CN106124714A - Sulfur dioxide on-line monitoring method during wine production and device - Google Patents
Sulfur dioxide on-line monitoring method during wine production and device Download PDFInfo
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- CN106124714A CN106124714A CN201610429892.6A CN201610429892A CN106124714A CN 106124714 A CN106124714 A CN 106124714A CN 201610429892 A CN201610429892 A CN 201610429892A CN 106124714 A CN106124714 A CN 106124714A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
- G01N33/14—Beverages
- G01N33/146—Beverages containing alcohol
Abstract
nullThe invention discloses a kind of sulfur dioxide on-line monitoring method during wine production and device，Relate to Food Monitoring technical field，Present invention gas-liquid phase equilibrium during wine production and dissociation equilibrium principle are set about，Take into full account the many factors of impact balance，After data during obtaining wine production，Vapor liquid equilibrium coefficient and the ionic equilibrium coefficient of current wine equilibrium system is calculated by linear regression function，Wine Middle molecule state sulfur dioxide concentration is calculated according to liquid phase molecular state sulfur dioxide equilibrium relation，And then calculate free state sulfur dioxide concentration according to liquid Middle molecule state sulfur dioxide with free state sulfur dioxide dissociation equilibrium relation，It is capable of quickly、Lossless、Free sulfur dioxide concentration in Intelligent Measurement wine，There is good convenience and real-time，Contribute to realizing the most efficiently、Wine quality monitoring accurately and the quality control in brewing process and raw material saving.
Description
Technical field
The present invention relates to Food Monitoring technical field, particularly to a kind of sulfur dioxide during wine production
On-line monitoring method and device.
Background technology
In brewing grape wine technique, sulfur dioxide is the most general additive, has and prevents wine oxidation
With corrupt effect.But the residual quantity of sulfur dioxide must strictly control, when addition is few, easily there is brown stain and generation in wine
Bacterial disease；When using excess, wine can be made to produce pungent thiozon taste, not only affect the quality of wine, to human body
Health also can produce harmful effect.
China is regulation wine in " national food safety standard food additive uses standard " (GB 2760-2014)
Middle sulfur dioxide residual quantity is less than 0.25g/L, in " wine, fruit wine universaling analysis method " (GB/T 15038-2006) two
The assay method of sulfur oxide is oxidizing process and direct iodimetry.Other conventional chemical detection method also have the way of distillation and hydrochloric acid secondary
Rosaniline method etc..Chemical detection method has good accuracy, needs special glass apparatus, but the process of analysis is complicated
And time overhead is big, it is unsuitable for real time on-line monitoring.
Summary of the invention
In view of the above problems, it is proposed that the present invention in case provide one overcome the problems referred to above or at least in part solve on
State problem a kind of sulfur dioxide on-line monitoring method during wine production and device.
According to one aspect of the present invention, it is provided that a kind of sulfur dioxide on-line monitoring during wine production
Method, described method includes:
S1: obtain the current gas phase sulfur dioxide concentration during wine production, the current pH value of wine and current
Concentration of alcohol；
S2: according to described current concentration of alcohol, determines current vapor liquid equilibrium coefficient by linear regression function, described linearly
Regression function is the corresponding relation between concentration of alcohol and vapor liquid equilibrium coefficient；
S3: according to described current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, calculate the current molecular in wine
State sulfur dioxide concentration；
S4: according to described current pH value and current concentration of alcohol, determine that current ion is put down by Multiple Linear Regression Function
Weighing apparatus coefficient, described Multiple Linear Regression Function is the corresponding relation between pH value, concentration of alcohol and ionic equilibrium coefficient；
S5: according to described current pH value, current molecular state sulfur dioxide concentration, and currently ionic equilibrium coefficient determines currently
Free state sulfur dioxide concentration.
Alternatively, in step S2, described linear regression function is
K=α0+α1×E+ε
Wherein, K is vapor liquid equilibrium coefficient, α0For constant, α1For correlation coefficient, ε is stochastic error, and E is concentration of alcohol.
Alternatively, in step S3, according to described current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, by following formula meter
Calculate the current molecular state sulfur dioxide concentration in wine,
Wherein, K is vapor liquid equilibrium coefficient, SMFor molecular state sulfur dioxide concentration, M is sulfur dioxide molecule quality, and G is gas
Phase sulfur dioxide concentration.
Alternatively, in step S4, described Multiple Linear Regression Function is
P=β0+β1×E+β2×PH+ε
Wherein, P is ionic equilibrium coefficient, β0For constant, β1,β2For correlation coefficient, ε is stochastic error, and E is that ethanol is dense
Degree, PH is pH value.
