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Bao J.,China Tobacco Jiangxi Industrial Co.
Tobacco Science and Technology | Year: 2013

The detecting system of cartoner (CT) in GD packing line fails to exactly identify the cartons with appearance defects, therefore, a carton detector was designed with photoelectric and laser detection technology. The conveying and folding of carton blanks were monitored by optical fiber sensor and digital laser sensor separately, the carton with defective appearance resulted from carton blank misalignment was online rejected. And PLC was adopted for the functions of defective carton rejecting, machine stopping and alarm information displaying. The results of application showed that the detection rate for faults in carton blank conveying and folding reached 100% and 99.6%, respectively; the detection precision for carton appearance defects increased from 350 to 3 mm, and the packing quality was effectively improved. Source

Ding Y.,Hefei University of Technology | Cai J.-B.,China Tobacco Jiangxi Industrial Co. | Qi F.,Hefei University of Technology | Su Q.-D.,Hefei University of Technology
Journal of the Chinese Chemical Society | Year: 2011

The thermal decomposition behavior and the pyrolysis products of benzyl-2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside (BGLU) were studied with synchrotron vacuum ultraviolet (VUV) photoionization mass spectrometry at temperatures of 300, 500 and 700 °C at 0.062 Pa. Several pyrolysis products and intermediates were identified by the measurement of photoionization mass spectra at different photon energies. The results indicated that the primary decomposition reaction was the cleavage of O-glycosidic bond of the glycoside at low temperature, proven by the discoveries of benzyloxy radical (m/z = 107) and glycon radical (m/z = 331) in mass spectra. As pyrolysis temperature increased from 300 to 700 °C, two possible pyrolytic modes were observed. This work reported an application of synchrotron VUV photoionization mass spectrometry in the study of the thermal decomposition of glycoside flavor precursor, which was expected to help understand the thermal decomposition mechanism of this type of compound. The possibility of this glycoside to be used as a flavor precursor in high temperature process was evaluated. Source

Tang P.-P.,Hefei University of Technology | Cai J.-B.,China Tobacco Jiangxi Industrial Co. | Cai J.-B.,Hefei University of Technology | Gao Y.,Hefei University of Technology | Su Q.-D.,Hefei University of Technology
Journal of the Chinese Chemical Society | Year: 2010

Amolecular recognition bionic solid phase extraction (SPE) column for separation of glucosides has been prepared using a positively charged β-glucosylamidine as the ligand inwhich a glyconmoiety is connected via an N-glycoside linkage. β-Glucosylamidine, highly potent and selective inhibitors of β-glycosidase, is immobilized through a one-step synthesize procedure involving the addition of β-glucosylamine and 2-iminothiolane. HCl simultaneously to a matrix modified with maleimido groups via an appropriate spacer to give a molecular recognition absorbent for β-glucosides. N-octyl-β-D-glucopyranoside and β-D-galactopyranoside or α-D-mannopyranoside was directly chromatographed through the bionic chromatographic column, resulting in a much stronger retention of β-D-glucopyranoside than β-D-galactopyranoside and α-D-mannopyranoside. The retained glucopyranoside could only be eluted by glucose solution. This indicates that the binding of the glucoside was of specific nature that corresponds to the glycon substrate specificity of the glucoside. The ease of preparation and the selective nature of the molecular recognition bionic chromatography should promise a large-scale preparation of the molecular recognition adsorbent for the purification and removal of glucosides according to their glycon substrate specificity. Source

Gan X.,China Tobacco Jiangsu Industrial Co. | Hu Q.,CAS Zhengzhou Research Institute | Jiang J.,CAS Zhengzhou Research Institute | Cheng T.,China Tobacco Jiangsu Industrial Co. | And 11 more authors.
Tobacco Science and Technology | Year: 2014

In order to study the influences of Health Canada Intense (HCI) regime on the deliveries of tar, nicotine and carbon monoxide (CO) in mainstream smoke of super slim cigarettes, a collaborative study involving 7 rotary smoking machines and 5 linear smoking machines in 9 laboratories was carried out by smoking 4 super slim cigarette brands under ISO and HCI regimes respectively. The results showed that: 1) The influences of HCI regime on the deliveries of tar, nicotine and CO were basically the same. 2) Under HCI regime, the deliveries of tar, nicotine and CO increased with the decrease of tar delivery determined under ISO regime and/or with the increase of ventilation rate of cigarette filter. 3) Comparing with ISO regime, the repeatability (r) and reproducibility (R) of tar and nicotine determination results, the repeatability (r) of CO determination results and the relative reproducibility (R/m) of tar determination results under HCI regime were higher, which indicated that the precision of HCI regime for tar, nicotine and CO determination results was lower than that of ISO regime. Source

Cai J.-B.,China Tobacco Jiangxi Industrial Co. | Luo H.-T.,China Tobacco Jiangxi Industrial Co. | Zhao C.-L.,Nanchang University
Asian Journal of Chemistry | Year: 2014

The rapid analytical method to determine the trace of water in tobacco essence by Karl Fischer method. The results showed water in I cigarette addictive was determined, respectively by Karl Fischer method with satisfactory results. The RSD of this determination method was 1.65-2.54 % and recovery rate reached 93.46-106.15 %. This method has been applied for the determination of water in cigarette addictive. The content of total water was 1.49-5.74 %. Source

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