CN110082399A - A kind of fast non-destructive detection method of fresh tobacco leaves total reducing sugar - Google Patents
A kind of fast non-destructive detection method of fresh tobacco leaves total reducing sugar Download PDFInfo
- Publication number
- CN110082399A CN110082399A CN201910340816.1A CN201910340816A CN110082399A CN 110082399 A CN110082399 A CN 110082399A CN 201910340816 A CN201910340816 A CN 201910340816A CN 110082399 A CN110082399 A CN 110082399A
- Authority
- CN
- China
- Prior art keywords
- tobacco leaves
- fresh tobacco
- unit length
- per unit
- reducing sugar
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The present invention relates to a kind of fast non-destructive detection methods of fresh tobacco leaves total reducing sugar, belong to technical field of analysis and detection.When detection, fresh tobacco leaves blade tip is chosen respectively, in leaf and three positions of phyllopodium are detected, the capacitor between upper surface, lower surface and upper and lower surface is detected respectively in each position, corresponding capacitance per unit length is calculated later, then it between the mean value of capacitance per unit length the upper surface capacitance per unit length, lower surface capacitance per unit length, blade upper and lower surface that are calculated, is denoted asC On 、C Under 、C Between ；It willC On 、C Under 、C Between It substitutes into model to be calculated, the mass percentage of fresh tobacco leaves total reducing sugar can be obtained；The method of the present invention does not damage tobacco plant and tobacco leaf with the judgement for fresh tobacco leaves quality and maturity, entire detection process, and testing result is accurate, application easy to spread.
Description
Technical field
The invention belongs to technical field of analysis and detection, and in particular to a kind of Fast nondestructive evaluation side of fresh tobacco leaves total reducing sugar
Method.
Background technique
Carbohydrate is the maximum a kind of compound of content in tobacco leaf, accounts for the 25%~50% of dry substance mixture, is to influence tobacco leaf
One of important substance of quality.In the appropriate range, the sugared content of flue-cured tobacco and judging parameter correlation, it is too low or excessively high
Can adverse effect be generated to flue gas.When tobacco leaf suction fuel, their Pintsch process make flue gas in acidity at rudimentary aldehyde, ketone
(pH5.3~6.5) can improve the fragrance of flue gas and jealous, and can be reduced the irritation of flue gas, therefore be to determine quality of tobacco
Important chemical component.Flue-cured tobacco is too low containing sugar, and flue gas can be caused to generate taste of choking, irritation enhancing；Sugar content is excessively high, becomes flue gas
It is flat, acid too strong, while also increase the tar yield of flue gas, influence the safety of cigarette.Total sugar content pair in tobacco
Quality of tobacco influence is huge, is the big event in tobacco chemistry conventional analysis.
Currently, having for the detection method of sugared content in flue-cured tobacco: copper reduction-titration of Water-soluble Total Sugar and reduced sugar,
Several analysis methods such as colorimetric method, near infrared spectroscopy, continuous flow method.And for the quick of living body tobacco plant fresh tobacco leaves
Lossless detection method, almost without report.Therefore how overcome the deficiencies in the prior art be present analysis detection technique field urgently
Problem to be solved.
Summary of the invention
It is an object of the present invention to solve the deficiency of the existing technology and provide a kind of inspections of the quick nondestructive of fresh tobacco leaves total reducing sugar
Survey method, this method is with the judgement for fresh tobacco leaves quality and maturity, and entire detection process is to tobacco plant and tobacco leaf leaf
Piece does not damage, and testing result is accurate, application easy to spread.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of fast non-destructive detection method of fresh tobacco leaves total reducing sugar, steps are as follows:
The capacitor includes fresh tobacco leaves upper surface capacitance per unit length COn, fresh tobacco leaves lower surface capacitance per unit length
CUnderAnd capacitance per unit length C between fresh tobacco leaves blade upper and lower surfaceBetween；
When detection, choose fresh tobacco leaves blade tip respectively, in leaf and three positions of phyllopodium are detected, each position is examined respectively
It the capacitor between upper surface, lower surface and upper and lower surface is surveyed, calculates corresponding capacitance per unit length later, then to being calculated
The mean value of capacitance per unit length, is denoted as between upper surface capacitance per unit length, lower surface capacitance per unit length, blade upper and lower surface
COn、CUnder、CBetween；
By COn、CUnder、CBetweenSubstitution such as drag is calculated, and the mass percentage of fresh tobacco leaves total reducing sugar can be obtained；
The model are as follows: ATotal reducing sugar contains rate=1.09 × COn+0.34×CUnder+2.23×CBetween, wherein ATotal reducing sugar contains rate% is that fresh tobacco leaves are total
The mass percentage of sugar.
