CN108244231A - Nanometer fruits and vegetables fresh-keeping film-coating agent and its preparation method and application - Google Patents
Nanometer fruits and vegetables fresh-keeping film-coating agent and its preparation method and application Download PDFInfo
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- CN108244231A CN108244231A CN201810154024.0A CN201810154024A CN108244231A CN 108244231 A CN108244231 A CN 108244231A CN 201810154024 A CN201810154024 A CN 201810154024A CN 108244231 A CN108244231 A CN 108244231A
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 84
- 239000007888 film coating Substances 0.000 title claims abstract description 70
- 238000009501 film coating Methods 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
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- 239000005720 sucrose Substances 0.000 claims abstract description 47
- -1 sucrose fatty ester Chemical class 0.000 claims abstract description 47
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 claims abstract description 46
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- 239000004334 sorbic acid Substances 0.000 claims abstract description 46
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000004203 carnauba wax Substances 0.000 claims abstract description 45
- 239000000908 ammonium hydroxide Substances 0.000 claims abstract description 44
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000002253 acid Substances 0.000 claims abstract description 34
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- 235000009434 Actinidia chinensis Nutrition 0.000 description 1
- 235000009436 Actinidia deliciosa Nutrition 0.000 description 1
- 241000207199 Citrus Species 0.000 description 1
- 240000008067 Cucumis sativus Species 0.000 description 1
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 description 1
- 235000016623 Fragaria vesca Nutrition 0.000 description 1
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- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 1
- 244000270834 Myristica fragrans Species 0.000 description 1
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- 235000014643 Orbignya martiana Nutrition 0.000 description 1
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- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
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- 240000006365 Vitis vinifera Species 0.000 description 1
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- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 229940074046 glyceryl laurate Drugs 0.000 description 1
- AHAREKHAZNPPMI-UHFFFAOYSA-N hexa-1,3-diene Chemical compound CCC=CC=C AHAREKHAZNPPMI-UHFFFAOYSA-N 0.000 description 1
- 235000006486 human diet Nutrition 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
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- 235000021049 nutrient content Nutrition 0.000 description 1
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- 235000016709 nutrition Nutrition 0.000 description 1
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- 239000003346 palm kernel oil Substances 0.000 description 1
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Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Storage Of Fruits Or Vegetables (AREA)
Abstract
The present invention provides a kind of nanometer fruits and vegetables fresh-keeping film-coating agents and its preparation method and application, are related to postharvest technology of fruits and vegetables field, and the preserving fruit and vegetable utilizing plastics include following component according to the mass fraction：25 35 parts of Brazil wax, 48 parts of nutmeg acid, 0.5 1.5 parts of sucrose fatty ester, 0.1 1 parts of sorbic acid, 120 180 parts of 26 parts of ammonium hydroxide and water, alleviating existing use chemical preservative progress preserving fruit and vegetable utilizing, there are healthy hidden dangers, the technical issues of extensive preserving fruit and vegetable utilizing demand can not be met using crude antistaling agent, the present invention passes through Brazil wax, myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinated, nanometer fruits and vegetables fresh-keeping film-coating agent is made, stable homogeneous, with excellent bacteriostasis, fruits and vegetables weightlessness can be effectively reduced, inhibit fruits and vegetables respiratory rate, reduce rotting rate, keep fruit-vegetable quality, Shelf-life, and it can mass produce, it has broad application prospects.
Description
Technical field
The present invention relates to postharvest technology of fruits and vegetables field, more particularly, to a kind of nanometer fruits and vegetables fresh-keeping film-coating agent and its preparation side
Method and application.
Background technology
Fruit vegetable nutrient value is high and nutrient content enriches, and is the chief component of human diet nutrition, but after adopting
Easily there is phenomena such as dehydration is wilted, dimness changes colour, rots.At present, in China vegetables there are about 80,000,000 tons, water every year
Fruit is rotted, and postharvest fruit and vegetable loss late is up to 20-40%, loses nearly 80,000,000,000 yuan of total value.Storage fruit and vegetable is vegetable and fruit life
The problem of most important in production, storage and sales section.
Being currently used for the antistaling agent of fruit vegetables storing mainly has chemical preservative and crude antistaling agent, chemical preservative sterilization effect
Fruit is good but because toxicity greatly has health certain harmfulness, using being restricted, crude antistaling agent small toxicity, but yield
It is small, can not meet the needs of extensive preserving fruit and vegetable utilizing.
In view of this, it is special to propose the present invention.
