CN107397112A - A kind of packaging using radio frequency sterilization irons method for processing surface - Google Patents
A kind of packaging using radio frequency sterilization irons method for processing surface Download PDFInfo
- Publication number
- CN107397112A CN107397112A CN201610351454.2A CN201610351454A CN107397112A CN 107397112 A CN107397112 A CN 107397112A CN 201610351454 A CN201610351454 A CN 201610351454A CN 107397112 A CN107397112 A CN 107397112A
- Authority
- CN
- China
- Prior art keywords
- face
- radio frequency
- packaging
- sterilization
- irons
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/005—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment
- A23L3/01—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment using microwaves or dielectric heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
- B65B55/02—Sterilising, e.g. of complete packages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B2051/105—Heat seal temperature control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
The invention discloses a kind of packaging using radio frequency sterilization to iron method for processing surface, belongs to food processing field.The present invention is using commercially available face of ironing as raw material, by loading, packing, sterilizing and cooling obtains product packaging and irons face.Using radio frequency sterilization technology, while germicidal efficiency is improved, and the mouthfeel in the face of ironing preferably is maintained.The present invention is a kind of sterilization of high efficiency, and long shelf-life, technological process is simple, and product nutrient safe, energy consumption is low, is adapted to the packaging of industrial applications to iron method for processing surface.
Description
Technical field
The present invention relates to a kind of packaging using radio frequency sterilization to iron method for processing surface, belongs to food processing field.
Background technology
Face Gu Chengbing faces/noodle soup/thin pancake etc. is ironed, is a kind of higher ripe face system of water content originating from Xianyang, Shanxi province city
Product.Its process is divided into：Five key steps such as tune face, stand face, face of drying in the air, laminated and section.The face of ironing can direct dry-eating,
Soup can be added to eat.
Iron face in process, due to the pollution of yeast and mold etc., and it is high to iron face water content so that noodles exist
Mouldy fermentation is rotten during preservation.The sterilizing methods of generally use are：Chemical bacteriostatic agent is added in noodles, carries out antibacterial go out
Bacterium, so as to extend the storage life of noodles；By the way that the oxygen reduced in packaging is vacuum-packed, to suppress the growth of aerobic bacteria；It is logical
High temperature heat sterilization etc. is crossed, but any of the above method has the defects of certain.Chemical bacteriostatic agent is added, noodles can be made on the contrary
To be polluted into chemicals, vacuum packaging can only also suppress the growth of aerobic bacteria, be heated at high temperature due to slow, heat time length of conducting heat,
The quality of noodles can then be damaged.Radio frequency sterilization is to cause heating object using radio frequency (3KHz-300MHz electromagnetic wave)
The vibration migration of material strip electron ion and dipole rotate and convert electrical energy into heat energy, temperature of charge are improved, so as to kill micro- life
The method of thing.Compared to other method for disinfection, radio frequency sterilization can make to iron the micro- of face under shorter time and relatively low temperature
Biological indicators meet to require, and will not make the texture for ironing face that significant change occur.
There are three through retrieval and the closely related patent of this patent, concrete analysis is as follows：
Method for disinfection (publication number for kiwi-fruit juice：CN 104188046A)：Including kiwi-fruit juice is placed in into radio frequency dress
The step of radio frequency sterilization is carried out between the pole plate put.Compared with the present invention, its raw material is liquid material kiwi-fruit juice, with the present invention
In face of ironing significant difference be present, although being to be sterilized using radiothermics, for liquid material and low moisture
For the solid material of content, there is significant difference in principle of heating, and heating sterilization difficulty is very different.The another present invention uses
Be on sealed membrane install additional waterproof vent valve mode pack, sterilized again afterwards, belong to packaging after sterilize, exist with it
Obvious difference.
A kind of peanut butter of the high Resveratrol content of low fat and preparation method thereof (publication number：CN 105011241A)：Adopt
Sterilized with radio frequency and replace traditional thermal sterilization, sterilization to carry out hot filling after terminating, the product after filling cooling is stood into 24h vertically
Cured above, obtain product peanut butter.Compared with the present invention, there is obvious difference, and this hair in its raw material with the present invention
It is bright to be packed using the mode for installing waterproof vent valve additional on sealed membrane, sterilized, sterilized after belonging to packaging again afterwards, with
Obvious difference be present in it.
A kind of infrared vacuum drying of intermediate waves combines the method (disclosure that flexible sterilization prepares half-dry type conditioning hand-torn stewed beef
Number：CN 105146553A)：It uses nano zine oxide joint radio frequency sterilization to carry out sterilization processing to beef.With phase of the present invention
Obvious difference, and its long sterilizing time, low production efficiency with the present invention be present than, its raw material and with sterilization mode.
