CN109497126A - Extend the method for aquatic product cold storage freshness preservation - Google Patents
Extend the method for aquatic product cold storage freshness preservation Download PDFInfo
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- CN109497126A CN109497126A CN201811475550.3A CN201811475550A CN109497126A CN 109497126 A CN109497126 A CN 109497126A CN 201811475550 A CN201811475550 A CN 201811475550A CN 109497126 A CN109497126 A CN 109497126A
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- added
- gas
- fixation
- antistaling agent
- packaging bag
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000004321 preservation Methods 0.000 title claims abstract description 23
- 238000003860 storage Methods 0.000 title claims abstract description 22
- 238000004806 packaging method and process Methods 0.000 claims abstract description 60
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 53
- 238000012856 packing Methods 0.000 claims abstract description 36
- 230000001954 sterilising effect Effects 0.000 claims abstract description 30
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 23
- 238000002360 preparation method Methods 0.000 claims abstract description 21
- 230000002070 germicidal effect Effects 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 7
- 239000000047 product Substances 0.000 claims description 71
- 239000007789 gas Substances 0.000 claims description 26
- 229920001661 Chitosan Polymers 0.000 claims description 24
- 235000013824 polyphenols Nutrition 0.000 claims description 18
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 16
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 230000000844 anti-bacterial effect Effects 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 15
- 150000008442 polyphenolic compounds Chemical class 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 14
- 239000013067 intermediate product Substances 0.000 claims description 13
- 239000004593 Epoxy Substances 0.000 claims description 11
- 238000012858 packaging process Methods 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 8
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 8
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000004898 kneading Methods 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 229920005749 polyurethane resin Polymers 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims 2
- 235000019270 ammonium chloride Nutrition 0.000 claims 1
- 238000011049 filling Methods 0.000 claims 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims 1
- 150000004676 glycans Chemical class 0.000 claims 1
- 241000894006 Bacteria Species 0.000 abstract description 33
- 230000001681 protective effect Effects 0.000 abstract description 9
- 238000000889 atomisation Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 239000003755 preservative agent Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 12
- -1 polyethylene Polymers 0.000 description 10
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 9
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 8
- 230000001580 bacterial effect Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 8
- 235000013372 meat Nutrition 0.000 description 8
- 230000002335 preservative effect Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 5
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 208000035143 Bacterial infection Diseases 0.000 description 3
- 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 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 description 3
- 208000022362 bacterial infectious disease Diseases 0.000 description 3
- 238000004320 controlled atmosphere Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000005956 quaternization reaction Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 230000000845 anti-microbial effect Effects 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 230000000536 complexating effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 description 2
- 238000007142 ring opening reaction Methods 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- MPNXSZJPSVBLHP-UHFFFAOYSA-N 2-chloro-n-phenylpyridine-3-carboxamide Chemical compound ClC1=NC=CC=C1C(=O)NC1=CC=CC=C1 MPNXSZJPSVBLHP-UHFFFAOYSA-N 0.000 description 1
- 230000006820 DNA synthesis Effects 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- 102000010445 Lactoferrin Human genes 0.000 description 1
- 108010063045 Lactoferrin Proteins 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- AJXBTRZGLDTSST-UHFFFAOYSA-N amino 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)ON AJXBTRZGLDTSST-UHFFFAOYSA-N 0.000 description 1
- 230000008952 bacterial invasion Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- CSSYQJWUGATIHM-IKGCZBKSSA-N l-phenylalanyl-l-lysyl-l-cysteinyl-l-arginyl-l-arginyl-l-tryptophyl-l-glutaminyl-l-tryptophyl-l-arginyl-l-methionyl-l-lysyl-l-lysyl-l-leucylglycyl-l-alanyl-l-prolyl-l-seryl-l-isoleucyl-l-threonyl-l-cysteinyl-l-valyl-l-arginyl-l-arginyl-l-alanyl-l-phenylal Chemical compound C([C@H](N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CS)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(=O)NCC(=O)N[C@@H](C)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CS)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](C)C(=O)N[C@@H](CC=1C=CC=CC=1)C(O)=O)C1=CC=CC=C1 CSSYQJWUGATIHM-IKGCZBKSSA-N 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 229940078795 lactoferrin Drugs 0.000 description 1