It is further preferred that capacitance per unit length value measures the ratio of capacitor and its distance, unit between two test points
For pico farad/centimetre.
It is further preferred that test point avoids leaf vein, and the line between two test points does not span across leaf vein.
It is further preferred that each location detection number is no less than three times when detection.
Compared with prior art, the present invention has the advantages that:
(1) operation of the present invention is simple, required time is short, it is only necessary to which a few minutes can be obtained by the total sugar content of fresh tobacco leaves
Numerical value can be used for the judgement of fresh tobacco leaves quality and maturity.
(2) present invention is non-destructive testing, and entire detection process does not damage tobacco plant and tobacco leaf, can be direct
Carry out In vivo detection.
(3) testing result of the present invention is accurate, no longer needs to by subsequent complicated analysis, the total reducing sugar that fresh tobacco leaves can be obtained contains
Measure exact value.
(4) entire detection process is not necessarily to pre-treatment, and time of measuring is foreshortened to by the 40min of standard method flow analysis
5min, detection efficiency greatly improve.Measurement result matches with standard method, and error is less than 15%.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail.
It will be understood to those of skill in the art that the following example is merely to illustrate the present invention, and it should not be regarded as limiting this hair
Bright range.In the examples where no specific technique or condition is specified, described technology or conditions according to the literature in the art
Or it is carried out according to product description.Production firm person is not specified in material therefor or equipment, is that can be obtained by purchase
Conventional products.
Embodiment 1
A kind of fast non-destructive detection method of fresh tobacco leaves total reducing sugar, steps are as follows:
The capacitor includes fresh tobacco leaves upper surface capacitance per unit length COn, fresh tobacco leaves lower surface capacitance per unit length
CUnderAnd capacitance per unit length C between fresh tobacco leaves blade upper and lower surfaceBetween；
When detection, choose fresh tobacco leaves blade tip respectively, in leaf and three positions of phyllopodium are detected, each position is examined respectively
It the capacitor between upper surface, lower surface and upper and lower surface is surveyed, calculates corresponding capacitance per unit length later, then to being calculated
The mean value of capacitance per unit length, is denoted as between upper surface capacitance per unit length, lower surface capacitance per unit length, blade upper and lower surface
COn、CUnder、CBetween；
By COn、CUnder、CBetweenSubstitution such as drag is calculated, and the mass percentage of fresh tobacco leaves total reducing sugar can be obtained；
The model are as follows: ATotal reducing sugar contains rate=1.09 × COn+0.34×CUnder+2.23×CBetween, wherein ATotal reducing sugar contains rate% is that fresh tobacco leaves are total
The mass percentage of sugar.
