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Qiao X.,CAS Zhengzhou Research Institute | Wang B.,CAS Zhengzhou Research Institute | Wu D.,China Tobacco Henan Industrial Co. | Fan J.,China Tobacco Fujian Industrial Co. | And 8 more authors.
Tobacco Science and Technology | Year: 2016

In order to investigate the aroma style characteristics of flue-cured tobacco in China, the type and intensity of aroma notes of tobacco samples collected from typical tobacco growing areas were evaluated and analyzed. The results showed that flue-cured tobacco in China presented eight categories of aroma style characteristics, namely, 1) Yunnan and Sichuan tobacco was characterized by hay-like scent, outstanding fresh-sweetness scent and distinct green scent. 2) Guizhou tobacco was characterized by hay-like scent and outstanding honeysweet scent. 3) Chongqing, Shaanxi, Hubei and Sangzhi (in Hunan) tobacco was characterized by hay-like scent and outstanding alcohol sweetness scent. 4)Henan tobacco was characterized by hay-like, burnt and baked scents, outstanding burnt-sweetness scent and perceivable resin scent. 5)Guiyang and Jianghua (in Hunan), Guangdong, Jiangxi and Anhui tobacco was characterized by hay-like, burnt and baked scents, outstanding burnt-sweetness scent and distinct alcohol sweetness scent. 6) Fujian tobacco was characterized by hay-like scent, outstanding fresh-sweetness scent, distinct honeysweet scent and perceivable flower scent. 7) Shandong tobacco was characterized by hay-like scent and outstanding burnt scent. 8) Heilongjiang and Inner Mongolia tobacco was characterized by hay-like scent and outstanding woody scent. © 2016, Editorial Office of Tobacco Science & Technology. All right reserved.


Ye X.,Henan Agricultural University | Liu H.,Henan Agricultural University | Meng Q.,Henan Agricultural University | Chen S.,China Tobacco Hunan Industrial Co. | And 4 more authors.
Tobacco Science and Technology | Year: 2013

To determine the composition characteristics of stalks of different tobaccos and provide a sound basis for intensive development and utilization of tobacco stalk, the routine chemical, mineral and amino acid portions in stalks of flue-cured, burley, sun-cured, oriental and Maryland tobacco growing in Hubei Province were analyzed and compared. The results showed that they differed obviously. The stalk of burley tobacco was richer in reduce sugar, total sugar and total nitrogen, but lower in C/N; the stalk of flue-cured tobacco was richer in Ca, K, Mg and amino acids; the stalk of sun-cured tobacco was richer in chlorine, cellulose and higher in C/N, but poorer in Ca and Zn; the stalk of oriental tobacco was richer in P, Zn and total nitrogen, but poorer in nicotine, chlorine, amino acids (except for NH3); the stalk of Maryland tobacco was richer in organic carbon, but poorer in reduce sugar, total sugar, K, B, Cu, Zn and cellulose.


Deng J.,Enshi Municipal Tobacco Company | Wang R.,Enshi Municipal Tobacco Company | Tan J.,Enshi Municipal Tobacco Company | Zhao X.,China Tobacco Hubei Industrial Co.
Acta Tabacaria Sinica | Year: 2013

Analysis of nutrient balance of tobacco field in Enshi was carried out. Result showed that: nitrogen was basically in equilibrium, while phosphorus and potassium were more than needed. Fertilization of Enshi tobacco-growing field should follow a principle of increasing nitrogenous fertilizer, stabilizing phosphate and potash fertilizer. Increasing topdressing ratio and the times, and cropping economic plants was suggested to improve nutrient utilization and reduce residue. Reducing chemical fertilizer input moderately can prevent soil acidification. Increasing organic fertilizer, especially manure, and applying tobacco straw bioorganic manure and green manures were proposed to realize tobacco-ecological nutrient circulation.


