CN106947267A - A kind of meat-eating race antibiotic property packaging film - Google Patents
A kind of meat-eating race antibiotic property packaging film Download PDFInfo
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
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- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/04—Alginic acid; Derivatives thereof
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- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2489/00—Characterised by the use of proteins; Derivatives thereof
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of meat-eating race antibiotic property packaging film, it is related to packaging for foodstuff technical field of membrane, its composition includes：Beef tendon collagen, carboxymethyl chitosan, epoxidized soybean oil, sodium alginate, polyglyceryl fatty acid ester, glycerin monostearate, mixing herb liquid, polymer alumina, terpene resin, zeolite powder, powder of straw, deionized water.Its preparation method is simply, conveniently；There is food package film obvious anti-salmonella to belong to, and enteropathogenic E. Coli, jejunum campylobacter Pseudomonas, Proteus, the effect of staphylococcus aureus prevents pollution of such bacterium to meat product, effectively prevent meat product rotten and corruption；Packaging film safety non-toxic, without worrying food additives, the problems such as remnant nitrite；Packaging film flexible, is difficult tear breakage, with good market application foreground.
Description
Technical field：
The present invention relates to food package film preparing technical field, and in particular to a kind of meat-eating race antibiotic property packaging film and its system
Preparation Method.
Background technology：
Food product packing film is, for being wrapped in food surface, mainly to decompose microbial bacterial and extraneous contamination to isolate
The entrance of thing, prevents and extends the high polymer material of food spoilage.Antibacterial film packaging is most beneficial, its energy for food
Constantly suppress the growth of microorganism by antiseptic, it is ensured that the safety of food, extend the shelf life of food.Consumer is allowed to enjoy
By higher quality of the life.
In daily life, consumer can also select some packaging types carnivorous, such as except the demand to fresh meat-eating race：
All kinds of carnivorous food such as frozen chicken class, fish, ox class, sheep class.China's meat total output is sure to occupy generation always since nineteen ninety
Boundary prostatitis, but the kind and quality of China's meat products and advanced international standard gap quite big, the wherein packaging of meat product
Technology is also an important factor.As China's production of meat is continuously increased, the process technology of meat is also being improved constantly, its
The packaging of middle meat and meat products is particularly important.Because the packaging of meat products not only acts as the effect of decoration aesthetic appeal, mainly
It is to prevent pollution.
In recent years, China's food-safety problem causes many disputes, and lifting Food Quality Safety turns into entire society
Expectation.And it is very effective means to improve the food security of meat products by specialty packaging.Make a general survey of China's generation
Food safety affair, the unsafe incidents for being related to meat occupy a big chunk, according to《Chinese food report》Data shows, China
The random checking of meat product is arranged in the ground of Beijing-Tianjin Shanghai three since nineteen ninety, for the first time, and qualification rate is only 70%, 50%,
30%, its subject matter is that microorganism is exceeded serious, food additives, and remnant nitrite etc. causes the reason for problem occurs
A lot, such as manufacturing enterprise's processing conditions is not up to standard, and administration of health is poor, and meat product packaging does not play effect of guaranteeing the quality etc..
And in meat product microorganism pollution, mainly by Salmonella, enteropathogenic E. Coli, jejunum campylobacter Pseudomonas,
Proteus, staphylococcus aureus etc. cause meat food to pollute, after food microbiological contamination, are made by viable bacteria and endotoxic coordination
With causing food pollution.
The content of the invention：
The technical problems to be solved by the invention are to provide a kind of with high-efficiency pollution-proof dye, particular for Salmonella,
Enteropathogenic E. Coli, jejunum campylobacter Pseudomonas, Proteus, staphylococcus aureus etc., and it is nontoxic, raw material is easy to get, prepared
The simple meat Package film of method.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of meat-eating race antibiotic property packaging film, includes the raw material of following number：
60-100 parts of beef tendon collagen, 50-150 parts of carboxymethyl chitosan, 15-30 parts of epoxidized soybean oil, sodium alginate
15-30 parts, 2-10 parts of polyglyceryl fatty acid ester, 2-10 parts of glycerin monostearate, 20-60 parts of herb liquid, polymer alumina 2-
10 parts, 5-20 parts of terpene resin, 2-10 parts of zeolite powder, 2-10 parts of powder of straw, 10-100 parts of deionized water.
