CN105372345A - Method for representing clean aroma characteristics of cigarettes with indexes - Google Patents
Method for representing clean aroma characteristics of cigarettes with indexes Download PDFInfo
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- CN105372345A CN105372345A CN201510715846.8A CN201510715846A CN105372345A CN 105372345 A CN105372345 A CN 105372345A CN 201510715846 A CN201510715846 A CN 201510715846A CN 105372345 A CN105372345 A CN 105372345A
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- property material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
Abstract
The invention discloses a method for representing the clean aroma characteristics of cigarettes with indexes. The method includes the steps that 12 kinds of representative cigarette clean aroma characteristic substances are selected from cut tobacco aroma components, characteristic substances having positive influences and negative influences on the clean aroma are found out respectively through calculation, and the weights of characteristic substance indexes are determined according to the influence degrees; then, the cut tobacco aroma components of the finished cigarettes are measured and analyzed through the simultaneous distillation extraction-gas chromatography/mass spectrometry method for measuring aroma components of tobacco and tobacco products; finally, the clean aroma characteristic index GI of the finished cigarettes is calculated through the weighted statistics method. The index can visually represent the strength of the clean aroma characteristics of the cigarettes, and the evaluation result is objective and accurate. The method is easy and convenient to implement and low in cost and provides new ideas for cigarette quality maintenance and quality control.
Description
Technical field
The invention belongs to technical field of tobacco processing, specifically relate to a kind of method adopting index to characterize cigarette delicate fragrance odor characteristic.
Background technology
Odor characteristic is the peculiar taste of cigarette, is characteristic and the mark of a cigarette brand, is one of consumer's important evidence of choosing cigarette, is the prerequisite of guide consumption.The fragrance of cigarette is always one of major criterion of people's evaluating cigarette quality.Research shows, the chemical composition in cigarette plays crucial influence to the aesthetic quality of cigarette, odor characteristic, and the increase and decrease of the crucial flavor matter of pipe tobacco and cigarette fragrance quality change close contacting.
At present, sensory evaluating smoking's method is generally adopted to the evaluation of cigarette flavor feature both at home and abroad.Although the method has certain positive role, the odor characteristic evaluation based on sensory evaluating smoking is vulnerable to smoke panel test the impact of personnel's oneself factor and external environment condition, bring uncertain factor can to Cigarette evaluation result.Therefore, based on shredded tobacco fragrant, use instrumental analysis detection means, in conjunction with Correlation Analysis Technology, the characteristic index or the compound that cigarette flavor feature are had to crucial effect is extracted from numerous chemical compositions, thus realize to the odor characteristic of cigarette make objective, evaluate and just seem particularly important exactly, but still there is no good solution in prior art.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of method adopting index to characterize cigarette delicate fragrance odor characteristic, to make the evaluation result of cigarette flavor feature more objective and accurate.
Object of the present invention is achieved by the following technical programs.
Except as otherwise noted, percentage of the present invention is mass percent.