Qiao X.,CAS Zhengzhou Research Institute | Shen Y.,CAS Zhengzhou Research Institute | Ma Y.,China Tobacco Henan Industrial Co. | Wang B.,CAS Zhengzhou Research Institute | And 5 more authors.
Tobacco Science and Technology | Year: 2014

In order to investigate the aroma characteristics of flue-cured tobacco leaves of different flavor styles, the aroma characters and intensity of flue-cured tobacco leaf samples of robust, fresh and medium flavor styles collected from typical ecological zones at home and abroad were evaluated and analyzed. The results showed that on the basis of natural tobacco aroma (hay-like scent), burnt-sweetness, woody, burnt and spicy scents were the main aroma characteristics of robust flavor style flue-cured tobacco, particularly burnt-sweetness; on the basis of natural tobacco aroma (hay-like scent), fresh-sweetness, green, woody and spicy scents were the main aroma characteristics of fresh flavor style flue-cured tobacco, particularly fresh-sweetness; on the basis of natural tobacco aroma (hay-like scent), pure-sweetness, woody and spicy scents were the main aroma characteristics of medium flavor style flue-cured tobacco, particularly pure-sweetness.


Zheng F.,China Tobacco Hubei Industrial Co. | Li Y.,China Tobacco Hubei Industrial Co. | Liu D.,China Tobacco Hubei Industrial Co. | Zhang D.,CAS Zhengzhou Research Institute
Tobacco Science and Technology | Year: 2015

In order to quantitatively evaluate the distribution uniformity of casing on a single tobacco strip and the uniformity of casing process, the image of casing attached points on tobacco strip was processed by digital image processing technique, and a method for evaluating casing uniformity on tobacco strip based on image processing was established, wherein the variation coefficient of casing distribution was used to characterize the distribution uniformity of casing on a single strip and the variation coefficient of attached casing amount between strips was used to characterize the uniformity of casing process. The results of verification showed that the results evaluated by the developed method presented the same trend as did the results tested by industrial standard YC/T 353-2010, Casing Uniformity Measurement, and effectively characterized the variation of the casing process. © 2015, Editorial Office of Tobacco Science & Technology. All right reserved.


Luo C.,Tianjin University of Science and Technology | Wen Y.,Tianjin University of Science and Technology | Li W.,Tianjin University of Science and Technology | Li D.,Tianjin University of Science and Technology | And 2 more authors.
Tobacco Science and Technology | Year: 2013

By analyzing the fiber properties of pulp, the pulp proportioning of reconstituted tobacco was studied with single factor experiments. The results showed that: comprehensively, the bulk thickness, tensile strength and air permeability of paper-base of paper-making process reconstituted tobacco with the grammage of (30 ± 1) g/m2 would approach their optimal levels when the proportion of tobacco pulp, wood pulp and PCC was 65:20:15 and the ratio of tobacco stem to tobacco dust in tobacco pulp was 7:3.


Li Y.,Huazhong Agricultural University | Li Y.,Tobacco Research Institute of Hubei Province | Feng J.,Tobacco Research Institute of Hubei Province | Liu H.,Huazhong Agricultural University | And 4 more authors.
Plant Disease | Year: 2016

Bacterial wilt caused by Ralstonia solanacearum is the most serious soilborne disease of tobacco (Nicotiana tabacum) in China. In this study, 89 strains were collected in 2012 to 2014 from across the four major tobacco-growing areas in China. The strains were identified as phylotype I by multiplex polymerase chain reaction and further divided into seven sequevars based on polymorphisms in the endoglucanase (egl) gene. Among the seven sequevars, four (15, 17, 34, and 44) have been previously described as pathogens of tobacco and two (13 and 14), which are reported here on tobacco, were previously found only on other plants. In addition, a new sequevar named 54 was identified. Strains from tobacco from different regions showed different levels of genetic diversity based on partial egl gene sequences. The farther north the distribution, the lower the gene diversity found. Pathogenicity of 27 representative strains was assessed by inoculation onto three tobacco cultivars of varying susceptibility. Through cluster analysis of area under the disease progress curve values, the 27 strains were classified into different pathotypes based on virulence; however, no obvious associations were found between sequevar and pathotype. These results will assist in determining geographical distribution of strains, and provide the foundation for breeding and integrated management programs in China. © 2016 The American Phytopathological Society.


