CN109897233A - Chilled meat plastic film and preparation method thereof - Google Patents
Chilled meat plastic film and preparation method thereof Download PDFInfo
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- CN109897233A CN109897233A CN201910199286.3A CN201910199286A CN109897233A CN 109897233 A CN109897233 A CN 109897233A CN 201910199286 A CN201910199286 A CN 201910199286A CN 109897233 A CN109897233 A CN 109897233A
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Abstract
The invention proposes a kind of chilled meat plastic films and preparation method thereof, are mainly prepared by the raw material of following weight percent: Herba Dendrobii extract 2~7%, trehalose 10~20%, sodium carboxymethylcellulose 0.6~1.3%, sodium alginate 0.6~1.3%, polylactic acid 8~12%, Castor oil 0.5~1.1% and emulsifier 1~2%, surplus are water.Herba Dendrobii extract: 1) being added to the water to be formed with trehalose by preparation method, mixed solution, adds after polylactic acid is stirred 4~6h under the conditions of 80~90 DEG C, emulsifier is added, natural cooling obtains film forming crude liquid；2) homogeneous；3) remaining material is added into homogenizing fluid and is stirred mixing, obtains into film liquid；4) it will be added at film liquid in mold, it is dry, it stands, demoulds to get chilled meat plastic film.The preservative film not only hygienic environment-protecting also has good resistance to low temperature, can effectively extend the shelf-life of chilled meat.
Description
Technical field
The invention belongs to field of packaging material, and in particular to a kind of chilled meat plastic film and preparation method thereof.
Background technique
The shelf-life of chilled meat in cold chain is usually 3-7 days, and to point-of-sale terminal since processing, the remaining shelf-life is logical
It is often 1~3 day, in sale storage process, surface can inevitably contact the bacterium on chopping block and in air, and bacterium is in chilled meat
Surface is bred, and has been catalyzed the rotten of meat.In order to extend the shelf-life of chilled meat, facilitates storage, leave the ice fresh meat consumption of cold chain
Person is placed in refrigerator after usually being wrapped up with preservative film and refrigerates, and chilled meat is isolation air using the main function of preservative film, reduces
Pollution of the miscellaneous bacteria to chilled meat in air, and prevent cross contamination, but can only also make chilled meat persistently extend again save 1~
2 days, the shelf-life was short.
Chilled meat, which refers to, will meet after the animal carcasses that quarantine system requires are butchered rapidly by cooling maturation processing, make trunk
Temperature (using back leg inside as measurement point) is reduced to 0~4 DEG C interior for 24 hours, and begins in subsequent processing, circulation and retail sales process
The fresh meat at 0~4 DEG C is protected eventually.It is all chilled meat that foreign countries' fresh meat surpasses 90% consumption in the market at present.The consumption water of China's meat
It is flat not only to be limited by income level, also limited by supply.
Nearly 90% fresh meat of China's consumption is all that the Fresh meat Jing Guo deep processing, the market of chilled meat are not occupied
Rate is very low, is engaged in enterprise's phoenix feathers and unicorn horns of chilled meat production and processing.It is in the presence of that this that supply falls short of demand is mainly chilled
The growth that meat can not completely inhibit certain psychrophiles such as staphylococcus aureus, coliform etc. in storing sales process is numerous
It grows, chilled meat surface brown stain and juice loss situation is serious, shelf life is short is unfavorable for transporting for long-distance.
Summary of the invention
The present invention proposes a kind of chilled meat plastic film, and the preservative film not only hygienic environment-protecting also has good lower temperature resistance
Can, it can effectively extend the shelf-life of chilled meat.
The technical scheme of the present invention is realized as follows:
A kind of chilled meat plastic film, is mainly prepared by the raw material of following weight percent:
Herba Dendrobii extract 2~7%, trehalose 10~20%, sodium carboxymethylcellulose 0.6~1.3%, sodium alginate 0.6
~1.3%, polylactic acid 8~12%, Castor oil 0.5~1.1% and emulsifier 1~2%, surplus are water.
Preferably, the Herba Dendrobii extract is mainly prepared by the following method to obtain:
Dendrobium nobile is added in the water of 10 to 20 times of quality and carries out boiling processing, is subsequently cooled to 40~60 DEG C, be beaten
Processing, obtains dendrobium nobile slurries, then sequentially adds cellulase and Thermostable α-Amylase, 2~4h of enzymolysis time, then heat up and go out
Work obtains enzymolysis liquid, then carries out low temperature concentrate drying, can be obtained Herba Dendrobii extract.
