CN106174671A - A kind of bulk curing barn deepens tobacco leaf color baking process - Google Patents
A kind of bulk curing barn deepens tobacco leaf color baking process Download PDFInfo
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- CN106174671A CN106174671A CN201510220576.3A CN201510220576A CN106174671A CN 106174671 A CN106174671 A CN 106174671A CN 201510220576 A CN201510220576 A CN 201510220576A CN 106174671 A CN106174671 A CN 106174671A
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Abstract
The invention discloses a kind of bulk curing barn and deepen tobacco leaf color baking process, based on three-phase-drying for tobacco technique, it is critical only that changing yellow stage and the wet bulb temperature conservative control in fixation stage each dry-bulb temperature stage, reach Nicotiana tabacum L. flavescence to coordinate mutually with dehydration, how orange cured tobacco leaf is, colourity is full, and color is substantially deepened.
Description
Technical field
The invention belongs to flue-cured tobacco modulation technique, relate to bulk curing barn method for flue-curing tobacco leaves.
Background technology
Traditional flue-curing barn uses air-flow nature ascensional ventilation dehumidifying, and in barn, air velocity is low, and dehumidifying speed is slow.Past general hothouse baking Nicotiana tabacum L., by raising dry-bulb temperature promotion moisture content in leaves evaporation after Nicotiana tabacum L. turns yellow, and increase ventilation by opening hole in the ground and skylight stronger ventilation area, accelerate tobacco curing barn inner air flow, reduce barn humidity, promote Nicotiana tabacum L. fixation and be dried.Cross a baking process and often cause Nicotiana tabacum L. fixation difficulty because temperature height dehumidifying is slow, roasting grain miscellaneous, roasting occurs.
Bulk curing barn uses forced ventilation dehumidifying, and in barn, air velocity is higher than traditional flue-curing barn, and after easily making flavescence, tobacco leaf surface moisture rapid evaporation reduces moisture, Nicotiana tabacum L. fixation and fast drying.In tobacco-leaf baking process, many tobacco growers or technician are still accustomed to the tobacco flue-curing method of the traditional flue-curing barn of continuing to use over, and be rapidly heated after Nicotiana tabacum L. turns yellow dehumidifying, promote Nicotiana tabacum L. fixation and are dried, convert change further at material in making Nicotiana tabacum L. suppressed, cause cured tobacco leaf color the lightest.
Changing yellow stage makes Nicotiana tabacum L. fully turn yellow can avoid roasting green grass or young crops, bulk curing barn often takes high temperature moisturizing to turn yellow (i.e. promoting under the conditions of higher dry-bulb temperature and wet bulb temperature that Nicotiana tabacum L. turns yellow) to improve Nicotiana tabacum L. yellowing degree in baking process, but high temperature moisturizing flavescence easily causes Nicotiana tabacum L. and excessively turns yellow, being rapidly heated and dehumidifying fixation after Nicotiana tabacum L. turns yellow, cured tobacco leaf is the lightest.
Along with the popularization and application of bulk curing barn, Nicotiana tabacum L. is baked bad phenomenon and is greatly reduced, but the lightest problem of cured tobacco leaf color is the most prominent.
The present invention provides a kind of bulk curing barn to deepen tobacco leaf color baking process, by the conservative control of wet bulb temperature to reach to deepen tobacco leaf color purpose in Tobacco Leaf Curing, improves baking quality of tobacco.
Summary of the invention
The present invention provides a kind of bulk curing barn to deepen tobacco leaf color baking process, as follows based on three-phase-drying for tobacco technique, major parameter and technique:
1 one kinds of bulk curing barns of table deepen tobacco leaf color baking process
Main Basis of the present invention is: Nicotiana tabacum L. color in baking process there occurs by the change of green flavescence, and this is mainly chlorophyll degradation and flavochrome (carotenoid etc.) content ratio increases, and when flavochrome is higher with chlorophyll ratio, tobacco leaf color presents yellow.Changing yellow stage chlorophyll degradation is faster than flavochrome, when Nicotiana tabacum L. turns yellow excessively, and Yellow pigment content ratio declines, and tobacco leaf color is the lightest.The browning reaction of flavescence later stage and fixation stage makes tobacco leaf color deepen, when the too fast browning reaction of Nicotiana tabacum L. dehydration is suppressed, and tobacco leaf color is difficult to deepen.Therefore, the baking process deepening tobacco leaf color it is critical only that changing yellow stage and the conservative control of fixation stage each dry-bulb temperature stage wet bulb temperature, makes Nicotiana tabacum L. reach flavescence and coordinates mutually with dehydration.The various descriptions of Nicotiana tabacum L. yellowing degree and desiccation are according to general knowledge known in those skilled in the art, including " wilting fall down ", " little reel " and " parent roll " etc. of " several become Huang ", " pornographic movie blue veins " of described yellowing degree and desiccation.
