CN108007858A - A kind of detection method and evaluation method for tobacco leaf texture characteristic - Google Patents
A kind of detection method and evaluation method for tobacco leaf texture characteristic Download PDFInfo
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- CN108007858A CN108007858A CN201711154489.8A CN201711154489A CN108007858A CN 108007858 A CN108007858 A CN 108007858A CN 201711154489 A CN201711154489 A CN 201711154489A CN 108007858 A CN108007858 A CN 108007858A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
Abstract
The present invention relates to quality of tobacco detection field, is specifically a kind of detection method and evaluation method for tobacco leaf texture characteristic.The detection method is using Texture instrument, with the texture characteristic of TPA classical approaches measure tobacco leaf, and reads elasticity, toughness B1, hardness, recovery.Repetitive operation n 1 time, and record each data；The n data measured to Texture instrument, are averaged the elasticity for obtaining tobacco leaf, toughness, hardness, recovery.The present invention can fast and accurately measure the influence of tobacco longitudinal direction and vertical aspect active force to tobacco texture characteristic, research of the active force in the various directions that tobacco business is subject in tobacco processing course to tobacco processing and its influence of quality is set more to tend to be perfect, it is a beneficial complement to research of the tobacco business in terms of tobacco leaf physical property to be also undoubtedly.The total quality for improving China tobacco and cigarette products is had far-reaching significance.
Description
Technical field
The present invention relates to quality of tobacco detection field, is specifically a kind of detection method and evaluation for tobacco leaf texture characteristic
Method.
Background technology
Tobacco leaf will be subject to many mechanisms in process, as the leaf of beating of threshing and redrying production line goes to obstruct, throwing
Chopping, loose, selection by winnowing wind on production line are sent, and pipe tobacco is loose on cigarette production line；Cigarette on spicing machine and packing machine by
To violent compression；Suffered vibration and the friction of tube wall etc. in course of conveying.A series of this process requires tobacco leaf
Or pipe tobacco has certain mechanical property, so as to which breakage can be reduced in process, raw material availability and product quality are improved.
The mechanical property of tobacco mainly includes toughness, elasticity and fillibility etc..Research points out that the toughness of tobacco is its processing
The comprehensive embodiment of performance, including the measure index such as tensile strength, elongation percentage and crush resistance, i.e., say, anti-tensile is strong to a certain extent
Degree, elongation percentage and crush resistance are bigger, reflect that the toughness of tobacco leaf is stronger, and processing performance is better.The elasticity of tobacco leaf or pipe tobacco refers to
Pipe tobacco can deform upon under external force, being capable of restorable property after external force is removed.Its content with pipe tobacco oil
There is extremely close relationship.Under normal circumstances, the pipe tobacco of oil foot, its elasticity is strong, and quality is good, on the contrary then poor.Tobacco leaf or cigarette
The size of silk elasticity can reflect the quality of quality of tobacco shreds, and the size of toughness can then reflect the quality of the processing performance of pipe tobacco, generally
The good tobacco leaf of elasticity or its processing performance of pipe tobacco are all right, make broken just few, and the regularity of tobacco leaf or pipe tobacco is good, so as to can also carry
The quality of high cigarette finished product.
It is Longitudinal extending active force of the research to tobacco leaf mostly, for suffered in tobacco leaf vertical direction in previous studies
Active force do not do detailed research also.Using the elasticity of instrumental test pipe tobacco, studied, measured from perpendicular acting force direction
The size of cigarette tobacco leaf or tobacco elasticity, and showing in the form of data, from macroscopically having defined different tobacco leaves or pipe tobacco
Elastic size, be undoubtedly beneficial complement in terms of tobacco leaf physical property to tobacco business, increase this research, it will
Suffered external force situation more in full appreciation tobacco leaf process, is more advantageous to improving processing quality and level of processing.