Wherein herb liquid includes：Chinese ephedra 20-80g, Herba Andrographitis 20-60g, selfheal 10-60g, GTW 10-90g,
Giant knotweed 20-60g, bark of ash 20-90g, dried immature fruit of citron orange 20-80g, honeysuckle 20-90g, field pennycress 20-90g, root of kudzu vine 20-80g, folium isatidis
20-90g。
Its preparation method is as follows：
(1) Chinese ephedra of high-quality, Herba Andrographitis, selfheal, GTW, giant knotweed, the bark of ash, the dried immature fruit of citron orange, honeysuckle, Patrinia scaniosaefolia are selected
Grass, the root of kudzu vine, folium isatidis is added in 10 times of water big fire heating and boils 10-15min, after switch to small fire and endure 2-6h slowly, treat that decoction is boiled
After dense, be cooled to room temperature, be stored at room temperature precipitates overnight, after abandon precipitation take supernatant 2000-5000rpm/min centrifuge, abandon precipitation
Supernatant is taken, it is 0.02-500 μm of supermicro filtration membrane filtering that rear supernatant, which carries out aperture, takes filtrate to obtain herb liquid；
(2) beef tendon collagen is added in the water of 5 times of weight, it is dissolved under high-speed stirred, filtering solution is removed
Undissolved collagen and bubble, obtain beef tendon collagen solution；
(3) carboxymethyl chitosan is added in 5 times of water, being stored at room temperature 8-24h is swelled it, obtains carboxymethyl chitosan
Solution；
(4) sodium alginate is added under stirring into the beef tendon collagen solution of preparation, polyglyceryl fatty acid ester is single stearic
Acid glyceride, polymer alumina, terpene resin is warming up to 40-60 DEG C of stirring 15-60min, adds acid or alkaloid substance regulation PH
Value is rear to stand room temperature cooling to 6-7, then 100-500rpm/min 50-60 DEG C insulated and stirred 20-40min, obtains mixed solution；
(5) epoxidized soybean oil, zeolite powder, powder of straw, herb liquid and remaining deionized water are added into mixed solution, fully
Stirring is well mixed it, is filtrated to get into film liquid；
(6) will be into film liquid 2000-5000rpm/min homogeneous scattered 10-20min, then will be coated with into film liquid again before film forming
On film-forming plates, then 30-50 DEG C of dry 12-24h, film is taken off after drying, and it is the closed of 45-65% to save it in ambient humidity
Container is wherein.
The acid or alkaline matter：Acid substance is one kind in dilute hydrochloric acid solution, acetum, carbon acid solution
Or more than one；Alkaline matter is the one or more in sodium carbonate, sodium acid carbonate or NaOH.
The beneficial effects of the invention are as follows：There is food package film prepared by the present invention obvious anti-salmonella to belong to, pathogenic big
Enterobacteria, jejunum campylobacter Pseudomonas, Proteus, the effect of staphylococcus aureus prevents pollution of such bacterium to meat product,
Effectively prevent meat product rotten and corruption；Packaging film safety non-toxic, without worrying food additives, remnant nitrite etc. is asked
Topic；Packaging film flexible, is difficult tear damaged.
Embodiment：
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1：
Beef tendon collagen 60, carboxymethyl chitosan 50, epoxidized soybean oil 15, sodium alginate 15, polyglyceryl fatty acid ester 4
Part, 3 parts of glycerin monostearate, 20 parts of herb liquid, 3 parts of polymer alumina, 5 parts of terpene resin, 2 parts of zeolite powder, powder of straw 2
Part, 40 parts of deionized water.
Wherein herb liquid includes：Chinese ephedra 30g, Herba Andrographitis 30g, selfheal 30g, GTW 30g, giant knotweed 30g, the bark of ash
30g, dried immature fruit of citron orange 40g, honeysuckle 40g, field pennycress 30g, root of kudzu vine 30g, folium isatidis 30g.
