CN110501465A - A kind of evaluation method determining tobacco mellowing warehouse peculiar smell - Google Patents
A kind of evaluation method determining tobacco mellowing warehouse peculiar smell Download PDFInfo
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 66
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 66
- 238000011156 evaluation Methods 0.000 title claims abstract description 48
- 238000012360 testing method Methods 0.000 claims abstract description 45
- 238000005070 sampling Methods 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 13
- 230000001953 sensory effect Effects 0.000 claims description 34
- 239000000126 substance Substances 0.000 claims description 21
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 18
- 239000000523 sample Substances 0.000 claims description 18
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 12
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 claims description 10
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 210000000697 sensory organ Anatomy 0.000 claims description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 6
- 238000001212 derivatisation Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 6
- -1 TVOC Chemical compound 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- JPOXNPPZZKNXOV-UHFFFAOYSA-N bromochloromethane Chemical compound ClCBr JPOXNPPZZKNXOV-UHFFFAOYSA-N 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 claims description 4
- 239000013068 control sample Substances 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 4
- 229920006255 plastic film Polymers 0.000 claims description 4
- 229910052704 radon Inorganic materials 0.000 claims description 4
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 claims description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical class ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 2
- HORQAOAYAYGIBM-UHFFFAOYSA-N 2,4-dinitrophenylhydrazine Chemical compound NNC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O HORQAOAYAYGIBM-UHFFFAOYSA-N 0.000 claims description 2
- KNNPTLFTAWALOI-UHFFFAOYSA-N acetaldehyde;formaldehyde Chemical compound O=C.CC=O KNNPTLFTAWALOI-UHFFFAOYSA-N 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 239000001273 butane Substances 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 239000012634 fragment Substances 0.000 claims description 2
- 238000004128 high performance liquid chromatography Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 2
- 231100000719 pollutant Toxicity 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 230000000391 smoking effect Effects 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 claims 2
- 239000001282 iso-butane Substances 0.000 claims 1
- 235000013847 iso-butane Nutrition 0.000 claims 1
- 238000005374 membrane filtration Methods 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 238000001303 quality assessment method Methods 0.000 description 21
- 230000000284 resting effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000003933 environmental pollution control Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- G01N33/0001—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 by organoleptic means
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The present invention relates to tobacco storages to refine technical field, and specifically a kind of evaluation method for determining tobacco mellowing warehouse peculiar smell includes the following steps, step 1, test specimen prepares；Step 2, alcoholization select between warehouse storehouse；Step 3, test specimen are placed；Step 4 controls the interior environment temperature and humidity in storehouse；Step 5, sampling；Step 6, test specimen evaluation；Step 7, comprehensive judgement.The present invention comprehensively considers the placement and selection of the interior test specimen in storehouse in alcoholization warehouse, by the way that reasonable operation step is arranged, selects whether suitable evaluation method has peculiar smell scientifically to be evaluated in alcoholization warehouse.
Description
Technical field
The present invention relates to tobacco storages to refine technical field, specifically a kind of evaluation side for determining tobacco mellowing warehouse peculiar smell
Method.
Background technique
The moisture absorption of tobacco leaf, odor-absorbing are stronger, be easy influenced by external environment, for ensure tobacco leaf 2-3 alcoholization quality,
Therefore tobacco mellowing storage environment wants odorless tasteless." tobacco and tobacco product warehouse are set tobacco business standard YC/T 205-2006
Meter specification " it is provided just for the architectural design of tobacco warehouse, but warehouse environment peculiar smell is required not relevant
Standard.Although national standard GB 50325-2013 " code for indoor environmental pollution control of civil building engineering " is to indoor environmental pollution object
(radon, formaldehyde, benzene, ammonia and TVOC) limitation concentration is provided, but tobacco leaf hygroscopicity is strong, and the smell substance in finishing environment is all
Quality of tobacco can be affected, the tobacco leaf warehouse of current each cigarette enterprise is subject to self-built and is leased, and whether tobacco leaf warehouse has
Peculiar smell, nose of being mainly subject to are heard, and scientific and effective cannot be evaluated tobacco leaf warehouse peculiar smell.
