CN101524178A - Thermal sterilization method of presetting sterilization effect as control objective - Google Patents
Thermal sterilization method of presetting sterilization effect as control objective Download PDFInfo
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- CN101524178A CN101524178A CN200910003872A CN200910003872A CN101524178A CN 101524178 A CN101524178 A CN 101524178A CN 200910003872 A CN200910003872 A CN 200910003872A CN 200910003872 A CN200910003872 A CN 200910003872A CN 101524178 A CN101524178 A CN 101524178A
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- sterilization
- value
- temperature
- control
- bactericidal effect
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention discloses a thermal sterilization method of presetting sterilization effect (F value) as a control objective. The method comprises the following steps: firstly, selecting object bacteria of an object to be sterilized and confirming key sterilization objects; and then, in a computer control system of sterilization equipment with an F value test device and a control conduction device internally arranged, directly inputting the temperature and the sterilization effect (F value) of the object to be sterilized into a computer, confirming the F value and the sterilization temperature and enabling the computer control system to automatically calculate sterilization time, monitor, calculate the sterilization effect (F value) in real time and terminate the sterilization process when the F value reaches a preset value. The invention overcomes the defect that traditional thermal sterilization equipment can not preliminarily confirm the F value, adopts a dynamic F value measurement and display technology to control the F value in real time in the sterilization process, can ensure the sanitation and the safety of food while ensuring the sterilization effect, keeps the mouthfeel and the quality of the object to be sterilized to the maximum extent and saves energy sources.
Description
Technical field
The present invention relates to canned food heat sterilization technology.It exactly is a kind of method that sets in advance bactericidal effect for the heat sterilization of control target.
Background technology
The F value is the expression bactericidal effect in the canned food heat sterilization.Be illustrated in the microorganism of killing some under a certain sterilization conditions or gemma bacterium required heat time heating time, it is used as differentiates the rational standard value of a certain sterilization conditions, also claims the F value.In the work of traditional canned food heat sterilization, because sterilization conditions can change,, handle article according to set bactericidal formula as variations such as the initial temperature of sterilization object, vapor (steam) temperatures, all can influence last bactericidal effect (F value).So, for guaranteeing bactericidal effect, in actual sterilization process, can prolong sterilizing time or improve sterilization temperature, promptly adopt the mode of excessive sterilization to guarantee food security.But excessively sterilization promptly causes energy waste to destroy food mouthfeel, quality again, and can't regulate bactericidal formula according to the change of sterilization conditions thereupon, is difficult to reach the bactericidal effect of anticipation.
Goal of the invention
The present invention is directed to the drawback that traditional canned food heat sterilization equipment exists, a kind of method that sets in advance bactericidal effect (F value) for the heat sterilization of control target is provided.Its method is simple, and is easy and simple to handle, effective energy savings, and food security is protected.
For realizing above-mentioned technical purpose, the present invention has taked following technical scheme: a kind of method that sets in advance bactericidal effect for the heat sterilization of control target, the at first selected object bacterium that needs the sterilization article, determine the key object of sterilization, then, in the disinfection equipment computerized control system of built-in F value testing arrangement and control conduction device, need directly be imported computer by the temperature of sterilization article and bactericidal effect (F value), determine F value and sterilization temperature earlier, automatically calculate sterilizing time by computerized control system, monitoring is in real time also calculated bactericidal effect (F value), and when the F value reached predetermined value, control system stopped sterilization process automatically.
Owing to taked technique scheme, the present invention overcomes traditional thermal sterilization equipment F value can not predetermined drawback, and adopt dynamic F pH-value determination pH Display Technique, make the F value realize the real-time control of sterilization process, can be under the prerequisite that guarantees bactericidal effect, guarantee food sanitation safe, kept mouthfeel, the quality of heating target to greatest extent, saved the energy.
The specific embodiment
Get the vacuum-packed Beijing roast duck high temperature sterilization of 500kg.High-temperature sterilization pot one cover that has automatic calculating sterilization F value function.There is the temperature sensing probe of an activity to be connected with the control computer of retort in the pot with a temperature sensing probe that is fixed in the pot, the former measures the food central temperature in order to calculate sterilization F value, the latter measures heat transfer medium temperature in the pot, control medium temperature during in order to sterilization.
The first step: the microbe species in the sampling test sample, determine the sterilization object bacterium.
Second step: the sterilization F value of determining safety according to the object bacterium.
The 3rd step: vacuum-packed Beijing roast duck is packed in the retort, and the temperature sensing probe that will measure the food central temperature inserts in the packing, and the temperature sense position of probe should be in the position of the geometric center point of food, and will seal between the lead of probe and packing material.At any time measure herein temperature computation F value according to the computer on the retort.
The 4th step: set sterilization temperature (sterilization temperature is meant the temperature of heat transfer medium in the pot, as steam or water) and F value in the control computer on retort.
The 5th step: start retort, in the steam or hot water injection pot with the outside, food is heated up,
The 6th step: after the temperature that the temperature sensing probe in being fixed on pot records rises to the temperature of setting, inlet by control retort outside heat keeps constant design temperature automatically, the temperature that records when the temp probe that is inserted in the food center, real-time calculating through computer, after the F value reaches predetermined value, computer sends instruction to the control section of retort, stops sterilization process.
Claims (2)
1, a kind of to set in advance the method that bactericidal effect is the heat sterilization of control target, it is characterized in that: at first measure the object bacterium that needs the sterilization article, determine the key object of sterilization; In the disinfection equipment computerized control system of built-in F value testing arrangement and control conduction device, input is calculated sterilizing time automatically by computerized control system, and is monitored and calculate bactericidal effect (F value) in real time by the temperature of sterilization article and bactericidal effect (F value).
2, according to the described method of heat sterilization that sets in advance bactericidal effect for the control target of claim 1, it is characterized in that: F value testing arrangement and control conduction device and be arranged in the airtight disinfection equipment container, and be connected with external computer control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910003872A CN101524178A (en) | 2009-02-05 | 2009-02-05 | Thermal sterilization method of presetting sterilization effect as control objective |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910003872A CN101524178A (en) | 2009-02-05 | 2009-02-05 | Thermal sterilization method of presetting sterilization effect as control objective |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101524178A true CN101524178A (en) | 2009-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910003872A Pending CN101524178A (en) | 2009-02-05 | 2009-02-05 | Thermal sterilization method of presetting sterilization effect as control objective |
Country Status (1)
| Country | Link |
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| CN (1) | CN101524178A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056287A (en) * | 2013-03-19 | 2014-09-24 | 上海超玛机电科技有限公司 | Sterilization method for tunnel drying oven |
| CN106777765A (en) * | 2016-12-31 | 2017-05-31 | 浙江大学 | Easily thermal sterilization runout compensation method |
| CN110531799A (en) * | 2019-08-13 | 2019-12-03 | 浙江大学 | A kind of thermal sterilization automatic deviation correction smart box |
-
2009
- 2009-02-05 CN CN200910003872A patent/CN101524178A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056287A (en) * | 2013-03-19 | 2014-09-24 | 上海超玛机电科技有限公司 | Sterilization method for tunnel drying oven |
| CN106777765A (en) * | 2016-12-31 | 2017-05-31 | 浙江大学 | Easily thermal sterilization runout compensation method |
| CN106777765B (en) * | 2016-12-31 | 2019-07-12 | 浙江大学 | Convenient and fast thermal sterilization runout compensation method |
| CN110531799A (en) * | 2019-08-13 | 2019-12-03 | 浙江大学 | A kind of thermal sterilization automatic deviation correction smart box |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090909 |