- 235000021242 lactoferrin Nutrition 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003471 mutagenic agent Substances 0.000 description 1
- 231100000707 mutagenic chemical Toxicity 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 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
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
- A23B4/16—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/40—Colouring or decolouring of foods
- A23L5/41—Retaining or modifying natural colour by use of additives, e.g. optical brighteners
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- General Chemical & Material Sciences (AREA)
- Nutrition Science (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Packages (AREA)
Abstract
The invention discloses a kind of methods for extending aquatic product cold storage freshness preservation, and detailed process is as follows: the fixation antistaling agent of preparation being configured to solution, and solution is added in atomizer, is directly packed by gas-control packing device after aquatic products are cleaned；Ultraviolet germicidal is provided at controlled atmospheric packing machine inlet；The atomizer of atomizer is fixed at the gas tube of gas-control packing device, directly passes through fixation antistaling agent on the aquatic products that atomizing is sprayed in packaging bag while inflation；The present invention is by being arranged ultraviolet germicidal in gas-control packing device, and atomizer is fixed at the gas tube of gas-control packing device, realize the process of integration sterilization, controlled atmospheric packing and spray finishing color fixation antistaling agent, not only improve efficiency, and aquatic products do not have bacterium when protective packing, and then effectively reduce bacteria breed, and atomization process and gas replenishment process carry out simultaneously, fixation antistaling agent can be contained in protective packing bag, and then can effectively realize the thorough sterilization inside packaging bag.
Description
Technical field
The invention belongs to aquatic product cold storage freshness preservation fields, are related to a kind of method for extending aquatic product cold storage freshness preservation.
Background technique
Aquatic products are liked with its delicious depth by masses, but are not easy since aquatic products save in storing process, and
Corruption apt to deteriorate after its death, not only influences its delicate flavour, while color also changes, and existing Techniques of preserving passes through sterilization
Afterwards in surface coating preservative and color preserving agent, realize that its anti-corrosion protects the effect of color, but technical process is cumbersome, and by sterilization
After when being coated aquatic products meat aoxidized, and it is internal breed a certain amount of bacterium, be easy to make in long-term placement process
Increase at bacterial number and cause to go bad, while being wrapped to save for a long time using gas-control packing device in existing technology
Dress, but cause gas to omit since the hermetic seal of packaging bag is bad, while in a humid environment, packaging bag surface breeds thin
Bacterium, packaging bag air-tightness reduces under bacterial action, causes packaging bag gas leakage, and then reduces its holding time, and pack
Internal residual has bacterium to bag during the packaging process, cannot fully achieve the elimination to bacterium in packaging bag, be easy to cause bacterium
It breeds, the corruption of aquatic products is caused when placing for a long time.
Summary of the invention
The purpose of the present invention is to provide a kind of methods for extending aquatic product cold storage freshness preservation, by feeding in gas-control packing device
Ultraviolet germicidal is set at mouthful, and atomizer is fixed at the gas tube of gas-control packing device, realizes integration sterilization, gas
It stealthily substitutes the process of dress and spray finishing color fixation antistaling agent, aquatic products when not only improving efficiency, and passing through integrated process protective packing
There is no bacterium, and then effectively reduce bacteria breed, atomization process and gas replenishment process carry out simultaneously, can contain in protective packing bag
Fixation antistaling agent, and then can effectively realize the thorough sterilization inside packaging bag, further extend the fresh-keeping of aquatic products, solves
Existing Techniques of preserving protects the effect of color by surface coating preservative and color preserving agent, realizing its anti-corrosion after sterilization, but work
Skill process is cumbersome, and aquatic products meat has aoxidized when being coated after sterilization, and it is internal breed a certain amount of bacterium,
It is easy to cause bacterial number to increase in long-term placement process and causes to go bad, and packaging bag internal residual during the packaging process
There is bacterium, the elimination to bacterium in packaging bag cannot be fully achieved, be easy to cause the growth of bacterium, cause water when placing for a long time
The problem of the corruption of product.