Preferably, the additive amount of the cellulase is the 0.1~0.2% of dendrobium nobile weight, the Thermostable α-Amylase
Additive amount be dendrobium nobile weight 0.06~0.12%.
Preferably, the emulsifier is tween.
It is a further object to provide a kind of preparation methods of chilled meat plastic film, comprising the following steps:
1) Herba Dendrobii extract is added to the water to be formed with trehalose, mixed solution adds polylactic acid at 80~90 DEG C
Under the conditions of be stirred 4~6h after, be added emulsifier, natural cooling obtain film forming crude liquid；
2) homogeneous: film forming crude liquid is first subjected to ultrasonic homogenization, then microjet homogeneous carries out second homogenate, obtains homogeneous
Liquid；
3) remaining material is added into homogenizing fluid and is stirred mixing, obtains into film liquid；
4) it will be added at film liquid in mold, it is dry, it stands, demoulds to get chilled meat plastic film.
Preferably, the condition of the ultrasonic homogeneous of the step 2) are as follows: supersonic frequency be 28~32kHz, the time be 35~
45min。
Preferably, the condition of the microjet homogeneous of the step 2) are as follows: 100~120MPa is recycled 2~3 times.
Preferably, dry temperature is 55~65 DEG C.
Beneficial effects of the present invention:
1) chilled meat plastic film of the invention is using Herba Dendrobii extract and trehalose as the main component at film liquid, Neng Goufu
Give preservative film good antibacterial property energy and fresh keeping property.Preservative film of the invention can be up to 20 for storing the chilled pork shelf-life
It, beef was up to 21 days, and mutton was up to 20 days, and chicken can be up to 16 days, and duck can be up to 15 days.Preservative film of the invention has good
Good lower temperature resistance, tolerable -4 DEG C of the low temperature of this kind of material also avoid simultaneously so reducing the broken bag rate of frozen product
Product freeze-drying dehydration, ensure that the flavor of product.
2) chilled meat plastic film of the invention passes through the shape that interacts between different molecular using Edible material as primary raw material
At the film with network structure, it is suitble to packaged food, it is degradable, free from environmental pollution；Chilled meat plastic film is attached to food surface,
Compactness is high, and the tensile strength of film is larger, water preventing ability is good, has stronger inoxidizability, and transparency is high.
Specific embodiment
Embodiment 1
Herba Dendrobii extract is mainly prepared by the following method to obtain:
Dendrobium nobile is added in the water of 10 times of quality and carries out boiling processing, is subsequently cooled to 40 DEG C, carry out mashing processing, obtain
Then dendrobium nobile slurries sequentially add cellulase and Thermostable α-Amylase, enzymolysis time 4h, then the inactivation that heats up and are digested
Liquid, then low temperature concentrate drying is carried out, it can be obtained Herba Dendrobii extract.The additive amount of cellulase is the 0.1% of dendrobium nobile weight, resistance to
The additive amount of high-temperatureα-amylase is the 0.12% of dendrobium nobile weight.
Embodiment 2
Herba Dendrobii extract is mainly prepared by the following method to obtain:
Dendrobium nobile is added in the water of 20 times of quality and carries out boiling processing, is subsequently cooled to 60 DEG C, carry out mashing processing, obtain
Then dendrobium nobile slurries sequentially add cellulase and Thermostable α-Amylase, enzymolysis time 2h, then the inactivation that heats up and are digested
Liquid, then low temperature concentrate drying is carried out, it can be obtained Herba Dendrobii extract.The additive amount of cellulase is the 0.2% of dendrobium nobile weight, institute
The additive amount for stating Thermostable α-Amylase is the 0.06% of dendrobium nobile weight.
Embodiment 3
A kind of chilled meat plastic film, is mainly prepared by the raw material of following weight percent:
The Herba Dendrobii extract 5% of embodiment 1, trehalose 13%, sodium carboxymethylcellulose 0.6%, sodium alginate 0.8%,
Polylactic acid 8%, Castor oil 0.5% and Tween-80 1.2%, surplus are water.