Invention content
The purpose of the present invention is to provide a kind of nanometer fruits and vegetables fresh-keeping film-coating agent, with alleviate it is existing using chemical preservative into
Row preserving fruit and vegetable utilizing is there are healthy hidden danger, the technical issues of can not meeting extensive preserving fruit and vegetable utilizing demand using crude antistaling agent.
Nanometer fruits and vegetables fresh-keeping film-coating agent provided by the invention, including following component according to the mass fraction：Brazil wax
25-35 parts, 4-8 parts of nutmeg acid, 0.5-1.5 parts of sucrose fatty ester, 0.1-1 parts of sorbic acid, 2-6 parts of ammonium hydroxide and water 120-
180 parts.
Further, the nanometer fruits and vegetables fresh-keeping film-coating agent includes following component according to the mass fraction：Brazil wax
28-32 parts, 5-7 parts of nutmeg acid, 0.8-1.2 parts of sucrose fatty ester, 0.2-0.8 parts of sorbic acid, 3-5 parts of ammonium hydroxide and water 140-
160 parts.
Further, the nanometer fruits and vegetables fresh-keeping film-coating agent includes following component according to the mass fraction：Brazil wax
29-31 parts, 5.5-6.5 parts of nutmeg acid, 0.9-1.1 parts of sucrose fatty ester, 0.2-0.5 parts of sorbic acid, 4-5 parts of ammonium hydroxide and water
150-160 parts.
Further, the nanometer fruits and vegetables fresh-keeping film-coating agent is in use, fruits and vegetables are immersed in nanometer fruits and vegetables fresh-keeping film-coating agent
20-60s, after taking-up, naturally dry.
The second object of the present invention is to provide the preparation method of above-mentioned nanometer fruits and vegetables fresh-keeping film-coating agent, including walking as follows
Suddenly：
Brazil wax, nutmeg acid, sucrose fatty ester, sorbic acid and ammonium hydroxide and water are mixed evenly, that is, made
Obtain nanometer fruits and vegetables fresh-keeping film-coating agent.
Further, the preparation method of the nanometer fruits and vegetables fresh-keeping film-coating agent, includes the following steps：
First Brazil wax, nutmeg acid, sucrose fatty ester, sorbic acid and ammonium hydroxide are mixed evenly, then and water
It is mixed evenly, obtains nanometer fruits and vegetables fresh-keeping film-coating agent.
Further, the preparation method of the nanometer fruits and vegetables fresh-keeping film-coating agent, includes the following steps：
(a) by moisture into first part of water and second part of water；
(b) first Brazil wax, nutmeg acid, sucrose fatty ester, ammonium hydroxide, sorbic acid and first part of water are mixed, and
It is mixed evenly under oil bath, obtains mixture；
(c) second part of moisture is repeatedly added in the mixture that (b) is obtained, be mixed evenly, obtain nanometer fruits and vegetables guarantor
Fresh plastics.
Further, in step (a), the mass ratio of first part of water and second part of water is 1:(8-15), preferably 1:(8-
10)。
Further, in step (b), the temperature of oil bath is 110-120 DEG C, and the oil bath time is 25-35min.
The third object of the present invention is to provide application of the above-mentioned nanometer fruits and vegetables fresh-keeping film-coating agent in preserving fruit and vegetable utilizing.
The present invention passes through Brazil wax, myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinated, system
Into nanometer fruits and vegetables fresh-keeping film-coating agent, not only stable homogeneous, has excellent bacteriostasis, and effectively reduces fruits and vegetables weightlessness, suppression
Fruits and vegetables respiratory rate processed keeps the appearance luster of fruits and vegetables, reduces rotting rate, keeps fruit-vegetable quality, Shelf-life, while this hair
The nanometer fruits and vegetables fresh-keeping film-coating agent safety and environmental protection of bright offer without any poisonous and harmful element, will not cause health bad
It influences, and can mass produce, can effectively meet preserving fruit and vegetable utilizing demand, have broad application prospects.
The preparation method of nanometer fruits and vegetables fresh-keeping film-coating agent provided by the invention, it is simple for process, it is easy to operate, suitable for industry
Change big production, production efficiency can be effectively improved.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person, the condition suggested according to normal condition or manufacturer carry out.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
According to an aspect of the present invention, the present invention provides a kind of nanometer fruits and vegetables fresh-keeping film-coating agent, including pressing mass parts
The following component of number meter：25-35 parts of Brazil wax, 4-8 parts of nutmeg acid, 0.5-1.5 parts of sucrose fatty ester, sorbic acid
0.1-1 parts, 120-180 parts of 2-6 parts of ammonium hydroxide and water.
In the present invention, the typical but non-limiting mass fraction of Brazil wax as 25,25.5,26,26.5,27,
27.5th, 28,28.5,29,29.5,30,30.5,31,31.5,32,32.5,33,33.5,34,34.5 or 35.