The present invention can be realized simultaneously Bao Se and fresh-keeping double effects by preparation fixation antistaling agent, and Bao Se and
Fresh-keeping effect ratio is individually by color preserving agent and preservative good mixing effect, and without the concern for content color preserving agent during film
The influence matched with antiseptic content, while solving to be unevenly coated when being coated with color preserving agent and preservative in the prior art and make
At anti-corrosion and the non-uniform problem of colour retention.
By the way that γ-(the third oxygen of 2,3- epoxy) propyl trimethoxy silicon is added in packaging bag preparation process prepared by the present invention
Alkane improves the action site of polymer so that introducing amino and hydroxyl in polymer, so improve the silver that is complexed in polymer from
Sub- content can be realized the bactericidal property of packaging bag itself, so that bacterium will not breed on packaging bag surface, and then not will cause
Packaging bag compactness under bacterial action reduces, so that its gas leakage, causes protective gas content to reduce, aquatic products corruption, and simultaneously
The case where combining the compactness that can be improved packaging bag by polyethylene and modified polyurethane, further preventing gas leakage.
The purpose of the present invention can be achieved through the following technical solutions:
A method of extending aquatic product cold storage freshness preservation, detailed process is as follows:
The fixation antistaling agent of preparation is added to the water by the first step, is configured to the solution that concentration is 250mg/L, and will configuration
Solution afterwards is added in atomizer, is directly packed by gas-control packing device after then cleaning aquatic products；Wherein controlled atmosphere packet
Gas used in dress includes 65% oxygen, 15% nitrogen and 20% carbon dioxide gas；
Second step is provided with ultraviolet germicidal at controlled atmospheric packing machine inlet, when aquatic products enter in gas-control packing device
Ultraviolet-sterilization is first passed around, aquatic products treatment effeciency can not only be improved by directly carrying out sterilization during the packaging process, while killed
After bacterium directly carry out packaging can be avoided sterilization after in air place after again bacterial infection；
The atomizer of third step, atomizer is fixed at the gas tube of gas-control packing device, by fixation while inflation
Antistaling agent directly passes through atomizing and uniformly sprays on the aquatic products being distributed in packaging bag, then by gas-control packing device into
Directly fixation antistaling agent is sealed in packaging bag when row sealed package；By direct just by fixation antistaling agent when packing inflation
Atomized spray can not only ensure that fixation antistaling agent is evenly coated at aquatic products envelope in the surface and packaging bag of aquatic products,
Aquatic products are carried out to protect color antibacterial, while fixation antistaling agent is directly full of in packaging bag during cladding, will not only be made
It is protected at the fixation for directly causing antistaling agent to waste in aquatic products surface coating antistaling agent in prior art, and being full of in packaging bag
Fresh dose can effectively sterilize freshness protection package inside, and the gas being full of in freshness protection package realizes the inhibition to aerobic bacterium, no
Anaerobic bacteria can be acted on, the anaerobic bacteria that can be killed inside freshness protection package in freshness protection package is full of by fixation antistaling agent, realization is filled
Divide bactericidal effect；Fixation antistaling agent 25-30mL is wherein used in every kilogram of aquatic products；
Wherein the specific preparation process of fixation antistaling agent is as follows:
Step 1: chitosan being dissolved in the acetic acid solution that concentration is 5%, 2,3- glycidyl three is then added thereto
Ammonio methacrylate reacts 5h under room temperature, then carry out in it is dry with ethanol washing after evaporative crystallization, obtain n-trimethyl chitosan chloride；
2,3- epoxypropyltrimethylchloride chloride 0.41-0.42g is added in every gram of chitosan solution；
Step 2: Dai Si-Martin's oxidant being added in methylene chloride, the quaternary ammonium prepared in step 1 is then added thereto
