CN104256880B - Quantitative evaluation method for easy-to-cure property of flue-cured tobacco - Google Patents
Quantitative evaluation method for easy-to-cure property of flue-cured tobacco Download PDFInfo
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- CN104256880B CN104256880B CN201410397227.4A CN201410397227A CN104256880B CN 104256880 B CN104256880 B CN 104256880B CN 201410397227 A CN201410397227 A CN 201410397227A CN 104256880 B CN104256880 B CN 104256880B
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
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Abstract
The invention discloses a quantitative evaluation method for the easy-to-cure property of flue-cured tobacco. The quantitative evaluation method comprises the following steps: loading fresh tobacco leaves which are normally ripe in different qualities into an electrothermal type humiture self-controlled tobacco curing box at the density of 70kg/m＜-3＞ and curing the fresh tobacco leaves according to a three-segment curing process; judging the easy-to-cure property of the tobacco leaves according to the ratio of carotenoid and chlorophyll in the last stage of yellowing during tobacco curing, wherein the judgment conditions are as follows: when the ratio of carotenoid and chlorophyll at the upper parts and the lower parts of leaves is more than 1.50, and the ratio of carotenoid and chlorophyll of the middle parts of the leaves is more than 2.30, the easy-to-cure property of the flue-cured tobacco leaves is relatively good; when the ratio of carotenoid and chlorophyll at the upper parts and the lower parts of leaves is 1.00-1.50 and the ratio of carotenoid and chlorophyll of the middle parts of the leaves is 2.00-2.30, the easy-to-cure property of the flue-cured tobacco leaves is medium; and when the ratio of carotenoid and chlorophyll at the upper parts and the lower parts of leaves is less than 1.00, and the ratio of carotenoid and chlorophyll of the middle parts of the leaves is less than 2.00, the easy-to-cure property of the flue-cured tobacco leaves is relatively bad. The quantitative evaluation method utilizes the relationship between the activity of polyphenol oxidase and the curing quality of tobacco leaves to evaluate the curing resistance of the tobacco leaves, is high in accuracy and good in repeatability, and reduces the experience demand on technical personnel.
Description
Technical field
The present invention relates to a kind of method for quantitatively evaluating of the easily roasting property of flue-cured tobacco, belong to flue-cured tobacco modulation field.
Background technology
The baking property of tobacco leaf refers to what tobacco leaf obtained during agronomy, itself whether easy intrinsic quality feature such as the flavescence that shows in baking process, dehydration, fixation, blackening.Tobacco flue-curing characteristic can be described with " easily baking property " and " resistance to roasting property "." easily baking property " main reflection tobacco leaf turns yellow in baking process, is dehydrated, fast, slow, difficult, the easy characteristic of fixation.Generally requiring not bery strict to temperature, damp condition in baking process it is easy to turning yellow, be easier to be dehydrated, color and luster being also easy to the fresh cigarette of fixation and is described as easily baking, otherwise is then difficult to bake.
In producing at present, mainly there are two kinds to the evaluation method of the easily roasting property of flue-cured tobacco, one kind is to judge baking property according to tobacco leaf quality, tobacco leaf soft texture, elasticity is not good, breakable, easily toasts, this mode is many to be compared generally based on sense organ and micro-judgment, not easy to operate；Another way is that in baking process, the situation of change according to tobacco leaf judges baking property, and such as blade tip first turns yellow, progressively to phyllopodium and master pulse extension, the moderate tobacco leaf of flavescence speed, and easily roasting property is good；Spot film is first yellow, gradually extends, first yellow leaf face, the rear yellow leaf back of the body, the slightly slow tobacco leaf of flavescence speed, illustrates that easily roasting property is slightly worse；Turned yellow slow or phyllopodium first Huang, belongs to black sudden and violent leaf or shade leaf, easily roasting property is poor more.Be given in method for determining flue-curing property of flue-cured tobacco as a kind of in Authorization Notice No. CN 102172296 B：Decision condition is as follows：Be 48～60h when lower tobacco leaf time that turns yellow, middle and upper part tobacco leaf turn yellow the time be 72h about when, show that the easily roasting property of tobacco leaf is good；It is more than 72h when the lower tobacco leaf browning time, the middle part tobacco leaf browning time is more than 120h, the upper tobacco leaf browning time is more than 60h, shows that the resistance to roasting property of tobacco leaf is preferable.This kind of mode gives by time and color as the standard judging, this case then reacts some quantization metrics evaluation tobacco flue-curing characteristics of baking of flue-cured tobacco characteristic.