Packaging film preparation is carried out according to above-mentioned formula, comprised the following steps that：
(1) Chinese ephedra of selection high-quality, Herba Andrographitis, selfheal, GTW, giant knotweed, the bark of ash, the dried immature fruit of citron orange, honeysuckle, Patrinia scaniosaefolia
Grass, the root of kudzu vine, folium isatidis are added in 10 times of water big fire heating and boil 15min, after switch to small fire and endure 4h slowly, treat that decoction boiling down is thick
Afterwards, be cooled to room temperature, be stored at room temperature precipitates overnight, after abandon precipitation take supernatant 2000rpm/min centrifuge, abandon precipitation and take supernatant, after
It is 0.02-500 μm of supermicro filtration membrane filtering that supernatant, which carries out aperture, takes filtrate to obtain herb liquid；
(2) beef tendon collagen is added in the water of 5 times of weight, it is dissolved under high-speed stirred, filtering solution is removed
Undissolved collagen and bubble, obtain beef tendon collagen solution；
(3) carboxymethyl chitosan is added in 5 times of water, being stored at room temperature 24h is swelled it, obtains carboxymethyl chitosan molten
Liquid；
(4) sodium alginate, polyglyceryl fatty acid ester, single tristearin are added under stirring into the beef tendon collagen solution of preparation
Acid glyceride, polymer alumina, terpene resin, are warming up to 40 DEG C of stirring 20min, add acid or alkaloid substance adjusts pH value to 6,
60 DEG C of insulated and stirred 20min of 200rpm/min, rear to stand room temperature cooling again, obtains mixed solution；
(5) epoxidized soybean oil, zeolite powder, powder of straw, herb liquid and remaining deionized water are added into mixed solution, fully
Stirring is well mixed it, is filtrated to get into film liquid；
(6) before film forming will into film liquid 2000rpm/min homogeneous scattered 10min again, after will be coated on film-forming plates into film liquid
On, then 30 DEG C of dry 12h take off film after drying, and save it in closed container that ambient humidity is 45% wherein.
The acid or alkaline matter：Acid substance is that dilute hydrochloric acid solution is a kind of；Alkaline matter is that sodium carbonate is a kind of.
Embodiment 2：
80 parts of beef tendon collagen, 80 parts of carboxymethyl chitosan, 20 parts of epoxidized soybean oil, 15 parts of sodium alginate, polyglycereol
6 parts of fatty acid ester, 4 parts of glycerin monostearate, 80 parts of herb liquid, 3 parts of polymer alumina, 6 parts of terpene resin, 4 parts of zeolite powder,
3 parts of powder of straw, 20 parts of deionized water.
Wherein herb liquid includes：Chinese ephedra 40g, Herba Andrographitis 40g, selfheal 40g, GTW 40g, giant knotweed 30g, the bark of ash
40g, dried immature fruit of citron orange 50g, honeysuckle 50g, field pennycress 30g, root of kudzu vine 40g, folium isatidis 30g.
Its preparation method is as follows：
(7) Chinese ephedra of selection high-quality, Herba Andrographitis, selfheal, GTW, giant knotweed, the bark of ash, the dried immature fruit of citron orange, honeysuckle, Patrinia scaniosaefolia
Grass, the root of kudzu vine, folium isatidis are added in 10 times of water big fire heating and boil 15min, after switch to small fire and endure 3h slowly, treat that decoction boiling down is thick
Afterwards, be cooled to room temperature, be stored at room temperature precipitates overnight, after abandon precipitation take supernatant 3000rpm/min centrifuge, abandon precipitation and take supernatant, after
It is 0.02-500 μm of supermicro filtration membrane filtering that supernatant, which carries out aperture, takes filtrate to obtain herb liquid；
(8) beef tendon collagen is added in the water of 5 times of weight, it is dissolved under high-speed stirred, filtering solution is removed
Undissolved collagen and bubble, obtain beef tendon collagen solution；
(9) carboxymethyl chitosan is added in 5 times of water, being stored at room temperature 18h is swelled it, obtains carboxymethyl chitosan molten
Liquid；
(10) sodium alginate, polyglyceryl fatty acid ester, list are added firmly into the beef tendon collagen solution of preparation under stirring
Glycerol, polymer alumina, terpene resin, be warming up to 50 DEG C stirring 30min, add acid or alkaloid substance adjust pH value to
7, then 60 DEG C of insulated and stirred 40min of 300rpm/min, it is rear to stand room temperature cooling, obtain mixed solution；
(11) epoxidized soybean oil, zeolite powder, powder of straw, herb liquid and remaining deionized water are added into mixed solution, is filled
Divide stirring to be well mixed it, be filtrated to get into film liquid；
(12) will be into film liquid 3000rpm/min homogeneous scattered 20min, then film-forming plates will be coated on into film liquid again before film forming
On, then 40 DEG C of dry 12h take off film after drying, and save it in closed container that ambient humidity is 45-65% wherein.
The acid or alkaline matter：Acid substance is that acetum is a kind of；Alkaline matter is that sodium hydroxide solution is a kind of.