The preparation method of chilled meat plastic film, comprising the following steps:
1) Herba Dendrobii extract of embodiment 1 is added to the water to be formed with trehalose, mixed solution adds polylactic acid and exists
After being stirred 5h under the conditions of 85 DEG C, Tween-80 is added, natural cooling obtains film forming crude liquid；
2) film forming crude liquid first homogeneous: is subjected to ultrasound homogenization, supersonic frequency 30kHz, time 40min, then micro-
Jet stream homogeneous carries out second homogenate, and 100MPa recycles 2 times, obtains homogenizing fluid；
3) remaining material is added into homogenizing fluid and is stirred mixing, obtains into film liquid；
4) it will be added at film liquid in mold, dry, dry temperature is 60 DEG C, is stood, and is demoulded fresh-keeping to get chilled meat
Film.
Embodiment 4
A kind of chilled meat plastic film, is mainly prepared by the raw material of following weight percent:
The Herba Dendrobii extract 2% of embodiment 2, trehalose 10%, sodium carboxymethylcellulose 0.9%, sodium alginate 0.6%,
Polylactic acid 10%, Castor oil 0.7% and Tween-80 1%, surplus are water.
The preparation method of chilled meat plastic film, comprising the following steps:
1) Herba Dendrobii extract is added to the water to be formed with trehalose, mixed solution adds polylactic acid in 80 DEG C of conditions
Under be stirred 6h after, be added Tween-80, natural cooling obtain film forming crude liquid；
2) film forming crude liquid first homogeneous: is subjected to ultrasound homogenization, supersonic frequency 28kHz, time 45min, then micro-
Jet stream homogeneous carries out second homogenate, and 100MPa recycles 3 times, obtains homogenizing fluid；
3) remaining material is added into homogenizing fluid and is stirred mixing, obtains into film liquid；
4) it will be added at film liquid in mold, dry, dry temperature is 55 DEG C, is stood, and is demoulded fresh-keeping to get chilled meat
Film.
Embodiment 5
A kind of chilled meat plastic film, is mainly prepared by the raw material of following weight percent:
The Herba Dendrobii extract 7% of embodiment 1, trehalose 15%, sodium carboxymethylcellulose 1.3%, sodium alginate 1.1%,
Polylactic acid 12%, Castor oil 0.5% and Tween-80 2%, surplus are water.
The preparation method of chilled meat plastic film, comprising the following steps:
1) Herba Dendrobii extract of embodiment 1 is added to the water to be formed with trehalose, mixed solution adds polylactic acid and exists
After being stirred 4h under the conditions of 90 DEG C, Tween-80 is added, natural cooling obtains film forming crude liquid；
2) film forming crude liquid first homogeneous: is subjected to ultrasound homogenization, supersonic frequency 32kHz, time 35min, then micro-
Jet stream homogeneous carries out second homogenate, and 120MPa recycles 2 times, obtains homogenizing fluid；
3) remaining material is added into homogenizing fluid and is stirred mixing, obtains into film liquid；
4) it will be added at film liquid in mold, dry, dry temperature is 65 DEG C, is stood, and is demoulded fresh-keeping to get chilled meat
Film.
Embodiment 6
A kind of chilled meat plastic film, is mainly prepared by the raw material of following weight percent:
The Herba Dendrobii extract 6% of embodiment 2, trehalose 20%, sodium carboxymethylcellulose 0.9%, sodium alginate 1.3%,
Polylactic acid 10%, Castor oil 1.1% and Tween-80 1%, surplus are water.
The preparation method of chilled meat plastic film, comprising the following steps:
1) Herba Dendrobii extract is added to the water to be formed with trehalose by embodiment 2, and mixed solution adds polylactic acid and exist
After being stirred 5h under the conditions of 85 DEG C, Tween-80 is added, natural cooling obtains film forming crude liquid；
2) film forming crude liquid first homogeneous: is subjected to ultrasound homogenization, supersonic frequency 30kHz, time 40min, then micro-
Jet stream homogeneous carries out second homogenate, and 110MPa recycles 3 times, obtains homogenizing fluid；
3) remaining material is added into homogenizing fluid and is stirred mixing, obtains into film liquid；
4) it will be added at film liquid in mold, dry, dry temperature is 65 DEG C, is stood, and is demoulded fresh-keeping to get chilled meat
Film.