The mechanical characteristic of tobacco texture characteristic：Texture characteristic is caused by during being reinforced to tobacco, so right
Tobacco carries out experiment of machanics, and the mechanics parameter related with tobacco texture characteristic can be found out by correlation analysis.In general, cigarette
The inside of leaf is always formed by many spatial mesh structures (palisade tissue or spongy tissue) or by cell, grid and grid it
Between be all to have formed global shape by wall thick or thin from level to level to support.In some sense, these grids have complete envelope
Close, have what part was opened wide, for tobacco, what is be full of in these grids is all air.This is full of the closing of air one by one
Or junior unit that part is unlimited an entirety is formed under the support of wall thick or thin from level to level.So in external force
Under effect, these tissues can revolt these external force, so that interiors of products structure is kept due to elasticity and the relation of intensity first
It is not destroyed completely.With the increase of external force, exceeded the elastic limit of outer wall, the resistance effect of wall will disappear, it is microcosmic on
These grids will crush one by one, and with the increase of external force, macroscopically product will crush.In the mechanism of external force
In, the grid that those parts are opened wide is broken first, and with the increase of external force, completely enclosed grid can also be crushed by external force, this
When can send very crisp sound.When the timing of external force one, although the spatial mesh structure of interiors of products can be destroyed, production
The entirety of product will not rupture, and can recover to a certain extent, this is because tobacco has preferable toughness and elasticity in itself.In this base
External force continues to increase on plinth, these thicker spongy tissues can be also destroyed, and product is cleaved into many small parts, it is impossible to replys again
State originally, product structure are thoroughly destroyed.Some researches show that under the effect of external force, broken first is production for institute
Network inside product, then whole product can just crush.
In terms of the external force that Texture instrument is applied in terms of instrument (such as biscuit, potato chips etc.) texture characteristic is exactly vertical
Active force.Texture instrument can also be measured for Longitudinal extending power at the same time, tobacco leaf be carried out using an instrument many-sided
Stress research, many-sided research is carried out under equal conditions, and not only result is more accurate, but also is simplified operating procedure and reduced
Difficulty, is more advantageous to research work from now on.Also the fuzzy concept of tobacco elasticity from traditional " elastic good, poor flexibility " is made to increase
To using specific data as the elasticity according to evaluation tobacco.
The content of the invention
The present invention is in order to solve the standard verification concept obfuscation of tobacco mechanical property and can not accurately determine tobacco property
A kind of problem, there is provided detection method and evaluation method for tobacco leaf texture characteristic.
The present invention is achieved by the following technical solutions：A kind of detection method for tobacco leaf texture characteristic, including with
Lower step：
A：Tobacco leaf to be detected is put into climatic chamber inner equilibrium at least 48 it is small when；
B：Tobacco leaf is cut into the identical disk of size with scissors；
C：Using Texture instrument, wherein test probe elects the cylindrical probe of p/35 models as, is measured with TPA classical approaches above-mentioned
The texture characteristic of tobacco leaf, and read elastic A1, toughness B1, hardness C1, recovery D1At least one of data；
D：N-1 step C of repetitive operation, and record each data An、Bn、Cn、Dn；
E：The n data measured to Texture instrument, are averaged the elastic A for obtaining tobacco leaf, toughness B, hardness C, reply
At least one of property D texture characteristic data.
Preferably, the temperature control of the constant temperature and humidity is 22 ± 2 DEG C, and humid control is 60 ± 0.5%.
Further as detection method technical solution is improved, and in step B, tobacco leaf is cut into size phase with scissors
With disk before, first carry out template with disk formed objects with filter paper, it is identical that tobacco leaf be then cut into size according to template
Disk.
Further as detection method technical solution is improved, when measuring the texture characteristic of tobacco leaf using 70% or
80% degree of compression.
Further as detection method technical solution is improved, and measures the test speed during texture characteristic of tobacco leaf
For 1.5mm/s, probe decrease speed is 1.0mm/s before testing, and opening speed of popping one's head in after test is 1.0mm/s, and data acquisition is fast
Spend for 200pps, the dead time per second compression is 10s.
Further as detection method technical solution is improved, the model TA-XTplus of the Texture instrument.
