CN102239885A - Method for improving quality of tobacco leaf - Google Patents
Method for improving quality of tobacco leaf Download PDFInfo
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- CN102239885A CN102239885A CN2011101238329A CN201110123832A CN102239885A CN 102239885 A CN102239885 A CN 102239885A CN 2011101238329 A CN2011101238329 A CN 2011101238329A CN 201110123832 A CN201110123832 A CN 201110123832A CN 102239885 A CN102239885 A CN 102239885A
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- tobacco
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- tobacco leaves
- citric acid
- polyvinylpyrrolidone
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Abstract
The invention relates to a method for improving quality of tobacco leaves, and to be more accurately, to a method of applying an enzyme activity conditioning agent on pre-harvest tobacco leaves so as to improve quality of the tobacco leaves, belonging to the field of tobacco production. Specifically speaking, the method comprises the following steps: evenly mixing, dissolving and filtering one or more selected from the group consisting of polyvinylpyrrolidone (PVP), sodium diethyl dithiocarbamic acid (NaDiCa), ethylendiaminotetraacetic acid (EDTA), citric acid and sodium bisulfite to obtain an enzyme activity conditioning agent; applying the enzyme activity conditioning agent on filed tobacco leaves two times (with an interval being 7 days) by the method of spraying the agent on the front and back of the tobacco leaves before the tobacco leaves are harvested so as to obtain tobacco leaves with improved quality after the tobacco leaves are harvested. According to the invention, the color grade of the tobacco leaves is substantially improved, and exterior and aesthetic quality of the tobacco leaves and compatibility of chemical components in the tobacco leaves are enhanced; the cost of the enzyme activity conditioning agent provided in the invention is low, application of the agent in fields is simple, and the effect of the agent is stable.
Description
Technical field
The present invention relates to the tobacco production field, more precisely the cured tobacco leaf before gathering is applied a kind of activity regulator to improve the method for its quality.
Background technology
Chemical composition and the enzymic activity state of tobacco leaf plant in the precursor of gathering directly influences exterior quality and inherent quality after tobacco first baking and the redrying, and the alcoholization effect of tobacco leaf is played an important role.The content of polyphenol compound and tobacco leaf color grade have close ties in the tobacco leaf, and the tobacco leaf of same area is with the minimizing of polyphenol compound content, and tobacco leaf color is deepened, and is promptly lemon yellow＞orange＞reddish brown; Polyphenol compound and catabolite thereof are relevant with the fragrance of tobacco, it is a kind of material that produces the flue gas aromatic odor, form acidic components in the flue gas granule phase substance together with organic acid, the part that can neutralize alkalescence, make jealous pure and mild, the grade of it and tobacco product is proportionate, and the cigarette grade that polyphenol compound content is high is high more, and vice versa.Therefore, by the regulation and control polyphenol oxidase activity, reduce the enzymatic browning reaction, the over oxidation that can suppress polyphenol compound, the intensification that alleviates tobacco leaf color improves the tobacco leaf presentation quality, reduce consuming excessively of the inner chemical substance of tobacco leaf, improve inherent quality, and keep more fragrance precursor substance, improve quality of tobacco.Relevant by retrieval patent is found, 1. Chinese patent literature CN1723811 (200510010910.9) discloses a kind of additive for flue-cured tobacco and its production and application, this kind additive contains plurality of enzymes preparation and conditioning agent, and wherein every kind of enzyme to the requirement of pH value, temperature and moisture condition difference to some extent, so be difficult to guarantee that this additive plays best using most, and in this patent, the action time of not mentioned additive, this uses the key point of enzyme preparation as additive exactly; 2. Chinese patent literature CN1778210 (200410087655.3) discloses a kind of method of improving cigarette quality, this patent is by adding complex enzyme formulation to the tobacco leaf before refining, fundamentally changed the composition and the content of sugar in the tobacco, also the operative temperature of enzyme preparation and time and deactivation condition are described, but because effective object is the dry tobacco leaf before the alcoholization, water activity is lower, and the action effect of enzyme preparation reduces.
Summary of the invention
The purpose of this invention is to provide a kind of method that improves quality of tobacco, the activity regulator of this method is intended to suppress polyphenol oxidase activity, alleviates the tobacco leaf brown stain.
The object of the present invention is achieved like this: a kind of method that improves quality of tobacco applies a kind of activity regulator to improve quality of tobacco before gathering in the tobacco leaf land for growing field crops.
Above-mentioned activity regulator is the aqueous solution, and the solute in this aqueous solution is one or more in polyvinylpyrrolidone, sodium diethyldithiocarbamate, disodium salt, citric acid, the sodium hydrogensulfite.