Embodiment 2
A kind of fast non-destructive detection method of fresh tobacco leaves total reducing sugar, steps are as follows:
The capacitor includes fresh tobacco leaves upper surface capacitance per unit length COn, fresh tobacco leaves lower surface capacitance per unit length
CUnderAnd capacitance per unit length C between fresh tobacco leaves blade upper and lower surfaceBetween；
When detection, choose fresh tobacco leaves blade tip respectively, in leaf and three positions of phyllopodium are detected, each position is examined respectively
It the capacitor between upper surface, lower surface and upper and lower surface is surveyed, calculates corresponding capacitance per unit length later, then to being calculated
The mean value of capacitance per unit length, is denoted as between upper surface capacitance per unit length, lower surface capacitance per unit length, blade upper and lower surface
COn、CUnder、CBetween；
By COn、CUnder、CBetweenSubstitution such as drag is calculated, and the mass percentage of fresh tobacco leaves total reducing sugar can be obtained；
The model are as follows: ATotal reducing sugar contains rate=1.09 × COn+0.34×CUnder+2.23×CBetween, wherein ATotal reducing sugar contains rate% is that fresh tobacco leaves are total
The mass percentage of sugar.
Capacitance per unit length value measures the ratio of capacitor and its distance between two test points, unit be pico farad/centimetre.
Test point avoids leaf vein, and the line between two test points does not span across leaf vein.
When detection, each location detection number is no less than three times.
The construction method of model of the present invention are as follows:
1. data acquire
Different cultivars, planting conditions and the living body tobacco plant in growth period are chosen, it is miscellaneous to remove silt, the moisture on surface etc.
Matter.Using digital electric bridge high-accuracy capacitor table, frequency 500Hz is measured, tobacco leaf position is measured, is read after stablizing 10s
Number, each position pendulous frequency are no less than 3 times, take its average value.Ambient humidity is not more than 40% when detection, temperature range 18-
30℃。
2. standard method measures
For above-mentioned tobacco leaf, professional standard " the measurement continuous flow of YC/T 159-2002 tobacco and tobacco product water-soluble sugar
Dynamic method " measure its total sugar content.
3. model foundation
To in 1,2 the data obtaineds abnormal data and outlier identified and rejected, 268 sample numbers of final choice
According to importing SPSS software is established electrical characteristics and quickly detected linear regression model (LRM) using least square method multiple linear regression:
ATotal reducing sugar contains rate=1.09 × COn+0.34×CUnder+2.23×CBetween, coefficient of determination r2=0.887.
Application example
Further illustrate the desired effect that the present invention is reached, inventor has randomly selected different on 20 plants of tobacco plants
Position tobacco leaf, kind and concrete position are shown in Table 1, detect and calculate, and obtain fresh tobacco leaves upper surface capacitance per unit length
(COn), lower surface capacitance per unit length (CUnder) and blade upper and lower surface between capacitance per unit length (CBetween), capacitance per unit length list
Position using pico farad/centimetre, using model ATotal reducing sugar contains rate=1.09 × COn+0.34×CUnder+2.23×CBetween, coefficient of determination r2=
0.887, calculate the value of its fresh tobacco leaves total reducing sugar mass percentage, while after being weighed it is dry again using flow analysis and
Near infrared spectroscopy is detected respectively, then corresponding fresh tobacco leaves total sugar content value is obtained by calculation, and with flowing point
Measured value of the data as fresh tobacco leaves total reducing sugar is analysed, institute's measured data the results are shown in Table 2.
Table 1
2 20 parts of fresh tobacco leaves sample total reducing sugar predicted values of table are compared with measured value
Show that gained fresh tobacco leaves total reducing sugar predicted value and measured value difference of the invention are smaller by the test result in table 2, knot
Fruit is better than near-infrared analysis as a result, the prediction result of prediction model is accurate.The entire detection process of the present invention is not necessarily to pre-treatment, measurement
Time foreshortens to 5min by the 40min of standard method flow analysis, and detection efficiency greatly improves.Measurement result and standard method
It matches, error is less than 15%.
In addition, although there is accuracy height, high repeatability and other advantages in reduction-titration of Water-soluble Total Sugar and reduced sugar,
But its step is more, long flow path, operates numerous, reagent and water power consumption greatly, is only used for the macro-analysis of smallest number sample.And colorimetric
Rule stability is poor, and accuracy is not high enough, the interference vulnerable to other substances such as pigment, protein etc. in extracting solution.And this hair
Bright method is not necessarily to pre-treatment, can be used for the analysis of a large amount of samples, and analysis time is fast, stability is good, application easy to spread.