Alternatively, in step S5, according to described current pH value, current molecular state sulfur dioxide concentration, and current ion is put down
Weighing apparatus coefficient determines current free state sulfur dioxide concentration by following formula,
SF=SM(1+10(PH-P))
Wherein, SMFor molecular state sulfur dioxide concentration, PH is pH value, and P is ionic equilibrium coefficient, SFFor free state titanium dioxide
Sulphur concentration.
Alternatively, described method also includes:
Relative error between the free state sulfur dioxide concentration and the measured value that calculate in obtaining preset time period, described
Relative error, more than when presetting error, by arranging different pH value and the gradient test of concentration of alcohol, uses chemical analysis method
Detection wine liquid sample corrects described linear regression function and/or Multiple Linear Regression Function.
Alternatively, described according to described current concentration of alcohol, determine current vapor liquid equilibrium coefficient by linear regression function
Before, described method also includes:
By arranging the gradient experiment of different ethanol concentration, chemical analysis detection wine liquid sample is used to set up institute
State linear regression function.
Alternatively, described according to described current pH value and current concentration of alcohol, determined by Multiple Linear Regression Function and work as
Before front ionic equilibrium coefficient, described method also includes:
By arranging different pH value and the gradient experiment of concentration of alcohol, use chemical analysis detection wine liquid sample
Set up described Multiple Linear Regression Function.
Alternatively, described method also includes:
Judge that described current free state sulfur dioxide concentration, whether in the range of preset concentration, carries if it is not, then carry out early warning
Wake up.
According to another aspect of the present invention, it is provided that a kind of sulfur dioxide during wine production is supervised online
Surveying device, described device includes:
Parameter acquiring unit, for obtaining current gas phase sulfur dioxide concentration during wine production, wine
Current pH value and current concentration of alcohol；
First factor determination unit, for according to described current concentration of alcohol, determines current gas by linear regression function
Liquid coefficient of balance, described linear regression function is the corresponding relation between concentration of alcohol and vapor liquid equilibrium coefficient；
Molecular concentration computing unit, for according to described current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, calculates
Current molecular state sulfur dioxide concentration in wine；
Second factor determination unit, for according to described current pH value and current concentration of alcohol, passes through multiple linear regression
Function determines current ionic equilibrium coefficient, described Multiple Linear Regression Function be pH value, concentration of alcohol and ionic equilibrium coefficient it
Between corresponding relation；
Ion concentration calculates unit, for according to described current pH value, current molecular state sulfur dioxide concentration, and currently from
Quantum balancing coefficient determines current free state sulfur dioxide concentration.
Present invention gas-liquid phase equilibrium during wine production and dissociation equilibrium principle are set about, and take into full account that impact is flat
The many factors of weighing apparatus, after the data during obtaining wine production, calculates current wine by linear regression function
The vapor liquid equilibrium coefficient of equilibrium system and ionic equilibrium coefficient, calculate Fructus Vitis viniferae according to liquid phase molecular state sulfur dioxide equilibrium relation
Wine Middle molecule state sulfur dioxide concentration, and then close with free state sulfur dioxide dissociation equilibrium according to liquid Middle molecule state sulfur dioxide
System calculates free state sulfur dioxide concentration, it is possible to realize free sulfur dioxide concentration in quick, lossless, Intelligent Measurement wine,
There is good convenience and real-time, contribute to realizing directly the most efficiently, wine quality monitoring accurately and brewing process
In quality control and raw material saving.
Accompanying drawing explanation
Fig. 1 is the sulfur dioxide on-line monitoring method during wine production of one embodiment of the present invention
Flow chart；
Fig. 2 is the sulfur dioxide on-Line Monitor Device during wine production of one embodiment of the present invention
Structured flowchart.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.Hereinafter implement
Example is used for illustrating the present invention, but is not limited to the scope of the present invention.
Fig. 1 is the sulfur dioxide on-line monitoring method during wine production of one embodiment of the present invention
Flow chart；With reference to Fig. 1, described method includes:
S1: obtain the current gas phase sulfur dioxide concentration during wine production, the current pH value of wine and current
Concentration of alcohol.
It should be noted that gas sensor can be used to obtain current gas phase sulfur dioxide concentration, passed by pH value simultaneously
Sensor, ethanol sensor are respectively adopted the pH value of wine liquid, concentration of alcohol.
For ease of realizing remotely monitoring, in present embodiment, described current gas phase sulfur dioxide concentration, wine current
PH value and current concentration of alcohol can be obtained by wireless sensor network.