The concentration of the various solutes in the above-mentioned aqueous solution is 0.1mmol/L～1mmol/L.
Above-mentioned applying method may further comprise the steps:
A) one or more of described solute are soluble in water, filter the back and use;
B) select weather fine, and gather and all do not have the date of strong wind and heavy rain in preceding 14 days and carry out the field and apply activity regulator;
C) selecting the flue-cured tobacco middle leaf of growing way homogeneous to carry out positive and negative sprays;
D) tobacco leaf that applies activity regulator is first sprayed after 7 days once more, gathered in 7 days at interval;
E), mend immediately and execute if the strong wind and heavy rain weather phenomenon occurs after applying activity regulator.
For avoiding the high request of processing with enzyme preparation to environmental condition, the present invention utilizes activity regulator to handle the activity that the tobacco leaf biological tissue is regulated polyphenol oxidase in the tobacco leaf, and low to environmental requirement, effect is remarkable.The metabolism of tobacco live body plant is vigorous before gathering, after applying, activity regulator infiltrates plant tissue faster, after gathering, because the influence of activity regulator, reduce the brown stain of tobacco leaf color in the bake process and the consumption of inherent chemical substance, improve quality of tobacco, and this prior art is not appeared in the newspapers.
Technical scheme of the present invention is based on that following understanding finishes: tobacco leaf is in the flavescence latter stage and the fixation stage of stage of modulating, polyphenol oxidase activity strengthens, by a series of physicochemical change, the contact of polyphenol oxidase enzyme-to-substrate is oxidized to quinones substance, in case the tobacco leaf brown stain takes place, polyphenols reduces more than 85%, therefore not only influence tobacco leaf color, and reduce tabacco fragrance precursor substance content, reduce quality of tobacco.By applying the tobacco leaf activity regulator in the preceding land for growing field crops of gathering, promptly one or more in PVP, NaDiCa, EDTA, citric acid, the sodium hydrogensulfite make it to penetrate into the tobacco leaf biological tissue, suppress polyphenol oxidase activity better, improve quality of tobacco.The present invention is by applying activity regulator to tobacco leaf before gathering, reduce the enzymatic browning reaction of tobacco leaf in modulated process, alleviate the intensification of tobacco leaf color, reduce the consumption of the inherent chemical substance of tobacco leaf and keep more fragrance precursor substance, thereby improve quality of tobacco.
Inventive point of the present invention is the applying method big Tanaka, reduce the enzymatic browning reaction of back tobacco leaf in modulated process of gathering, alleviate the intensification of tobacco leaf color, reduce the consumption of the inherent chemical substance of tobacco leaf and keep more fragrance precursor substance, thereby improve quality of tobacco.
Another inventive point of the present invention is the composition of activity regulator, be in polyvinylpyrrolidone (PVP), sodium diethyldithiocarbamate (NaDiCa), disodium salt (EDTA), citric acid, the sodium hydrogensulfite one or more, concentration is 0.1mmol/L～1mmol/L, the mass fraction of activity regulator material and water is the effective all proportions of regulatory enzyme activity of composition of its formation, and the pH value is solution self a pH value.
The invention has the beneficial effects as follows: before gathering, the tobacco leaf that is about to maturation is applied twice activity regulator and have the effect of good inhibition polyphenol oxidase, can alleviate the tobacco leaf color brown stain, keep more fragrance precursor, improve quality of tobacco; The preparation of this kind of enzyme active regulator is simple, and applying method is easy, effect stability.
Embodiment
The invention will be further described below in conjunction with embodiment, but they are not limitation of the invention.
Embodiment 1:
Activity regulator is: PVP concentration is 1mmol/L, and citric acid concentration is 0.5mmol/L.
PVP and citric acid are mixed, dissolve, filter, obtain supernatant liquid, concentration is respectively 1mmol/L and 0.5mmol/L, and the pH value is solution self a pH value.Selection weather is fine, and gathers and all do not have the date of strong wind and heavy rain in preceding 14 days and the flue-cured tobacco middle leaf of field growing way homogeneous is carried out positive and negative spray, and after 7 days, the tobacco leaf that applies activity regulator is first sprayed same activity regulator once more, gathers after 7.If the strong wind and heavy rain weather phenomenon occurs after applying activity regulator, mend immediately and execute.Being treatment samples after just roasting, is in the same old way after just roasting without the middle leaf of the growing way homogeneous that sprays.
1, observe the junior tobacco leaf treatment samples with to the situation of change of outward appearance and grade in the same old way, see Table 1.