The basic principles, main features and advantages of the present invention have 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 above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. a kind of fast non-destructive detection method of fresh tobacco leaves total reducing sugar, which is characterized in that steps are as follows:
The capacitor includes fresh tobacco leaves upper surface capacitance per unit lengthC On , fresh tobacco leaves lower surface capacitance per unit lengthC Under With
And capacitance per unit length between fresh tobacco leaves blade upper and lower surfaceC Between ；
When detection, choose fresh tobacco leaves blade tip respectively, in leaf and three positions of phyllopodium are detected, on each position is detected respectively
Capacitor between surface, lower surface and upper and lower surface calculates corresponding capacitance per unit length later, then to the upper table being calculated
The mean value of capacitance per unit length, is denoted as between face capacitance per unit length, lower surface capacitance per unit length, blade upper and lower surfaceC On 、C Under 、C Between ；
It willC On 、C Under 、C Between Substitution such as drag is calculated, and the mass percentage of fresh tobacco leaves total reducing sugar can be obtained；
The model are as follows:A Total reducing sugar contains rate =1.09×C On +0.34×C Under +2.23×C Between , whereinA Total reducing sugar contains rate % is the matter of fresh tobacco leaves total reducing sugar
Measure percentage composition.
2. the fast non-destructive detection method of fresh tobacco leaves total reducing sugar according to claim 1, which is characterized in that unit length electricity
Capacitance measures the ratio of capacitor and its distance between two test points, unit be pico farad/centimetre.
3. the fast non-destructive detection method of fresh tobacco leaves total reducing sugar according to claim 1, which is characterized in that test point is avoided
Leaf vein, and the line between two test points does not span across leaf vein.
4. the fast non-destructive detection method of fresh tobacco leaves total reducing sugar according to claim 1, which is characterized in that when detection, often
A location detection number is no less than three times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340816.1A CN110082399A (en) | 2019-04-25 | 2019-04-25 | A kind of fast non-destructive detection method of fresh tobacco leaves total reducing sugar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340816.1A CN110082399A (en) | 2019-04-25 | 2019-04-25 | A kind of fast non-destructive detection method of fresh tobacco leaves total reducing sugar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110082399A true CN110082399A (en) | 2019-08-02 |
Family
ID=67416911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910340816.1A Pending CN110082399A (en) | 2019-04-25 | 2019-04-25 | A kind of fast non-destructive detection method of fresh tobacco leaves total reducing sugar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110082399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112926648A (en) * | 2021-02-24 | 2021-06-08 | 北京优创新港科技股份有限公司 | Method and device for detecting abnormality of tobacco leaf tip in tobacco leaf baking process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207216A (en) * | 2013-03-28 | 2013-07-17 | 浙江大学 | Non-destructive testing method for sugar content in spherical fruit and device thereof |
| CN103245619A (en) * | 2013-05-24 | 2013-08-14 | 贵州省烟草科学研究院 | Nondestructive testing method for maturity level of organic flue-cured tobacco leaves at late growth stage |
| CN103439365A (en) * | 2013-08-22 | 2013-12-11 | 浙江工商大学 | Device and method for detecting water content of fresh tobacco leaves |
| KR20160014478A (en) * | 2014-07-29 | 2016-02-11 | 광운대학교 산학협력단 | Biosensor, method for sensing physiological data using a biosensor, and method for manufacturing a biosensor |
| CN106568899A (en) * | 2016-11-01 | 2017-04-19 | 王华勤 | Tobacco leaf component judging method |
| CN109540894A (en) * | 2018-12-17 | 2019-03-29 | 云南省烟草公司红河州公司 | A kind of lossless rapid detection method of cured tobacco leaf maturity |
-
2019