In addition, the present invention provides a kind of evaluation method for tobacco leaf texture characteristic, include the following steps：
(1) the elastic A of tobacco leaf, toughness B, firmly are obtained using a kind of any of the above-described detection method for tobacco leaf texture characteristic
Spend at least one of C, recovery D texture characteristic data；
(2) evaluation of the single texture characteristic of tobacco leaf：
1. elastic index：Upper tobacco leaf 0.65-0.95, middle part tobacco leaf are more than more than 0.95, and lower tobacco leaf is less than 0.65；Symbol
The tobacco leaf elastic qualities of conjunction elastic index are good, and the tobacco leaf elastic qualities for not meeting elastic index are poor；
Toughness 2. (g*s) index：Upper tobacco leaf is more than 1.3g*s, and middle part tobacco leaf is less than more than 1.6g*s, lower tobacco leaf
1.3-1.6g*s；Meet that the tobacco leaf toughness quality of toughness index is good, do not meet the tobacco leaf toughness poor quality of toughness index；
3. hardness (g) index：Upper tobacco leaf is less than 9000g, and middle part tobacco leaf is more than 14000g, lower tobacco leaf 9000-
Between 14000g；Meet that the tobacco leaf hardness quality of hardness number is good, do not meet the tobacco leaf hardness poor quality of hardness number；
4. recovery index：Upper tobacco leaf is less than 0.7, and middle part tobacco leaf is more than 0.9, between lower tobacco leaf 0.7-0.9；Meet
The tobacco leaf recovery quality of toughness index is good, does not meet the tobacco leaf recovery poor quality of recovery index.
Further, the present invention provides a kind of evaluation method for tobacco leaf texture characteristic, include the following steps：
(i) the elastic A of tobacco leaf, toughness B, firmly are obtained using a kind of any of the above-described detection method for tobacco leaf texture characteristic
Spend C, the texture characteristic data of recovery D；
(ii) the evaluation of tobacco leaf entirety texture characteristic：
Tobacco leaf entirety texture characteristic is obtained using following texture characteristic weighted calculation formula：
M=0.37*A+0.31*B+0.1* (C*10-4)+0.22*D
Tobacco leaf of the M values more than 1 can determine that preferably or sound tobacco；M values can determine that as ordinary quality between 0.7-1
Tobacco leaf；M values can determine that as the general or slightly worse tobacco leaf of quality below 0.7.
The present invention utilizes TPA classics evaluation assessment evaluation tobacco leaf or the texture characteristic of pipe tobacco.The present invention can be fast and accurately
Measure the influence of tobacco longitudinal direction and vertical aspect active force to tobacco texture characteristic, make tobacco business in tobacco processing course by
To the active force in various directions tobacco is processed and its research of influence of quality more tends to be perfect, be also undoubtedly to tobacco
Research of the industry in terms of tobacco leaf physical property is a beneficial complement.Total quality to improving China tobacco and cigarette products
Have far-reaching significance.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all on the premise of creative work is not made
Other embodiment, belongs to the scope that the present invention is protected.
A kind of detection method for tobacco leaf texture characteristic, comprises the following steps：
A：Tobacco leaf to be detected is put into climatic chamber inner equilibrium at least 48 it is small when；
B：Tobacco leaf is cut into the identical disk of size with scissors；
C：Using Texture instrument, wherein test probe elects the cylindrical probe of p/35 models as, is measured with TPA classical approaches above-mentioned
The texture characteristic of tobacco leaf, and read elastic A1, toughness B1, hardness C1, recovery D1At least one of data；
D：N-1 step C of repetitive operation, and record each data An、Bn、Cn、Dn；
E：The n data measured to Texture instrument, are averaged the elastic A for obtaining tobacco leaf, toughness B, hardness C, reply
At least one of property D texture characteristic data.