Table 1
| Sample | Color | Gloss | Oil content | Grade distributes |
| To in the same old way | Orange | Still distinct | Have | / |
| Treatment samples | Lemon yellow | Distinct | Foot | Comparison improves 1～2 grade in the same old way |
2, observe treatment samples with to sensory evaluating smoking result's situation of change in the same old way, see Table 2.
Table 2
| Sample | Fragrance matter | Perfume quantity | Concentration | Excitant | Assorted gas | Pleasant impression | Strength | Flammability | Grey | Total points |
| To in the same old way | 5.5 | 5.5 | 6 | 5 | 5.5 | 5 | 6 | 6 | 8 | 52.5 |
| Treatment samples | 6 | 6 | 6 | 5.5 | 6 | 5 | 6 | 7 | 8 | 55.5 |
3, the analyzing and processing sample with to the situation of change of aldehydes matter before and after the baking in the same old way, see Table 3.
Table 3
| Aldehydes matter in the tobacco leaf | Situation of change |
| Chlorogenic acid | Increase by 20%～70% |
| Rutin | Increase by 20%～50% |
| Scopoletin | Increase by 10%～40% |
4, the analyzing and processing sample with to the situation of change of routine chemical components before and after the baking in the same old way, find that starch, protein, total reducing sugar, reducing sugar, pectin content difference are not remarkable.
From the above, cured tobacco leaf applies activity regulator and after just roasting before gathering, and on appearance luster, treatment samples compares that color is more shallow in the same old way, gloss is distinct, oil content is sufficient, 1～2 grade of grade raising.From sensory evaluating smoking result, the treatment samples comparison is being improved a lot aspect aroma quality, excitant, assorted gas and the flammability in the same old way.Analyze by the tobacco leaf routine chemical components, starch, protein, total reducing sugar, reducing sugar, pectin content difference are not remarkable, illustrate that the activity regulator that adds does not bring adverse effect to above-mentioned routine chemical components.
Embodiment 2:
Activity regulator is: PVP concentration is 1mmol/L, and NaDiCa concentration is 1mmol/L, and citric acid concentration is 0.5mmol/L.
PVP, NaDiCa and citric acid are mixed, dissolve, filter, obtain supernatant liquid, concentration is respectively 1mmol/L, 1mmol/L and 0.5mmol/L, and the pH value is solution self a pH value.The mode that applies is with embodiment 1.
Embodiment 3:
Activity regulator is: PVP concentration is 0.8mmol/L, and NaDiCa concentration is that 0.8mmol/L, EDTA concentration are that 0.8mmol/L, citric acid concentration are that 0.5mmol/L, concentration of sodium bisulphite are 0.5mmol/L.
PVP, NaDiCa, EDTA, citric acid and sodium hydrogensulfite are mixed, dissolve, filter, obtain supernatant liquid, concentration is respectively 0.8mmol/L, 0.8mmol/L, 0.8mmol/L, 0.5mmol/L and 0.5mmol/L, and the pH value is solution self a pH value.The mode that applies is with embodiment 1.
Although above embodiment has been carried out detailed discussion to the present invention, other embodiment also is possible, therefore, and the description that should not be limited to embodiment in the disclosure to the essence and the scope of claim.
Claims (8)
1. a method that improves quality of tobacco is characterized in that, applies a kind of activity regulator to improve quality of tobacco before gathering in the tobacco leaf land for growing field crops.
2. a kind of method that improves quality of tobacco according to claim 1, it is characterized in that, described activity regulator is the aqueous solution, and the solute in this aqueous solution is one or more in polyvinylpyrrolidone, sodium diethyldithiocarbamate, disodium salt, citric acid, the sodium hydrogensulfite.
3. a kind of method that improves quality of tobacco according to claim 2 is characterized in that the concentration of the various solutes in the described aqueous solution is 0.1mmol/L～1mmol/L.
4. according to claim 1 or 2 or 3 described a kind of methods that improve quality of tobacco, it is characterized in that described applying method may further comprise the steps:
A) one or more of described solute are soluble in water, filter the back and use;
B) select weather fine, and gather and all do not have the date of strong wind and heavy rain in preceding 14 days and carry out the field and apply activity regulator;
C) selecting the flue-cured tobacco middle leaf of growing way homogeneous to carry out positive and negative sprays;
D) tobacco leaf that applies activity regulator is first sprayed after 7 days once more, gathered in 7 days at interval;
E), mend immediately and execute if the strong wind and heavy rain weather phenomenon occurs after applying activity regulator.