Adopt index to characterize a method for cigarette delicate fragrance odor characteristic, comprise the following steps:
(1) according to the relation between cigarette delicate fragrance odor characteristic and shredded tobacco fragrant, and in conjunction with delicate fragrance fragrance the way of production, determine that 12 kinds of materials are as delicate fragrance odor characteristic material: 6-methyl-5-hepten-2-one, phenylethyl alcohol, triethyl citrate, benzaldehyde, 5 methyl furfural, menthol, damascenone, Megastigmatrienone, methyl myristate, tetradecylic acid, methyl palmitate and hexadecylic acid;
(2) correlation coefficient r between delicate fragrance fragrance score and 12 kinds of property materials is calculated
ior r
j, and then determine that 3 property materials on delicate fragrance fragrance has forward to affect are: 6-methyl-5-hepten-2-one, phenylethyl alcohol and triethyl citrate; On 9 property materials that delicate fragrance fragrance has negative sense to affect be: benzaldehyde, 5 methyl furfural, menthol, damascenone, Megastigmatrienone, methyl myristate, tetradecylic acid, methyl palmitate and hexadecylic acid;
(3) weight of each property material is calculated, wherein, forward index weights ω
i,
r
ifor forward index related coefficient, m is the property material number having forward to affect; Negative sense index weights g
j,
r
jfor negative sense index related coefficient, n is the property material number having negative sense to affect;
(4) according to the requirement of " the mensuration Simultaneous distillation-extraction-By Gas Chromatography-mass Spectrometry of tobacco and tobacco product aroma component " TCJC-ZY-IV-014-2012, each property material actual content x is carried out to the aroma component of cigarette to be measured
iand x
jmensuration;
(5) the desired value P of each property material in cigarette to be measured is calculated
ior G
j, property material desired value is the relative content of each property material in every gram of pipe tobacco;
x
i (j)for the actual content of every gram of each property material of pipe tobacco, μ
i (j)for the average of every gram of each property material content of pipe tobacco, σ
i (j)for the standard deviation of every gram of each property material content of pipe tobacco;
(6) adopt the method for weighted statistical to calculate the delicate fragrance odor characteristic index GI of cigarette to be measured, its computing formula is as follows:
m is the property material number having forward to affect, ω
ibe the weight of i-th forward property material, P
ibe the desired value of i-th forward property material, n is the property material number having negative sense to affect, g
jfor the weight of a jth negative sense property material, G
jfor the desired value of a jth negative sense property material;
(7) the delicate fragrance feature of cigarette and index GI correlation, namely the delicate fragrance odor characteristic index GI value of cigarette to be measured is higher, then show that the delicate fragrance odor characteristic of this cigarette is more obvious.
Relative to prior art, the present invention has the following advantages:
1, the present invention classifies on the property material affecting cigarette delicate fragrance fragrance and screens initiatively, the method of weighted statistical is adopted to build cigarette delicate fragrance odor characteristic index, quantitatively evaluating is carried out by the delicate fragrance odor characteristic of numerical value to cigarette of index, its evaluation result is objective and accurate, and the quality for cigarette safeguards and quality control proposes new thinking.
2, apply method of the present invention and the calculating of GI index is carried out to finished cigarettes, contribute to production and processing and the development and Design of cigarette product;
3, the method easy and simple to handle, with low cost, be convenient to realize industrial applications.
Embodiment
Below by embodiment, the present invention is described in further detail, but embodiment is not limited to the technical solution.
Embodiment 1:-----characterizes the delicate fragrance odor characteristic of YY trade mark cigarette:
(1) according to the relation between cigarette delicate fragrance odor characteristic and shredded tobacco fragrant, and in conjunction with delicate fragrance fragrance the way of production, determine 12 kinds of representative property materials: 6-methyl-5-hepten-2-one, phenylethyl alcohol, triethyl citrate, benzaldehyde, 5 methyl furfural, menthol, damascenone, Megastigmatrienone, methyl myristate, tetradecylic acid, methyl palmitate, hexadecylic acid;
(2) correlation coefficient r between delicate fragrance fragrance score and 12 kinds of property materials is calculated
ior r
j, result of calculation is as shown in table 1;
Wherein, delicate fragrance fragrance score carries out by the regulation of " technical requirement of GB5606.4-2005 cigarette sense organ " the delicate fragrance fragrance score that obtains after Sensory Quality of Cigarette is smoked panel test.
Described correlation coefficient r
ior r
jpass through formula
calculate,
the average of variable x, y respectively, x
i, y
ii-th observed reading of variable x, y respectively.