For the method for flue-curing tobacco leaves that the checking present invention provides further, select flue-cured tobacco cultivars K326 and cloud and mist 87 middle leaf, the method for flue-curing tobacco leaves being respectively adopted the present invention carries out tobacco flue-curing with tradition method for flue-curing tobacco leaves (three sections of five-step baking process) for compareing, and uses chromatism method to compare the color distortion of cured tobacco leaf.
Chromatism measurement method: to compare baking process cured tobacco leaf as standard, use color difference meter (model JZ-300) to measure tobacco sample color L(of two kinds of baking process bright dark), a(red green) and b(champac) value, and aberration △ L, △ a, △ b and total color difference △ E value (automatically being calculated by color difference meter), measure more than 30 points and average.
Comparison technological parameter feature and goal task are as follows:
(1) flavescence early stage: dry-bulb temperature 38～40 DEG C: 1 DEG C/h of heating rate, wet bulb temperature 38～40 DEG C.Adding by the heating rate of 1 DEG C/h after dry-bulb temperature being risen to 36 DEG C after on fire and dry-bulb temperature is risen to 38 DEG C, wet bulb temperature rises to 38 DEG C, and 10～12h, Nicotiana tabacum L. flavescence 3～4 one-tenth；Dry-bulb temperature rises to 40 DEG C, wet bulb temperature 40 DEG C, and 16～18h, it is yellow to 7～8 one-tenth that Nicotiana tabacum L. reaches flavescence, master pulse deliquescing.
(2) turning yellow the later stage: dry-bulb temperature 42～45 DEG C: 1 DEG C/h of programming rate, dry-bulb temperature rises to 42 DEG C, wet bulb temperature 38～37 DEG C, and 18～20h, Nicotiana tabacum L. flavescence 8～9 one-tenth, blade is wilting to fall down；Dry-bulb temperature rises to 45 DEG C, wet bulb temperature 37 DEG C, and 10～12h, Nicotiana tabacum L. reaches little reel.
(3) Earlier stage of fixing color: dry-bulb temperature 46～48 DEG C: 1 DEG C/h of heating rate, wet bulb temperature 38 DEG C, 20～24h.Cigarette muscle bleaches more than 2/3, Nicotiana tabacum L. parent roll.
(4) the fixation later stage: dry-bulb temperature 52～54 DEG C: wet bulb temperature 40～41 DEG C, 1 DEG C/h of heating rate, 18～24h.The basic dry tablet of tobacco leaf, cigarette muscle is dried more than 1/3.
(5) drying muscle stage: dry-bulb temperature 60～68 DEG C, heating rate 1～2 DEG C/h, wet bulb temperature 41～42 DEG C, more than 24h, Nicotiana tabacum L. is all dried.
Cured tobacco leaf chromatism measurement result: use method for flue-curing tobacco leaves cured tobacco leaf of the present invention and compare, K326 kind and the L-value of cloud and mist 87 two kind cured tobacco leafs of kind and a value are above comparison, and b value is below comparison.Aberration △ L, △ a and △ b be respectively the most secretly, the reddest and partially blue.△ E value respectively reaches 4.1 and 4.0, and aberration visual experience reaches " sensation is clearly " (see Table 2).Two kinds of method for flue-curing tobacco leaves contrasts show, how orange the method for flue-curing tobacco leaves cured tobacco leaf using the present invention is, and colourity is full, and tobacco leaf color is substantially deepened.
The Lab value of 2 two kinds of method for flue-curing tobacco leaves contrast cured tobacco leafs of table and value of chromatism
Note: △ L ,+it is worth for the brightest ,-be worth for the darkest；△ a ,+it is worth for the reddest ,-be worth for the greenest；△ b ,+it is worth for partially yellow ,-be worth for partially blue.△ E value is bigger aberration in 3～6 intervals, and visual experience is for sensation clearly.