Change chitosan, stirring at normal temperature reacts 5-6h, then washs product with saturated sodium-chloride, and it is then dry by sodium thiosulfate,
Then extracted by filtration obtains intermediate product A；Reaction structure formula is as shown in Figure 1, due to containing primary alconol base, in Dai Si-in chitosan
Aldehyde radical is generated under the oxidizing effect of Martin；Dai Si-Martin's oxidant 0.28g is wherein added in every gram of n-trimethyl chitosan chloride；
Step 3: the intermediate product A prepared in step 2 is added to the water, sodium hydroxide is added after stirring and dissolving thereto,
It then heats to 70 DEG C and apple polyphenol is added thereto, constant temperature is stirred to react 10h, is washed after being then evaporated crystallization by ethyl alcohol
It washs, is being dried, obtain fixation antistaling agent, wherein apple polyphenol 1.2-1.3g is added in every gram of intermediate product A, hydrogen-oxygen is added
Change sodium 43g；Reaction structure formula is as shown in Fig. 2, since apple polyphenol is able to suppress the fat oxidation in aquatic products, and then inhibition flesh
Lactoferrin is oxidized to high myoglobins, so that the meat of aquatic products keeps original color, since existing aquatic products are fresh-keeping
When first pass around sterilization processing, then carry out protect color processing, in sterilization processing, meat contacts with oxygen and causes oxidation stain,
And meat color has occurred and that certain variation when carrying out protecting color processing again, and first carry out guarantor's color processing and carry out sterilization processing again
When, bactericidal effect is easy in the fixation antistaling agent for changing the property of color preserving agent, and then influencing to protect the effect of color, and preparing due to apple
Fruit polyphenol have certain guarantor's color ability, and introduced after apple polyphenol is reacted with intermediate product A, in product quaternary ammonium root from
Son, so that fixation antistaling agent bactericidal property with higher, so that only needing a kind of fixation antistaling agent when preservation of fishery
Can be realized while protecting the fresh-keeping effect of color, and Bao Se and preservation are independent of each other, without in addition addition color preserving agent or
Fungicide；
Wherein packaging bag used in packaging process is sterilizing bag, and the specific preparation process of the packaging bag is as follows: will
Polyamide is dissolved in acetone, is warming up to 60 DEG C, and γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicon is then added thereto
Alkane, reaction 3h are cooled to 40 DEG C backward, and the silver nitrate solution that concentration is 500mg/L is then added into container, stirs at room temperature
Evaporation removes solvent acetone therein after 12h, obtains antibacterial polymer, then adds antibacterial polymer and polyvinyl resin simultaneously
Extrusion stretching prepares sterilizing bag after entering to be kneaded 10min in the kneading machine that temperature is 250 DEG C；Wherein every kilogram of polyurethane resin
Silver nitrate solution 350-400mL is added, simultaneously in middle addition γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane 160-170g
Polyvinyl resin 1.1-1.2g is added；It is mixed with packaging bag by polyurethane resin and polyvinyl resin, packaging can be increased
The compactness of band, while containing primary amine groups on polyurethane resin, it can be with γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane
Ring-opening reaction occurs, so that siloxanes key is introduced into polymer, so that polymer has certain hydrophobic performance, Neng Gouyou
Effect prevents the entrance of vapor, while the amido in the hydroxyl and polyamide generated after ring-opening reaction, can be with nitre
Complex reaction occurs for the silver ion in sour silver solution, so that silver ion is introduced into polymer, and the bacterial invasion outside packaging bag
When packaging bag, since the combination of silver ion and-SH can be greater than the combination energy of silver ion and hydroxyl and amino, so that silver ion
It is combined with-the SH in bacterial cell, so that metabolism and the DNA biosynthesis block of bacterium, while preventing bacterium from making by sterilization
It causes packaging bag gap to become larger for packaging bag and in turn results in gas leakage, and bacterium is immersed.