Texture instrument (food texture measurement) TPA (Texture Profile Analysis), also referred to as chews test twice
(Two Bite Test), is to the sensory evaluation of quality and the mechanical test developed, and the instrument for being widely used in texture of food is surveyed
Fixed, to texture of food, researcher brings great convenience.The invention belongs to domestic first Application in tobacco business, to tobacco
Physical property is studied, and tests the texture characteristic of tobacco, it is therefore an objective to preferably services tobacco business, ginseng is provided for tobacco leaf process
Examine.Texture instrument mainly includes host, special-purpose software, spare probe and annex；Measurement part is by operation console, rotational speed governor, horizontal stroke
Beam, base, direct current.Its structure is usually by a mechanical device that effect can be deformed to sample, and one is used to contain sample
The container of product and a record system composition recorded to power, time and deformation rate.Test surround distance (distance),
Time (time), active force (force) three is tested and interpretation of result.Texture instrument reflected mainly and mechanical characteristic
Related tobacco texture characteristic, its result have higher sensitivity and objectivity, and can be by the special-purpose software of outfit to knot
Fruit carries out accurate quantification processing, objective with the index of quantization comprehensively to evaluate tobacco, so as to avoid human factor pair
The subjective impact of cigarette quality evaluation result.
Test of the present invention to tobacco leaf and pipe tobacco texture characteristic carries out evaluation analysis with TPA classics evaluation assessment, finally with song
The form of line shows, and then curve is analyzed, and draws texture characteristic related data, and the recording mode of test curve is
Final.Texture characteristic parameter can be explained from typical TPA test curves：
Hardness (Hardness)：Maximum load during TPA curve first time press cycles.
Elastic (Springiness)：The degree that sample can recover again after the first second compression, with the first second compression
Sample recovers the ratio of the compression deformation of height and first time and represents afterwards.
Toughness (Toughness)：Sample alignment probe positions are fixed on objective table, probe it is at the uniform velocity mobile downwards until
Touch to noodles surface, compress disrumpent feelings sample work done.
Recovery (Resilience)：The peak value occurred in second of compression process.Sample is after the first second compression
The degree that can be replied again, is represented with the ratio of sample recovery extent and the degree of compression of first time after the second second compression.
Specifically, the temperature control of the constant temperature and humidity is 22 ± 2 DEG C, humid control is 60 ± 0.5%.
Further, in step B, before tobacco leaf is cut into the identical disk of size with scissors, first carried out with filter paper and disk
The template of formed objects, is then cut into the identical disk of size according to template by tobacco leaf.
The Texture instrument that the present invention specifically uses is TA-XTplus type Texture instrument.The model Texture instrument is Britain Stable
The TA-XTplus types and TA-HD food texture measurements of MicroSystems Inc. productions.Under control of a computer program, can be with
The transverse arm of installation different sensors moves up and down under setting speed, reaches the triggering of setting when sensor is contacted with sample
When stress (trigger force) or triggering depth, computer just with the writing speed of setting, (believe by the data of unit interval collection
Breath amount) start recording, and draw force acting on transducer and its traveling time or the curve of distance at the same time over the display.Due to sensing
Device is at the uniform velocity moved under the speed of setting, and therefore, abscissa time and distance can be with automatic conversions, and can further calculate
Go out the stress and strain relationship of testee.Since Texture instrument can configure multiple sensors, which can detect more
A mechanical performance parameter and sensory evaluation parameter, including the mode of action such as stretch, compress, shearing, reversing.
When in use, the movement locus popped one's head in test is Texture instrument：Probe is since initial position, with speed pressure before survey
To test sample, touch after sample again with test rate to sample compression a certain distance, then back to probe and sample
Trigger point (Trigger), after staying for some time, be further continued for compressing same distance downwards, then returned with speed after survey
Initial position before being surveyed to probe.