Summary of the invention
For currently without the evaluation method to tobacco mellowing warehouse peculiar smell, the present invention provides a kind of tobacco mellowing warehouses
The evaluation method of peculiar smell provides guarantor by this method to the scientific and effective evaluation of tobacco mellowing warehouse for tobacco mellowing quality
Barrier.
To achieve the above object, a kind of evaluation method determining tobacco mellowing warehouse peculiar smell provided by the invention, including such as
Lower step:
Step 1, test specimen prepare, and the first-class tobacco leaf in middle part for choosing the sound tobacco producing region for refining 1 year is test sample
Product；
Step 2 is refined and is selected between warehouse storehouse, if design standard is identical between alcoholization warehouse storehouse, randomly selects between 1 storehouse
Test；
If design standard is different between alcoholization warehouse storehouse, it is both needed to select at random between the storehouse of various criterion between 1 storehouse and is tested；
Step 3, test specimen are placed, and test specimen is weighed to equiponderant several pieces respectively, wherein 1 part of conduct pair
In the same old way, it is stored in normal warehouse, so-called normal warehouse, that is, free from extraneous odour has stored the warehouse of tobacco leaf.By remaining test specimen
Different location between alcoholization warehouse storehouse to be evaluated is placed on according to certain location mode, the test specimen of each position, which shakes loose, to be placed in
Exposed storage on plastic film；
Step 4 controls the interior environment temperature and humidity in storehouse, and according to temperature and humidity situation between curing requirements record storehouse；
Step 5, sampling, each storage position is intended to individually sample, and each storage position is according to 5 point samplings, so-called
5 point samplings uniformly grab on the center for the plastic film for shaking loose test specimen and this 5 points of quadrangle a certain amount of respectively
Test specimen divides equally two parts after mixing, a test specimen is used for interior for being melted into composition measurement, a test specimen after rolling
Matter sensory evaluation；
Step 6, test specimen evaluation, test specimen place several days, are once evaluated every the sampling of certain number of days；
Evaluation content includes chemical component, tobacco leaf chemical composition and tobacco leaf endoplasm sense organ three parts between storehouse；
It includes radon, formaldehyde, benzene, TVOC, ammonia that composition detection is melted between storehouse；Chemical component detection method is referring to national standard between storehouse
" public places sanitary method of inspection part 2: chemical pollutant " (GB/T 18204.2-2014)；
It includes formaldehyde, acetaldehyde that tobacco leaf, which is melted into composition detection,；
For tobacco leaf endoplasm sense organ mainly by the way of sensory evaluating smoking, primary evaluation whether there is the peculiar smell having except tobacco leaf；
Endoplasm sense organ carries out overall merit, and records appraisal result by 3 people's composition described above evaluation group；
Step 7, comprehensive judgement, sensory evaluation and chemical component determine equal free from extraneous odour between storehouse, then determine the alcoholization warehouse without
Peculiar smell；Sensory evaluation and chemical component determine there is peculiar smell between storehouse, then determine that there is peculiar smell in the alcoholization warehouse.
Further, the sound tobacco producing region selection Yunnan and Sichuan province in the step 1.
Further, in the step 3, test specimen weighs equiponderant 6 parts, and 1 part is used as control sample, normal
It is stored in warehouse；Remaining 5 parts, according to 5 distributions, the surrounding being evenly arranged between storehouse and center, while meeting sample
It is placed for solid, i.e., center sample is placed in ground, and surrounding position is respectively placed in 1 case height, 2 case height, 3 case height, 4
On the high spatial position of case.
Preferably, in the step 4, temperature is controlled at 10 DEG C~30 DEG C, and humid control is 55%~65%.
Preferably, in the step 6, test specimen is placed 21 days, primary every sampling in 7 days.