The content of the invention
The defects of ironing product quality after face preservation technology cannot be guaranteed quick sterilization and handle for existing packaging, applicant
Carry out widely studied, found to be applied to the radiothermics that nut is dried and biscuit bakees by traditional and iron applied to packaging
Bactericidal effect is good in the processing in face.
The purpose of the present invention is that a kind of packaging with long, sterilization of high efficiency the nutrient safe of shelf life of exploitation irons adding for face
Work method.Commercially available face of ironing obtains finished product after loading, packing and sterilize.Specifically, the present invention is by following technologies
What scheme was realized.
(1) raw material：Machining the time is no more than 24h, and commercially available less than 30% of moisture irons face；
(2) load：95-105g is ironed into face to be packed into the plastics box that material is PP.Wherein height of materials 35mm, container height
For 42mm, top internal diameter a diameter of 120mm, base diameter 100mm；
(3) pack：Waterproof vent valve of one waterproof ventilated membrane diameter more than 12mm is installed at sealed membrane center, it is right after overlay film
Plastics box carries out heat-seal process, and sealing temperature is 180 DEG C, time 20-30s；
(4) sterilize：Product after packaging is subjected to sterilization processing, pole plate spacing using 6kW, 27.12MHz radio frequency heating equipment
For 95-150mm, material final temperature is 80-90 DEG C；
(5) cool down：Will it is treated after it is box-packed iron face and place cooled down at room temperature, that is, obtain packaging and iron face product.
The advantages and positive effects of the present invention are：
The microorganism such as total plate count and mould index in face that what the present invention was prepared iron meets provincial standard requirement,
And product has the characteristics of long shelf life.Whole production process high-efficiency environment friendly, radio frequency sterilization drastically increase germicidal efficiency.
This method is easy to operate, saves substantial amounts of man power and material, reduces the consumption of the energy, and the texture for ironing face does not have significant change,
It ensure that the quality of product.
Brief description of the drawings
The influence of Fig. 1 radio frequency processing bottom crown spacing and final temperature to total plate count (a) and mould (b) fatal rate
The influence of moisture and final temperature to total plate count (a) and mould (b) fatal rate under Fig. 2 radio frequency processings
Embodiment
The concrete technical scheme of the present invention is further described, in order to which those skilled in the art is further understood that this hair
It is bright, without forming the limitation to its right.
Embodiment 1, radio frequency heating processing packaging irons the heating in face under different condition
Face is ironed to the packaging that moisture is 21%, 25% and 29%, entered in the case where pole plate spacing is 100,115 and 130mm
Row radio frequency heating, being heated to the time needed for 70,80 and 90 DEG C is shown in Table 1.This is that control material reaches not in radio frequency sterilization process
Same final temperature provides the control of processing time.
The radio frequency heating of table 1 handles the temperature of charge time
Embodiment 2, the influence of pole plate spacing and material heating-up temperature to bactericidal effect
Original bacteria containing amount is 4.2 × 104±1.2×104(total plate count) and 2.3 × 103±0.4×103(mould), water
The face of ironing that point content is 29% is used for the not sterilization test of plates of similar polarity spacing and temperature.Fig. 1 is face of ironing in pole plate spacing
To carry out radio frequency sterilization under 100,115 and 130mm, fall the fatal rate of sum and mould with material heating-up temperature (70,80 and 90
DEG C) change.As a result show, under 3 pole plate spacing total plate count and mould fatal rate with the rise of final temperature and
Increase.In the case where pole plate spacing is 100mm, when final temperature is 70 DEG C, packaging irons face total plate count and mould fatal rate difference
For 89.3% ± 8.8% and 93.6% ± 5.3%.When final temperature reaches 90 DEG C, packaging irons face total plate count and mould is lethal
Rate is respectively 98.5% ± 0.6% and 100% ± 0.0%.When final temperature is 80 and 90 DEG C, between 3 different pole plates
In the absence of significant difference, total plate count and mould fatal rate have respectively reached 92.1% and more than 98%, sample at 80 DEG C
Bacteria containing amount be much smaller than total plate count (1.0 × 10 as defined in provincial standard4CFU/g, DB13/T 1060-2009) and mould contain
Measure (50CFU/g, DB13/T 1060-2009).