Brazil wax be as the wax obtained by babassu leaf, it is non-toxic and tasteless, easily emulsify, there is excellent Oil keeping.
The typical but non-limiting mass fraction of nutmeg acid as 4,4.2,4.4,4.5,4.6,4.8,5,5.2,
5.4th, 5.5,5.6,5.8,6,6.2,6.4,6.5,6.6,6.8,7,7.2,7.4,7.5,7.6,7.8 or 8 parts.
Nutmeg acid is also known as tetradecanoic acid, is a kind of saturated fatty acid, is made from coconut oil, palm-kernel oil.
The typical but non-limiting mass fraction of sucrose fatty ester as 0.5,0.55,0.6,0.65,0.7,0.75,
0.8th, 0.85,0.9,0.95,1,1.05,1.1,1.15,1.2,1.25,1.3,1.35,1.4,1.45 or 1.5 part.
Sucrose fatty ester is the simple substance or mixture generated by sucrose and aliphatic acid through esterification, non-toxic and tasteless,
Easily biological-degradable.
The typical but non-limiting mass fraction of sorbic acid as 0.1,0.15,0.2,0.25,0.3,0.35,0.4,
0.45th, 0.5,0.55,0.6,0.65,0.7,0.75,0.8,0.85,0.9,0.95 or 1 part.
Sorbic acid also known as hexadiene acid or Sorbic Acid, have inhibiting effect to yeast, mould and many fungies.
In the present invention, ammonium hydroxide is pure to analyze, can from commercially available purchase, typical but non-limiting mass fraction as 2,
2.2、2.4、2.5、2.6、2.8、3、3.2、3.4、3.5、3.6、3.8、4、4.2、4.4、4.5、4.6、4.8、5、5.2、5.4、
5.5th, 5.6,5.8 or 6 parts.
In the present invention, water is deionized water, typical but non-limiting mass fraction as 120,125,130,
135th, 140,145,150,155,160,165,170,175 or 180 parts.
The present invention passes through Brazil wax, myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinated, system
Into nanometer fruits and vegetables fresh-keeping film-coating agent, not only stable homogeneous, has excellent bacteriostasis, and effectively reduces fruits and vegetables weightlessness, suppression
Fruits and vegetables respiratory rate processed keeps the appearance luster of fruits and vegetables, reduces rotting rate, keeps fruit-vegetable quality, Shelf-life, while this hair
The nanometer fruits and vegetables fresh-keeping film-coating agent safety and environmental protection of bright offer without any poisonous and harmful element, will not cause health bad
It influences, and can mass produce, can effectively meet preserving fruit and vegetable utilizing demand, have broad application prospects.
In the preferred embodiment of the present invention, nanometer fruits and vegetables fresh-keeping film-coating agent by fruits and vegetables in use, immerse nanometer
20-60s in fruit and vegetable coating agent, after taking-up, naturally dry.
The present invention typical but non-limiting embodiment in, immersion time of the fruits and vegetables in plastics as 20s,
22s、25s、26s、28s、30s、32s、34s、35s、36s、38s、40s、42s、44s、45s、46s、48s、50s、52s、54s、
55s, 56s, 58s or 60s.
The application method of nanometer fruits and vegetables fresh-keeping film-coating agent provided by the invention is simple and efficient, and will not fruits and vegetables be caused with bad shadow
It rings, and has saved mass energy.
According to the second aspect of the invention, the present invention provides the preparation method of above-mentioned nanometer fruits and vegetables fresh-keeping film-coating agent,
Include the following steps：
Brazil wax, nutmeg acid, sucrose fatty ester, sorbic acid and ammonium hydroxide and water are mixed evenly, that is, made
Obtain nanometer fruits and vegetables fresh-keeping film-coating agent.
The preparation method of nanometer fruits and vegetables fresh-keeping film-coating agent provided by the invention, it is simple for process, it is easy to operate, suitable for industry
Change big production, production efficiency can be effectively improved.
In the preferred embodiment of the present invention, the preparation method of nanometer fruits and vegetables fresh-keeping film-coating agent, including walking as follows
Suddenly：
First Brazil wax, nutmeg acid, sucrose fatty ester, sorbic acid and ammonium hydroxide are mixed evenly, then and water
It is mixed evenly, obtains nanometer fruits and vegetables fresh-keeping film-coating agent.
By first by Brazil wax, nutmeg acid, sucrose fatty ester and ammonium hydroxide be mixed it is even after, then with water be mixed
Uniformly, to improve the uniform particle diameter of nanometer fruits and vegetables antistaling agent and bin stability.
