CN107258863A - A kind of biophysics dual fresh-keeping hoarding method of sandwich - Google Patents
A kind of biophysics dual fresh-keeping hoarding method of sandwich Download PDFInfo
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- CN107258863A CN107258863A CN201611037637.3A CN201611037637A CN107258863A CN 107258863 A CN107258863 A CN 107258863A CN 201611037637 A CN201611037637 A CN 201611037637A CN 107258863 A CN107258863 A CN 107258863A
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- Prior art keywords
- sandwich
- fresh
- keeping
- packing container
- biophysics
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Classifications
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- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
- A21D15/00—Preserving finished, partly finished or par-baked bakery products; Improving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2069—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2069—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
- B65D81/2084—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in a flexible container
- B65D81/2092—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in a flexible container with one or several rigid inserts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Packages (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Abstract
The present invention relates to a kind of biophysics dual fresh-keeping hoarding method of sandwich, this method comprises the following steps：The fresh-keeping film-coating of the bioactive substances such as packing container inner-wall spraying chitosan, tea polysaccharide, peanut red coat extract composition.By fresh sandwich, the precooling after sterilization, is put into packing container, packing container sealing, and carbon dioxide, nitrogen and Co mixed gas are filled with packing container, humidity in control packing container, inflation inlet closing；Oxygen proportion is reduced to less than 1%, carbon dioxide 25 35%, nitrogen 65 75%, carbon monoxide 0.5 5%, the environment of hypoxia-hypercapania can effectively suppress harmful microbe growth and breeding, extend the sandwich shelf-life, and suitable humidity environment can effectively keep vegetables and meat products cell turgor in sandwich suitable, micro carbon monoxide can keep the color and luster and mouthfeel of vegetables and meat products, ensure the fresh and high-quality of product.
Description
Technical field
The present invention relates to a kind of biophysics dual fresh-keeping hoarding method of sandwich, belong to food storage and fresh-keeping neck
Domain.
Background technology
With expanding economy and growth in the living standard, demand of the people to high-quality, long shelf life instant food
Also more and more, so as to promote the development of many multicomponent complex foods, this based food is typically by the filling of soft moistening
Expect class and relatively dry bread, cake or brittle cereals composition, sandwich is one of which.Sandwich is
Worked it out together with a variety of nutritious food materials collocation, in good taste, rich in nutrition content can supplement body rapidly
Energy, while fiber and protein, starch collocation are suitable in sandwich, can promote enterogastric peristalsis, help digest, there is stomach strengthening and digestion promoting
Effect.
Because sandwich raw material and dispensing are various, shelf lives are short, it is easy to moldy metamorphism, unsuitable long-term storage, at present
Conventional storage practice is room temperature or cryopreservation, and the holding time is generally 1-3 days.Patent of invention CN103891855A is related to one
Controlled atmospheric packing sandwich low-temp antistaling method is planted, can be preserved 10 days at 2-4 DEG C using the method sandwich described in it.This method
Only it is filled with gas and packs storage, aeration quantity is big, is existed to reserve temperature requirement strictly, shelf lives are short, sandwich quality, mouth
Feel the defect of difference.The present invention carries out dual fresh-keeping hoarding to sandwich by biological and physical method, swollen using controlled atmosphere, cell
Gas ratio and humidity reach sandwich storage optimum ratio in pressure, the triple controls of fresh-keeping film-coating, accurate control packing container,
It can overcome in storage that vegetables or meat products moisture spread into bread in sandwich, influence sandwich mouthfeel and shelf-life
Defect, it is possible to achieve sandwich is preserved 7-12 days below 6.5 DEG C, do not occur it is putrid and deteriorated, keep sandwich fresh mouth
Sense and abundant nutrition.
