of fruit external world cooperation is unreasonable, be easy to cause resultant turbulence, influences the storage life of potato instead.It is therefore proposed that being
The material beneficial to other molecules can be lockked
(4) anti-corrosion: potato is held during harvesting and transport generates wound, and wound is perishable, and included edaphon,
Pathogenic bacteria can also cause rotting for potato fruit；
(5) damage to plants caused by sudden drop in temperature: damaging to plants caused by sudden drop in temperature for potato is a significant evil source in storage, and be easy to cause the calamity of large area
Evil, belongs to a kind of disaster of keypoint control；
(6) germinate: it is to need to carry out germination inhibition in storage the phenomenon that often having that potato, which is easily germinateed,；
(7) the chaff heart: the wounds such as bark, slight crack are caused in harvesting, storage and transport process, enhance respiration, nutrient consumption mistake
The chaff heart is caused greatly, influences subsequent eating mouth feel and storage time.
(8) brown stain: for a long time under hygrothermal environment, potato itself be easy to cause brown stain, influences the appearance in later period and practical
Safety.
Currently, preserving fruit and vegetable utilizing membrane technology specifically includes that common preservative film, boudoir window regulating the qi flowing in the channels film, anti-fog function are protected both at home and abroad
Fresh film, micropore fruits and vegetables film, edible fruit and vegetable plastic wrap, antimicrobial preservative film, in addition to this six major class, there are also some composite membranes.
But the preservation condition that various fruits and vegetables require is different, for different fruits and vegetables preservative film of different nature.
It is 65% or so that potato, which most preferably stores humidity, and most suitable 14 DEG C of reserve temperature or more, be storage temperature in all fruits and vegetables
It is highest.But its temperature is often less than its most suitable storage temperature in transport storage, damages to plants caused by sudden drop in temperature potato；High temperature is high
Wet to cause its respiratory intensity high, rotten, germination, browning are serious, cause its nutrient component damages serious.
Summary of the invention
The present invention be in order to solve the problems, such as that potato is fresh-keeping, provide a kind of fresh keeping time length, the purple sweet potato of novel formula, sweet potato,
The potato anti-corrosion sprout inhibition preservative film of yam bean.
The present invention realizes that the technical solution of purpose is as follows:
A kind of purple sweet potato special mildewproof high moisture-inhibiting preservative film, component and part are
Moreover, the preparation method of the calcium carbonate master batch is first to be added to account for weight of calcium carbonate 2.5-3% in calcium carbonate
Then the water of silane coupling agent and 1-1.8 times of weight is pressed whip modified 1-1.5 hours under the conditions of 70-90 DEG C with substrate resin
Calcium carbonate master batch is prepared by double-screw extruding pelletizing machine after weight ratio 6:35-40 mixing.
Moreover, the preparation method of the antifog master batch is first by Monoolein, sorbitan, sorbitan
After stearate ratio 1:1.5-2:1.5-2 mixing, then by mixture and substrate resin by weight 1:18-19 mixing, by double
Screw extruder pelletizer is prepared into antifog master batch.
Moreover, the preparation method of the antibacterial matrices is first by 3-methoxy-4-hydroxybenzaldehyde, 3- ethyoxyl -4-
Hydroxy benzaldehyde is mixed by weight=1-2:3-4 mixing, then by mixture and substrate resin by weight 1:20-25, is passed through
Double-screw extruding pelletizing machine is prepared into antibacterial matrices.
Moreover, the preparation method of the dilute absorbent of the second is that porous material is assisted analcime, aperture 0.5-1.7nm
Active carbon by weight 1:1 be material, crushed, porous powder of 200 mesh more but less than 300 mesh be made, then add
Porous material and metal ion are kneaded into porous powder by trace metal ion magnesium, nickel, then with metal-chelator
EDTA, matrix resin are mixed by weight 1:5:25-30.
Moreover, the CO2The preparation method of absorbent is that porous material is assisted analcime, aperture 0.5-1.7nm
Active carbon by weight 1:1 be material, crushed, porous powder of 200 mesh more but less than 300 mesh be made, then add
Porous material and metal ion are kneaded into porous powder by trace metal ion magnesium, nickel, then with metal-chelator
EDTA, matrix resin are mixed by weight 1:5:25-30.
Moreover, the coupling agent is silane coupling agent.The sprout inhibitor is cinnamic acid, abscisic acid, according to weight
Amount is injected in pigment auxiliary agent than 1:1.The thickener is aluminum stearate thickener.The antioxidant is antioxidant
1076。
Moreover, the sprout inhibitor is cinnamic acid, abscisic acid, according to weight ratio 1:1.