- 2019-04-25 CN CN201910340816.1A patent/CN110082399A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207216A (en) * | 2013-03-28 | 2013-07-17 | 浙江大学 | Non-destructive testing method for sugar content in spherical fruit and device thereof |
| CN103245619A (en) * | 2013-05-24 | 2013-08-14 | 贵州省烟草科学研究院 | Nondestructive testing method for maturity level of organic flue-cured tobacco leaves at late growth stage |
| CN103439365A (en) * | 2013-08-22 | 2013-12-11 | 浙江工商大学 | Device and method for detecting water content of fresh tobacco leaves |
| KR20160014478A (en) * | 2014-07-29 | 2016-02-11 | 광운대학교 산학협력단 | Biosensor, method for sensing physiological data using a biosensor, and method for manufacturing a biosensor |
| CN106568899A (en) * | 2016-11-01 | 2017-04-19 | 王华勤 | Tobacco leaf component judging method |
| CN109540894A (en) * | 2018-12-17 | 2019-03-29 | 云南省烟草公司红河州公司 | A kind of lossless rapid detection method of cured tobacco leaf maturity |
Non-Patent Citations (1)
| Title |
|---|
| 贺帆 等: "密集烘烤过程中烤烟电特性和主要化学成分变化", 《烟草科技》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112926648A (en) * | 2021-02-24 | 2021-06-08 | 北京优创新港科技股份有限公司 | Method and device for detecting abnormality of tobacco leaf tip in tobacco leaf baking process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101393114B (en) | Rapid measuring method for physical property of flavouring essences for tobacco | |
| CN107796782B (en) | Redrying quality stability evaluation method based on tobacco leaf characteristic spectrum consistency measurement | |
| CN100575950C (en) | A kind of predicting method for fruit maturity | |
| CN104390932B (en) | Moisture content detection method based on Subtractive Infrared Spectroscopy | |
| CN108732127B (en) | Method for detecting mixing proportion of each component in cut tobacco | |
| CN108195895A (en) | A kind of tea leaf nitrogen content rapid detection method based on electronic nose and spectrophotometric color measurement instrument | |
| CN103760061B (en) | A kind of evaluation method of humidity preservation property of cigarette | |
| CN105548070B (en) | A kind of apple soluble solid near infrared detection position compensation method and system | |
| CN105548079A (en) | Method for determining cut tobacco composition based on near infrared spectrum | |
| CN109211829A (en) | A method of moisture content in the near infrared spectroscopy measurement rice based on SiPLS | |
| CN101685092B (en) | Method for judging alcoholization quality of flue-cured tobacco by pH detection value of tobacco leaf | |
| CN112229757A (en) | Method for evaluating rapid conformity of cigarette and filter stick pressure drop | |
| CN104596975A (en) | Method for measuring lignin of reconstituted tobacco by paper-making process by virtue of near infrared reflectance spectroscopy technique | |
| CN105628646B (en) | A kind of online tar prediction of cigarette and method for early warning | |
| CN103399050A (en) | Method for rapidly evaluating ginseng-adulterated American ginseng based on mouth feel information | |
| CN104596976A (en) | Method for determining protein of paper-making reconstituted tobacco through ear infrared reflectance spectroscopy technique | |
| CN110082399A (en) | A kind of fast non-destructive detection method of fresh tobacco leaves total reducing sugar | |
| CN104132904B (en) | One kind determines the combustible method of tobacco leaf | |
| CN109916971B (en) | Rapid nondestructive testing method for fresh tobacco moisture based on capacitor | |
| CN101526470B (en) | Method for detecting essence for tobacco | |
| CN104899424A (en) | Microscopic feature based method for objectively testing ripeness and leaf structure of flue-cured tobacco leaves | |
| CN109975363A (en) | A method of based on combined resistance Fast nondestructive evaluation fresh tobacco leaves total reducing sugar | |
| CN107238557A (en) | A kind of method of utilization near infrared spectroscopy quick detection calcium carbonate particle diameter distribution | |
| CN108226082B (en) | Calibration method for damping response time of moisture meter | |
| CN109900755A (en) | A kind of detection method of fresh tobacco leaves oil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190802 |