Table 1: the correlation coefficient charts of delicate fragrance fragrance score and property material
Can be determined by table 1, on 3 property materials that delicate fragrance fragrance has forward to affect be: 6-methyl-5-hepten-2-one, phenylethyl alcohol, triethyl citrate; On 9 property materials that delicate fragrance fragrance has negative sense to affect be: benzaldehyde, 5 methyl furfural, menthol, damascenone, Megastigmatrienone, methyl myristate, tetradecylic acid, methyl palmitate, hexadecylic acid;
(3) substitute into the weight of each property material of Calculation of correlation factor, result is as shown in table 2, wherein, and forward index weights ω
i,
r
ifor forward index related coefficient (related coefficient between i-th forward effect characteristics content of material and delicate fragrance fragrance score), m is the property material number having forward to affect; Negative sense index weights g
j,
r
jfor negative sense index related coefficient (related coefficient between a jth negative sense effect characteristics content of material and delicate fragrance fragrance score), n is the property material number having negative sense to affect;
Table 2: the weight of each property material
(4) mensuration of each property material actual content is carried out according to the aroma component of requirement to YY trade mark cigarette of " the mensuration Simultaneous distillation-extraction-By Gas Chromatography-mass Spectrometry of tobacco and tobacco product aroma component " TCJC-ZY-IV-014-2012; Measurement result is as shown in table 3;
Described " the mensuration Simultaneous distillation-extraction-By Gas Chromatography-mass Spectrometry of tobacco and tobacco product aroma component " TCJC-ZY-IV-014-2012 comprises sample handling processes, the instrument of employing and experiment condition, compounds content calculates.
Sample handling processes is: after pipe tobacco is cured 4h at (40 ± 1) DEG C, pulverize with comminutor, cross 40 mesh sieves, gained offal in tandem-driving bogie in temperature 22 DEG C, 24h is balanced under the condition of humidity 60%, accurately take the offal sample 25.0g after balance, put into SDE method, methylene chloride is adopted to carry out dynamic extraction 2h as solvent continuously to pipe tobacco, extract obtained after anhydrous sodium sulfate drying, 1.0mL is concentrated in Rotary Evaporators, add 50 μ l, the ethanol solution of the phenylmethyl acetate of 0.1mol/L, shake up, Agilent6890N/5973N Gc-ms instrument is adopted to analyze it.
The instrument adopted and experiment condition are:
Reagent: methylene chloride (AR, western Gansu Province chemical industry), anhydrous sodium sulfate (AR, Tianjin Ke Miou company), absolute ethyl alcohol (chromatographically pure, Di Ma company), phenylmethyl acetate (chromatographically pure, lark prestige company);
Instrument: 6890N/5973NGC/MS combined instrument (Agilent company of the U.S.); Rotary Evaporators (B ü CHI company of Switzerland); PB602-S electronic balance (sensibility reciprocal 0.01g, METTLERTOLEDO company of Switzerland); SDE method (self-control);
GC/MS combined instrument analysis condition: chromatographic column: HP-5MS (30m × 0.25mm × 0.25 μm) capillary column; Injector temperature: 240 DEG C; Carrier gas: He, 1mL/min; Temperature programme: 50 DEG C of (1min) → 8 DEG C/min160 DEG C (2min) → 8 DEG C/min260 DEG C (15min);
Sample size: 2 μ L, split ratio: 25:1; Transmission line temperature: 280 DEG C; Ionization mode: EI, ionizing energy: 70eV; Ion source temperature: 230 DEG C; Level Four bar temperature: 160 DEG C; Mass range 35-455aum, adopts NIST98, Wiley275 library searching qualitative.
Being calculated as of compounds content:
Pass through formula
calculate the content of each material, x is aroma component content (μ g/g), and a is compound peaks area, b is interior mark peak area, 2 add volume (mL) for interior mark, and 100 is interior mark concentration (mg/L), and 25 is sample quality (g).
Table 3YY trade mark cigarette every gram of pipe tobacco property material content (unit: μ g)
(5) the desired value P of each property material in YY trade mark cigarette is calculated
ior G
j, property material desired value is the relative content of each property material in every gram of pipe tobacco, and result is as shown in table 5.
x
i (j)for the actual content of every gram of each property material of pipe tobacco, μ
i (j)for the average of every gram of each property material content of pipe tobacco, σ
i (j)for the standard deviation of every gram of each property material content of pipe tobacco, average μ
i (j)and standard deviation sigma
i (j)in table 4;
Table 4: each property material content average μ
i (j)and standard deviation sigma
i (j)
Table 5YY trade mark cigarette property material relative content
(6) adopt the method for weighted statistical to calculate the delicate fragrance odor characteristic index GI of YY trade mark cigarette, its computing formula is as follows:
m is the property material number having forward to affect, ω
ibe the weight of i-th forward property material, P
ibe the desired value of i-th forward property material, n is the property material number having negative sense to affect, g
jfor the weight of a jth negative sense property material, G
jfor the desired value of a jth negative sense property material;
The GI value of YY trade mark cigarette is 1.790.
