Beijing Cigarette Factory

Beijing, China

Beijing Cigarette Factory

Beijing, China
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Sun W.,National Tobacco Cultivation & Physiology & Biochemistry Research Center | Wang J.,National Tobacco Cultivation & Physiology & Biochemistry Research Center | Xu D.,National Tobacco Cultivation & Physiology & Biochemistry Research Center | Zhou J.,Beijing Cigarette Factory | And 5 more authors.
Acta Tabacaria Sinica | Year: 2016

Burley tobacco leaves with varied moisture content levels were stored at high temperature environment. Burley tobacco leaves with high and low moisture content were stored at high temperature environment after adding nitrate and nitrite separately. All samples before and after high temperature storage were measured for TSNAs. Results indicated that the TSNA contents decreased with the increment of moisture content after 45℃ storage for 15 d. While moisture content was higher than 17.5%, the total TSNA content tended to be stable. After 45℃ storage for 15 d, four individual TSNA content and the total TSNA content in burley tobacco with detailed moisture content decreased as the moisture content increased from 7.7% to 15.3%. While the moisture content was higher than 15.3%, the total TSNA content tended to be stable. After 60℃ storage for 15 d, nitrite sprays caused a very marked increase of TSNA contents in both the low and high moisture tobaccos, nevertheless, nitrate sprays caused a much smaller increase of TSNA contents in the high moisture tobacco but a significant increase in the low moisture tobacco. Nitrate more easily produced nitrite and other gaseous NOx in low moisture tobacco than high moisture tobacco during high temperature storage was the main reason for increased TSNA formation. Proper increase of the moisture content of cured tobacco would be effective pathways to reduce TSNA formation during high temperature storage. © 2016, Editorial Office Chinese Tobacco Society. All right reserved.


Jin T.,Henan Agricultural University | Shi H.,Henan Agricultural University | Zhou J.,Beijing Cigarette Factory | Bai R.,Beijing Cigarette Factory | And 3 more authors.
Acta Tabacaria Sinica | Year: 2017

Thirty flue-cured tobacco samples from Henan, Yunnan, Guizhou, Hunan and Guangdong were collected and a variety test was set up in Luoyang, Henan province to investigate the relationship between TSNAs content and their precursors in flue-cured tobacco lamina and midrib, and effect of geographic location, variety and leaf position on this relationship. Flue-cured tobacco lamina and midrib were stored at 50℃ to study the effect of high temperature storage on contents of TSNAs, alkaloid and nitrate. Results showed that content of TSNAs in flue-cured tobacco lamina was significantly higher than in midrib, and the highest proportion in lamina was NNN, whereas the highest percentage in midrib was NNK. Total alkaloids in lamina were about 4.7 times higher than in midrib. Nitrate content in midrib was higher than in lamina. TSNAs content in lamina varies significantly between regions, with the highest content in Hunan and Guangdong. Significant differences were found in TSNAs content of lamina between varieties, and the changes of TSNAs were closely related with alkaloid content. Lamina had the highest TSNAs content, followed by side-vein and mid-vein. Correlation analysis revealed that accumulation of TSNAs in tobacco was mainly affected by amount of alkaloid accumulated during flue-curing. TSNAs content of midrib and lamina under 50℃ storage increased 229.2% and 30.6%, respectively, compared with that in low temperature, suggesting that nitrate levels had greater influence on TSNAs formation during high temperature storage. © 2017, State Tobacco Monopoly Bureau and China Tobacco Society. All right reserved.


Wang R.,Henan Agricultural University | Shi H.,Henan Agricultural University | Zhou J.,Beijing Cigarette Factory | Bai R.,Beijing Cigarette Factory | And 5 more authors.
Acta Tabacaria Sinica | Year: 2014

Samples of Binchuan burley tobacco, Dazhou sun-cured tobacco and Baofeng flue-cured tobacco were collected to investigate changes in TSNAs contents during storage and their response to different temperature treatment. Results showed that both total and individual TSNAs contents in both burley and sun-cured tobacco increased with increase of storage time. The most significant increase occurred in high temperature months, for example, from middle of April until August, especially for NNN in burley tobacco. Both total and individual TSNAs contents in flue-cured tobacco which had less nitrate contents were very low and showed non-significant changes after 45°C treatment. While both total and individual TSNAs contents in burley tobacco and sun-cured tobacco were much higher and increased rapidly after the treatment of 45°C, with nitrate decreasing slightly and nitrite rising significantly.


