CN110012936A - A kind of anti-corrosive fresh-keeping material and the preparation method and application thereof - Google Patents
A kind of anti-corrosive fresh-keeping material and the preparation method and application thereof Download PDFInfo
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- CN110012936A CN110012936A CN201910352841.1A CN201910352841A CN110012936A CN 110012936 A CN110012936 A CN 110012936A CN 201910352841 A CN201910352841 A CN 201910352841A CN 110012936 A CN110012936 A CN 110012936A
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- Prior art keywords
- corrosive fresh
- keeping
- keeping material
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- 239000000463 material Substances 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims abstract description 30
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 19
- 229940072107 ascorbate Drugs 0.000 claims abstract description 14
- 235000010323 ascorbic acid Nutrition 0.000 claims abstract description 14
- 239000011668 ascorbic acid Substances 0.000 claims abstract description 14
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims abstract description 13
- 239000004698 Polyethylene Substances 0.000 claims abstract description 13
- FJKROLUGYXJWQN-UHFFFAOYSA-M 4-hydroxybenzoate Chemical compound OC1=CC=C(C([O-])=O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-M 0.000 claims abstract description 11
- 229940001468 citrate Drugs 0.000 claims abstract description 11
- 235000013924 ferrous gluconate Nutrition 0.000 claims abstract description 11
- 239000004222 ferrous gluconate Substances 0.000 claims abstract description 11
- 229960001645 ferrous gluconate Drugs 0.000 claims abstract description 11
- VRIVJOXICYMTAG-IYEMJOQQSA-L iron(ii) gluconate Chemical compound [Fe+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O VRIVJOXICYMTAG-IYEMJOQQSA-L 0.000 claims abstract description 11
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- -1 polyethylene Polymers 0.000 claims abstract description 9
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 30
- 239000002994 raw material Substances 0.000 claims description 22
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000005453 pelletization Methods 0.000 claims description 6
- 239000003755 preservative agent Substances 0.000 claims description 6
- 230000002335 preservative effect Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 230000001404 mediated effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229920013716 polyethylene resin Polymers 0.000 claims description 5
- 235000009754 Vitis X bourquina Nutrition 0.000 claims description 4
- 235000012333 Vitis X labruscana Nutrition 0.000 claims description 4
- 235000014787 Vitis vinifera Nutrition 0.000 claims description 4
- FNAQSUUGMSOBHW-UHFFFAOYSA-H calcium citrate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O FNAQSUUGMSOBHW-UHFFFAOYSA-H 0.000 claims description 4
- 239000001354 calcium citrate Substances 0.000 claims description 4
- 238000004898 kneading Methods 0.000 claims description 4
- 239000001509 sodium citrate Substances 0.000 claims description 4
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 4
- 235000013337 tricalcium citrate Nutrition 0.000 claims description 4
- NAVWVHRQSDHCHD-UHFFFAOYSA-N 2-hydroxypropane-1,2,3-tricarboxylic acid;potassium Chemical group [K].OC(=O)CC(O)(C(O)=O)CC(O)=O NAVWVHRQSDHCHD-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- NAOLWIGVYRIGTP-UHFFFAOYSA-N 1,3,5-trihydroxyanthracene-9,10-dione Chemical compound C1=CC(O)=C2C(=O)C3=CC(O)=CC(O)=C3C(=O)C2=C1 NAOLWIGVYRIGTP-UHFFFAOYSA-N 0.000 claims 1
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 claims 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 1
- 229930003268 Vitamin C Natural products 0.000 claims 1
- 240000006365 Vitis vinifera Species 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 235000019154 vitamin C Nutrition 0.000 claims 1
- 239000011718 vitamin C Substances 0.000 claims 1
- 235000012055 fruits and vegetables Nutrition 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000002421 anti-septic effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 235000019249 food preservative Nutrition 0.000 abstract description 2
- 239000005452 food preservative Substances 0.000 abstract description 2
- 239000002985 plastic film Substances 0.000 abstract description 2
- 229920006255 plastic film Polymers 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 239000001993 wax Substances 0.000 description 13
- 235000013305 food Nutrition 0.000 description 8
- 235000013399 edible fruits Nutrition 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 4
- 235000006040 Prunus persica var persica Nutrition 0.000 description 3
- 241000219095 Vitis Species 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 244000144730 Amygdalus persica Species 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 239000001508 potassium citrate Substances 0.000 description 2
- 229960002635 potassium citrate Drugs 0.000 description 2