Detailed description of the invention
The present invention provides a kind of bulk curing barn to deepen tobacco leaf color baking process, and based on three-phase-drying for tobacco technique, detailed description of the invention is as follows:
(1) flavescence early stage: dry-bulb temperature 36～38 DEG C.After on fire, dry-bulb temperature being risen to 36 DEG C, wet bulb temperature rises to 36 DEG C, and 4～6h, reach full flue-cured tobacco thermally equivalent；By the heating rate of 1 DEG C/h, dry-bulb temperature being risen to 38 DEG C, wet bulb temperature rises to 38 DEG C, steady temperature 12～18h, Nicotiana tabacum L. deliquescing, flavescence 5～6 one-tenth.
(2) turning yellow mid-term: dry-bulb temperature 40 DEG C, 1 DEG C/h of heating rate, wet bulb temperature 39 DEG C keeps 10～12h, and wet bulb temperature is down to 38 DEG C and is kept 10～12h.Tobacco leaf deliquescing, flavescence 7～8 one-tenth.
(3) turn yellow the later stage: dry-bulb temperature 42 DEG C, 1 DEG C/h of heating rate, wet bulb temperature 39～38 DEG C.Dry-bulb temperature rises to 42 DEG C, and wet bulb temperature rises to 39 DEG C, steady temperature 12～18h；Wet bulb temperature is down to 38 DEG C, and 12～18h.Nicotiana tabacum L. turns yellow 8～9 one-tenth (i.e. reaching pornographic movie blue veins), and blade is wilting to fall down.
(4) Earlier stage of fixing color: dry-bulb temperature 43～45 DEG C, 1 DEG C/h of heating rate, wet bulb temperature 37 DEG C, 16～18h.Nicotiana tabacum L. blade tip and leaf margin start to be dried.
(5) fixation mid-term: dry-bulb temperature 46～48 DEG C, 1 DEG C/h of heating rate, wet bulb temperature rises to 38 DEG C, and 20～24h.The little reel of Nicotiana tabacum L., cigarette muscle bleaches more than 2/3.
(6) the fixation later stage: dry-bulb temperature 50～54 DEG C, 1 DEG C/h of heating rate, wet bulb temperature 40～41 DEG C.Wherein extend dry-bulb temperature 52 DEG C (the wet bulb temperature 41 DEG C) time 12～16h.The basic dry tablet of Nicotiana tabacum L., parent roll, cigarette muscle is dried more than 1/3.
(7) drying muscle stage: dry-bulb temperature 60～68 DEG C, heating rate 1～2 DEG C/h, wet bulb temperature 41～42 DEG C, more than 24h.Nicotiana tabacum L. is all dried.
Claims (1)
1. the present invention relates to a kind of bulk curing barn and deepen tobacco leaf color baking technique, based on three-phase-drying for tobacco technique, each stage process parameter attribute and goal task are as follows:
(1) flavescence early stage
Technological parameter: dry-bulb temperature 36～38 DEG C, wet bulb temperature 36～38 DEG C, keep 16～24h；
Goal task: preheating Nicotiana tabacum L., makes Nicotiana tabacum L. turn yellow 5～6 one-tenth；
(2) turn yellow mid-term
Technological parameter: dry-bulb temperature 40 DEG C, wet bulb temperature 39～38 DEG C, keep 20～24h；
Goal task: Nicotiana tabacum L. flavescence 7～8 one-tenth, blade feels like jelly；
(3) turn yellow the later stage
Technological parameter: dry-bulb temperature 42 DEG C, wet bulb temperature 39～38 DEG C, keep 24～36h；
Goal task: Nicotiana tabacum L. flavescence 8～9 one-tenth, master pulse deliquescing, blade is wilting to fall down；
(4) Earlier stage of fixing color
Technological parameter: dry-bulb temperature 43～45 DEG C, wet bulb temperature 37 DEG C, keep 16～18h；
Goal task: Nicotiana tabacum L. blade tip leaf margin starts to be dried；
(5) fixation mid-term
Technological parameter: dry-bulb temperature 46～48 DEG C, wet bulb temperature 38 DEG C, keep 20～24h；
Goal task: the little reel of Nicotiana tabacum L., cigarette muscle bleaches more than 2/3；
(6) the fixation later stage
Technological parameter: dry-bulb temperature 50～54 DEG C, wet bulb temperature 40～41 DEG C, keep 20～24h；
Goal task: tobacco leaf substantially dry, parent roll, cigarette muscle exsiccation more than 1/3；
(7) drying muscle stage
Technological parameter: dry-bulb temperature 60～68 DEG C, wet bulb temperature 41～42 DEG C, more than 24h；
Goal task: Nicotiana tabacum L. is all dried.