Teng F.,Nanjing University of Information Science and Technology | Chen M.,Nanjing University of Information Science and Technology | Li G.,Nanjing University of Information Science and Technology | Teng Y.,Suzhou Institute of Trade and Commerce | And 6 more authors.
Applied Catalysis B: Environmental | Year: 2011

The highly porous Co 3O 4 nanorods are prepared by a simple hydrothermal method, in which CO(NH 2) 2 is employed as precipitating agent, and K60 (PVP, polyvinylpyrrolidone) is used as surfactant to improve the stability of the nanoparticles. For comparison, the bulk Co 3O 4 is prepared by thermal decomposition of cobalt nitrate. The samples are characterized by field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction (ED), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, N 2 adsorption, Thermogravimetric analysis (TG), H 2-temperature programmed reduction (TPR), CO-, CH 4-, and O 2-temperature programmed desorption (TPD). The catalluminescence (CTL) and catalytic properties of the samples are investigated extensively. The results show that the Co 3O 4 nanorods are composed of nanoparticles, and have a large number of pores with a narrow pore size distribution (1.5-7nm). Compared with the bulk Co 3O 4, the porous nanorods have a higher CTL intensity of CO oxidation, and a higher activity of CH 4 combustion especially at a higher gas hourly space velocity (GHSV), which has been ascribed to its porous structure and larger surface area. © 2011 Elsevier B.V.


Teng F.,Nanjing University of Information Science and Technology | Chen M.,Nanjing University of Information Science and Technology | Li G.,Nanjing University of Information Science and Technology | Teng Y.,Suzhou Institute of Trade and Commerce | And 3 more authors.
Journal of Power Sources | Year: 2012

In this work, the LiFePO 4 nanorods are synthesized in an ionic liquid (IL) in the presence of a surfactant. The samples are characterized by X-ray diffraction, scanning electron microscopy, high resolution transmission electron microscopy, electron diffraction and nitrogen adsorption. The as-obtained LiFePO 4 nanorods in the IL have the diameter of about 200 nm and the length of 1-2 μm; but the aggregated LiFePO 4 microparticles are obtained in the aqueous solution. The results show that a higher temperature and a longer duration are needed in the IL than in the aqueous solution for the formation of LiFePO 4; that both IL and the surfactant play the key roles in the formation of LiFePO 4 nanorods. Furthermore, their charge and discharge properties are investigated. The LiFePO 4 nanorods show a higher discharge capacity (150 at 1C rate) and a higher rate capability than the aggregated particles (133 mAh g -1). The adopted IL approach may provide a "green" route to achieve excellent battery materials. © 2011 Elsevier B.V. All rights reserved.


Shi R.,Tsinghua University | Xu T.,Beijing Cigarette Factory | Yan L.,Beijing Cigarette Factory | Zhu Y.,Tsinghua University | Zhou J.,Beijing Cigarette Factory
Catalysis Science and Technology | Year: 2013

A novel Bi2MoS2O4 nanoplate photocatalyst with high-energy efficiency and high-activity has been successfully synthesized by a reflux method. The visible-light response of Bi2MoS 2O4 could extend from 480 to 630 nm compared with Bi 2MoO6. Compared with Bi2MoO6, the photocatalytic activities of the Bi2MoS2O4 sample increased about 0.4 and 4.6 times for degradation of methylene blue (MB) under UV and visible-light (λ > 510 nm) irradiation, respectively. Density functional calculations revealed that Bi2MoS 2O4 had a narrower band gap and wider valence bandwidth compared with Bi2MoO6 because S 3p orbitals contributed to the valence band formation. The high energy efficiency of Bi 2MoS2O4 photocatalysts came from a narrow bandgap and the high activity came from a wider and dislocated valence band of Bi2MoS2O4. Furthermore, the synthesis of Bi2MoS2O4 could afford guidance for designing the other high-energy efficient and highly active photocatalysts. © 2013 The Royal Society of Chemistry.