Content of the invention
A kind of method for quantitatively evaluating of the easily roasting property of flue-cured tobacco, it is an object of the invention to solving deficiency of the prior art, is provided.
To achieve these goals, the technical solution being adopted is the present invention：A kind of method for quantitatively evaluating of the easily roasting property of flue-cured tobacco, step is as follows：
The first step：The fresh tobacco leaf of different quality normal matures is loaded in electrothermal humiture automatic control flue-cured tobacco case, smoke filling density is 70
kg·m-3, toasted according to three-phase-drying for tobacco technique；
Second step：According to later yellowing stage carotenoid in Tobacco Leaf Curing and chlorophyllous ratio, judge that tobacco leaf easily bakes property, decision condition is as follows：
Upper and lower portion leaf more than 1.50, middle part tobacco leaf more than 2.30, the easily roasting property of flue-cured tobacco cultivars is preferable；Upper and lower portion leaf 1.00～1.50, middle part tobacco leaf 2.00～2.30, the easily roasting property of flue-cured tobacco cultivars is medium；, below 1.00, below 2.00, the easily roasting property of flue-cured tobacco cultivars is poor for middle part tobacco leaf for upper and lower portion leaf.
The beneficial effect comprise that：Using carotenoid in baking process and chlorophyllous ratio, represent tobacco leaf yellowing degree, according to the class leaf ratio of later yellowing stage in Tobacco Leaf Curing, evaluate the easily roasting property of tobacco leaf more scientific.Compare with art methods, the shortcoming overcoming the resistance to roasting property of traditional sense organ micro-judgment flue-cured tobacco, the degree of accuracy is high, repeatability preferably, reduces the skill requirement to technical staff, can accurately judge that tobacco leaf easily bakes property.
Specific embodiment
Ripe fresh tobacco leaf to the different parts of 5 kinds in Shandong Province Zhucheng Jia Yue town experimental plot, takes the evaluation method of the present invention to be judged：
The ripe fresh tobacco leaf that harvesting Zhongyan-100, NC55, NC297, middle cigarette 203 and five kind bottoms of the big gold dollar of safflower, the normal growth at three positions in middle part and top are developed respectively is loaded in electrothermal humiture automatic control flue-cured tobacco case, and smoke filling density is 70 kg m-3, toasted according to three-phase-drying for tobacco technique；According to later yellowing stage carotenoid in Tobacco Leaf Curing and chlorophyllous ratio（I.e. class leaf ratio）, judge that tobacco leaf easily bakes property.Each concrete kind leaf ratio that processes is shown in Table 1.
Three position tobacco flue-curing later yellowing stage class leaf ratios of table 1 different cultivars
| Kind | Zhongyan-100 | NC55 | NC297 | Middle cigarette 203 | The big gold dollar of safflower |
| Inferior leads | 2.12 | 1.82 | 1.36 | 1.64 | 0.84 |
| Middle leaf | 2.68 | 2.30 | 2.20 | 2.40 | 1.52 |
| Upper leaf | 2.62 | 1.73 | 1.39 | 1.52 | 0.71 |
According to present invention determine that condition judges, result of determination is shown in Table 2 to the easily roasting property of each kind in table 1.Decision condition is：Upper and lower portion leaf more than 1.50, middle part tobacco leaf more than 2.30, the easily roasting property of flue-cured tobacco cultivars is preferable；Upper and lower portion leaf 1.00～1.50, middle part tobacco leaf 2.00～2.30, the easily roasting property of flue-cured tobacco cultivars is medium；, below 1.00, below 2.00, the easily roasting property of flue-cured tobacco cultivars is poor for middle part tobacco leaf for upper and lower portion leaf.