In the preferred embodiment of the present invention, the preparation method of nanometer fruits and vegetables fresh-keeping film-coating agent, including walking as follows
Suddenly：
(a) by moisture into first part of water and second part of water；
(b) first Brazil wax, nutmeg acid, sucrose fatty ester, ammonium hydroxide, sorbic acid and first part of water are mixed, and
It is mixed evenly under oil bath, obtains mixture；
(c) it by second part of water, adds in the mixture that (b) is obtained, is mixed evenly several times, obtain nanometer fruits and vegetables guarantor
Fresh plastics.
By moisture into first part of water and second part of water, and first by Brazil wax, nutmeg acid, sucrose fatty ester, ammonia
Water, sorbic acid first mix, and be mixed evenly under oil bath with first part of water, add second part of water and stir evenly, obtain
Uniform particle diameter, stable in storage nanometer fruits and vegetables fresh-keeping film-coating agent.
In the preferred embodiment of the present invention, in step (a), the mass ratio of first part of water and second part of water is
1:(8-15), preferably 1：(8-10).
In the typical but non-limiting embodiment of the present invention, the quality of first part of water and second part of water is such as 1:
8、1:8.5、1:9、1:9.5、1:10、1:11、1:12、1:13、1:14 or 1:15.
When the mass ratio of first part of water and second part of water is 1:When (8-15), made nanometer fruits and vegetables fresh-keeping film-coating agent
Uniform particle diameter and bin stability are excellent, especially when the mass ratio of first part of water and second part of water is 1:When (8-10),
The uniform particle diameter and bin stability of made nanometer fruits and vegetables fresh-keeping film-coating agent are more preferably.
In the preferred embodiment of the present invention, in step (b) and step (c), first part of water and second part of water
It is added in reaction system after being both heated to boiling water, in favor of the generation of nanometer system.
In the preferred embodiment of the present invention, in step (b), the temperature of oil bath is 110-120 DEG C, during oil bath
Between be 25-35min.
By using oil bath heating, with accelerate Brazil wax, nutmeg acid, sucrose fatty ester, ammonium hydroxide, sorbic acid and
Solution rate of the ammonium hydroxide in first part of water accelerates preparation efficiency.
In the typical but non-limiting embodiment of the present invention, the temperature of oil bath as 110,111,112,113,
114th, 115,116,117,118,119 or 120 DEG C.
In the typical but non-limiting embodiment of the present invention, time of oil bath as 25,25.5,26,26.5,
27th, 27.5,28,28.5,29,29.5,30,30.5,31,31.5,32,32.5,33,33.5,34,34.5 or 35min.
In the preferred embodiment of the present invention, step (b) and step (c) carry out in closed reactor, with
The volatilization of ammonium hydroxide is avoided, keeps the stability of reaction.
In the preferred embodiment of the present invention, the mixing speed in step (b) is 40-60rpm.
In the typical but non-limiting embodiment of the present invention, mixing speed in step (b) as 40,41,42,
43rd, 44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59 or 60rpm.
In the preferred embodiment of the present invention, the mixing speed in step (c) is 200-600rpm.
In the typical but non-limiting embodiment of the present invention, in step (c) mixing speed as 200,220,
250th, 280,300,320,350,380,400,420,450,480,500,520,550,580 or 600rpm.
In the preferred embodiment of the present invention, in step (c), second part of moisture is added in into step (b) three times
In obtained mixture, so that the more stable grain size of nanometer fruits and vegetables fresh-keeping film-coating agent dispersion is more uniform.
According to the third aspect of the present invention, the present invention provides above-mentioned nanometer fruits and vegetables fresh-keeping film-coating agent in preserving fruit and vegetable utilizing
Application.
In the present invention, fruits and vegetables include sweet potato, citrus, loquat, grape, tomato, cucumber, apple, pears, green jujube, Kiwi berry
With strawberry etc..
Technical solution provided by the invention is further described with reference to embodiment and comparative example.
Embodiment 1
A kind of nanometer fruits and vegetables fresh-keeping film-coating agent is present embodiments provided, is made of following component according to the mass fraction：Bar
120 parts of western 25 parts of palm wax, 8 parts of nutmeg acid, 0.5 part of sucrose fatty ester, 0.1 part of sorbic acid, 6 parts of ammonium hydroxide and water.
Embodiment 2
A kind of nanometer fruits and vegetables fresh-keeping film-coating agent is present embodiments provided, is made of following component according to the mass fraction：Bar
180 parts of western 35 parts of palm wax, 4 parts of nutmeg acid, 1.5 parts of sucrose fatty ester, 1 part of sorbic acid, 2 parts of ammonium hydroxide and water.