S2: according to described current concentration of alcohol, determines current vapor liquid equilibrium coefficient by linear regression function, described linearly
Regression function is the corresponding relation between concentration of alcohol and vapor liquid equilibrium coefficient.
In present embodiment, described linear regression function can be
K=α0+α1×E+ε
Wherein, K is vapor liquid equilibrium coefficient, α0For constant, α1For correlation coefficient, ε is stochastic error, and ε～N (0, ε2),
E is concentration of alcohol.
It will be appreciated that before step S2, chemical analysis can be used by arranging the gradient experiment of different ethanol concentration
Method detection wine liquid sample sets up described linear regression function.
S3: according to described current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, calculate the current molecular in wine
State sulfur dioxide concentration.
In present embodiment, can be calculated by following formula according to described current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance
Current molecular state sulfur dioxide concentration in wine,
Wherein, K is vapor liquid equilibrium coefficient, SMFor molecular state sulfur dioxide concentration, M is sulfur dioxide molecule quality, and G is gas
Phase sulfur dioxide concentration.
S4: according to described current pH value and current concentration of alcohol, determine that current ion is put down by Multiple Linear Regression Function
Weighing apparatus coefficient, described Multiple Linear Regression Function is the corresponding relation between pH value, concentration of alcohol and ionic equilibrium coefficient.
In present embodiment, described Multiple Linear Regression Function can be
P=β0+β1×E+β2×PH+ε
Wherein, P is ionic equilibrium coefficient, β0For constant, β1,β2For correlation coefficient, ε is stochastic error, and ε～N (0,
ε2), E is concentration of alcohol, and PH is pH value.
It will be appreciated that before step S 4, can be by arranging different pH value and the gradient experiment of concentration of alcohol, employingization
Learn analytic process detection wine liquid sample and set up described Multiple Linear Regression Function.
S5: according to described current pH value, current molecular state sulfur dioxide concentration, and currently ionic equilibrium coefficient determines currently
Free state sulfur dioxide concentration.
In present embodiment, can be according to described current pH value, current molecular state sulfur dioxide concentration and current ionic equilibrium
Coefficient determines current free state sulfur dioxide concentration by following formula,
SF=SM(1+10(PH-P))
Wherein, SMFor molecular state sulfur dioxide concentration, PH is pH value, and P is ionic equilibrium coefficient, SFFor free state titanium dioxide
Sulphur concentration.
S6: the relative error between the free state sulfur dioxide concentration and the measured value that calculate in obtaining preset time period,
Described relative error, more than when presetting error, by arranging different pH value and the gradient test of concentration of alcohol, uses chemical analysis
Method detection wine liquid sample corrects described linear regression function and/or Multiple Linear Regression Function；
It will be appreciated that for ensureing the accuracy rate that described linear regression function and/or Multiple Linear Regression Function calculate, this
In embodiment, the relative error between the free state sulfur dioxide concentration and the measured value that calculate in preset time period can be obtained,
In described relative error more than when presetting error, illustrate that the accuracy of the free state sulfur dioxide concentration of calculating is undesirable,
Chemical analysis method detection wine liquid sample correction can be used by arranging different pH value and the gradient test of concentration of alcohol
Described linear regression function and/or Multiple Linear Regression Function；
Certainly, when described relative error is not more than and presets error, the standard of the free state sulfur dioxide concentration calculated is described
Exactness meets the requirements, it is not necessary to correct described linear regression function and/or Multiple Linear Regression Function.
In implementing, relative error δ can be calculated by following formula
Wherein, n is the interior number of times calculating free state sulfur dioxide concentration of preset time period,For real by chemical analysis
Test the free state sulfur dioxide concentration that i & lt measures,The free state sulfur dioxide concentration calculated for i & lt.
S7: judge described current free state sulfur dioxide concentration whether in the range of preset concentration, if it is not, then carry out early warning
Remind.
During it will be appreciated that described current free state sulfur dioxide concentration is in the range of preset concentration, illustrate current free
State sulfur dioxide concentration is in normal level, it is not necessary to carry out early warning prompting.
If current free state sulfur dioxide concentration SFHigher limit (instant food upper safety limit higher than described preset concentration scope
Value)Then wine quality is dangerous, is harmful to health, needs to carry out early warning prompting；If current free state titanium dioxide
Sulphur concentration SFLess than the lower limit of described preset concentration scope (i.e. the corrupt lower limit of suppression)Then sulfur dioxide cannot be effective
Antioxidation and antibacterial, wine may be corrupt, needs to carry out early warning prompting.