Humiture in tobacco physical characteristic in itself, process of manufacture and mechanically stressed suffered by production line
Situation, and according to laboratory actual conditions, determines the cylindrical probe using p/35 models, stress when simulated production is processed,
70% or 80% degree of compression of selection is tested, and the speed of active force during with reference to on-line machining, selects 1.5mm/s fast for test
Degree, probe decrease speed is 1.0mm/s before testing, and opening speed of popping one's head in after test is 1.0mm/s, and acquisition speed is
200pps, the dead time of two second compressions is 10s.For " medium ", " slightly thick " and " thickness " tobacco leaf picking with 80% compression
Degree, for " thin " and " slightly thin " tobacco leaf picking with 70% the degree of compression.Under different ecological environment, tobacco leaf difference in thickness reaches extremely aobvious
Write horizontal.So the staging staff of different regions are also different to the criterion of the level of thickness of tobacco leaf.Therefore, during specific implementation
Those skilled in the art can be directed to the tobacco leaf division level of thickness in specific area, then carry out experiment survey using the corresponding degree of compression
It is fixed.
The present invention utilizes the texture characteristic of instrumental test tobacco leaf or pipe tobacco, and the active force of vertical direction is studied,
Hardness, elasticity, toughness, the size of four indexs of recovery of tobacco leaf or pipe tobacco are measured, and is expressed in the form of data.
The present invention is used as examination criteria using Texture instrument, including Texture instrument carry probe, pop one's head in, it is and perfect
Detecting system, so the method detected based on this using probe, probe to tobacco leaf texture characteristic each falls within protection of the present invention
Among scope.
The present invention has drawn the data standard of tobacco leaf texture characteristic by a large number of experiments, and provides one kind and be used for tobacco leaf
The evaluation method of texture characteristic, includes the following steps：
(1) the elastic A of tobacco leaf, toughness B, firmly are obtained using a kind of any of the above-described detection method for tobacco leaf texture characteristic
Spend at least one of C, recovery D texture characteristic data；
(2) evaluation of the single texture characteristic of tobacco leaf：
1. elastic index：Upper tobacco leaf 0.65-0.95, middle part tobacco leaf are more than more than 0.95, and lower tobacco leaf is less than 0.65；Symbol
The tobacco leaf elastic qualities of conjunction elastic index are good, and the tobacco leaf elastic qualities for not meeting elastic index are poor；
Toughness 2. (g*s) index：Upper tobacco leaf is more than 1.3g*s, and middle part tobacco leaf is less than more than 1.6g*s, lower tobacco leaf
1.3-1.6g*s；Meet that the tobacco leaf toughness quality of toughness index is good, do not meet the tobacco leaf toughness poor quality of toughness index；
3. hardness (g) index：Upper tobacco leaf is less than 9000g, and middle part tobacco leaf is more than 14000g, lower tobacco leaf 9000-
Between 14000g；Meet that the tobacco leaf hardness quality of hardness number is good, do not meet the tobacco leaf hardness poor quality of hardness number；
4. recovery index：Upper tobacco leaf is less than 0.7, and middle part tobacco leaf is more than 0.9, between lower tobacco leaf 0.7-0.9；Meet
The tobacco leaf recovery quality of toughness index is good, does not meet the tobacco leaf recovery poor quality of recovery index.
In detection method of the present invention, any one or a few texture characteristic of tobacco leaf can be detected.Cause
This, can also evaluate any one or a few texture characteristic of tobacco leaf.
Also, the present invention provides a kind of evaluation method for tobacco leaf texture characteristic, include the following steps：
(i) the elastic A of tobacco leaf, toughness B, firmly are obtained using a kind of any of the above-described detection method for tobacco leaf texture characteristic
Spend C, the texture characteristic data of recovery D；
(ii) the evaluation of tobacco leaf entirety texture characteristic：
Tobacco leaf entirety texture characteristic M is obtained using following texture characteristic weighted calculation formula：
M=0.37*A+0.31*B+0.1* (C*10-4)+0.22*D
Tobacco leaf of the M values more than 1 can determine that preferably or sound tobacco；M values are between 0.7-1 (without 0.7, but comprising 1)
The tobacco leaf that can determine that as ordinary quality；M values can determine that as the general or slightly worse tobacco leaf of quality below 0.7.
According to experiment with reference to the definite M values of actual production, processing, tobacco leaf texture characteristic M values are higher, illustrate tobacco leaf entirety matter
Structure characteristic is better, and the resist processing of tobacco leaf is better, and production is made broken smaller, and the reasonable usability of tobacco leaf is better.