Embodiment 3
A kind of nanometer fruits and vegetables fresh-keeping film-coating agent is present embodiments provided, is made of following component according to the mass fraction：Bar
160 parts of western 32 parts of palm wax, 5 parts of nutmeg acid, 1.2 parts of sucrose fatty ester, 0.8 part of sorbic acid, 3 parts of ammonium hydroxide and water.
Embodiment 4
A kind of nanometer fruits and vegetables fresh-keeping film-coating agent is present embodiments provided, is made of following component according to the mass fraction：Bar
140 parts of western 28 parts of palm wax, 7 parts of nutmeg acid, 0.8 part of sucrose fatty ester, 0.2 part of sorbic acid, 5 parts of ammonium hydroxide and water.
Embodiment 5
A kind of nanometer fruits and vegetables fresh-keeping film-coating agent is present embodiments provided, is made of following component according to the mass fraction：Bar
150 parts of western 29 parts of palm wax, 6.5 parts of nutmeg acid, 0.9 part of sucrose fatty ester, 0.3 part of sorbic acid, 5 parts of ammonium hydroxide and water.
Embodiment 6
A kind of nanometer fruits and vegetables fresh-keeping film-coating agent is present embodiments provided, is made of following component according to the mass fraction：Bar
155 parts of western 31 parts of palm wax, 5.5 parts of nutmeg acid, 1.1 parts of sucrose fatty ester, 0.5 part of sorbic acid, 4 parts of ammonium hydroxide and water.
Embodiment 7
A kind of nanometer fruits and vegetables fresh-keeping film-coating agent is present embodiments provided, is made of following component according to the mass fraction：Bar
155 parts of western 30 parts of palm wax, 6 parts of nutmeg acid, 1 part of sucrose fatty ester, 0.3 part of sorbic acid, 4.2 parts of ammonium hydroxide and water.
Embodiment 8
A kind of preparation method of nanometer fruits and vegetables fresh-keeping film-coating agent is present embodiments provided, is carried out in accordance with the following steps：
(a) by moisture into first part of water and second part of water, the mass ratio of first part of water and second part of water is 1:10, and by
A water and second part of water are both heated to boiling water, spare；
(b) first by Brazil wax, nutmeg acid, sucrose fatty ester, ammonium hydroxide, sorbic acid and first part of water in reaction kettle
Middle mixing, and heating 30min is mixed at 115 DEG C of oil bath, mixing speed 50rpm obtains mixture；
(c) second part of moisture is added in three times in the mixture that (b) is obtained, be mixed, after adding in first time boiling water
Mixing speed is 200rpm, and the mixing speed added in after second of boiling water is 250rpm, adds in the stirring speed after third time boiling water
It spends for 600rpm, boiling water interval 1min is added in three times, stops heating after being uniformly mixed, and continuously decreases mixing speed to stopping
Only, nanometer fruits and vegetables fresh-keeping film-coating agent is obtained.
Comparative example 1
This comparative example provides a kind of preserving fruit and vegetable utilizing plastics, and the difference lies in do not add this comparative example with embodiment 7
Enter sorbic acid.
Comparative example 2
This comparative example provides a kind of preserving fruit and vegetable utilizing plastics, and the difference lies in use this comparative example with embodiment 7
Glyceryl laurate ester substitutes sucrose fatty ester.
Comparative example 3
This comparative example provides a kind of preserving fruit and vegetable utilizing plastics, and the difference lies in Brazil with embodiment 7 for this comparative example
200 parts of 20 parts of palm wax, 10 parts of nutmeg acid, 0.1 part of sucrose fatty ester, 1.5 parts of sorbic acid, 0.5 part of ammonium hydroxide and water.
Comparative example 4
This comparative example provides a kind of preserving fruit and vegetable utilizing plastics, and the difference lies in Brazil with embodiment 7 for this comparative example
100 parts of 40 parts of palm wax, 2 parts of nutmeg acid, 2 parts of sucrose fatty ester, 0.01 part of sorbic acid, 10 parts of ammonium hydroxide and water.
The preparation method for the preserving fruit and vegetable utilizing plastics that above-mentioned comparative example 1-4 is provided is same as Example 7, no longer superfluous herein
It states.
Test example 1
By the nanometer fruits and vegetables coating antistaling agent that embodiment 1-7 is provided and the preserving fruit and vegetable utilizing plastics that comparative example 1-4 is provided into
Row pH value, viscosity, grain size, the coefficient of dispersion, Zeta potential, stable storing phase and biocidal property test, test result is as follows table 1 and table
Shown in 2.