Beneficial effects of the present invention:
Atomizer is fixed on controlled atmosphere by the way that ultraviolet germicidal is arranged at controlled atmospheric packing machine inlet by the present invention
At the gas tube of packing machine, realizes the process of integration sterilization, controlled atmospheric packing and spray finishing color fixation antistaling agent, not only improves efficiency,
And there is no bacterium by aquatic products when integrated process protective packing, and then effectively reduce bacteria breed, atomization process and fill
Gas process carries out simultaneously, can contain fixation antistaling agent in protective packing bag, and then can effectively realize inside packaging bag
Thoroughly sterilization, further extend aquatic products it is fresh-keeping, solve existing Techniques of preserving by sterilization after in surface coating preservative
And color preserving agent, realize that its anti-corrosion protects the effect of color, but technical process is cumbersome, and aquatic products meat when being coated after sterilization
Matter has aoxidized, and internal a certain amount of bacterium of growth, be easy to cause bacterial number to increase in long-term placement process and leads
Mutagens matter, and internal residual has bacterium during the packaging process for packaging bag, cannot fully achieve the elimination to bacterium in packaging bag,
It is be easy to cause the growth of bacterium, the problem of the corruption of aquatic products is caused when placing for a long time.
The present invention can be realized simultaneously Bao Se and fresh-keeping double effects by preparation fixation antistaling agent, and Bao Se and
Fresh-keeping effect ratio is individually by color preserving agent and preservative good mixing effect, and without the concern for content color preserving agent during film
The influence matched with antiseptic content, while solving to be unevenly coated when being coated with color preserving agent and preservative in the prior art and make
At anti-corrosion and the non-uniform problem of colour retention.
By the way that γ-(the third oxygen of 2,3- epoxy) propyl trimethoxy silicon is added in packaging bag preparation process prepared by the present invention
Alkane improves the action site of polymer so that introducing amino and hydroxyl in polymer, so improve the silver that is complexed in polymer from
Sub- content can be realized the bactericidal property of packaging bag itself, so that bacterium will not breed on packaging bag surface, and then not will cause
Packaging bag compactness under bacterial action reduces, so that its gas leakage, causes protective gas content to reduce, aquatic products corruption, and simultaneously
The case where combining the compactness that can be improved packaging bag by polyethylene and modified polyurethane, further preventing gas leakage.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is n-trimethyl chitosan chloride reaction structure formula of the present invention；
Fig. 2 is fixation antistaling agent preparation process reaction structure formula of the present invention.
Specific embodiment
It is described in detail referring to FIG. 1-2, in conjunction with following examples:
Embodiment 1:
The specific preparation process of fixation antistaling agent is as follows:
Step 1: 1kg chitosan being dissolved in the acetic acid solution that concentration is 5%, 0.41kg2,3- ring are then added thereto
Oxygen propyl group trimethyl ammonium chloride reacts 5h under room temperature, then carry out in it is dry with ethanol washing after evaporative crystallization, obtain quaternized
Chitosan；
Step 2: 0.28kg Dai Si-Martin's oxidant being added in 10L methylene chloride, is then added in step 1 thereto
The n-trimethyl chitosan chloride of preparation, stirring at normal temperature react 5-6h, then wash product with saturated sodium-chloride, then pass through thio sulphur
Sour sodium is dry, and then extracted by filtration, obtains intermediate product A；
Step 3: the intermediate product A prepared in 1kg step 2 being added to the water, 43g hydrogen-oxygen is added after stirring and dissolving thereto
Change sodium, then heats to 70 DEG C and 1.2kg apple polyphenol is added thereto, constant temperature is stirred to react 10h, after being then evaporated crystallization
It by ethanol washing, is being dried, is obtaining fixation antistaling agent；
Examination of infrared spectrum is carried out to the n-trimethyl chitosan chloride, intermediate product A and fixation antistaling agent prepared in embodiment 1,
The results are shown in Table 1:
The infrared analysis result of 1 n-trimethyl chitosan chloride of table, intermediate product A and fixation antistaling agent:
As shown in Table 1, quaternary ammonium radical ion is introduced in n-trimethyl chitosan chloride, intermediate product A and fixation antistaling agent, simultaneously
Occur the characteristic absorption peak of aldehyde radical in intermediate product A, illustrates that the primary alconol of the position C6 on chitosan is oxidized to aldehyde radical, it is solid simultaneously
There is no aldehyde radical peak in color antistaling agent, then illustrates that Friedel-Crafts reaction occurs for aldehyde radical and phenolic hydroxyl group；N-trimethyl chitosan chloride, intermediate product simultaneously
In A without in phenolic hydroxyl group because of the γ O-H broad band absorption peak that association generates, and then in 683cm in fixation antistaling agent-1Place occurs
γ O-H broad band absorption peak in phenolic hydroxyl group, illustrates that apple polyphenol is introduced into quaternization chitosan.