Embodiment 3, the influence of moisture and material heating-up temperature to bactericidal effect
Original bacteria containing amount is 3.7 × 104±4.0×103(total plate count) and 1.9 × 103±0.6×103The bag of (mould)
Dress irons the sterilization test that face is used for moisture and material heating-up temperature.Fig. 2 is carried out in the case where pole plate spacing is 115mm
Radio frequency heating, moisture 21%, 25% and 29% iron face total plate count and mould fatal rate with temperature of charge (70,80 and
90 DEG C) change.As a result show, under different moistures, iron the fatal rate of face total plate count and mould with most final temperature
The rise of degree and increase.When final temperature is 70 DEG C, moisture is 25% to iron face total plate count and mould fatal rate point
Wei 87.6% ± 5.4% and 90.9% ± 7.5%.When final temperature reaches 90 DEG C, iron face total plate count and mould is lethal
Rate is respectively 97.5% ± 0.8% and 99.1% ± 0.5%.When final temperature is 80 and 90 DEG C, 3 different moistures
Between be not present significant difference, total plate count and mould fatal rate just respectively reached at 80 DEG C 91.1% and 94.3% with
On, the bacteria containing amount of sample is much smaller than total plate count (1.0 × 10 as defined in provincial standard4CFU/g, DB13/T 1060-2009) and
Mould bacterial content (50CFU/g, DB13/T 1060-2009).
Embodiment 4, radio frequency sterilize the influence for ironing face quality
Under not plates of similar polarity spacing, sterilization processing is carried out to the face sample that irons of different moisture content, to being cooled down after sterilization processing
The face of ironing of rehydration carries out shearing experiment and stretching experiment, maximum shear stress and breaks force parameter and noodles sensory evaluation chewiness
Sense, hardness, elasticity are in highly significant positive correlation.Table 2 is different radio frequency sterilization conditions to ironing the maximum shear stress in face and breaking
Power, as a result show, under pole plate spacing 115mm, the face of ironing of different moisture content is heated to 80 DEG C and sterilized using radio frequency, is killed
After the completion of bacterium, measure irons the maximum shear stress and pull-off force in face, compared to untreated sample, its maximum shear stress and pull-off force
Significant changes do not occur；Under pole plate spacing 100mm, the face of ironing of water content 29% is heated to 90 DEG C and killed using radio frequency
Bacterium, after the completion of sterilization, measure irons the maximum shear stress and pull-off force in face, compared to untreated sample, its maximum shear stress and
Significant changes do not occur for pull-off force.
The change of face texture is ironed after the radio frequency sterilization processing of table 2
Claims (7)
1. a kind of packaging using radio frequency sterilization irons face processing method, it is characterised in that face is ironed as raw material using commercially available, packaged,
It is product after sterilization and cooling treatment, concretely comprises the following steps：
(1) raw material：Machine the time irons face no more than the commercially available of 24h；
(2) load：The face of ironing is packed into the plastic casing that material is PP；
(3) pack：One waterproof vent valve is installed at sealed membrane center, hot-seal is carried out to plastic casing with packing machine after overlay film
Processing；
(4) sterilize：Product after packaging is used into 6kW, 27.12MHz RF heating system carries out heating sterilization processing；
(5) cool down：Will it is treated after it is box-packed iron face and place cooled down at room temperature, that is, obtain ironing face product.
2. production method according to claim 1, it is characterised in that in the step (1), the moisture for ironing face need to be small
In 30%.
3. production method according to claim 1, it is characterised in that in the step (2), the height of plastic casing is
42mm, top internal diameter a diameter of 120mm, base diameter 100mm.
4. production method according to claim 1, it is characterised in that in the step (2), packaging irons face in plastic casing
Filling height is 34mm, loadings 95-105g.
5. production method according to claim 1, it is characterised in that in the step (3), installed one on sealed membrane additional
The diameter of waterproof vent valve, wherein waterproof ventilated membrane need to be more than 12mm, and heat-sealing sealing temperature is 180 DEG C, sealing time 20-
30s。
6. production method according to claim 1, it is characterised in that in the step (4), the condition of radio frequency sterilization processing
It is 95-150mm for pole plate spacing, temperature of charge is 80-90 DEG C.
7. production method according to claim 6, it is characterised in that the condition of radio frequency sterilization processing is pole plate spacing
115mm, 80 DEG C of temperature of charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351454.2A CN107397112A (en) | 2016-05-18 | 2016-05-18 | A kind of packaging using radio frequency sterilization irons method for processing surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351454.2A CN107397112A (en) | 2016-05-18 | 2016-05-18 | A kind of packaging using radio frequency sterilization irons method for processing surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107397112A true CN107397112A (en) | 2017-11-28 |
Family
ID=60388976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610351454.2A Pending CN107397112A (en) | 2016-05-18 | 2016-05-18 | A kind of packaging using radio frequency sterilization irons method for processing surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107397112A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114304489A (en) * | 2021-12-14 | 2022-04-12 | 西北农林科技大学 | Method for drying fine dried noodles by low-frequency electromagnetic field |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114304489A (en) * | 2021-12-14 | 2022-04-12 | 西北农林科技大学 | Method for drying fine dried noodles by low-frequency electromagnetic field |
| CN114304489B (en) * | 2021-12-14 | 2023-08-01 | 西北农林科技大学 | Method for drying fine dried noodles by low-frequency electromagnetic field |
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