Xiong G.,Huazhong University of Science and Technology | Xiong G.,China Tobacco Hubei Industrial Co. | Wei M.,Huazhong University of Science and Technology | Zhou Y.,Huazhong University of Science and Technology | And 3 more authors.
Synthesis | Year: 2011

A base-catalyzed multicomponent cascade reaction between α-substituted acroleins, nitroalkanes, and paraformaldehyde that proceeded smoothly to give high yields of functionalized δ-lactols under mild conditions, is described. This methodology is useful in the development of a concise synthetic route to natural products (±)-manzacidin A and C. © Georg Thieme Verlag Stuttgart.


Tao Y.,China Tobacco Hubei Industrial Co. | Zhang S.,China Tobacco Hubei Industrial Co. | Li W.,China Tobacco Hubei Industrial Co. | Wang Q.,China Tobacco Hubei Industrial Co. | And 3 more authors.
Tobacco Science and Technology | Year: 2015

A Z score-fuzzy AHP model was established by combining Z score, AHP (Analytic Hierarchy Process) with fuzzy comprehensive evaluation method. The evaluation process involved eight steps: establishing a cigarette laboratory evaluation index system, determining the weight of each index with AHP, converting the test results of each index for each sample into Z score (Z, ZB, ZW), establishing a set of evaluation term and a score set with fuzzy evaluation, taking the proportion of Z score of each index for each sample in the evaluating term set as membership degree, forming fuzzy judgment matrix, and finally obtaining the score and rank of cigarette laboratories in terms of physical property testing, smoke analysis and overall testing capability. The established model was verified by taking ten cigarette laboratories as examples. The results showed that this method was suitable for evaluating the testing capability of a cigarette laboratory concerning multi-sample and multi-factor, it could evaluate the physical testing, smoke analysis and overall testing capabilities of a laboratory and find out the indexes which might be problematic, to provide a reference for optimizing and improving the testing capability of the laboratory. ©, 2015, Editorial Office of Tobacco Science and Technology. All right reserved.


Cai C.,Tobacco Research Institute of Hubei Province | Deng H.,Wuhan Regional Climate Center | Cheng L.,Tobacco Research Institute of Hubei Province | Wang P.,China Tobacco Hubei Industrial Co. | Feng J.,Tobacco Research Institute of Hubei Province
Tobacco Science and Technology | Year: 2015

In order to breed new flue-cured tobacco lines of harmonious chemical composition via scientific and rational parent selection and combination collocation, thirty complete diallel cross combinations were prepared from six flue-cured tobacco varieties with Griffing method (III). The genetic effects of eight chemical component indexes (the contents of nicotine, total nitrogen, total sugar, potassium, chlorine and the ratios of total nitrogen/nicotine, total sugar/ nicotine, potassium/chlorine) in tobacco leaves were preliminarily analyzed. The results showed that the said chemical indexes differed extremely significantly between combinations, the general combining ability (GCA) between parents and the specific combining ability (SCA) between combinations exhibited extremely significantly differences as well. Moreover, the variance of GCA was greater than that of SCA for all the indexes except for the ratio of total nitrogen/ nicotine. It indicated that for most of the chemical indexes investigated in this experiment, parent selection was more important than combination collocation. For GCA effect, cv. RG17 possessed a potential in increasing potassium content and cv. Nanjiang No.3 might increase potassium/chlorine ratio; 6388 lines presented a potential in decreasing chlorine content. Analyzing SCA effect from the point of chemical quality, the combination of K326 ×Nanjiang No.3, Jingyehuang × Nanjiang No.3 and K8 × Jingyehuang were the best, followed by K326 × Jingyehuang and K8×RG17. There existed obvious heritability differences between the traits of chemical indexes. Potassium content and total sugar content possessed the highest and the lowest special heritability of 33.82% and 1.37%, respectively. The general heritability of chlorine content (51.84% ) and potassium content (50.04%) was the highest, while that of total sugar content (15.08%) was the lowest. Only the special heritability of potassium content accounted for over 50% of general heritability, it indicated that the heritability of potassium content mainly was additive effect, which facilitated to the breeding tobacco cultivars of high-potassium content and was suitable to line selection at earlier generation. For the traits of other chemical indexes, it would be preferable to carry out line selection while the trait became stable. ©, 2015, Editorial Office of Tobacco Science and Technology. All right reserved.

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