The meaning of the two kinds provided by the invention evaluation methods for being used for tobacco leaf texture characteristic is that the texture according to tobacco leaf
Characteristic can tentatively judge the quality of the quality of tobacco leaf, and the plantation and processing for tobacco leaf have certain directive significance；Cigarette adds
Work enterprise can also be according to the texture characteristic of tobacco leaf, the expection service condition of a collection of raw tobacco material of preliminary judgement, also to a collection of cigarette
Leaf raw material gives preliminary judgement whether purchase.
Explanation is further explained to the application with reference to specific implementation example.
A kind of detection method for tobacco leaf texture characteristic, including following steps：
A：Climatic chamber inner equilibrium is put at least to the tobacco leaf (upper tobacco leaf, grade B3F) that to detect in a certain place of production
48 it is small when；The temperature control of the constant temperature and humidity is 22 ± 2 DEG C, and humid control is 60 ± 0.5%；
B：Template (disk of R=2cm) is carried out with filter paper, tobacco leaf is cut into the identical disk of size with scissors according to template；
C：Using TA-XTplus type Texture instruments, wherein test probe elects the cylindrical probe of p/35 models as, selects 80%
The degree of compression tested, the speed of active force during with reference to on-line machining, it be test speed to select 1.5mm/s, is popped one's head in before test
Decrease speed is 1.0mm/s, and opening speed of popping one's head in after test is 1.0mm/s, acquisition speed 200pps, two second compressions
Dead time is 10s.The texture characteristic of above-mentioned tobacco leaf is measured with TPA classical approaches, and reads elasticity A therein1, toughness B1, hardness
C1, recovery data D1, record detection numerical value；
D：6 step C of repetitive operation, and record each data A2∽A7、B2∽B7、C2∽C7、D2∽D7, such as following table institute
Show；
| Elasticity | Toughness (g*s) | Hardness (g) | Recovery | |
| 1 | 0.881 | 1.280 | 7228.401 | 0.643 |
| 2 | 0.867 | 1.215 | 7347.306 | 0.612 |
| 3 | 0.866 | 1.209 | 7099.836 | 0.655 |
| 4 | 0.865 | 1.266 | 7623.234 | 0.668 |
| 5 | 0.882 | 1.279 | 7938.850 | 0.609 |
| 6 | 0.872 | 1.273 | 7102.028 | 0.659 |
| 7 | 0.873 | 1.278 | 7713.290 | 0.631 |
| Average value | 0.872 | 1.257 | 7436.135 | 0.640 |
E：7 data measured to Texture instrument, are averaged the elastic A for obtaining tobacco leaf, toughness B, hardness C, reply
Property D.
According to the evaluation procedure of the single texture characteristic of tobacco leaf, elastic A, toughness B, hardness C, the recovery D of the tobacco leaf are drawn
Meet single index, quality is good.
According to weighted formula and draw tobacco leaf texture characteristic numerical value (M) be 0.9275, can determine that the cigarette for ordinary quality
Leaf.Since weighted formula is with reference to obtained by the weighting weight in actual production.Since institute's test sample is put down under same humiture
Weighing apparatus, the test result fluctuation in the case where External Error is little of the texture characteristic of sample is little, so 7 groups of data of test have
Representativeness, can also do several groups of experiments so that numerical value is more accurate more.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of detection method for tobacco leaf texture characteristic, it is characterised in that comprise the following steps：
A：Tobacco leaf to be detected is put into climatic chamber inner equilibrium at least 48 it is small when；
B：Tobacco leaf is cut into the identical disk of size with scissors；
C：Using Texture instrument, wherein test probe elects the cylindrical probe of p/35 models as, and above-mentioned tobacco leaf is measured with TPA classical approaches
Texture characteristic, and read elastic A1, toughness B1, hardness C1, recovery D1At least one of data；
D：N-1 step C of repetitive operation, and record each data An 、Bn 、Cn 、Dn；
E：The n data measured to Texture instrument, are averaged in the elastic A for obtaining tobacco leaf, toughness B, hardness C, recovery D
At least one texture characteristic data.