Present embodiment gas-liquid phase equilibrium during wine production and dissociation equilibrium principle are set about, and take into full account shadow
Ring the many factors of balance, after the data during obtaining wine production, calculate current Portugal by linear regression function
The vapor liquid equilibrium coefficient of grape wine equilibrium system and ionic equilibrium coefficient, calculate according to liquid phase molecular state sulfur dioxide equilibrium relation
Wine Middle molecule state sulfur dioxide concentration, and then dissociate flat according to liquid Middle molecule state sulfur dioxide with free state sulfur dioxide
Weighing apparatus relation calculates free state sulfur dioxide concentration, it is possible to realize free sulur dioxide in quick, lossless, Intelligent Measurement wine dense
Degree, has good convenience and real-time, contribute to realizing directly the most efficiently, wine quality monitoring accurately with brewageed
Quality control in journey and raw material saving.
For method embodiment, in order to be briefly described, therefore it is all expressed as a series of combination of actions, but ability
Field technique personnel should know, embodiment of the present invention is not limited by described sequence of movement, because according to the present invention
Embodiment, some step can use other orders or carry out simultaneously.Secondly, those skilled in the art also should know,
Embodiment described in this description belongs to preferred implementation, involved action embodiment party the most of the present invention
Necessary to formula.
Fig. 2 is the sulfur dioxide on-Line Monitor Device during wine production of one embodiment of the present invention
Structured flowchart；With reference to Fig. 2, described device includes:
Parameter acquiring unit 201, the current gas phase sulfur dioxide concentration during obtaining wine production, wine
Current pH value and current concentration of alcohol；
First factor determination unit 202, for according to described current concentration of alcohol, is determined currently by linear regression function
Vapor liquid equilibrium coefficient, described linear regression function is the corresponding relation between concentration of alcohol and vapor liquid equilibrium coefficient；
Molecular concentration computing unit 203, for according to described current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, meter
Calculate the current molecular state sulfur dioxide concentration in wine；
Second factor determination unit 204, for according to described current pH value and current concentration of alcohol, is returned by multiple linear
Returning function to determine current ionic equilibrium coefficient, described Multiple Linear Regression Function is pH value, concentration of alcohol and ionic equilibrium coefficient
Between corresponding relation；
Ion concentration calculates unit 205, is used for according to described current pH value, current molecular state sulfur dioxide concentration, and works as
Front ionic equilibrium coefficient determines current free state sulfur dioxide concentration.
For device embodiments, due to itself and method embodiment basic simlarity, so describe is fairly simple,
Relevant part sees the part of method embodiment and illustrates.
It should be noted that, in all parts of assembly of the invention, the function to be realized according to it and to therein
Parts have carried out logical partitioning, but, the present invention is not only restricted to this, can as required all parts be repartitioned or
Person combines.
The all parts embodiment of the present invention can realize with hardware, or to transport on one or more processor
The software module of row realizes, or realizes with combinations thereof.In this device, PC is by realizing the Internet to equipment or device
Remotely control, control equipment or the step of each operation of device accurately.The present invention is also implemented as performing here
Part or all equipment of described method or device program (such as, computer program and computer program product
Product).It is achieved in that the program of the present invention can store on a computer-readable medium, and the file or document tool that program produces
Have and statistically can produce data report and cpk report etc., power amplifier can be carried out batch testing and add up.It should be noted
The present invention will be described rather than limits the invention to state embodiment, and those skilled in the art are without departing from institute
Replacement embodiment can be designed in the case of the scope of attached claim.In the claims, should not will be located between bracket
Any reference marks be configured to limitations on claims.Word " comprises " and does not excludes the presence of the unit not arranged in the claims
Part or step.Word "a" or "an" before being positioned at element does not excludes the presence of multiple such element.The present invention can borrow
Help include the hardware of some different elements and realize by means of properly programmed computer.If listing equipment for drying
Unit claim in, several in these devices can be specifically to be embodied by same hardware branch.Word first,
Second and third use do not indicate that any order.Can be title by these word explanations.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, common about technical field
Technical staff, without departing from the spirit and scope of the present invention, it is also possible to make a variety of changes and modification, therefore own
The technical scheme of equivalent falls within scope of the invention, and the scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. the sulfur dioxide on-line monitoring method during wine production, it is characterised in that described method includes:
S1: obtain the current gas phase sulfur dioxide concentration during wine production, the current pH value of wine and current ethanol
Concentration；
S2: according to described current concentration of alcohol, determine current vapor liquid equilibrium coefficient, described linear regression by linear regression function
Function is the corresponding relation between concentration of alcohol and vapor liquid equilibrium coefficient；
S3: according to described current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, calculate the current molecular state two in wine
Sulfur oxide concentration；
S4: according to described current pH value and current concentration of alcohol, determine current ionic equilibrium system by Multiple Linear Regression Function
Number, described Multiple Linear Regression Function is the corresponding relation between pH value, concentration of alcohol and ionic equilibrium coefficient；
S5: according to described current pH value, current molecular state sulfur dioxide concentration, and currently ionic equilibrium coefficient determines current free
State sulfur dioxide concentration.