The present invention with chitosan, SNSP, tea polysaccharide, citral, the natural biological antibacterial such as proanthocyanidin, anti-corrosion,
Anti-oxidation active substance is sprayed at box type container inwall, can effectively prevent extraneous oxygen from entering the space that sandwich is preserved, so that
Suppress or slow down the oxidative degradation of sandwich, play a part of anti-corrosion, extension storage period.Chitosan and SNSP are natural
Bacteriostatic agent, can suppress the microorganisms such as bacterium, mould, yeast growth, play antibacterial action.Citral can evaporate into bag rapidly
In packaging container in gas, play a part of antibacterial and suppress growth of microorganism；Proanthocyanidin is natural, energy and Sanming City
Control the oxygen reaction remained in storage space so that oxygen content is adapted in scope in water fruits and vegetables respiration in packaging, enters
And oxidative rancidity of the oxygen to sandwich product is reduced, play antioxidation.The drying mode of inwall preservative film can be using remote
Infrared radiation drying, hot air convection add radiative oven dry etc., and fast drying, effect are good, and active component function keeps good.Nitrogen,
The mixed gas such as carbon monoxide, carbon dioxide are filled with packaging, by original gas displacement in packing container so that space in packaging
Oxygen content drop within 0.1-0.5%, such oxygen content can effectively delay the metabolism of vegetables in sandwich
Amount, keeps the normal sense organ presentation of sandwich, and humidity of the present invention reaches sandwich storage optimum ratio, can overcome and preserve
Vegetables or meat products moisture spread into bread in sandwich in journey, keep the soft of outer layer bread mouthfeel.In addition, carbon monoxide
Presence can guarantee that the fresh gloss of cooked meat product.The technology of the present invention realizes that sandwich is preserved 7-12 days below 6.5 DEG C, does not occur
It is putrid and deteriorated and sandwich can be made to keep optimal quality, color and local flavor.
The content of the invention
, can be with using the method it is an object of the invention to provide a kind of biophysics dual fresh-keeping hoarding method of sandwich
Realize that sandwich is preserved 7-12 days below 6.5 DEG C, fresh taste that is putrid and deteriorated, keeping sandwich and abundant battalion do not occur
Support.To overcome, the current sandwich holding time is short, the perishable food waste and economic loss caused.This method is without chemistry
Preservative, antistaling agent, it is simple to operate, rapidly and efficiently, it is possible to achieve the low temperature high-quality high nutrition of sandwich is preserved, and can be pushed to
Bring economic benefit in market.
To reach above-mentioned purpose, specifically adopt the following technical scheme that：
The bioactive substances such as chitosan, tea polysaccharide, peanut red coat extract are dissolved in water, packaging bag and box type container is sprayed at
Inwall, drying turns into natural fresh-keeping film；By fresh sandwich, the precooling after sterilization, is put into packing container, packing container sealing；
Carbon dioxide, nitrogen and Co mixed gas are filled with packing container, humidity in control packing container, inflation inlet envelope
Close.
Preferably, it is filled with gaseous mixture in packing container described in a kind of biophysics dual fresh-keeping hoarding method of sandwich
Body ratio is carbon dioxide 25-35%, nitrogen 65-75%, carbon monoxide 0.5-5%；
Preferably, humidity is 81-86% in the packing container described in a kind of biophysics dual fresh-keeping hoarding method of sandwich；
Preferably, the packing container inwall addition fresh-keeping film-coating described in a kind of biophysics dual fresh-keeping hoarding method of sandwich
Solution each component content is chitosan 1-5%, tea polysaccharide 1-10%, peanut red coat extract 1-10%, citral 0.01-0.5%；
Preferably, every 100g sandwiches described in a kind of biophysics dual fresh-keeping hoarding method of sandwich use 40-50ml
Above-mentioned mixed gas, and maintain inside and outside air pressure balance；
Preferably, the packing container described in a kind of biophysics dual fresh-keeping hoarding method of sandwich is box-packed, double-deck material,
Outer layer is brown paper, and internal layer is nanoscale polyolefin base membrane, internal layer inwall addition fresh-keeping film-coating.
Preferably, the chitosan described in a kind of biophysics dual fresh-keeping hoarding method of sandwich is the crust of shrimp or crab
The chitosan that element is obtained through deacetylation, peanut red coat extract includes SNSP and proanthocyanidin, and non-starch is more
The peanut SNSP that sugar obtains for peanut red coat through extraction with aqueous solution, flower proanthocyanidin is that peanut red coat is obtained through alcohol steep
Arrive, tea polysaccharide is the tea polysaccharide that coarse tea leaf is obtained through water extraction.