Embodiment 2----characterizes the delicate fragrance odor characteristic of FRW trade mark cigarette:
Repeat embodiment 1, have following difference:
(1) according to the requirement of " the mensuration Simultaneous distillation-extraction-By Gas Chromatography-mass Spectrometry of tobacco and tobacco product aroma component " TCJC-ZY-IV-014-2012, FRW trade mark cigarette aroma component is carried out to the mensuration of each property material actual content, measurement result is as shown in table 6;
Table 6FRW trade mark cigarette every gram of pipe tobacco property material content (unit: μ g)
(2) the desired value P of each property material in FRW trade mark cigarette is calculated
ior G
j, property material desired value is the relative content of each property material in every gram of pipe tobacco, and result is as shown in table 7.
Table 7FRW trade mark cigarette property material relative content
(3) adopt the method for weighted statistical to calculate the delicate fragrance odor characteristic index GI of FRW trade mark cigarette, the GI value of FRW trade mark cigarette is-3.484.
Embodiment 3----characterizes the delicate fragrance odor characteristic of BS trade mark cigarette:
Repeat embodiment 1, have following difference:
(1) according to the requirement of " the mensuration Simultaneous distillation-extraction-By Gas Chromatography-mass Spectrometry of tobacco and tobacco product aroma component " TCJC-ZY-IV-014-2012, BS trade mark cigarette aroma component is carried out to the mensuration of each property material actual content, measurement result is as shown in table 8;
Table 8BS trade mark cigarette every gram of pipe tobacco property material content (unit: μ g)
(2) the desired value P of each property material in BS trade mark cigarette is calculated
ior G
j, property material desired value is the relative content of each property material in every gram of pipe tobacco, and result is as shown in table 9.
Table 9BS trade mark cigarette property material relative content
(3) adopt the method for weighted statistical to calculate the delicate fragrance odor characteristic index GI of BS trade mark cigarette, the GI value of BS trade mark cigarette is-2.073.
Embodiment 4----characterizes the delicate fragrance odor characteristic of HH trade mark cigarette:
Repeat embodiment 1, have following difference:
(1) according to the requirement of " the mensuration Simultaneous distillation-extraction-By Gas Chromatography-mass Spectrometry of tobacco and tobacco product aroma component " TCJC-ZY-IV-014-2012, HH trade mark cigarette aroma component is carried out to the mensuration of each property material actual content, measurement result is as shown in table 10;
Table 10HH trade mark cigarette every gram of pipe tobacco property material content (unit: μ g)
(2) the desired value P of each property material in HH trade mark cigarette is calculated
ior G
j, property material desired value is the relative content of each property material in every gram of pipe tobacco, and result is as shown in table 11.
Table 11HH trade mark cigarette property material relative content
(3) adopt the method for weighted statistical to calculate the delicate fragrance odor characteristic index GI of HH trade mark cigarette, the GI value of HH trade mark cigarette is-1.837.
Embodiment 5----characterizes the delicate fragrance odor characteristic of HSC trade mark cigarette:
Repeat embodiment 1, have following difference:
(1) according to the requirement of " the mensuration Simultaneous distillation-extraction-By Gas Chromatography-mass Spectrometry of tobacco and tobacco product aroma component " TCJC-ZY-IV-014-2012, HSC trade mark cigarette aroma component is carried out to the mensuration of each property material actual content, measurement result is as shown in table 12;
Table 12HSC trade mark cigarette every gram of pipe tobacco property material content (unit: μ g)
(2) the desired value P of each property material in HSC cigarette is calculated
ior G
j, property material desired value is the relative content of each property material in every gram of pipe tobacco, and result is as shown in table 13.
Table 13HSC trade mark cigarette property material relative content
(3) adopt the method for weighted statistical to calculate the delicate fragrance odor characteristic index GI of HSC trade mark cigarette, the GI value of HSC trade mark cigarette is 3.549.