1 fruit and vegetable coating antistaling agent performance data of table measures table
As it can be seen from table 1 the nanometer fruits and vegetables fresh-keeping film-coating agent that embodiment 1-7 is provided, pH value is glued between 9.5-10
Degree between 87.5-88.5, grain size between 55-65nm, PDI between 0.19-0.20, Zata current potentials (- 50)-(-
48) between, the stably dispersing phase, this illustrated the nanometer fruits and vegetables fresh-keeping film-coating agent that 1-7 of the embodiment of the present invention is provided at 12 months or more
In alkalescent, the physiology of fruits and vegetables will not be had an impact, while modest viscosity, uniform particle diameter, stably dispersing, the stable storing phase
It is long, it can effectively keep fruit-vegetable quality.
By the comparison of embodiment 1-7 and comparative example 1-2 as can be seen that the nanometer fruits and vegetables that 1-7 of the embodiment of the present invention is provided
Fresh-keeping film-coating agent passes through Brazil wax, myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinated, grain size
More uniform, dispersion is more stable, and the stable storing phase is longer, can preferably keep fruit-vegetable quality, Shelf-life.
By the comparison of embodiment 1-7 and comparative example 3-4 as can be seen that the nanometer fruits and vegetables that 1-7 of the embodiment of the present invention is provided
Fresh-keeping film-coating agent passes through the Brazil wax of extra fine quality number, myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water
Nanometer fruits and vegetables fresh-keeping film-coating agent is made in coordinated, and grain size is more uniform, and dispersion is more stable, and the stably dispersing phase is longer.
2 preserving fruit and vegetable utilizing plastics bacteria resistance function performance test table of table
From table 2 it can be seen that the nanometer fruits and vegetables fresh-keeping film-coating agent that 1-7 of the embodiment of the present invention is provided has good antibacterial energy
Power has good inhibition to saccharomycete, aspergillus niger and Penicillium digitatum, can effectively reduce the rotting rate of fruits and vegetables, keeps fruit
Vegetable quality.
From the comparison of embodiment 1-7 and comparative example 1-2 as can be seen that the nanometer fruits and vegetables that 1-7 of the embodiment of the present invention is provided are protected
Fresh plastics are by Brazil wax, myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinated, to yeast
Bacterium, aspergillus niger and Penicillium digitatum have good inhibition more preferably.
From the comparison of embodiment 1-7 and comparative example 3-4 as can be seen that the nanometer fruits and vegetables that 1-7 of the embodiment of the present invention is provided are protected
Fresh plastics are assisted by the Brazil wax of extra fine quality number, myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water
With cooperation, there is good inhibition more preferably to saccharomycete, aspergillus niger and Penicillium digitatum.
Test example 2
Select that size, color and luster, form, maturity are basically identical, and have no mechanical damage, the sweet potato 120kg of no disease and pests harm, with
Machine is divided into 12 groups, respectively 1-12 groups, and every group of 10kg, wherein 1-7 groups use the nanometer fruits and vegetables coating-film fresh-keeping that embodiment 1-7 is provided
Agent carries out Preservation Treatment, and 8-11 groups carry out Preservation Treatment using the fruit and vegetable coating antistaling agent that comparative example 1-4 is provided, and 12 groups are blank
Above-mentioned 12 groups of sweet potatoes without Preservation Treatment, are then put into the air regulating box of 360L, 20 DEG C seal at room temperature by control group
For 24 hours, divulge information 0.5h, is refrigerated under the conditions of 4 DEG C, after preservation 30 days, measures the weight-loss ratio of 12 groups of sweet potatoes, respiratory rate, hard respectively
Degree, rotting rate and sensory evaluation, test data are as shown in table 3.
The fresh keeping property tables of data of 3 sweet potato of table
Note：Sensory evaluation is scored according to following standard, is incited somebody to action according to mouthfeel by 8 bright trained evaluation and test Shi Zucheng
It is divided into, in it is upper, under, lower 5 grades, grade scale evaluates according to ten point system, and wherein flavor 4 divides, meat 3 divides, juice 2
Point, under fragrance 1 divides, total score is less than 5.0,5.0-6.4 be under, during 6.5-7.9 is, 8.0-8.9 be on, 9.0-
10.0 it is upper.
From table 3 it is observed that 1-7 of the embodiment of the present invention provide nanometer fruits and vegetables fresh-keeping film-coating agent can effectively reduce it is sweet
Potato is weightless, inhibits sweet potato respiratory rate, keeps the appearance luster of sweet potato, reduces rotting rate, keeps sweet potato quality.