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| CN201510220576.3A CN106174671A (en) | 2015-05-05 | 2015-05-05 | A kind of bulk curing barn deepens tobacco leaf color baking process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107836744A (en) * | 2017-11-17 | 2018-03-27 | 云南省烟草农业科学研究院 | A kind of steady wet flue-cured tobacco dense drying method heated |
| CN109691681A (en) * | 2019-01-23 | 2019-04-30 | 陈红华 | A kind of intensive baking process for baking soft roasting perfume for 87 tobacco leaf of cloud and mist |
| CN109875091A (en) * | 2019-04-19 | 2019-06-14 | 云南省烟草农业科学研究院 | It is a kind of to promote the baking method for heating novel tobacco perfume quantity of not burning and its application |
| CN113854615A (en) * | 2021-11-08 | 2021-12-31 | 湖北省烟草科学研究院 | Tobacco leaf baking method and application |
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| US3905123A (en) * | 1973-10-15 | 1975-09-16 | Industrial Nucleonics Corp | Method and apparatus for controlling a tobacco dryer |
| CN102178335A (en) * | 2011-03-18 | 2011-09-14 | 中国农业科学院烟草研究所 | Intensive curing barn precise curing process for flue-cured tobacco |
| CN103271428A (en) * | 2013-05-06 | 2013-09-04 | 广东省烟草南雄科学研究所 | Flue-cured tobacco accurate intensive curing technology for tobacco high-temperature induced maturity |
| CN103519338A (en) * | 2013-11-06 | 2014-01-22 | 广东中烟工业有限责任公司 | Three-stage type baking method |
| CN103689782A (en) * | 2014-01-08 | 2014-04-02 | 四川省烟草公司泸州市公司 | Roasting method of high-temperature droughty unripe tobacco leaves |
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2015
- 2015-05-05 CN CN201510220576.3A patent/CN106174671A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3905123A (en) * | 1973-10-15 | 1975-09-16 | Industrial Nucleonics Corp | Method and apparatus for controlling a tobacco dryer |
| CN102178335A (en) * | 2011-03-18 | 2011-09-14 | 中国农业科学院烟草研究所 | Intensive curing barn precise curing process for flue-cured tobacco |
| CN103271428A (en) * | 2013-05-06 | 2013-09-04 | 广东省烟草南雄科学研究所 | Flue-cured tobacco accurate intensive curing technology for tobacco high-temperature induced maturity |
| CN103519338A (en) * | 2013-11-06 | 2014-01-22 | 广东中烟工业有限责任公司 | Three-stage type baking method |
| CN103689782A (en) * | 2014-01-08 | 2014-04-02 | 四川省烟草公司泸州市公司 | Roasting method of high-temperature droughty unripe tobacco leaves |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107836744A (en) * | 2017-11-17 | 2018-03-27 | 云南省烟草农业科学研究院 | A kind of steady wet flue-cured tobacco dense drying method heated |
| CN109691681A (en) * | 2019-01-23 | 2019-04-30 | 陈红华 | A kind of intensive baking process for baking soft roasting perfume for 87 tobacco leaf of cloud and mist |
| CN109691681B (en) * | 2019-01-23 | 2021-11-12 | 湖北省烟草公司恩施州公司 | Intensive baking process for cloud 87 tobacco leaf baking soft baking aroma |
| CN109875091A (en) * | 2019-04-19 | 2019-06-14 | 云南省烟草农业科学研究院 | It is a kind of to promote the baking method for heating novel tobacco perfume quantity of not burning and its application |
| CN113854615A (en) * | 2021-11-08 | 2021-12-31 | 湖北省烟草科学研究院 | Tobacco leaf baking method and application |
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Application publication date: 20161207 |