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 description 2
- 235000011082 potassium citrates Nutrition 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- PPASLZSBLFJQEF-RKJRWTFHSA-M sodium ascorbate Substances [Na+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RKJRWTFHSA-M 0.000 description 2
- 235000010378 sodium ascorbate Nutrition 0.000 description 2
- 229960005055 sodium ascorbate Drugs 0.000 description 2
- 235000011083 sodium citrates Nutrition 0.000 description 2
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- GDSOZVZXVXTJMI-SNAWJCMRSA-N (e)-1-methylbut-1-ene-1,2,4-tricarboxylic acid Chemical compound OC(=O)C(/C)=C(C(O)=O)\CCC(O)=O GDSOZVZXVXTJMI-SNAWJCMRSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 241000272173 Calidris Species 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 206010016952 Food poisoning Diseases 0.000 description 1
- 208000019331 Foodborne disease Diseases 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Natural products OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 241000220225 Malus Species 0.000 description 1
- 235000011430 Malus pumila Nutrition 0.000 description 1
- 235000015103 Malus silvestris Nutrition 0.000 description 1
- 240000005809 Prunus persica Species 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical class [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 235000019606 astringent taste Nutrition 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical class OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 description 1
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 description 1
- 229960002216 methylparaben Drugs 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The present invention relates to a kind of anti-corrosive fresh-keeping material and the preparation method and application thereof, the anti-corrosive fresh-keeping material is mixed by polyvinyl resin, p-hydroxybenzoate, nitrite, polyethylene wax, citrate, ascorbate and ferrous gluconate.Beneficial effects of the present invention: anti-corrosive fresh-keeping material of the invention selects some with certain volatile kind from food preservative, by scientific allocation, and it is combined with modern processing of high molecular material technology, it is developed into a kind of film for antiseptic preservation of fruits and vegetables, fruit and vegetable is packed into the plastic film bag made of it, fruit and vegetable can be made to keep fresh and without putrefaction for a long time.
Description
Technical field
The invention belongs to materials processing technology fields, and in particular to a kind of anti-corrosive fresh-keeping material and preparation method thereof with answer
With.
Background technique
Because of food nutriment rich in, these substances can not only provide energy and nutrition abundant to us
Element, it is also deep to be liked by microorganism.Therefore, once a small amount of microbial contamination food, in a short time may be in food
Breeding is mushroomed out, certain bacteriums and fungi can also generate a large amount of toxin, cause the generation of food spoilage and food poisoning.
The problem of anti-corrosive fresh-keeping of fruit and vegetable is long-standing problem people, in order to keep fruits and vegetables fresh, people take various
Method, or even do not stint and addition or impregnate some noxious materials.In fact, there is too many plastic packaging food to contain preservative in supermarket, and
Preservative is one kind controversial in varieties of food items additive, and the frequent exposure and the speech of part " brick man " of media allow people
It worries greatly to the service condition of preservative.
Summary of the invention
It is of the existing technology in order to solve the problems, such as, the present invention provides a kind of anti-corrosive fresh-keeping material and preparation method thereof with
Using.
The object of the present invention is to provide a kind of anti-corrosive fresh-keeping materials.
It is a further object of the present invention to provide the preparation methods of above-mentioned anti-corrosive fresh-keeping material.
Another object of the present invention is to provide the application of above-mentioned anti-corrosive fresh-keeping material.
The anti-corrosive fresh-keeping material of specific embodiment according to the present invention, the anti-corrosive fresh-keeping material is by following raw material system
Standby, the raw material includes: 60-95 parts of polyvinyl resin and from 3-40 parts of volatility anti-corrosive fresh-keeping masterbatch by weight.
The anti-corrosive fresh-keeping material of specific embodiment according to the present invention, wherein the raw material is by weight percentage are as follows: poly-
Vinyl 90% and from volatility anti-corrosive fresh-keeping masterbatch 10%, the masterbatch includes p-hydroxybenzoate, nitrite, poly-
Ethylene waxes, citrate, ascorbate and ferrous gluconate.