By the comparison of embodiment 1-7 and comparative example 1-2 can be seen that 1-7 of the embodiment of the present invention by Brazil wax,
It is sweet in reduction that nanometer fruits and vegetables fresh-keeping film-coating agent is made in myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinated
Potato weight-loss ratio inhibits sweet potato respiratory rate, keeps sweet potato appearance luster, reducing rotting rate and keep sweet potato quality aspect more excellent
It is different.
1-7 of the embodiment of the present invention can be seen that by the comparison of embodiment 1-7 and comparative example 3-4 and pass through extra fine quality part
Several Brazil wax, myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinateds, it is fresh-keeping to be made nanometer fruits and vegetables
Plastics are reducing sweet potato weight-loss ratio, are inhibiting sweet potato respiratory rate, keep sweet potato appearance luster, reduce rotting rate and keep sweet potato
In terms of quality more preferably.
Test example 3
It is basically identical to select size, color and luster, form, eighty per cant maturity, and have no mechanical damage, the loquat of no disease and pests harm
120kg, is randomly divided into 12 groups, respectively 1-12 groups, and every group of 10kg, wherein 1-7 groups use the nanometer fruits and vegetables that embodiment 1-7 is provided
Coating antistaling agent progress Preservation Treatment, the fruit and vegetable coating antistaling agent progress Preservation Treatment that 8-11 groups are provided using comparative example 1-4,12
Group is blank control group, without Preservation Treatment, is then put into above-mentioned 12 groups of loquats in the air regulating box of 360L, 20 DEG C of room temperatures
For 24 hours, divulge information 0.5h, is refrigerated under the conditions of 4 DEG C for lower sealing, after preservation 30 days, measures weight-loss ratio, the breathing speed of 12 groups of loquats respectively
Rate, hardness, rotting rate and sensory evaluation, test data are as shown in table 4.
The fresh keeping property tables of data of 4 loquat of table
Note：The method of sensory evaluation is with test example 2, and details are not described herein.
As can be seen from Table 4, the nanometer fruits and vegetables fresh-keeping film-coating agent that 1-7 of the embodiment of the present invention is provided can effectively reduce Pi
Rake is weightless, inhibits loquat respiratory rate, keeps the appearance luster of loquat, reduces rotting rate, keeps loquat quality.
By the comparison of embodiment 1-7 and comparative example 1-2 can be seen that 1-7 of the embodiment of the present invention by Brazil wax,
Myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinated are made nanometer fruits and vegetables fresh-keeping film-coating agent and are reducing Pi
Rake weight-loss ratio inhibits loquat respiratory rate, keeps loquat appearance luster, reducing rotting rate and keep loquat quality aspect more excellent
It is different.
1-7 of the embodiment of the present invention can be seen that by the comparison of embodiment 1-7 and comparative example 3-4 and pass through extra fine quality part
Several Brazil wax, myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinateds, it is fresh-keeping to be made nanometer fruits and vegetables
Plastics are reducing loquat weight-loss ratio, are inhibiting loquat respiratory rate, keep loquat appearance luster, reduce rotting rate and keep loquat
In terms of quality more preferably.
Test example 4
Select that size, color and luster, form, maturity are basically identical, and have no mechanical damage, the ponkan 120kg of no disease and pests harm, with
Machine is divided into 12 groups, respectively 1-12 groups, and every group of 10kg, wherein 1-7 groups use the nanometer fruits and vegetables coating-film fresh-keeping that embodiment 1-7 is provided
Agent carries out Preservation Treatment, and 8-11 groups carry out Preservation Treatment using the fruit and vegetable coating antistaling agent that comparative example 1-4 is provided, and 12 groups are blank
Above-mentioned 12 groups of ponkans without Preservation Treatment, are then put into the air regulating box of 360L, 20 DEG C seal at room temperature by control group
For 24 hours, divulge information 0.5h, is refrigerated under the conditions of 4 DEG C, after preservation 30 days, measures the weight-loss ratio of 12 groups of ponkans, respiratory rate, hard respectively
Degree, rotting rate and sensory evaluation, test data are as shown in table 5.
The fresh keeping property tables of data of 5 ponkan of table
Note：The method of sensory evaluation is with test example 2, and details are not described herein.
As can be seen from Table 5, the nanometer fruits and vegetables fresh-keeping film-coating agent that 1-7 of the embodiment of the present invention is provided can effectively reduce reed
Mandarin orange is weightless, inhibits ponkan respiratory rate and fungus growth, keeps the appearance luster of ponkan, reduces rotting rate, keeps ponkan quality.