Embodiment 2:
The preparation method of fixation antistaling agent is same as Example 1, by the content of apple polyphenol in embodiment 1 improve to
1.8kg。
Embodiment 3:
The preparation method of fixation antistaling agent is same as Example 1, and the content of apple polyphenol in embodiment 1 is reduced to
0.73kg。
Embodiment 4:
Packaging bag used in packaging process is sterilizing bag, and the specific preparation process of the packaging bag is as follows: 1kg is gathered
Amide resin is dissolved in acetone, is warming up to 60 DEG C, and 160g γ-(2,3- the third oxygen of epoxy) propyl trimethoxy is then added thereto
Silane, reaction 3h are cooled to 40 DEG C backward, and the silver nitrate solution that 350mL concentration is 500mg/L, room temperature are then added into container
Evaporation removes solvent acetone therein after lower stirring 12h, antibacterial polymer is obtained, then by antibacterial polymer and the poly- second of 1.1kg
Temperature is added simultaneously to be kneaded extrusion stretching after 10min in 250 DEG C of kneading machine and preparing sterilizing bag in olefine resin.
Embodiment 5:
Packaging bag used in packaging process is sterilizing bag, and the specific preparation process of the packaging bag is as follows: 1kg is gathered
Amide resin is dissolved in acetone, the silver nitrate solution that 350mL concentration is 500mg/L is added at 40 DEG C, after shaking 12h at room temperature
Evaporation removes solvent acetone therein, obtains antibacterial polymer, then adds antibacterial polymer and 1.1kg polyvinyl resin simultaneously
Extrusion stretching prepares sterilizing bag after entering to be kneaded 10min in the kneading machine that temperature is 250 DEG C.
Embodiment 6:
The preparation method of packaging bag is same as Example 4, and the polyvinyl resin content in embodiment 4 is reduced to
0.65kg。
Embodiment 7:
A method of extending aquatic product cold storage freshness preservation, detailed process is as follows:
Fixation antistaling agent prepared by embodiment 1 is added to the water by the first step, is configured to the solution of 250mg/L, and will configuration
Solution afterwards is added in atomizer, is directly packed by gas-control packing device after then cleaning aquatic products；Wherein controlled atmosphere packet
Gas used in dress includes 65% oxygen, 15% nitrogen and 20% carbon dioxide gas；
Second step is provided with ultraviolet germicidal at controlled atmospheric packing machine inlet, when aquatic products enter in gas-control packing device
Ultraviolet-sterilization is first passed around, aquatic products treatment effeciency can not only be improved by directly carrying out sterilization during the packaging process, while killed
After bacterium directly carry out packaging can be avoided sterilization after in air place after again bacterial infection；
The atomizer of third step, atomizer is fixed at the gas tube of gas-control packing device, by fixation while inflation
Antistaling agent directly passes through atomizing and uniformly sprays on the aquatic products being distributed in packaging bag, then by gas-control packing device into
Directly fixation antistaling agent is sealed in packaging bag prepared by embodiment 4 when row sealed package, wherein making in every kilogram of aquatic products
With fixation antistaling agent 25-30mL.