The present invention provides a kind of biophysics dual fresh-keeping hoarding method of sandwich, the advantage is that：
(1) invention is sprayed at box type container inwall by natural biological antibacterial, anti-corrosion, anti-oxidation active substance, can effectively prevent
Extraneous oxygen enters the space that sandwich is preserved, so as to suppress or slow down the oxidative degradation of sandwich, plays anti-corrosion, extension storage
The effect of phase.
(2) mixed gas such as nitrogen, carbon monoxide, carbon dioxide are filled with packaging by the present invention, will be former in packing container
There is gas displacement so that the oxygen content in space is dropped within 0.1-0.5% in packaging, and such oxygen content can effectively prolong
The metabolism amount of vegetables, keeps the normal sense organ presentation of sandwich, suppresses growth of microorganism in slow sandwich,
(3) humidity of the present invention reaches sandwich storage optimum ratio, makes veterinary antibiotics in sandwich, meat products, seafood etc.
Raw material turgescence is suitable, and gloss is fresh；It can overcome in storage that vegetables or meat products moisture spread into bread in sandwich,
Sandwich water activity balance is maintained, the soft of outer layer bread mouthfeel is kept.
(4) packing container of the present invention is box-packed, and elegant in appearance, double-deck material, outer layer is brown paper, is able to maintain that packaging
The definite shape of container, it is easy to storage and transport；Internal layer is nanoscale polyolefin base membrane, can effectively suppress oxygen transmission, protect
Hinder the high content of carbon dioxide and nitrogen, while maintaining packaging material inner and outer air pressure.
(5) present invention is using controlled atmosphere, cell turgor, the triple controls of fresh-keeping film-coating, gas ratio in accurate control packing container
Example and humidity reach sandwich storage optimum ratio, extend the shelf life, it is ensured that the fresh taste of sandwich and nutrition.This technique
Environmental protection, meets people and pursues natural, health, the life idea of low-carbon, generation environment pollutant, does not prolong sandwich system effectively
The shelf-life of product, it is to avoid discard the unnecessary economic loss brought because the sandwich shelf-life is short, and operating method it is simple,
Practicality, the need for being adapted to scale industrialized production.
Brief description of the drawings
Fig. 1 is the water activity change of sandwich different storage time when reserve temperature is 5.2 DEG C in embodiment 5.
Embodiment
With reference to specific embodiment, the invention will be further described, to help understanding present disclosure.
Material, reagent used etc., unless otherwise specified, are commercially obtained in following embodiments；Experiment side
Method is conventional method unless otherwise specified.
The Testing index of each embodiment sandwich resulting after preserving is as follows：
Peroxide value（With buttermeter）：Detection method GB/T5009.56, is provided according to DB31/2012-2013, in sandwich
Peroxide value（With buttermeter）≤0.13g/100g.
Microorganism is limited the quantity：Microorganism detection is carried out according to table 1
Sensory evaluation：The Majors of Food researcher for selecting 14 abilities to express good, using total score ten point system to utilizing one kind three
The biophysics dual fresh-keeping hoarding method of Mingzhi preserves quality, color, local flavor, outward appearance, the preference 5 of the sandwich of 10 days
Individual aspect is evaluated.Consider all organoleptic attributes including quality, color and local flavor, and each sample is entered
Row outward appearance and preference marking（0-10 points, 0 representative is not liked, and 10 representatives are liked, and numerical values recited represents fancy grade）, table 2 is
Subjective appreciation standards of grading.