Test example 1
The chilled meat plastic film of embodiment 3 to 6 is subjected to performance detection, main result is as follows:
Table 1
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of chilled meat plastic film, which is characterized in that be mainly prepared by the raw material of following weight percent:
Herba Dendrobii extract 2~7%, trehalose 10~20%, sodium carboxymethylcellulose 0.6~1.3%, sodium alginate 0.6~
1.3%, polylactic acid 8~12%, Castor oil 0.5~1.1% and emulsifier 1~2%, surplus are water.
2. chilled meat plastic film according to claim 1, which is characterized in that the Herba Dendrobii extract is mainly by with lower section
Method is prepared:
Dendrobium nobile is added in the water of 10 to 20 times of quality and carries out boiling processing, is subsequently cooled to 40~60 DEG C, carry out mashing processing,
Dendrobium nobile slurries are obtained, then sequentially add cellulase and Thermostable α-Amylase, 2~4h of enzymolysis time, then heat up and inactivate
To enzymolysis liquid, then low temperature concentrate drying is carried out, can be obtained Herba Dendrobii extract.
3. chilled meat plastic film according to claim 2, which is characterized in that the additive amount of the cellulase is dendrobium nobile weight
The 0.1~0.2% of amount, the additive amount of the Thermostable α-Amylase are the 0.06~0.12% of dendrobium nobile weight.
4. chilled meat plastic film according to claim 1, which is characterized in that the emulsifier is tween.
5. the preparation method of chilled meat plastic film as described in claim 1, which comprises the following steps:
1) Herba Dendrobii extract is added to the water to be formed with trehalose, mixed solution adds polylactic acid in 80~90 DEG C of conditions
Under be stirred 4~6h after, be added emulsifier, natural cooling obtain film forming crude liquid；
2) homogeneous: film forming crude liquid is first subjected to ultrasonic homogenization, then microjet homogeneous carries out second homogenate, obtains homogenizing fluid；
3) remaining material is added into homogenizing fluid and is stirred mixing, obtains into film liquid；
4) it will be added at film liquid in mold, it is dry, it stands, demoulds to get chilled meat plastic film.
6. the preparation method of chilled meat plastic film according to claim 5, which is characterized in that the ultrasound of the step 2) is
The condition of matter are as follows: supersonic frequency is 28~32kHz, and the time is 35~45min.
7. the preparation method of chilled meat plastic film according to claim 5, which is characterized in that the microjet of the step 2)
The condition of homogeneous are as follows: 100~120MPa is recycled 2~3 times.
8. the preparation method of chilled meat plastic film according to claim 5, which is characterized in that dry temperature is 55~65
℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199286.3A CN109897233A (en) | 2019-03-15 | 2019-03-15 | Chilled meat plastic film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199286.3A CN109897233A (en) | 2019-03-15 | 2019-03-15 | Chilled meat plastic film and preparation method thereof |
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| Publication Number | Publication Date |
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| CN109897233A true CN109897233A (en) | 2019-06-18 |
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ID=66952200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910199286.3A Withdrawn CN109897233A (en) | 2019-03-15 | 2019-03-15 | Chilled meat plastic film and preparation method thereof |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452509A (en) * | 2019-08-01 | 2019-11-15 | 山东省农业科学院农产品研究所 | One kind is fresh-keeping to use film |
| CN114891253A (en) * | 2022-06-29 | 2022-08-12 | 安徽工程大学 | Preservative film prepared from dendrobium officinale extract and preparation method and application thereof |
-
2019
- 2019-03-15 CN CN201910199286.3A patent/CN109897233A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452509A (en) * | 2019-08-01 | 2019-11-15 | 山东省农业科学院农产品研究所 | One kind is fresh-keeping to use film |
| CN110452509B (en) * | 2019-08-01 | 2021-09-07 | 山东省农业科学院农产品研究所 | Fresh-keeping film |
| CN114891253A (en) * | 2022-06-29 | 2022-08-12 | 安徽工程大学 | Preservative film prepared from dendrobium officinale extract and preparation method and application thereof |
| CN114891253B (en) * | 2022-06-29 | 2023-05-23 | 安徽工程大学 | Preservative film prepared from dendrobium candidum extract and preparation method and application thereof |
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Application publication date: 20190618 |
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