2. the method for claim 1, it is characterised in that in step S2, described linear regression function is
K=α0+α1×E+ε
Wherein, K is vapor liquid equilibrium coefficient, α0For constant, α1For correlation coefficient, ε is stochastic error, and E is concentration of alcohol.
3. the method for claim 1, it is characterised in that in step S3, according to described current gas phase sulfur dioxide concentration
With gas-liquid coefficient of balance, calculate the current molecular state sulfur dioxide concentration in wine by following formula,
Wherein, K is vapor liquid equilibrium coefficient, SMFor molecular state sulfur dioxide concentration, M is sulfur dioxide molecule quality, and G is gas phase two
Sulfur oxide concentration.
4. the method for claim 1, it is characterised in that in step S4, described Multiple Linear Regression Function is
P=β0+β1×E+β2×PH+ε
Wherein, P is ionic equilibrium coefficient, β0For constant, β1,β2For correlation coefficient, ε is stochastic error, and E is concentration of alcohol, PH
For pH value.
5. the method for claim 1, it is characterised in that in step S5, according to described current pH value, current molecular state two
Sulfur oxide concentration, and currently ionic equilibrium coefficient determines current free state sulfur dioxide concentration by following formula,
SF=SM(1+10(PH-P))
Wherein, SMFor molecular state sulfur dioxide concentration, PH is pH value, and P is ionic equilibrium coefficient, SFDense for free state sulfur dioxide
Degree.
6. the method as according to any one of Claims 1 to 5, it is characterised in that described method also includes:
Obtain the relative error between free state sulfur dioxide concentration and the measured value calculated in preset time period, described relatively
Error, more than when presetting error, by arranging different pH value and the gradient test of concentration of alcohol, uses chemical analysis method detection
Wine liquid sample corrects described linear regression function and/or Multiple Linear Regression Function.
7. the method as according to any one of Claims 1 to 5, it is characterised in that described according to described current concentration of alcohol, logical
Crossing before linear regression function determines current vapor liquid equilibrium coefficient, described method also includes:
By arranging the gradient experiment of different ethanol concentration, chemical analysis detection wine liquid sample is used to set up described line
Property regression function.
8. the method as according to any one of Claims 1 to 5, it is characterised in that described according to described current pH value with current
Concentration of alcohol, before determining current ionic equilibrium coefficient by Multiple Linear Regression Function, described method also includes:
By arranging different pH value and the gradient experiment of concentration of alcohol, chemical analysis detection wine liquid sample is used to set up
Described Multiple Linear Regression Function.
9. the method as according to any one of Claims 1 to 5, it is characterised in that described method also includes:
Judge described current free state sulfur dioxide concentration whether in the range of preset concentration, if it is not, then carry out early warning prompting.
10. the sulfur dioxide on-Line Monitor Device during wine production, it is characterised in that described device bag
Include:
Parameter acquiring unit, for obtain current gas phase sulfur dioxide concentration during wine production, wine current
PH value and current concentration of alcohol；
By linear regression function, first factor determination unit, for according to described current concentration of alcohol, determining that current gas-liquid is put down
Weighing apparatus coefficient, described linear regression function is the corresponding relation between concentration of alcohol and vapor liquid equilibrium coefficient；
Molecular concentration computing unit, for according to described current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, calculates Fructus Vitis viniferae
Current molecular state sulfur dioxide concentration in wine；
Second factor determination unit, for according to described current pH value and current concentration of alcohol, passes through Multiple Linear Regression Function
Determining current ionic equilibrium coefficient, described Multiple Linear Regression Function is between pH value, concentration of alcohol and ionic equilibrium coefficient
Corresponding relation；
Ion concentration calculates unit, is used for according to described current pH value, current molecular state sulfur dioxide concentration, and current ion is put down
Weighing apparatus coefficient determines current free state sulfur dioxide concentration.
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