Table 2 different cultivars tobacco leaf easily bakes sex determination situation
| Kind | Zhongyan-100 | NC55 | NC297 | Middle cigarette 203 | The big gold dollar of safflower |
| Easily bake property | Preferably | Preferably | Medium | Preferably | Poor |
In order to verify the accuracy present invention determine that result, separately harvest above-mentioned five kind bottoms, the normal growth at three positions in middle part and top tobacco leaf of reaching maturity is loaded in electrothermal humiture automatic control flue-cured tobacco case, smoke filling density is 70 kg m-3, toasted according to three-phase-drying for tobacco technique；Cured tobacco leaf is classified by GB, the results are shown in Table 2, table 3, table 4 and table 5.
Table 3 inferior leads different cultivars cured tobacco leaf presentation quality
Table 4 middle leaf different cultivars cured tobacco leaf presentation quality
Table 5 upper leaf different cultivars cured tobacco leaf presentation quality compares
Can analyze from table 3, table 4 and table 5 and find out：
NC55, Zhongyan-100 and middle cigarette 203 kind cured tobacco leaf tobacco group content are big, and blue or green cigarette group content is little, illustrate that its easily roasting property is preferable.
NC297 kind cured tobacco leaf tobacco group content is medium, blue or green cigarette group large percentage, illustrates that its easily roasting sex expression is general.
Hongda cured tobacco leaf tobacco group content is medium, and blue or green cigarette group content is big, illustrates that its easily roasting property is poor.
Analyzed by above, by the inventive method, to different cultivars, easily roasting property is evaluated, fit like a glove with each kind cured tobacco leaf presentation quality characteristic, than the easily roasting property having reacted tobacco leaf, this explanation class leaf is more complete than method can be used as the evaluation method of the easily roasting property of flue-cured tobacco for the class leaf of baking later yellowing stage.
Described above is not limitation of the present invention, and the present invention is also not limited to the example above, change, remodeling, interpolation or replacement that those skilled in the art are made in the essential scope of the present invention, also should belong to protection scope of the present invention.
Claims (1)
1. a kind of method for quantitatively evaluating of the easily roasting property of flue-cured tobacco is it is characterised in that step is as follows：
The first step：The fresh tobacco leaf of different quality normal matures is loaded in electrothermal humiture automatic control flue-cured tobacco case, smoke filling density is 70 kg m-3, toasted according to three-phase-drying for tobacco technique；
Second step：According to later yellowing stage carotenoid in Tobacco Leaf Curing and chlorophyllous ratio, judge that tobacco leaf easily bakes property, decision condition is as follows：
Upper and lower portion leaf more than 1.50, middle part tobacco leaf more than 2.30, the easily roasting property of flue-cured tobacco cultivars is preferable；Upper and lower portion leaf 1.00～1.50, middle part tobacco leaf 2.00～2.30, the easily roasting property of flue-cured tobacco cultivars is medium；, below 1.00, below 2.00, the easily roasting property of flue-cured tobacco cultivars is poor for middle part tobacco leaf for upper and lower portion leaf.
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| CN201410397227.4A CN104256880B (en) | 2014-08-14 | 2014-08-14 | Quantitative evaluation method for easy-to-cure property of flue-cured tobacco |
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| CN201410397227.4A CN104256880B (en) | 2014-08-14 | 2014-08-14 | Quantitative evaluation method for easy-to-cure property of flue-cured tobacco |
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| CN104256880B true CN104256880B (en) | 2017-02-08 |
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| CN109993413B (en) * | 2019-03-04 | 2021-04-23 | 中国地质大学（武汉） | Data-driven flue-cured tobacco quality benefit comprehensive evaluation method and system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5339176A (en) * | 1976-09-22 | 1978-04-10 | Omron Tateisi Electronics Co | Measuring method for yellowed degree of tobacco leaf |
| JPS6242036A (en) * | 1985-08-19 | 1987-02-24 | Yunisoku:Kk | Yellowing degree detecting device for leaf tobacco |
| CN102172296B (en) * | 2011-03-18 | 2013-04-24 | 中国农业科学院烟草研究所 | Method for determining flue-curing property of flue-cured tobacco |
| CN103245620A (en) * | 2013-05-24 | 2013-08-14 | 贵州省烟草科学研究院 | Method for detecting yellowing degree of flue-cured tobacco leaves during curing process |
| CN103499526A (en) * | 2013-09-29 | 2014-01-08 | 贵州省烟草科学研究院 | Method for judging tobacco leaf yellowing degree and baking progress in tobacco backing and yellowing stage |
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