Application Example 1
Carry out aesthetic quality by the regulation of expert group according to " technical requirement of GB5606.4-2005 cigarette sense organ " of smokeing panel test to the cigarette that embodiment 1 ~ 5 characterizes to smoke panel test, and contrast with the GI value of each cigarette, the results are shown in Table 14.
Table 14 Sensory Quality of Cigarette is smoked panel test delicate fragrance odor characteristic smoking result
As shown in Table 14, GI index and its delicate fragrance odor characteristic sensory evaluating smoking result of cigarette present positive correlation, the cigarette that delicate fragrance odor characteristic score is high, its GI index is also corresponding higher, shows that GI index has certain applicability in sign cigarette delicate fragrance odor characteristic trend.
Claims (1)
1. adopt index to characterize a method for cigarette delicate fragrance odor characteristic, comprise the following steps:
(1) according to the relation between cigarette delicate fragrance odor characteristic and shredded tobacco fragrant, and in conjunction with delicate fragrance fragrance the way of production, determine that 12 kinds of materials are as delicate fragrance odor characteristic material: 6-methyl-5-hepten-2-one, phenylethyl alcohol, triethyl citrate, benzaldehyde, 5 methyl furfural, menthol, damascenone, Megastigmatrienone, methyl myristate, tetradecylic acid, methyl palmitate and hexadecylic acid;
(2) correlation coefficient r between delicate fragrance fragrance score and 12 kinds of property materials is calculated
ior r
j, and then determine that 3 property materials on delicate fragrance fragrance has forward to affect are: 6-methyl-5-hepten-2-one, phenylethyl alcohol and triethyl citrate; On 9 property materials that delicate fragrance fragrance has negative sense to affect be: benzaldehyde, 5 methyl furfural, menthol, damascenone, Megastigmatrienone, methyl myristate, tetradecylic acid, methyl palmitate and hexadecylic acid;
(3) weight of each property material is calculated, wherein, forward index weights ω
i,
r
ifor forward index related coefficient, m is the property material number having forward to affect; Negative sense index weights g
j,
r
jfor negative sense index related coefficient, n is the property material number having negative sense to affect;
(4) according to the requirement of " the mensuration Simultaneous distillation-extraction-By Gas Chromatography-mass Spectrometry of tobacco and tobacco product aroma component " TCJC-ZY-IV-014-2012, each property material actual content x is carried out to the aroma component of cigarette to be measured
iand x
jmensuration;
(5) the desired value P of each property material in cigarette to be measured is calculated
ior G
j, property material desired value is the relative content of each property material in every gram of pipe tobacco;
x
i (j)for the actual content of every gram of each property material of pipe tobacco, μ
i (j)for the average of every gram of each property material content of pipe tobacco, σ
i (j)for the standard deviation of every gram of each property material content of pipe tobacco;
(6) adopt the method for weighted statistical to calculate the delicate fragrance odor characteristic index GI of cigarette to be measured, its computing formula is as follows:
m is the property material number having forward to affect, ω
ibe the weight of i-th forward property material, P
ibe the desired value of i-th forward property material, n is the property material number having negative sense to affect, g
jfor the weight of a jth negative sense property material, G
jfor the desired value of a jth negative sense property material;
(7) the delicate fragrance feature of cigarette and index GI correlation, namely the delicate fragrance odor characteristic index GI value of cigarette to be measured is higher, then show that the delicate fragrance odor characteristic of this cigarette is more obvious.
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| CN108169420A (en) * | 2017-12-19 | 2018-06-15 | 云南瑞升烟草技术（集团）有限公司 | A kind of method using index characterization cigarette style characteristic difference degree |
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| CN106324126A (en) * | 2016-08-11 | 2017-01-11 | 云南中烟工业有限责任公司 | Cigarette-fruity-fragrance-type quantitative forecasting method |
| CN108169420A (en) * | 2017-12-19 | 2018-06-15 | 云南瑞升烟草技术（集团）有限公司 | A kind of method using index characterization cigarette style characteristic difference degree |
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