A kind of preparation method of purple sweet potato special mildewproof high moisture-inhibiting preservative film, steps are as follows:
(1) by the ldpe resin of the parts by weight, calcium carbonate master batch, silane coupling agent, oleamide, anti-
Starter grain, antifog master batch mixing granulation prepare film using the material when preparation；
Again by the linear low density polyethylene resin of the master batch being mixed to prepare and above-mentioned weight item, ethylene absorbent,
Methyl jasmonate, sprout inhibitor, CO2 absorbent and essential oil mixing are sprayed on the film surface of step (1).
Moreover, the coating thickness is 1-10 microns.
The advantages and positive effects of the present invention are as follows:
1, the present invention is injected to methyl jasmonate as pre- cold damage prevention agent in pigment auxiliary agent, prevents purple sweet potato in storage
In damaged to plants caused by sudden drop in temperature；
2, the active carbon that the present invention is 0.5-1.7nm using porous material association analcime, aperture is material by weight 1:1
Material, is crushed, the porous powder of 200 mesh or more is made, then add trace metal ion magnesium, nickel, by porous material and gold
Belong to ion to be kneaded into porous powder, after then mixing with metal-chelator EDTA, matrix resin by weight 1:5:25-30
Molding had both reduced CO in purple sweet potato storage2Content, and the content of ethylene in film is reduced, to reduce because of CO2Concentration
The excessively high risk for causing poisoning and the probability of purple sweet potato brown stain.
3, the present invention is injected to pigment auxiliary agent as sprout inhibitor according to weight ratio 1:1 using cinnamic acid, abscisic acid
In, it ensure that purple sweet potato is not germinateed in 90 days in storage；
4, the present invention is using oleamide simultaneously as opening agent, lubricant, antistatic agent.
5, porous mass is added in this preservative film in ingredient, locks titanium dioxide using porous mass such as zeolite, can
Using the spontaneous controlled-atmosphere of potato, carbon dioxide and low-oxygen environment that potato itself generates, the freshness date of Lai Yanchang potato are fettered
Limit.
6, preservative is added in this preservative film in ingredient, and preservative film is able to suppress the microorganism (soil) in soil, Neng Gouyan
The freshness date of long potato.
7, film surface prepared by the present invention is bright and new bright, enhances film strength, ageing-resistant, draftability, has ventilative, saturating
Moist and sprout inhibition, mould proof, anti-fog performance, reduce in purple sweet potato storage because of CO2The risk of excessive concentration, compared to other guarantors
Fresh film, to the fresh-keeping more targeted of purple sweet potato.
Detailed description of the invention
Fig. 1 is the preparation flow figure of preservative film of the present invention.
Specific embodiment
Below by specific embodiment, the invention will be further described, and it is not limit that following embodiment, which is descriptive,
Qualitatively, this does not limit the scope of protection of the present invention.
A kind of purple sweet potato special mildewproof high moisture-inhibiting preservative film, it is characterised in that: its component and part is
The preparation method of the calcium carbonate master batch is first to be added to account for weight of calcium carbonate 2.5-3% silane idol in calcium carbonate
Join the water of agent and 1-1.8 times of weight, whip modified 1-1.5 hours under the conditions of 70-90 DEG C, then by weight with substrate resin
Calcium carbonate master batch is prepared by double-screw extruding pelletizing machine after 6:35-40 mixing.
The preparation method of the antifog master batch is first that Monoolein, sorbitan, sorbitan is stearic
After acid esters ratio 1:1.5-2:1.5-2 mixing, then mixture and substrate resin mixed by weight 1:18-19, passes through twin-screw
Extruding granulator is prepared into antifog master batch.
The preparation method of the antibacterial matrices is first by 3-methoxy-4-hydroxybenzaldehyde, 3- ethyoxyl -4- hydroxy benzenes
Formaldehyde is mixed by weight=1-2:3-4 mixing, then by mixture and substrate resin by weight 1:20-25, passes through twin-screw
Extruding granulator is prepared into antibacterial matrices.
The preparation method of the dilute absorbent of the second is that porous material is assisted the work that analcime, aperture are 0.5-1.7nm
Property charcoal by weight 1:1 be material, crushed, porous powder of 200 mesh more but less than 300 mesh be made, then added micro
Porous material and metal ion are kneaded into porous powder by metal ion magnesium, nickel, then with metal-chelator EDTA,
Matrix resin is mixed by weight 1:5:25-30.