By the comparison of embodiment 1-7 and comparative example 1-2 can be seen that 1-7 of the embodiment of the present invention by Brazil wax,
Myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinated are made nanometer fruits and vegetables fresh-keeping film-coating agent and are reducing reed
Mandarin orange weight-loss ratio inhibits ponkan respiratory rate and fungus growth, keeps ponkan appearance luster, reduces rotting rate and keeps ponkan quality
Aspect is more excellent.
1-7 of the embodiment of the present invention can be seen that by the comparison of embodiment 1-7 and comparative example 3-4 and pass through extra fine quality part
Several Brazil wax, myristic acid, sucrose fatty ester, sorbic acid, ammonium hydroxide and water coordinateds, it is fresh-keeping to be made nanometer fruits and vegetables
Plastics are reducing ponkan weight-loss ratio, are inhibiting ponkan respiratory rate and fungus growth, keeping ponkan appearance luster, reducing rotting rate
With holding ponkan quality aspect more preferably.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of nanometer fruits and vegetables fresh-keeping film-coating agent, which is characterized in that including following component according to the mass fraction：Brazil wax
25-35 parts, 4-8 parts of nutmeg acid, 0.5-1.5 parts of sucrose fatty ester, 0.1-1 parts of sorbic acid, 2-6 parts of ammonium hydroxide and water 120-
180 parts.
2. nanometer fruits and vegetables fresh-keeping film-coating agent according to claim 1, which is characterized in that as follows including according to the mass fraction
Component：28-32 parts of Brazil wax, 5-7 parts of nutmeg acid, 0.8-1.2 parts of sucrose fatty ester, 0.2-0.8 parts of sorbic acid, ammonia
140-160 parts of 3-5 parts of water and water.
3. nanometer fruits and vegetables fresh-keeping film-coating agent according to claim 1, which is characterized in that as follows including according to the mass fraction
Component：29-31 parts of Brazil wax, 5.5-6.5 parts of nutmeg acid, 0.9-1.1 parts of sucrose fatty ester, sorbic acid 0.2-0.5
Part, 150-160 parts of 4-5 parts of ammonium hydroxide and water.
4. according to claim 1-3 any one of them nanometer fruits and vegetables fresh-keeping film-coating agents, which is characterized in that in use, by fruits and vegetables
Immerse 20-60s in nanometer fruits and vegetables fresh-keeping film-coating agent, after taking-up, naturally dry.
5. according to the preparation method of claim 1-4 any one of them nanometer fruits and vegetables fresh-keeping film-coating agents, which is characterized in that including such as
Lower step：
Brazil wax, nutmeg acid, sucrose fatty ester, sorbic acid and ammonium hydroxide and water are mixed evenly, obtains and receives
Rice cracker vegetable fresh-keeping film-coating agent.
6. the preparation method of nanometer fruits and vegetables fresh-keeping film-coating agent according to claim 5, which is characterized in that including walking as follows
Suddenly：
First Brazil wax, nutmeg acid, sucrose fatty ester, sorbic acid and ammonium hydroxide are mixed evenly, then mixed with water
It stirs evenly, obtains nanometer fruits and vegetables fresh-keeping film-coating agent.
7. the preparation method of nanometer fruits and vegetables fresh-keeping film-coating agent according to claim 5, which is characterized in that including walking as follows
Suddenly：
(a) by moisture into first part of water and second part of water；
(b) first Brazil wax, nutmeg acid, sucrose fatty ester, ammonium hydroxide, sorbic acid and first part of water are mixed, and in oil
It is mixed evenly under bath, obtains mixture；
(c) second part of moisture is repeatedly added in the mixture that (b) is obtained, be mixed evenly, obtain the fresh-keeping painting of nanometer fruits and vegetables
Film.
8. the preparation method of the nanometer fruits and vegetables fresh-keeping film-coating agent according to right 7, which is characterized in that in step (a), first
The mass ratio of part water and second part of water is 1:(8-15), preferably 1:(8-10).
9. the preparation method of nanometer fruits and vegetables fresh-keeping film-coating agent according to claim 7, which is characterized in that in step (b),
The temperature of oil bath is 110-120 DEG C, and the oil bath time is 25-35min.
10. according to application of the claim 1-4 any one of them nanometer fruits and vegetables fresh-keeping film-coating agents in preserving fruit and vegetable utilizing.
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| WO2021187970A1 (en) * | 2020-03-17 | 2021-09-23 | Margrey Industrial S.A. De C.V. | Wax-based coating for fruit and vegetables |
| CN115399414A (en) * | 2022-03-09 | 2022-11-29 | 山东省食品发酵工业研究设计院 | Formula and production method of fruit nano-film preservative |
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