Embodiment 8:
A kind of method extending aquatic product cold storage freshness preservation is same as Example 7, by fixation antistaling agent used in embodiment 7
It is substituted for the fixation antistaling agent of the preparation of embodiment 2.
Embodiment 9:
A kind of method extending aquatic product cold storage freshness preservation is same as Example 7, by fixation antistaling agent used in embodiment 7
It is substituted for the fixation antistaling agent of the preparation of embodiment 3.
Embodiment 10
A kind of method extending aquatic product cold storage freshness preservation is same as Example 7, and packaging bag used in embodiment 7 is replaced
The packaging bag prepared at embodiment 5.
Embodiment 11:
A kind of method extending aquatic product cold storage freshness preservation is same as Example 7, and packaging bag used in embodiment 7 is replaced
The packaging bag prepared at embodiment 6.
Embodiment 12:
A method of extending aquatic product cold storage freshness preservation, detailed process is as follows:
The first step is sterilized after cleaning up aquatic products by ultraviolet lamp；
Aquatic products surface after sterilization is coated with the fixation that concentration prepared by one layer of embodiment 1 is 250mg/L and protected by second step
It fresh dose, ensures and uses fixation antistaling agent 25-30mL in every kilogram of aquatic products；
Third step, by treated, aquatic products are packed by gas-control packing device.
Embodiment 13:
A kind of method extending aquatic product cold storage freshness preservation is same as Example 7, by fixation antistaling agent used in embodiment 7
It is substituted for the mixture of quaternization chitosan and apple polyphenol, the solution concentration of configuration is also 250mg/L, wherein quaternization
The mass ratio of chitosan and apple polyphenol is 1:1.2.
Embodiment 14:
After aquatic products after embodiment 7-13 storage are placed 30 days, 40 days, 50 days respectively at normal temperature, aquatic products are observed
Color, and observe packaging bag gas leakage situation, while detecting the content of Escherichia coli in aquatic products, lactic acid bacteria and pseudomonad,
The results are shown in Table 2:
Table 2 places the aquatic products situation of change stored when different time
As shown in Table 2, the content of pseudomonad alreadys exceed 100 when saving 30 days in embodiment 12, is directly over sterilization
When carrying out smearing fixation antistaling agent afterwards again, aquatic products have been aoxidized, and meat color has been varied, while being packed after smearing
There is no fixation antistaling agent in journey in packaging bag, the bacterium in packaging bag can breed, and can act on when bacterial content reaches certain value
Cause it rotten in aquatic products；Directly sterilize using n-trimethyl chitosan chloride in embodiment 13 simultaneously while passing through apple polyphenol
Guarantor's color is carried out, and two kinds of substances are easy to appear in sprinkling and are unevenly distributed, in turn resulting in part breeds bacterium, works as bacteria breed
Make entire aquatic products bacterial infection when to a certain degree, in turn results in the color change of aquatic products；Apple is more in embodiment 8 simultaneously
When phenol content increases, the content of n-trimethyl chitosan chloride is reduced, so that the anti-microbial property of fixation antistaling agent reduces, is put for a long time
It sets and bacteria breed occurs and change colour, and in embodiment 9 when the content reduction of apple polyphenol, the content of n-trimethyl chitosan chloride increases
More, although anti-microbial property improves, protecting color ability is reduced, and causes its color change；γ-is not added in embodiment 10 simultaneously
(2,3- the third oxygen of epoxy) propyl trimethoxy silicane, directly addition silver nitrate, so that silver nitrate is directly and on n-trimethyl chitosan chloride
Amino complexing, and add and generate hydroxyl after γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane, silver ion not only with amino
Complexing simultaneously with hydroxyl be complexed, and then improve silver ion action site, improve the content of silver ion so that packaging bag have compared with
High antibacterial ability, so that bacterium will not act on packaging bag, the air-tightness of packaging bag be will not change；Embodiment 11 simultaneously
When middle polyvinyl resin content is reduced, since the air-tightness of packaging bag reduces, so that protective gas therein is omitted, meat is caused