Embodiment l
By chitosan 1%, tea polysaccharide 3%, peanut red coat extract 8%, the bioactive substance of citral 0.01% is dissolved in water, is sprayed at
Packaging bag and box type container inwall, normal temperature forced air drying turn into natural fresh-keeping film；By fresh sandwich, the precooling after sterilization, is put into
In packing container, packing container sealing；By carbon dioxide 26%, nitrogen 73%, the mixed gas of carbon monoxide 1% is filled with packing container
In, 81.5% in control packing container, inflation inlet closing；The above-mentioned mixed gas of 42ml is used per 100g sandwiches, and remains interior
Outer air pressure balance；Oxygen content drops to 0.5% in being packed after sealing；Packing container is box-packed, and double-deck material, outer layer is brown paper,
Internal layer is nanoscale polyolefin base membrane, internal layer inwall addition fresh-keeping film-coating.Chitosan is the chitin of shrimp in fresh-keeping film-coating solution
The chitosan obtained through deacetylation, peanut red coat extract includes SNSP and proanthocyanidin, SNSP
The peanut SNSP obtained for peanut red coat through extraction with aqueous solution, flower proanthocyanidin is that peanut red coat is obtained through alcohol steep
Arrive, tea polysaccharide is the tea polysaccharide that coarse tea leaf is obtained through water extraction.Sandwich reserve temperature is 4.5 DEG C, Sanming City of the storage practice
Controlling the shelf-life can reach 12 days.Testing index is as follows：Peroxide value（With buttermeter）For 0.01g/100g；Total plate count is
13CFU/g, ETEC is not detected, and staphylococcus aureus does not detect, and Listeria Monocytogenes are not detected,
Salmonella is not detected, and Bacillus cereus 8CFU/g, enteropathogenic E. Coli O157 is not detected；Subjective appreciation scoring 9.6, outside
See and preference marking 9.2.
Embodiment 2：
By chitosan 1.5%, tea polysaccharide 1.5%, peanut red coat extract 3.5%, citral 0.1% is dissolved in water；It is sprayed at packaging bag
And box type container inwall, solidified by ultraviolet ray radiation, which is dried, turns into natural fresh-keeping film；By fresh sandwich, the precooling after sterilization, is put into
In packing container, packing container sealing；By carbon dioxide content 28%, nitrogen 70.5%, the mixed gas of carbon monoxide 1.5% is filled
Enter in packing container, control humidity in packing container to be 82% using the above-mentioned mixed gas of 48ml per 100g sandwiches, inflation inlet envelope
Close；The fresh-keeping film-coating of packing container inwall addition composition；
The chitosan that wherein chitosan obtains for the chitin of crab through deacetylation, peanut red coat extract includes non-starch
Polysaccharide and proanthocyanidin, SNSP proanthocyanidin are the peanut SNSP that peanut red coat is obtained through extraction with aqueous solution,
Flower proanthocyanidin is that peanut red coat is obtained through alcohol steep, and tea polysaccharide is the tea polysaccharide that coarse tea leaf is obtained through water extraction.
Sandwich reserve temperature is 6.5 DEG C, and the sandwich shelf-life of the storage practice can reach 12 days.Testing index is such as
Under：Peroxide value（With buttermeter）For 0.02g/100g；Total plate count is 15CFU/g, and ETEC is not detected, golden yellow
Staphylococcus is not detected, and Listeria Monocytogenes are not detected, and salmonella does not detect, Bacillus cereus 8CFU/
G, enteropathogenic E. Coli O157 is not detected；Subjective appreciation scoring 9.2, outward appearance and preference marking 9.0.
Embodiment 3
By chitosan 4.5%, tea polysaccharide 6.5%, peanut red coat extract 2.5%, citral 0.25% is dissolved in water, is sprayed at packaging bag
And box type container inwall, far-infrared radiation drying is as natural fresh-keeping film；By precooling after the irradiated sterilization of fresh sandwich, put
Enter in packing container, packing container sealing；Carbon dioxide, nitrogen and Co mixed gas are filled with packing container, mixed
Conjunction gas ratio is carbon dioxide 33%, nitrogen 63.5%, carbon monoxide 3.5%；It is 84%, inflation inlet to control humidity in packing container
Closing.The above-mentioned mixed gas of 49ml is used per 100g sandwiches, and maintains inside and outside air pressure balance；Packing container is box-packed, bilayer
Material, outer layer is brown paper, and internal layer is nanoscale polyolefin base membrane, internal layer inwall addition fresh-keeping film-coating.
