This study was carried out to investigate the influence of stem materials such as black stem on the quality of expended stem and cigarettes. Normal and black stem were separated by tobacco scan and then, those stems were expanded after treating with their respective stem casings. Total sugar, ether ...
This study was carried out to investigate the influence of stem materials such as black stem on the quality of expended stem and cigarettes. Normal and black stem were separated by tobacco scan and then, those stems were expanded after treating with their respective stem casings. Total sugar, ether extract, ash contents and pH were slightly low in black stem compared with normal stem. However, the number of bacteria and fungi ratio were remarkably higher in black stem than that of normal stem. As compared with normal stems, ratio of rushed stem in rolled process was approximately 2 times higher in black stem with the consequency that the filling capacity of black stem was decreased. The ratio of large particles (> 3.35 mm) of expanded black stem showed decreasing tendency and small particles rate (1.40 mm <) was increased compared with normal stem. When expanded stems were prepared using stem containing 5 levels (0, 10, 20, 30 and 100 %) of black stem, the filling capacity was decreased and static burning rate was significantly decreased with increasing expanded black stem rate. However, the weight and hardness of cigarettes were slightly increased with increasing expanded black stem rate. The contents of phenol compounds, aromatic amines and carbonyl compounds in the cigarette mainstream smoke from the cigarette which was manufactured with various ratio of expended black stem, were gradually increased with increasing expanded black stem rates. Also, the cytotoxicity and the mutagenicity of the TPM were significantly increased with increasing expanded black stem rate. The sensory test result showed that cigarettes blended with 10 and 30 % level of black stem rate was exhibited significantly high sensory attributions such as off-taste, impact, hotness, bitterness and irritation as compared with cigarette blended with normal stem, while smoke fullness and cleanness were slightly decreased with increasing expanded black stem rates. The number of brown spots on cigarettes paper was 2 to 3 times high in cigarettes containing black stem than that of cigarette made from normal stem and were high with increasing black stem rate. The overall assessment in this study suggest, that black stem should not be used because of bad quality of expanded stem and high toxicological activity of cigarette mainstream smoke.
This study was carried out to investigate the influence of stem materials such as black stem on the quality of expended stem and cigarettes. Normal and black stem were separated by tobacco scan and then, those stems were expanded after treating with their respective stem casings. Total sugar, ether extract, ash contents and pH were slightly low in black stem compared with normal stem. However, the number of bacteria and fungi ratio were remarkably higher in black stem than that of normal stem. As compared with normal stems, ratio of rushed stem in rolled process was approximately 2 times higher in black stem with the consequency that the filling capacity of black stem was decreased. The ratio of large particles (> 3.35 mm) of expanded black stem showed decreasing tendency and small particles rate (1.40 mm <) was increased compared with normal stem. When expanded stems were prepared using stem containing 5 levels (0, 10, 20, 30 and 100 %) of black stem, the filling capacity was decreased and static burning rate was significantly decreased with increasing expanded black stem rate. However, the weight and hardness of cigarettes were slightly increased with increasing expanded black stem rate. The contents of phenol compounds, aromatic amines and carbonyl compounds in the cigarette mainstream smoke from the cigarette which was manufactured with various ratio of expended black stem, were gradually increased with increasing expanded black stem rates. Also, the cytotoxicity and the mutagenicity of the TPM were significantly increased with increasing expanded black stem rate. The sensory test result showed that cigarettes blended with 10 and 30 % level of black stem rate was exhibited significantly high sensory attributions such as off-taste, impact, hotness, bitterness and irritation as compared with cigarette blended with normal stem, while smoke fullness and cleanness were slightly decreased with increasing expanded black stem rates. The number of brown spots on cigarettes paper was 2 to 3 times high in cigarettes containing black stem than that of cigarette made from normal stem and were high with increasing black stem rate. The overall assessment in this study suggest, that black stem should not be used because of bad quality of expanded stem and high toxicological activity of cigarette mainstream smoke.
Akehurst, B. C. (1981) Tobacco, 2nd ed., p. 566-577. Longman Inc. New York, U.S.A.
Bombick, D. W., Bombick, B. R., Ayres, P. H., Putnam, K., Avlos, J., Borgerding, M. F. and Doolittle, D. J.(1997) Evaluation of the genotoxic and cycotoxic potential of mainstream whole smoke and smokecondensate from a cigarette containing a novel carbon filter. Fund. Appl. Toxicol. 39: 11-17.
Borenfreund, E. and Puerner, J. A. (1985) Toxicity determined in vitro by morphological alterations and neutral red absorption. Toxicol. Lett. 24: 119-124.
Cronshaw, A. W. and Mitchell T. G. (1976) Investigation of brown spotting of cigarettes produced by the malayan tobacco company. BAT. DN: 103413249
Curvall, M., Enzell, C. R. and Pettersson, B. (1984) An evaluation of the utility of four in vitro short term tests for predicating the cytotoxicity of individual compounds derived from tobacco smoke. Cell Biol. Toxicol. 1: 173-193.
Holt, B. S., Chilton, D. M. and Sampson, J. A. (1985) Factors effecting discoloration and carbonization of unmanufactured flue-cured tobacco. Beitr. Tabakforsch. Int. 13: 95-99
Health Canada (1999a) Determination of selected carbonyls in mainstream tobacco smoke. Tobacco Control Program Health Canada-Official method T-104.
Health Canada (1999b) Determination of 1,3-butadiene, isoprene, acrylonitrile, bensene and toluene in mainstream tobacco smoke. Official method T-116.
Health Canada (1999c) Determination of pyridine, quinoline and styrene in mainstream tobacco smoke. Tobacco Control Program Health Canada-Official method T-112.
Jackson, J. L. (1989) Black flue-cured stem. B. A. T. DN: 400073563.
Jenkins, C. R. (1993) Cigarette spotting. B. A. T. DN: 400589519.
Maron, D. M. and Ames, B. N. (1983) Revised methods for the Salmonella mutagenicity test. Mutat. Res. 113: 173-215.
Mckee, C. G., Frey, B. C. and Hoyert, J. H. (1984) The effects of leaf moisture content on farm storage ability of Maryland tobacco packed in bales. Tob. Sci. 28: 144-117.
Tewes, F. J., Meisgen, T. J., Veltel, D. J., Roemer, E. and Patskan, G. (2003) Toxicological evaluation of electrically heated cigarette. Part 3: genotoxicity and cytotoxicity of mainstream smoke. J. Appl. Toxicol. 23: 341-348.
Tso, T. C. (1990) Production, Physiology and Biochemistry of Tobacco Plant. p.125-134. IDEALS, Inc. Beltsville, Maryland, U.S.A.
Walton, L. R., Casade, M. P. Taraba, J. L., Casada, J. H., Henson, W. H. and Swetnam, L. D. (1985) Storage of burley tobacco in bales and bundles. Transaction of the USAE(American Soci. of Agri. Engin.) 28: 1301-1304.
Weeks, W. W. and Welty, R. E. (1972) Influence of storage conditions on the Fungi flora and chemical composition of tobacco. TSRC #2637.
Welty, R. E. (1972) Fungi isolated from fluecured tobacco sold in Southeast United States, 1968-1970. Appl. Microbiol. 24: 518-520.
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