Further, in the step 6, tobacco leaf is melted into ingredient formaldehyde and acetaldehyde test method is as follows:
Tobacco leaf test sample is cut into the fragment of about 0.5cm*0.5cm, is uniformly mixed；2g test tobacco leaf is weighed, is added
50mL water is uniformly mixed, and soak extraction for 24 hours, then pipettes 1.0mL supernatant liquor in 10mL volumetric flask under the conditions of 40 DEG C,
Acetonitrile constant volume is used after 4mL derivatization reagent is added, 30min is placed at room temperature for after shaking up and performs the derivatization, through 0.45 μm of organic filter membrane
After filtering, HPLC analysis is carried out；
The preparation of derivatization reagent are as follows: accurately weigh 0.01g 2,4-dinitrophenylhydrazine in 100mL brown volumetric flask, essence
Really to 0.1mg, acetonitrile constant volume is used after 5mL phosphoric acid is added.
Further, in the step 6 and step 7, chemical component and sensory evaluation determine；
It is melted into ingredient between storehouse and is determined that any index then determines there is peculiar smell between storehouse beyond limit standard, otherwise according to table 1
Free from extraneous odour between the storehouse；
Composition detection criterion is melted between 1 storehouse of table
Tobacco leaf chemical composition is determined according to table 2, if formaldehyde, methylene chloride, 1,2- dichloroethanes, benzene, butane, isobutyl
Alkane, metering system, carbon tetrachloride, bromochloromethane any one content of material exceed limit standard, then determine that there is peculiar smell in the warehouse,
Otherwise the warehouse free from extraneous odour；
2 tobacco leaf of table is melted into composition detection criterion (mg/kg)
| Index | Formaldehyde | Acetaldehyde |
| Limit standard | 1.5 | 1.8 |
If the first sub-sampling sensory evaluation has peculiar smell, evaluating warehouse has peculiar smell；If the first sub-sampling free from extraneous odour, examination
Test sample and continue storage to 21 days, carry out second and third time evaluate, similarly second, the evaluation of third sub-sampling have peculiar smell,
Then evaluating warehouse has peculiar smell, if equal free from extraneous odour between three sub-samplings evaluation storehouse, determines warehouse free from extraneous odour.
The invention has the advantages that:
The present invention comprehensively considers the placement and selection of the interior test specimen in storehouse in alcoholization warehouse, by the way that reasonable operation is arranged
Step, selects whether suitable evaluation method has peculiar smell scientifically to be evaluated in alcoholization warehouse.
Detailed description of the invention
Fig. 1 is invention overall step schematic diagram；
Specific embodiment
The technical solution in the present invention is clearly and completely described below in conjunction with specific embodiment.
Embodiment 1, using one of present invention determine tobacco mellowing warehouse peculiar smell evaluation method to a certain warehouse into
Row peculiar smell determines.
Yunnan C2F grade tobacco leaf in 2017 is chosen as test tobacco leaf.
Between evaluation warehouse there are 8 storehouses, because design standard is identical between each storehouse, randomly selects and tested between 1 storehouse.
Yunnan C2F in 2017 is weighed 18 kilograms, and is divided into 6 parts, 3 kilograms every part.1 part is used as control sample, just
It is stored in Chang Cangku.Remaining 5 parts, according to 5 distributions, the surrounding being evenly arranged between storehouse and center, while meeting sample
Product are three-dimensional placement, i.e., center sample is placed in ground, and surrounding position is respectively placed in 1 case height, 2 case height, 3 case height, 4
On the high spatial position of a case, sample is placed in exposed storage on plastic film.Space layer is built using wood pallets, meets sample
Solid is placed.
During test specimen is placed, according to tobacco conservation mode, guarantee the environment of temperature and humidity between storehouse.Recorded tobacco leaf storage
Period, temperature and humidity stability between storehouse, temperature are 12-15 DEG C, humidity 55-60%.
Between storehouse chemical component detection radon, formaldehyde, benzene, ammonia, TVOC content within limit standard, then determine the warehouse without
Peculiar smell, detection record are shown in Table 3.
Tobacco leaf chemical composition detects formaldehyde, acetaldehyde all within limit standard, then determines the warehouse free from extraneous odour, detects
Record is shown in Table 4.
Endoplasm sensory evaluation places 7 days, 14 days, three sub-samplings evaluation in 21 days according to test specimen, and endoplasm sense organ is different
Taste then determines that the warehouse free from extraneous odour, evaluation record are shown in Table 5-7.