The chitosan that wherein chitosan obtains for the chitin of shrimp or crab through deacetylation, peanut red coat extract bag
Containing SNSP and proanthocyanidin, SNSP proanthocyanidin is the non-shallow lake of peanut that peanut red coat is obtained through extraction with aqueous solution
Powder polysaccharide, flower proanthocyanidin is that peanut red coat is obtained through alcohol steep, and tea polysaccharide is the tea polysaccharide that coarse tea leaf is obtained through water extraction.
Sandwich reserve temperature is 6.0 DEG C, and the sandwich shelf-life of the storage practice can reach 12 days.Testing index is such as
Under：Peroxide value（With buttermeter）For 0.018g/100g；Total plate count is 15CFU/g, and ETEC is not detected, golden yellow
Color staphylococcus is not detected, and Listeria Monocytogenes are not detected, and salmonella does not detect, Bacillus cereus
7CFU/g, enteropathogenic E. Coli O157 is not detected；Subjective appreciation scoring 9.3, outward appearance and preference marking 9.1.
Embodiment 4
By chitosan 5%, tea polysaccharide 8.5%, peanut red coat extract 3.5%, citral 0.04% is dissolved in water, is sprayed at packaging bag
And box type container inwall, hot air convection add radiative oven dry turn into natural fresh-keeping film；By fresh sandwich, the precooling after sterilization, is put into
In packing container, packing container sealing；Carbon dioxide, nitrogen and Co mixed gas are filled with packing container, mixed
Gas ratio is carbon dioxide 34%, and nitrogen 62%, carbon monoxide 4% uses the above-mentioned mixed gas of 44ml per 100g sandwiches,；Control
Humidity is 85.5% in packing container processed, inflation inlet closing；Packing container is box-packed, double-deck material, and outer layer is brown paper, internal layer
For nanoscale polyolefin base membrane, internal layer inwall addition fresh-keeping film-coating.
Wherein, the chitosan that chitosan obtains for the chitin of shrimp or crab through deacetylation, peanut red coat extract
Comprising SNSP and proanthocyanidin, SNSP proanthocyanidin is that the peanut that peanut red coat is obtained through extraction with aqueous solution is non-
Starch-polysaccharides, flower proanthocyanidin is that peanut red coat is obtained through alcohol steep, and tea polysaccharide is that the tea that coarse tea leaf is obtained through water extraction is more
Sugar.
Sandwich reserve temperature is 5.5 DEG C, and the sandwich shelf-life of the storage practice can reach 12 days.Testing index is such as
Under：Peroxide value（With buttermeter）For 0.012g/100g；Total plate count is 15CFU/g, and ETEC is not detected, golden yellow
Color staphylococcus is not detected, and Listeria Monocytogenes are not detected, and salmonella does not detect, Bacillus cereus
7CFU/g, enteropathogenic E. Coli O157 is not detected；Subjective appreciation scoring 9.8, outward appearance and preference marking 9.3.
Embodiment 5
By chitosan 2.5%, tea polysaccharide 5.5%, peanut red coat extract 7%, citral 0.03% is dissolved in water, is sprayed at packaging bag
And box type container inwall, hot air convection add radiative oven dry turn into natural fresh-keeping film；By fresh sandwich, the precooling after sterilization, is put into
In packing container, packing container sealing；Carbon dioxide, nitrogen and Co mixed gas are filled with packing container, mixed
Gas ratio is carbon dioxide 29%, nitrogen 69%, carbon monoxide 2%；The above-mentioned mixed gas of 46ml is used per 100g sandwiches, and
Maintain inside and outside air pressure balance；It is 84.5% to control humidity in packing container, inflation inlet closing；Packing container is box-packed, double-deck material
Matter, outer layer is brown paper, and internal layer is nanoscale polyolefin base membrane, internal layer inwall addition fresh-keeping film-coating.
The chitosan that wherein chitosan obtains for the chitin of shrimp or crab through deacetylation, peanut red coat extract bag
Containing SNSP and proanthocyanidin, SNSP proanthocyanidin is the non-shallow lake of peanut that peanut red coat is obtained through extraction with aqueous solution
Powder polysaccharide, flower proanthocyanidin is that peanut red coat is obtained through alcohol steep, and tea polysaccharide is the tea polysaccharide that coarse tea leaf is obtained through water extraction.