5. a kind of method that improves quality of tobacco according to claim 4 is characterized in that described solute is polyvinylpyrrolidone and citric acid; Polyvinylpyrrolidone concentration is 1mmol/L in the described aqueous solution, and the concentration of citric acid is 0.5mmol/L.
6. a kind of method that improves quality of tobacco according to claim 4 is characterized in that described solute is polyvinylpyrrolidone, sodium diethyldithiocarbamate and citric acid; Polyvinylpyrrolidone concentration is 1mmol/L in the described aqueous solution, and sodium diethyldithiocarbamate concentration is 1mmol/L, and the concentration of citric acid is 0.5mmol/L.
7. a kind of method that improves quality of tobacco according to claim 4 is characterized in that described solute is polyvinylpyrrolidone, sodium diethyldithiocarbamate, disodium salt, citric acid and sodium hydrogensulfite; Polyvinylpyrrolidone concentration is 0.8mmol/L in the described aqueous solution, sodium diethyldithiocarbamate concentration is 0.8mmol/L, the concentration of disodium salt is 0.8mmol/L, and citric acid concentration is that 0.5mmol/L, concentration of sodium bisulphite are 0.5mmol/L.
8. a kind of method that improves quality of tobacco according to claim 4 is characterized in that described tobacco leaf is flue-cured tobacco, suncured tabacco or air-curing of tobacco leaves.
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| CN2011101238329A CN102239885A (en) | 2011-05-13 | 2011-05-13 | Method for improving quality of tobacco leaf |
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| CN2011101238329A CN102239885A (en) | 2011-05-13 | 2011-05-13 | Method for improving quality of tobacco leaf |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104839881A (en) * | 2015-05-05 | 2015-08-19 | 上海烟草集团有限责任公司 | Method for reducing polyphenol content in paper-making process sheet tobacco extract liquid |
| CN108703409A (en) * | 2018-04-20 | 2018-10-26 | 广西中烟工业有限责任公司 | A kind of nicotinic alcohol browning inhibitor solution manufacturing method and application |
| CN112586800A (en) * | 2020-12-03 | 2021-04-02 | 河南农业大学 | Cured tobacco modulation fixative and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319478C (en) * | 2005-07-13 | 2007-06-06 | 云南瑞升科技有限公司 | Additive for flue-cured tobacco, prepn. method and application thereof |
| CN100425171C (en) * | 2004-11-24 | 2008-10-15 | 中国科学院大连化学物理研究所 | Improvement of tobacco quality |
-
2011
- 2011-05-13 CN CN2011101238329A patent/CN102239885A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425171C (en) * | 2004-11-24 | 2008-10-15 | 中国科学院大连化学物理研究所 | Improvement of tobacco quality |
| CN1319478C (en) * | 2005-07-13 | 2007-06-06 | 云南瑞升科技有限公司 | Additive for flue-cured tobacco, prepn. method and application thereof |
Non-Patent Citations (4)
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| 中国农学会: "《中国青年农业科学学术年报(1997 A卷)》", 30 September 1997, 中国农业出版社 * |
| 李明: "抑制剂对PPO活性及烟叶烘烤效果影响的研究", 《中国优秀硕士学位论文全文数据库农业科技辑》 * |
| 李玉娥,等: "烤烟中多酚氧化酶促褐变反应抑制剂的筛选", 《烟草科技》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104839881A (en) * | 2015-05-05 | 2015-08-19 | 上海烟草集团有限责任公司 | Method for reducing polyphenol content in paper-making process sheet tobacco extract liquid |
| CN108703409A (en) * | 2018-04-20 | 2018-10-26 | 广西中烟工业有限责任公司 | A kind of nicotinic alcohol browning inhibitor solution manufacturing method and application |
| CN112586800A (en) * | 2020-12-03 | 2021-04-02 | 河南农业大学 | Cured tobacco modulation fixative and preparation method and application thereof |
| CN112586800B (en) * | 2020-12-03 | 2022-09-30 | 河南农业大学 | Cured tobacco modulation fixative and preparation method and application thereof |
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Address after: 610017 Jackie Chan Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, China, No. 2, No. Applicant after: China Tobacco Chuanyu Industrial Co., Ltd. Address before: 610017 Jackie Chan Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, China, No. 2, No. Applicant before: China Tobacco Chuanyu Industrial Corporation |
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Free format text: CORRECT: APPLICANT; FROM: CHINA TOBACCO CHUANYU INDUSTRIAL CORPORATION TO: CHINA TOBACCO CHUANYU INDUSTRIAL CO., LTD. |
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Application publication date: 20111116 |