2. a kind of detection method for tobacco leaf texture characteristic according to claim 1, it is characterised in that the constant temperature is permanent
Wet temperature control is 22 ± 2 DEG C, and humid control is 60 ± 0.5%.
3. a kind of detection method for tobacco leaf texture characteristic according to claim 2, it is characterised in that, will in step B
Before tobacco leaf is cut into the identical disk of size with scissors, template with disk formed objects first is carried out with filter paper, then according to template
Tobacco leaf is cut into the identical disk of size.
4. a kind of detection method for tobacco leaf texture characteristic according to claim 3, it is characterised in that measure tobacco leaf
During texture characteristic using 70% or 80% the degree of compression.
5. a kind of detection method for tobacco leaf texture characteristic according to claim 4, it is characterised in that measure tobacco leaf
Test speed during texture characteristic is 1.5mm/s, and probe decrease speed is 1.0 mm/s before testing, opening speed of popping one's head in after test
For 1.0 mm/s, acquisition speed 200pps, the dead time per second compression is 10s.
A kind of 6. detection method for tobacco leaf texture characteristic according to claim 5, it is characterised in that the Texture instrument
Model TA-XTplus.
7. a kind of evaluation method for tobacco leaf texture characteristic, it is characterised in that include the following steps：
（1）Using being obtained tobacco leaf such as a kind of detection method for tobacco leaf texture characteristic of claim 1 to 6 any one of them
At least one of elastic A, toughness B, hardness C, recovery D texture characteristic data；
（2）The evaluation of the single texture characteristic of tobacco leaf：
1. elastic index：Upper tobacco leaf 0.65-0.95, middle part tobacco leaf are more than more than 0.95, and lower tobacco leaf is less than 0.65；Meet bullet
The tobacco leaf elastic qualities of property index are good, and the tobacco leaf elastic qualities for not meeting elastic index are poor；
2. toughness（g*s）Index：Upper tobacco leaf is more than 1.3g*s, and middle part tobacco leaf is less than more than 1.6g*s, lower tobacco leaf 1.3-
1.6g*s；Meet that the tobacco leaf toughness quality of toughness index is good, do not meet the tobacco leaf toughness poor quality of toughness index；
3. hardness（g）Index：Upper tobacco leaf is less than 9000g, and middle part tobacco leaf is more than 14000g, lower tobacco leaf 9000-14000g it
Between；Meet that the tobacco leaf hardness quality of hardness number is good, do not meet the tobacco leaf hardness poor quality of hardness number；
4. recovery index：Upper tobacco leaf is less than 0.7, and middle part tobacco leaf is more than 0.9, between lower tobacco leaf 0.7-0.9；Meet toughness
The tobacco leaf recovery quality of index is good, does not meet the tobacco leaf recovery poor quality of recovery index.
8. a kind of evaluation method for tobacco leaf texture characteristic, it is characterised in that include the following steps：
(i) using such as a kind of detection method acquisition tobacco leaf for tobacco leaf texture characteristic of claim 1 to 6 any one of them
Elastic A, toughness B, hardness C, the texture characteristic data of recovery D；
(ii) the evaluation of tobacco leaf entirety texture characteristic：
Tobacco leaf entirety texture characteristic is obtained using following texture characteristic weighted calculation formula：
M=0.37*A+0.31*B+0.1*(C*10-4)+0.22*D
Tobacco leaf of the M values more than 1 can determine that preferably or sound tobacco；The cigarette that can determine that as ordinary quality of the M values between 0.7-1
Leaf；M values can determine that as the general or slightly worse tobacco leaf of quality below 0.7.
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| CN110296934A (en) * | 2019-06-28 | 2019-10-01 | 广州市农业科学研究院 | A kind of detection method of cabbage heart stem texture characteristic |
| CN110308045A (en) * | 2019-07-31 | 2019-10-08 | 上海烟草集团有限责任公司 | The measuring method of papermaking-method reconstituted tobaccos pliability |
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