Chemical component testing result between 3 storehouse New Warehouse A303 of table
4 tobacco leaf chemical composition testing result (mg/kg) of table
Tobacco leaf peculiar smell sensory quality assessment between 5 storehouse New Warehouse A303 of table
| Grade | Time | Sample situation | Resting period | Ocular estimate |
| Yunnan C2F | 2017 | Control | 7 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | One layer of northwest corner | 7 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Two layers of southwest corner | 7 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Three layers of southeast corner | 7 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Four layers of southwest corner | 7 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Center bottom | 7 days | Sensory quality assessment is without obvious peculiar smell |
Appraiser: evaluation time: date
Tobacco leaf peculiar smell sensory quality assessment between 6 storehouse New Warehouse A303 of table
| Grade | Time | Sample situation | Resting period | Ocular estimate |
| Yunnan C2F | 2017 | Control | 14 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | One layer of northwest corner | 14 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Two layers of southwest corner | 14 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Three layers of southeast corner | 14 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Four layers of southwest corner | 14 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Center bottom | 14 days | Sensory quality assessment is without obvious peculiar smell |
Appraiser: evaluation time: date
Tobacco leaf peculiar smell sensory quality assessment between 7 storehouse New Warehouse A303 of table
| Grade | Time | Sample situation | Resting period | Ocular estimate |
| Yunnan C2F | 2017 | Control | 21 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | One layer of northwest corner | 21 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Two layers of southwest corner | 21 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Three layers of southeast corner | 21 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Four layers of southwest corner | 21 days | Sensory quality assessment is without obvious peculiar smell |
| Yunnan C2F | 2017 | Center bottom | 21 days | Sensory quality assessment is without obvious peculiar smell |
Appraiser: evaluation time: date
Claims (7)
1. a kind of evaluation method for determining tobacco mellowing warehouse peculiar smell, it is characterised in that: include the following steps,
Step 1, test specimen prepare, and the first-class tobacco leaf in middle part for choosing the sound tobacco producing region for refining 1 year is test specimen；
Step 2 is refined and is selected between warehouse storehouse, if design standard is identical between alcoholization warehouse storehouse, randomly selects and test between 1 storehouse；
If design standard is different between alcoholization warehouse storehouse, it is both needed to select at random between the storehouse of various criterion between 1 storehouse and is tested；
Step 3, test specimen are placed, and test specimen is weighed to equiponderant several pieces respectively, wherein 1 part is used as control sample,
Stored in normal warehouse, by remaining test specimen according to certain location mode be placed on alcoholization warehouse storehouse between different location, often
The test specimen of a position, which shakes loose, is placed in exposed storage on plastic film；
Step 4 controls the interior environment temperature and humidity in storehouse in a certain range, and wet according to temperature between curing requirements record storehouse
Spend situation；
Step 5, sampling, each storage position are intended to individually sample, and each storage position is uniformly grabbed according to 5 point samplings
A certain amount of test specimen divides equally two parts after mixing, for being melted into composition measurement, a test specimen rolls a test specimen
It is used for endoplasm sensory evaluation afterwards；
Step 6, test specimen evaluation, test specimen place several days, are once evaluated every the sampling of certain number of days；
Evaluation content includes chemical component, tobacco leaf chemical composition and tobacco leaf endoplasm sense organ three parts between storehouse；
It includes radon, formaldehyde, benzene, TVOC, ammonia that composition detection is melted between storehouse；Chemical component detection method is " public referring to national standard between storehouse
Place sanitary inspection method part 2: chemical pollutant " (GB/T 18204.2-2014)；
It includes formaldehyde, acetaldehyde that tobacco leaf, which is melted into composition detection,；
For tobacco leaf endoplasm sense organ mainly by the way of sensory evaluating smoking, primary evaluation whether there is the peculiar smell having except tobacco leaf；Endoplasm
Sense organ carries out overall merit, and records appraisal result by 3 people's composition described above evaluation group；
Step 7, comprehensive judgement, sensory evaluation and chemical component determine equal free from extraneous odour between storehouse, then determine that the alcoholization warehouse is no different
Taste；Sensory evaluation and chemical component determine there is peculiar smell between storehouse, then determine that there is peculiar smell in the alcoholization warehouse.