Discoloration corruption.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (7)
1. extending the method for aquatic product cold storage freshness preservation, which is characterized in that detailed process is as follows:
The fixation antistaling agent of preparation is added to the water by the first step, is configured to certain density solution, and will add with the solution postponed
Enter in atomizer, is directly packed by gas-control packing device after then cleaning aquatic products；
Second step is provided with ultraviolet germicidal at controlled atmospheric packing machine inlet, first when aquatic products enter in gas-control packing device
By ultraviolet-sterilization, directly sterilized during the packaging process；
The atomizer of third step, atomizer is fixed at the gas tube of gas-control packing device, while inflation that fixation is fresh-keeping
Agent directly passes through atomizing and uniformly sprays on the aquatic products being distributed in packaging bag, then carries out by gas-control packing device close
Fixation antistaling agent is directly sealed in packaging bag by package when filling；
Wherein the specific preparation process of fixation antistaling agent is as follows:
Step 1: chitosan being dissolved in the acetic acid solution that concentration is 5%, 2,3- epoxy is then added thereto
Ammonium chloride reacts 5h under room temperature, then carry out in it is dry with ethanol washing after evaporative crystallization, obtain n-trimethyl chitosan chloride；
Step 2: Dai Si-Martin's oxidant being added in methylene chloride, the quaternized shell prepared in step 1 is then added thereto
Glycan, stirring at normal temperature react 5-6h, then wash product with saturated sodium-chloride, then dry by sodium thiosulfate, then
Extracted by filtration obtains intermediate product A；
Step 3: the intermediate product A prepared in step 2 being added to the water, sodium hydroxide is added after stirring and dissolving thereto, then
It being warming up to 70 DEG C and apple polyphenol is added thereto, constant temperature is stirred to react 10h, pass through ethanol washing after being then evaporated crystallization,
It is being dried, is obtaining fixation antistaling agent.
2. the method according to claim 1 for extending aquatic product cold storage freshness preservation, which is characterized in that used in controlled atmospheric packing
Gas includes 65% oxygen, 15% nitrogen and 20% carbon dioxide gas.
3. the method according to claim 1 for extending aquatic product cold storage freshness preservation, which is characterized in that make in every kilogram of aquatic products
With fixation antistaling agent 25-30mL.
4. the method according to claim 1 for extending aquatic product cold storage freshness preservation, which is characterized in that every gram of shell is poly- in step 1
2,3- epoxypropyltrimethylchloride chloride 0.41-0.42g is added in sugar juice.
5. the method according to claim 1 for extending aquatic product cold storage freshness preservation, which is characterized in that every gram of centre in step 3
Apple polyphenol 1.2-1.3g is added in product A.
6. the method according to claim 1 for extending aquatic product cold storage freshness preservation, which is characterized in that used in packaging process
Packaging bag is sterilizing bag, and the specific preparation process of the packaging bag is as follows: polyamide being dissolved in acetone, is warming up to 60
DEG C, γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane is then added thereto, reaction 3h is cooled to 40 DEG C backward, then
The silver nitrate solution that concentration is 500mg/L is added into container, evaporation removes solvent acetone therein after stirring 12h at room temperature,
Antibacterial polymer is obtained, then antibacterial polymer and polyvinyl resin are added simultaneously in the kneading machine that temperature is 250 DEG C and are kneaded
Stretching is squeezed out after 10min prepares sterilizing bag.
7. the method according to claim 6 for extending aquatic product cold storage freshness preservation, which is characterized in that every kilogram of polyurethane resin
Silver nitrate solution 350-400mL is added, simultaneously in middle addition γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane 160-170g
Polyvinyl resin 1.1-1.2g is added.
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| CN103734251A (en) * | 2013-12-09 | 2014-04-23 | 苏州市相城区新时代特种水产养殖场 | Aquatic product fresh-keeping method |
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