The anti-corrosive fresh-keeping material of specific embodiment according to the present invention, wherein the raw material includes: by weight percentage
The anti-corrosive fresh-keeping material of specific embodiment according to the present invention, wherein the raw material includes: by weight percentage
The anti-corrosive fresh-keeping material of specific embodiment according to the present invention, further, the citrate are citric acid
Potassium, calcium citrate or sodium citrate.
The anti-corrosive fresh-keeping material of specific embodiment according to the present invention, further, the ascorbate are anti-bad
Hematic acid sodium, the polyvinyl resin are food-grade polyethylene resin.
The preparation method of the anti-corrosive fresh-keeping material of specific embodiment according to the present invention, the method includes following steps
It is rapid:
(1) preparation of masterbatch: by p-hydroxybenzoate, nitrite, polyethylene wax, citrate, ascorbate,
Ferrous gluconate is mediated, and is plasticized, and is squeezed out, and through drying, cooling, pelletizing after extrusion, forms masterbatch；
(2) masterbatch for obtaining polyvinyl resin and step (1) mixes, and is uniformly mixed up to the anti-corrosive fresh-keeping material.
The preparation method of the anti-corrosive fresh-keeping material of specific embodiment according to the present invention, wherein the time of the kneading
For 4-6min, the temperature of the plasticizing is 95-105 DEG C, and the time of the plasticizing is 25-35s, and the temperature of the extrusion is 110-
130℃。
The preparation method of the anti-corrosive fresh-keeping material of specific embodiment according to the present invention, wherein the partial size of the masterbatch
For 0.5-1mm.
The anti-corrosive fresh-keeping material is preparing the application in preservative film or freshness protection package.
The preparation of masterbatch is prepared using double-screw extruding pelletizing machine.
Polyvinyl resin, abbreviation PE are a kind of aggregated thermoplastic resins obtained of ethylene.Odorless, nontoxic, feel is seemingly
Wax has excellent resistance to low temperature, and chemical stability is good, is resistant to the erosion of most of soda acids (intolerant to oxidizing property
Acid), common solvent is not dissolved under room temperature, water imbibition is small, and electrical insulation capability is excellent.Polyvinyl resin in the present invention using
Food-grade polyethylene resin.
P-hydroxybenzoate is called methylparaben, white crystalline powder or colourless crystallization, is soluble in alcohol, ether and third
Ketone, it is atomic to be dissolved in water, 270-280 DEG C of boiling point.Be mainly used as organic synthesis, food, cosmetics, medicine sterilization antiseptic,
Serve as feed anticorrosion agent.Since it has phenolic hydroxyl structure, so bacteria resistance can be all stronger than benzoic acid, sorbic acid.It is made
It is with mechanism: destroys the cell membrane of microorganism, make intracellular protein denaturation, and can inhibit the respiratory enzyme of microbial cell
With the activity of electron transmission enzyme system.Polyethylene wax, abbreviation PE wax, also known as macromolecule wax abbreviation polyethylene wax.Because its is excellent resistance to
Cold, heat resistance, chemical resistance and wearability and be widely used.In normal production, this part wax is as a kind of addition
Agent can be applied directly in polyolefin processing, it can increase the gloss and processing performance of product.As lubricant, chemical property
Stabilization, electrical property are good.
Ferrous gluconate, relative molecular mass 482.18 can be used as color stabilizer, nutrition fortifier in food, can
By being formed in reduced iron with gluconic acid.The characteristics of ferrous gluconate is bioavailability height, and dissolubility is good in water, flavor
Gentle no astringent taste.
Polyvinyl resin in the present invention is film forming matter；From in volatility anti-corrosive fresh-keeping masterbatch, polyvinyl resin is
Carrier, p-hydroxybenzoate and nitrite are volatility anti-corrosion material, and polyethylene wax is melt index regulator, citric acid
Salt and ascorbate are to help volatilizer, and ferrous gluconate is masterbatch antioxidant.