2. a kind of evaluation method for determining tobacco mellowing warehouse peculiar smell according to claim 1, it is characterised in that: step
Sound tobacco producing region selection Yunnan and Sichuan province in rapid one.
3. a kind of evaluation method for determining tobacco mellowing warehouse peculiar smell according to claim 1, it is characterised in that: institute
It states in step 3, test specimen weighs equiponderant 6 parts, and 1 part is used as control sample, stores in normal warehouse；Remaining 5 parts,
According to 5 distributions, the surrounding being evenly arranged between storehouse and center, while meeting sample for three-dimensional placement, i.e. centre bit
It sets sample and is placed in ground, surrounding position is respectively placed on the high spatial position of 1 case height, 2 case height, 3 case height, 4 casees.
4. a kind of evaluation method for determining tobacco mellowing warehouse peculiar smell according to claim 1, it is characterised in that: institute
It states in step 4, temperature is controlled at 10 DEG C~30 DEG C, and humid control is 55%~65%.
5. a kind of evaluation method for determining tobacco mellowing warehouse peculiar smell according to claim 1, it is characterised in that: institute
It states in step 6, test specimen is placed 21 days, primary every sampling in 7 days.
6. a kind of evaluation method for determining tobacco mellowing warehouse peculiar smell according to claim 5, it is characterised in that: institute
It states in step 6, tobacco leaf is melted into ingredient formaldehyde and acetaldehyde test method is as follows:
Tobacco leaf test sample is cut into the fragment of about 0.5cm*0.5cm, is uniformly mixed；2g test tobacco leaf is weighed, 50mL water is added,
It is uniformly mixed, soak extraction for 24 hours, then pipettes 1.0mL supernatant liquor in 10mL volumetric flask under the conditions of 40 DEG C, and 4mL is added
Acetonitrile constant volume is used after derivatization reagent, is placed at room temperature for 30min after shaking up and is performed the derivatization, after 0.45 μm of organic membrane filtration,
Carry out HPLC analysis；
The preparation of derivatization reagent are as follows: accurately weigh 0.01g 2,4-dinitrophenylhydrazine in 100mL brown volumetric flask, be accurate to
0.1mg uses acetonitrile constant volume after 5mL phosphoric acid is added.
7. a kind of evaluation method for determining tobacco mellowing warehouse peculiar smell according to claim 1, it is characterised in that: institute
It states in step 6 and step 7, chemical component and sensory evaluation determine；
It is melted into ingredient between storehouse and is determined that any index then determines there is peculiar smell between storehouse beyond limit standard, otherwise the storehouse according to table 1
Between free from extraneous odour；
Composition detection criterion is melted between 1 storehouse of table
Tobacco leaf chemical composition determined according to table 2, if formaldehyde, methylene chloride, 1,2- dichloroethanes, benzene, butane, iso-butane,
Metering system, carbon tetrachloride, bromochloromethane any one content of material exceed limit standard, then determine that there is peculiar smell in the warehouse, no
The then warehouse free from extraneous odour；
2 tobacco leaf of table is melted into composition detection criterion (mg/kg)
If the first sub-sampling sensory evaluation has peculiar smell, evaluating warehouse has peculiar smell；If the first sub-sampling free from extraneous odour, test sample
Product continued storage to 21 days, carry out second and third time evaluate, similarly second, the evaluation of third sub-sampling have peculiar smell, then comment
There is peculiar smell in valence warehouse, if equal free from extraneous odour between three sub-samplings evaluation storehouse, determines warehouse free from extraneous odour.
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2019
- 2019-09-11 CN CN201910857885.XA patent/CN110501465A/en active Pending
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| 王丁众等: "UPLC-HRMS法测定无烟气烟草制品中的小分子醛", 《烟草科技》 * |
| 贺春霞等: "高效液相色谱法同时测定烟用水基胶中的甲醛和乙醛", 《分析试验室》 * |
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