Sun W.,National Tobacco Cultivation & Physiology & Biochemistry Research Center | Wang J.,National Tobacco Cultivation & Physiology & Biochemistry Research Center | Zhou J.,Beijing Cigarette Factory | Ma Y.,Beijing Cigarette Factory | And 5 more authors.
Acta Tabacaria Sinica | Year: 2015

Field experiment was conducted to determine the effect of nitrate nitrogen content on TSNAs formation during high temperature storage. Different concentration of nitrate was applied in tobacco growing season. Leaf samples from lamina and midrib of both burley and flue-cured tobacco were collected. Lab experiment was conducted in a temperature-controlled chamber at 45℃ and 10℃ for 15d. Nitrate nitrogen and TSNA contents of all samples were determined. Results indicated that nitrate nitrogen content increased with the increment of nitrogen fertilizer. Content of nitrate nitrogen and TNSA had a low correlation in newly cured tobacco. However, after high temperature storage for 15d, the correlation significantly increased. Nitrate nitrogen content and TSNAs increment during high temperature storage showed a significant positive correlation. Nitrate nitrogen content in midrib was much higher than that in lamina in both burley and fluecured tobacco. After high temperature storage for 15d, TSNAs increment in midrib was significantly higher than that in lamina. With the increase of nitrate applied to flue-cured tobacco leaves, nitrate nitrogen and TSNA content after high temperature storage increased significantly. These results indicated that nitrate nitrogen content was closely related to the formation of TSNAs during high temperature storage. Therefore, reduction of leaf nitrate content through agronomic measures is effective in reducing TSNA formation during storage. ©, 2015, State Tobacco Monopoly Bureau and China Tobacco Society. All right reserved.


Sun W.,National Tobacco Cultivation & Physiology & Biochemistry Research Center | Yang J.,National Tobacco Cultivation & Physiology & Biochemistry Research Center | Zhou J.,Beijing Cigarette Factory | Xu D.,National Tobacco Cultivation & Physiology & Biochemistry Research Center | And 4 more authors.
Acta Tabacaria Sinica | Year: 2015

A pot experiment was conducted to study the effect of different ratio of nitrate-N to ammonium-N on nitrate nitrogen contents, chemical composition and TSNA formation during high temperature storage. Results showed that nitrate nitrogen contents of burley tobacco increased with the increment of the ratio of nitrate-N to ammonium-N. Contents of 4 types of TSNA and total contents of TSNAs after curing also significantly increased with the increase of the ratio of nitrate-N to ammonium-N. In the process of air-curing, nitrate nitrogen contents significantly increased. After 45℃ storage for 15d, the contents of 4 types of TSNAs and total contents of TSNAs were all significantly higher than that stored at low temperature. The net increase of TSNA contents also increased with the ratio of nitrate-N to ammonium-N. In the process of maturing and curing of flue-cured tobacco, nitrate nitrogen contents decreased. Flue-cured tobacco leaves contained low contents of nitrate nitrogen after curing. Nitrate nitrogen contents and TSNA contents before and after high temperature storage in flue-cured tobacco had no relationship with the ratio of nitrate-N to ammonium-N, while the TSNA level was the lowest under the treatment with the nitrate-N to ammonium-N ratio of 50 to 50 for middle leaves and under the treatment of 100% nitrate-N for upper leaves. With the increase of ammonium-N to nitrate-N ratio, the contents of nicotine, total nitrogen and protein of burley tobacco increased significantly. Chemical composition of flue-cured tobacco showed no relationship with nitrogen source, but the flue-cured leaves under treatment of NO3 --N to NH4 +-N ratio of 50: 50 had the highest sugar content and well-balanced chemical composition. ©, 2015, State Tobacco Monopoly Bureau and China Tobacco Society. All right reserved.

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