Compared with prior art, the invention has the following beneficial effects:
(1) anti-corrosive fresh-keeping material of the invention selects some with certain volatile kind, warp from food preservative
Scientific allocation is crossed, and is combined with modern processing of high molecular material technology, a kind of film for antiseptic preservation of fruits and vegetables is developed into,
Fruit and vegetable is packed into the plastic film bag made of it, fruit and vegetable can be made to keep fresh and without putrefaction for a long time.
(2) anti-corrosive fresh-keeping material safety of the invention, it is nontoxic；
(3) after tested, the freshness protection package made of anti-corrosive fresh-keeping material of the invention stores fruit, and storage period appoints than not taking
10 times of extension or more of what measure.
(4) use that fruit antistaling agent or various toxic liquid medicine can be reduced using anti-corrosive fresh-keeping material of the invention, is had
Conducive to the general level of the health for improving human body.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment 1
A kind of anti-corrosive fresh-keeping material is present embodiments provided, is prepared by following raw material, the raw material includes: by weight ratio
Polyvinyl resin 60kg and from volatility anti-corrosive fresh-keeping masterbatch 40kg.
Embodiment 2
A kind of anti-corrosive fresh-keeping material is present embodiments provided, is prepared by following raw material, the raw material includes: by weight ratio
Polyvinyl resin 95kg and from volatility anti-corrosive fresh-keeping masterbatch 5kg.
Embodiment 3
A kind of anti-corrosive fresh-keeping material is present embodiments provided, is prepared by following raw material, the raw material includes: by weight ratio
Polyvinyl resin 90kg and from volatility anti-corrosive fresh-keeping masterbatch 10kg, the masterbatch include p-hydroxybenzoate, nitrite,
Polyethylene wax, citrate, ascorbate and ferrous gluconate.
Embodiment 4
A kind of anti-corrosive fresh-keeping material is present embodiments provided, is prepared by following raw material, the raw material wraps by weight percentage
It includes:
The ascorbate can be sodium ascorbate, and the polyvinyl resin can be food-grade polyethylene resin.
The preparation method of anti-corrosive fresh-keeping material the following steps are included:
(1) preparation of masterbatch: by p-hydroxybenzoate, nitrite, polyethylene wax, citrate, ascorbate,
Ferrous gluconate is mediated, and is plasticized, and is squeezed out, and through drying, cooling, pelletizing after extrusion, forms masterbatch；
(2) masterbatch for obtaining polyvinyl resin and step (1) mixes, and is uniformly mixed up to the anti-corrosive fresh-keeping material.
Embodiment 5
A kind of anti-corrosive fresh-keeping material is present embodiments provided, is prepared by following raw material, the raw material wraps by weight percentage
It includes:
The citrate can be potassium citrate, calcium citrate or sodium citrate.
The preparation method of anti-corrosive fresh-keeping material the following steps are included:
(1) preparation of masterbatch: by p-hydroxybenzoate, nitrite, polyethylene wax, citrate, ascorbate,
Ferrous gluconate is mediated, and is plasticized, and is squeezed out, and through drying, cooling, pelletizing after extrusion, forms masterbatch；The time of the kneading is
4-6min, the temperature of the plasticizing are 95-105 DEG C, and the time of the plasticizing is 25-35s, and the temperature of the extrusion is 110-
130℃；
(2) masterbatch for obtaining polyvinyl resin and step (1) mixes, and is uniformly mixed up to the anti-corrosive fresh-keeping material.
The anti-corrosive fresh-keeping material obtained is put into molding machine, preservative film is made.
Embodiment 6
A kind of anti-corrosive fresh-keeping material is present embodiments provided, is prepared by following raw material, the raw material wraps by weight percentage
It includes:
The citrate is potassium citrate, calcium citrate or sodium citrate；The ascorbate is sodium ascorbate,
The polyvinyl resin is food-grade polyethylene resin.
The preparation method of anti-corrosive fresh-keeping material the following steps are included:
(1) preparation of masterbatch: by p-hydroxybenzoate, nitrite, polyethylene wax, citrate, ascorbate,
Ferrous gluconate is mediated, and is plasticized, and is squeezed out, and through drying, cooling, pelletizing after extrusion, forms the masterbatch that partial size is 0.5-1mm；
The time of the kneading is 4-6min, and the temperature of the plasticizing is 95-105 DEG C, and the time of the plasticizing is 25-35s, described to squeeze
Temperature out is 110-130 DEG C；
(2) masterbatch for obtaining polyvinyl resin and step (1) mixes, and is uniformly mixed up to the anti-corrosive fresh-keeping material.