The CO2The preparation method of absorbent is that porous material is assisted the activity that analcime, aperture are 0.5-1.7nm
Charcoal is material by weight 1:1, is crushed, porous powder of 200 mesh more but less than 300 mesh is made, then add micro gold
Belong to ion magnesium, nickel, porous material and metal ion be kneaded into porous powder, then with metal-chelator EDTA, base
Body resin is mixed by weight 1:5:25-30.
The coupling agent is silane coupling agent.The sprout inhibitor is cinnamic acid, abscisic acid, according to weight ratio 1:
1 is injected in pigment auxiliary agent.The thickener is aluminum stearate thickener.The antioxidant is antioxidant 1076.It is described
Essential oil be Thymol.
The preparation method of above-mentioned purple sweet potato special mildewproof high moisture-inhibiting preservative film, steps are as follows:
(1) by the ldpe resin of the parts by weight, calcium carbonate master batch, silane coupling agent, oleamide, anti-
Starter grain, antifog master batch mixing granulation prepare film using the material when preparation；
Again by the linear low density polyethylene resin of the master batch being mixed to prepare and above-mentioned weight item, ethylene absorbent,
Methyl jasmonate, sprout inhibitor, CO2 absorbent and essential oil mixing are sprayed on the film surface of step (1).(1) step is propped up
After supportting film, ingredient 2 is electroplated on film 1, forms the effect of a tunic and one layer of spraying film, in use, spraying film direction
Potato.Coating thickness is 1-10 microns general.
Freshness date: freshness date can be extended to 90-100 days, the suitable preservation temperature of sweet potato by the sweet potato wrapped up by film
Under degree.
Germination percentage
Germination percentage is one of the important indicator for judging Ipomoea batatas stem tuber storage period quality.Stem tuber germination needs to consume big
Nutriment is measured, causes dry matter to reduce, stem tuber dehydration wilting, shrinkage, quality deteriorate, and commodity performance sharply declines, and produce simultaneously
The raw solanine toxic to people and animals, can no longer act as to process raw material.
Sweet potato storage period germination percentage situation is shown in Table 1, as can be seen from the table, store 120d after, under the conditions of 0 DEG C control group and
Processing group germination percentage is 0；Under the conditions of 8 DEG C, control group sweet potato starts to germinate when storing 90d, germination percentage 16.7%, with
The extension of storage time, germination percentage increase, and germination percentage reaches 25.5% when storing 120d, the sweet potato handled with 0.3g/kgCIPC
It does not germinate yet after storing 120d.Show that the potato wedge that processing is wrapped up through preservative film can obviously reduce germination percentage.
Table 1
Table 2 damages to plants caused by sudden drop in temperature control rate
。
Claims (9)
1. a kind of preparation method of purple sweet potato special mildewproof high moisture-inhibiting preservative film, steps are as follows:
(1) the ldpe resin of the parts by weight, calcium carbonate master batch, silane coupling agent, oleamide, antibacterial is female
Grain, antifog master batch mixing granulation prepare film using the material when preparation；
(2) again by linear low density polyethylene resin, the ethylene absorbent, jasmine of the master batch being mixed to prepare and above-mentioned weight item
Sour methyl esters, sprout inhibitor, CO2 absorbent and essential oil mixing are sprayed on the film surface of step (1)；
The component and part of the purple sweet potato special mildewproof high moisture-inhibiting preservative film are as follows:
2. the preparation method of purple sweet potato special mildewproof high moisture-inhibiting preservative film according to claim 1, it is characterised in that: described
The preparation method of calcium carbonate master batch is first to be added to account for weight of calcium carbonate 2.5-3% silane coupling agent and 1-1.8 weight in calcium carbonate
The water of amount times, whip modified 1-1.5 hours under the conditions of 70-90 DEG C, after then being mixed with substrate resin by weight 6:35-40
Calcium carbonate master batch is prepared by double-screw extruding pelletizing machine.
3. the preparation method of purple sweet potato special mildewproof high moisture-inhibiting preservative film according to claim 1, it is characterised in that: described
The preparation method of antifog master batch is first by Monoolein, sorbitan, sorbitan stearate ratio 1:1.5-2:
After 1.5-2 mixing, then mixture and substrate resin mixed by weight 1:18-19, is prepared by double-screw extruding pelletizing machine
Obtain antifog master batch.