Sandwich reserve temperature is 5.2 DEG C, and the sandwich shelf-life of the storage practice can reach 12 days.Testing index is such as
Under：Peroxide value（With buttermeter）For 0.013g/100g；Total plate count is 15CFU/g, and ETEC is not detected, golden yellow
Color staphylococcus is not detected, and Listeria Monocytogenes are not detected, and salmonella does not detect, Bacillus cereus
6CFU/g, enteropathogenic E. Coli O157 is not detected；Subjective appreciation scoring 9.5, outward appearance and preference marking 9.1.
The foregoing is only a specific embodiment of the invention, it is not limited to this, any skill for being familiar with the art
Art personnel the invention discloses technical scope in, change or replacement can be readily occurred in, should all cover the present invention protection model
Within enclosing.
Claims (7)
1. the biophysics dual fresh-keeping hoarding method of a kind of sandwich, it is characterised in that comprise the following steps：
The bioactive substances such as chitosan, tea polysaccharide, peanut red coat extract are dissolved in water, packaging bag and box type container is sprayed at
Inwall, drying turns into natural fresh-keeping film；By fresh sandwich, the precooling after sterilization, is put into packing container, packing container sealing；
Carbon dioxide, nitrogen and Co mixed gas are filled with packing container, humidity in control packing container, inflation inlet envelope
Close.
2. the biophysics dual fresh-keeping hoarding method of a kind of sandwich as claimed in claim 1, it is characterised in that be filled with packaging
Ratio of gas mixture is carbon dioxide 25-35%, nitrogen 65-75%, carbon monoxide 0.5-5% in container.
3. a kind of biophysics dual fresh-keeping hoarding method of sandwich as claimed in claim 1, it is characterised in that packing container
Interior humidity is 81-86%.
4. a kind of biophysics dual fresh-keeping hoarding method of sandwich as claimed in claim 1, it is characterised in that packing container
Inwall addition fresh-keeping film-coating solution each component content is chitosan 1-5%, tea polysaccharide 1-10%, peanut red coat extract 1-10%, lemon
Lemon aldehyde 0.01-0.5%.
5. the biophysics dual fresh-keeping hoarding method of a kind of sandwich as claimed in claim 1, it is characterised in that per 100g tri-
Mingzhi uses the above-mentioned mixed gas of 40-50ml, and maintains inside and outside air pressure balance.
6. a kind of biophysics dual fresh-keeping hoarding method of sandwich as claimed in claim 1, it is characterised in that packing container
For box-packed, double-deck material, outer layer is brown paper, and internal layer is nanoscale polyolefin base membrane, internal layer inwall addition fresh-keeping film-coating.
7. the biophysics dual fresh-keeping hoarding method of a kind of sandwich according to claim 1, it is characterised in that described
The chitosan that is obtained for the chitin of shrimp or crab through deacetylation of chitosan, peanut red coat extract is more comprising non-starch
Sugar and proanthocyanidin, SNSP are the peanut SNSP that peanut red coat is obtained through extraction with aqueous solution, flower proanthocyanidin
Obtained for peanut red coat through alcohol steep, tea polysaccharide is the tea polysaccharide that coarse tea leaf is obtained through water extraction.
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| CN201611037637.3A CN107258863A (en) | 2016-11-23 | 2016-11-23 | A kind of biophysics dual fresh-keeping hoarding method of sandwich |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611037637.3A CN107258863A (en) | 2016-11-23 | 2016-11-23 | A kind of biophysics dual fresh-keeping hoarding method of sandwich |
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| CN201611037637.3A Pending CN107258863A (en) | 2016-11-23 | 2016-11-23 | A kind of biophysics dual fresh-keeping hoarding method of sandwich |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046388A (en) * | 2017-12-19 | 2018-05-18 | 安徽仁维环保工程科技有限公司 | A kind of gas composition for sewage sterilization |
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|---|---|---|---|---|
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