The anti-corrosive fresh-keeping material obtained is put into molding machine, freshness protection package is made.
Test example
Test method: 3 kinds of selection apple, grape and peach fruit are tested, and every kind of fruit each 20, apparent condition base
This is consistent, is randomly divided into control group 5 and test group 15, and by each sample number into spectrum, weighing, test group is respectively charged into 5
Sealing, every bag of 3 samples are stored in room temperature shady place in freshness protection package made from the embodiment of the present invention 5, check after a period of time rotten
Rotten situation, and weigh；Control group is stored in same place room temperature shady place, places and does not pack naturally.
Experimental result: according to types of fruits difference, apple is placed 90 days, and grape is placed 30 days, and peach is placed 60 days, observation
Whether there is or not rotten situations for it, as a result such as table 1:
1 fruit freshness preserving test result of table
As seen from the above table, it was tried using the apple that the sealing of freshness protection package made of anti-corrosive fresh-keeping material of the invention is placed at 90 days
At the end of testing, wherein the point that rots occurs in 1 apple surface in 1 bag, remaining 4 bags nothings rot, extend save compared to the control group
14 times of time；For fresh-keeping grape in off-test in 30 days, surface shrink was more, without rotten, 10 times of the holding time of extension；It is fresh-keeping
Peach in off-test in 60 days, there are the points that rot in 3 samples, and extend 12 times of the holding time.After tested, prevented with of the invention
Freshness protection package made of rotten Perserving materials stores fruit, and storage period is than do not take any measure 10 times of extension or more.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of anti-corrosive fresh-keeping material, which is characterized in that the anti-corrosive fresh-keeping material is prepared by following raw material, and the raw material is by weight
Amount part includes: 60-95 parts of polyvinyl resin and from 3-40 parts of volatility anti-corrosive fresh-keeping masterbatch.
2. anti-corrosive fresh-keeping material according to claim 1, which is characterized in that the raw material is by weight percentage are as follows: poly- second
Olefine resin 90% and from volatility anti-corrosive fresh-keeping masterbatch 10%, the masterbatch includes p-hydroxybenzoate, nitrite, poly- second
Alkene wax, citrate, ascorbate and ferrous gluconate.
3. anti-corrosive fresh-keeping material according to claim 1 or 2, which is characterized in that the raw material includes: by weight percentage
4. anti-corrosive fresh-keeping material according to claim 3, which is characterized in that the raw material includes: by weight percentage
5. anti-corrosive fresh-keeping material according to claim 1 to 4, which is characterized in that the citrate is citric acid
Potassium, calcium citrate or sodium citrate.
6. anti-corrosive fresh-keeping material according to claim 1 to 4, which is characterized in that the ascorbate is Vitamin C
Sour sodium, the polyvinyl resin are food-grade polyethylene resin.
7. the method for preparing any anti-corrosive fresh-keeping material of claim 1-6, which is characterized in that the method includes following
Step:
(1) preparation of masterbatch: by p-hydroxybenzoate, nitrite, polyethylene wax, citrate, ascorbate, grape
Saccharic acid ferrous iron is mediated, and is plasticized, and is squeezed out, and through drying, cooling, pelletizing after extrusion, forms masterbatch；
(2) masterbatch for obtaining polyvinyl resin and step (1) mixes, and is uniformly mixed up to the anti-corrosive fresh-keeping material.
8. the preparation method of anti-corrosive fresh-keeping material according to claim 7, which is characterized in that the time of the kneading is 4-
6min, the temperature of the plasticizing are 95-105 DEG C, and the time of the plasticizing is 25-35s, and the temperature of the extrusion is 110-130
℃。
9. the preparation method of anti-corrosive fresh-keeping material according to claim 7, which is characterized in that the partial size of the masterbatch is
0.5-1mm。
10. -6 any anti-corrosive fresh-keeping materials are preparing the application in preservative film or freshness protection package according to claim 1.
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Application publication date: 20190716 |