4. the preparation method of purple sweet potato special mildewproof high moisture-inhibiting preservative film according to claim 1, it is characterised in that: described
The preparation method of antibacterial matrices be first by 3-methoxy-4-hydroxybenzaldehyde, 3- ethyoxyl -4- hydroxy benzaldehyde by weight
=1-2:3-4 mixing, then mixture and substrate resin are mixed by weight 1:20-25, pass through double-screw extruding pelletizing mechanism
It is standby to obtain antibacterial matrices.
5. the preparation method of purple sweet potato special mildewproof high moisture-inhibiting preservative film according to claim 1, it is characterised in that: described
The preparation method of the dilute absorbent of second is to assist porous material active carbon that analcime, aperture are 0.5-1.7nm by weight 1:1
It for material, is crushed, porous powder of 200 mesh more but less than 300 mesh is made, then add trace metal ion magnesium, nickel, it will
At porous powder, then by weight with metal-chelator EDTA, matrix resin porous material and metal ion are kneaded
1:5:25-30 is mixed.
6. the preparation method of purple sweet potato special mildewproof high moisture-inhibiting preservative film according to claim 1, it is characterised in that: described
CO2The preparation method of absorbent is to assist porous material active carbon that analcime, aperture are 0.5-1.7nm by weight 1:1
It for material, is crushed, porous powder of 200 mesh more but less than 300 mesh is made, then add trace metal ion magnesium, nickel, it will
At porous powder, then by weight with metal-chelator EDTA, matrix resin porous material and metal ion are kneaded
1:5:25-30 is mixed.
7. the preparation method of purple sweet potato special mildewproof high moisture-inhibiting preservative film according to claim 1, it is characterised in that: described
Coupling agent is silane coupling agent, and the sprout inhibitor is cinnamic acid, abscisic acid, is injected to pigment according to weight ratio 1:1 and helps
In agent, the thickener is aluminum stearate thickener.The antioxidant is antioxidant 1076.
8. the preparation method of purple sweet potato special mildewproof high moisture-inhibiting preservative film according to claim 1, it is characterised in that: the hair
Bud inhibition agent is cinnamic acid, abscisic acid, according to weight ratio 1:1.
9. the preparation method of purple sweet potato special mildewproof high moisture-inhibiting preservative film according to claim 1, it is characterised in that: the spray
It applies with a thickness of 1-10 microns.
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| CN201611032505.1A CN106750453B (en) | 2016-11-17 | 2016-11-17 | Purple sweet potato, sweet potato, yam bean potato anti-corrosion sprout inhibition preservative film |
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| CN201611032505.1A CN106750453B (en) | 2016-11-17 | 2016-11-17 | Purple sweet potato, sweet potato, yam bean potato anti-corrosion sprout inhibition preservative film |
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| CN107857921A (en) * | 2017-10-11 | 2018-03-30 | 中国药科大学 | A kind of preservation method of mushroom |
| CN107964249A (en) * | 2017-12-25 | 2018-04-27 | 湖南宇山玉月农业科技有限公司 | A kind of sweet potato potato seed sterilizes film |
| CN108059759A (en) * | 2018-02-01 | 2018-05-22 | 张�浩 | A kind of nanometer of flexible film and preparation method thereof of spraying |
| CN108503932A (en) * | 2018-05-11 | 2018-09-07 | 俞锃 | A kind of fresh-keeping particle and preparation method thereof for manufacturing film or plastic uptake sheet material |
| CN111838306A (en) * | 2020-07-20 | 2020-10-30 | 河南工业大学 | Potato sprout inhibitor and preparation method and use method thereof |
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|---|---|---|---|---|
| CN101485353A (en) * | 2009-02-27 | 2009-07-22 | 浙江大学 | Modified Fe-containing ethylene-absorbing agent and preparation method thereof |
| CN103865160A (en) * | 2014-01-23 | 2014-06-18 | 红河州和源农业开发有限公司 | Special fruit bag for pomegranate and preparation method of fruit bag |
| CN104823973A (en) * | 2015-05-22 | 2015-08-12 | 天津农学院 | Application of trans-2-nonenal to preparation of plant preservative |
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2016
- 2016-11-17 CN CN201611032505.1A patent/CN106750453B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485353A (en) * | 2009-02-27 | 2009-07-22 | 浙江大学 | Modified Fe-containing ethylene-absorbing agent and preparation method thereof |
| CN103865160A (en) * | 2014-01-23 | 2014-06-18 | 红河州和源农业开发有限公司 | Special fruit bag for pomegranate and preparation method of fruit bag |
| CN104823973A (en) * | 2015-05-22 | 2015-08-12 | 天津农学院 | Application of trans-2-nonenal to preparation of plant preservative |
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| CN106750453A (en) | 2017-05-31 |
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