Carry out setting three groups in experiment application, experiment respectively in the embodiment that the present invention is provided：
A groups：Without herb liquid；
B groups：Contain herb liquid；
C groups：Deionized water
Experiment 1：Above-mentioned experiment packet is respectively to Salmonella (Samonella), enteropathogenic E. Coli, campylobacter jejuni
Category, Proteus (Proteus), staphylococcus aureus (Staphylococccus aureus) carry out bacteriostatic test and ground
Study carefully, test strain is provided by local universities and colleges.
Experimental method：In an aseptic environment, each bacterium culture medium is prepared, plate is down flat using diameter 9cm culture dish, waits to cultivate
After base solidification, Salmonella, enteropathogenic E. Coli, jejunum campylobacter Pseudomonas, proteus are individually inoculated with into culture dish respectively
Category, staphylococcus aureus 100-200cfu/ wares, using rubbing method per ware bacterial strain even spread, every kind of bacterial strain prepares 2 and put down
Plate, after A groups, B groups, C group samples are added into every ware respectively, wherein each use diameter 1cm of A and B groups film is put in painting culture dish
Centre, C groups draw 0.5ml deionized waters and are coated with each culture dish, and each flat board is inverted culture, respectively at 24h, 48h, 72h, 96h,
120h observes each ware situation.
Experimental result is as follows：Observing time measures each antibacterial circle diameter size：Mm (average value)
Salmonella
Enteropathogenic E. Coli
Jejunum campylobacter Pseudomonas
Proteus
Staphylococcus aureus
Conclusion：From above-mentioned experimental result：Packaging film comprising decoction component is wrapped to every kind of bacterial strain bacteriostasis than not
Containing the strong of decoction；And the formula packaging film plays bacteriostasis to every kind of bacterial strain；As time went on, packaging film presses down to bacterial strain
Make of not weakening, useful effect can be at least played in 5 days.
Experiment 2：Above-mentioned experiment packet is respectively to Salmonella (Samonella), enteropathogenic E. Coli, campylobacter jejuni
Category, Proteus (Proteus), staphylococcus aureus (Staphylococccus aureus) carry out bacteriostatic test and ground
Study carefully, test strain is provided by local universities and colleges.
Experimental method：In an aseptic environment, each bacterium culture medium is prepared, plate is down flat using diameter 9cm culture dish, waits to cultivate
After base solidification, Salmonella, enteropathogenic E. Coli, jejunum campylobacter Pseudomonas, proteus are individually inoculated with into culture dish respectively
Category, staphylococcus aureus 100-200cfu/ wares, using rubbing method per ware bacterial strain even spread, every kind of bacterial strain prepares 2 and put down
Plate, after A groups, B groups, C group samples are added into every ware respectively, wherein each use diameter 1cm of A and B groups film is put in painting culture dish
Centre, C groups draw 0.5ml deionized waters and are coated with each culture dish, and each flat board is inverted culture, respectively at 24h, 48h, 72h, 96h,
120h observes each ware situation.
Experimental result is as follows：Observing time measures antibacterial circle diameter size：Mm (average value)
Salmonella
Enteropathogenic E. Coli
Jejunum campylobacter Pseudomonas
Proteus
Staphylococcus aureus
Conclusion：From above-mentioned experimental result：Packaging film comprising decoction component is wrapped to every kind of bacterial strain bacteriostasis than not
Containing the strong of decoction；And the formula packaging film plays bacteriostasis to every kind of bacterial strain；As time went on, packaging film presses down to bacterial strain
Make of not weakening, useful effect can be at least played in 5 days.And with the increase of decoction component in formula, packaging film is in list
Inhibitory effect strengthens in the time of position.
In summary experimental result shows that the packaging film inhibitory effect of this formula is better than traditional packaging film, and safety, nothing
Poison, and the food preservation time can be extended, and strong prevent the secondary pollution of meat product, and pollution in transit.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (4)
1. a kind of meat-eating race antibiotic property packaging film, it is characterised in that：Include the raw material of following number number：
60-100 parts of beef tendon collagen, 50-150 parts of carboxymethyl chitosan, 15-30 parts of epoxidized soybean oil, sodium alginate 15-30
Part, 2-10 parts of polyglyceryl fatty acid ester, 2-10 parts of glycerin monostearate, 20-60 parts of herb liquid, 2-10 parts of polymer alumina,
5-20 parts of terpene resin, 2-10 parts of zeolite powder, 2-10 parts of powder of straw, 10-100 parts of deionized water.
2. meat-eating race antibiotic property packaging film according to claim 1, it is characterised in that：Herb liquid include Chinese ephedra 20-80g,
Herba Andrographitis 20-60g, selfheal 10-60g, GTW 10-90g, giant knotweed 20-60g, bark of ash 20-90g, dried immature fruit of citron orange 20-80g,
Honeysuckle 20-90g, field pennycress 20-90g, root of kudzu vine 20-80g, folium isatidis 20-90g.
3. meat-eating race antibiotic property packaging film according to claim 2, it is characterised in that：Preparation method is as follows：
(1) the selection Chinese ephedra of high-quality, Herba Andrographitis, selfheal, GTW, giant knotweed, the bark of ash, the dried immature fruit of citron orange, honeysuckle, field pennycress,
The root of kudzu vine, folium isatidis are added in 10 times of water big fire heating and boil 10-15min, after switch to small fire and endure 2-6h slowly, treat that decoction boiling down is thick
Afterwards, be cooled to room temperature, be stored at room temperature precipitates overnight, after abandon precipitation take supernatant 2000-5000rpm/min centrifuge, abandon precipitation and take
Clearly, it is 0.02-500 μm of supermicro filtration membrane filtering that rear supernatant, which carries out aperture, takes filtrate to obtain herb liquid；
(2) beef tendon collagen is added in the water of 5 times of weight, it is dissolved under high-speed stirred, filtering solution removes not molten
Collagen and bubble are solved, beef tendon collagen solution is obtained；
(3) carboxymethyl chitosan is added in 5 times of water, being stored at room temperature 8-24h is swelled it, obtains carboxymethyl chitosan molten
Liquid；
(4) into the beef tendon collagen solution of preparation, addition sodium alginate, polyglyceryl fatty acid ester, monostearate are sweet under stirring
Grease, polymer alumina, terpene resin, be warming up to 40-60 DEG C stirring 15-60min, add acid or alkaloid substance adjust pH value to
6-7, then 100-500rpm/min 50-60 DEG C insulated and stirred 20-40min, it is rear to stand room temperature cooling, obtain mixed solution；
(5) epoxidized soybean oil, zeolite powder, powder of straw, herb liquid and remaining deionized water are added into mixed solution, is sufficiently stirred for
It is well mixed, film liquid is filtrated to get into；
(6) will be into film liquid 2000-5000rpm/min homogeneous scattered 10-20min, then will be coated on into film liquid again before film forming
On diaphragm plate, then 30-50 DEG C of dry 12-24h, film is taken off after drying, and saves it in the closed container that ambient humidity is 45-65%
Wherein.
4. meat-eating race antibiotic property packaging film according to claim 3, it is characterised in that：The acid or alkaline matter：Sour thing
Matter is the one or more in dilute hydrochloric acid solution, acetum, carbon acid solution；Alkaline matter is sodium carbonate, sodium acid carbonate
Or the one or more in NaOH.
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| CN201710265117.6A CN106947267A (en) | 2017-04-21 | 2017-04-21 | A kind of meat-eating race antibiotic property packaging film |
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| CN201710265117.6A CN106947267A (en) | 2017-04-21 | 2017-04-21 | A kind of meat-eating race antibiotic property packaging film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107510751A (en) * | 2017-07-29 | 2017-12-26 | 马鞍山市金农牧业有限公司 | A kind sheep prevents keratitis washing lotion |
| CN107541077A (en) * | 2017-08-22 | 2018-01-05 | 合肥先智商贸有限责任公司 | A kind of meat product package film and its manufacture method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104610756A (en) * | 2015-01-15 | 2015-05-13 | 安徽巢湖南方膜业有限责任公司 | Edible cereal protein-cellulose composite packaging film for meat products |
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| CN104610756A (en) * | 2015-01-15 | 2015-05-13 | 安徽巢湖南方膜业有限责任公司 | Edible cereal protein-cellulose composite packaging film for meat products |
| CN104610757A (en) * | 2015-01-15 | 2015-05-13 | 安徽巢湖南方膜业有限责任公司 | Degradable cereal prolamin-chitosan composite packaging film for fruits and vegetables |
| CN105332315A (en) * | 2015-11-05 | 2016-02-17 | 义乌市义南纸业有限公司 | Food wrapper with antibacterial and bacteriostatic effects and preparation method thereof |
| CN105384974A (en) * | 2015-12-15 | 2016-03-09 | 张进 | Chitosan biomembrane |
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| CN107510751A (en) * | 2017-07-29 | 2017-12-26 | 马鞍山市金农牧业有限公司 | A kind sheep prevents keratitis washing lotion |
| CN107541077A (en) * | 2017-08-22 | 2018-01-05 | 合肥先智商贸有限责任公司 | A kind of meat product package film and its manufacture method |
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