The Effects of During Sun-Cured Period on the Some Chemical Composition Changes of Oriental Tobacco

Yıl 2018, Cilt: 5 Sayı: 2, 186 - 190, 06.05.2018

Maria Kasheva Veselina Masheva Margarita Docheva

https://doi.org/10.30910/turkjans.421365

Öz

Tobacco curing is
a complex combination of parallel physical and biochemical processes in green
tobacco leaves. The aim of this study is to find the effect of the yellowing
stage in the curing process on the change of basic chemical values of nicotine
and sugars in Bulgarian varieties and newly selected lines oriental tobacco in
the Plovdiv and Macedonia tobacco regions. The study is carried out in Tobacco and Tobacco Products
Institute, Markovo. Line 27, Line 94, Line 275, Harmanli 134, Kozarsko 339,
Plovdiv 7, Plovdiv 187, Plovdiv 380, Dupnitsa 160 and Dupnitsa 733 were
investigated, harvest 2016. Еach tobacco sample was divided into two groups -
yellowed for 48 hours and dried without yellowing. Reducing the nicotine
content in tobacco during sun-curing is proven for all studied varieties with
exception of Plovdiv 7. The increasing of quantity of soluble sugars in tobacco
is high for all studied varieties from both tobacco regions.

Anahtar Kelimeler

Oriental tobacco, sun-curing, nicotine, sugar

Kaynakça

• Abubakar, Y. 2000. Predicting Moisture and Chemical Changes During Bulk Curing of Flue-Cured Tobacco. PhD Dissertation. State University. Raleigh, NC.
• Abubakar, Y., Young, J., Johnson, W., Weeks, W. 2000. Changes in moisture and chemical composition of flue-cured tobacco during curing. Tobacco Science 44: 51-8.
• Burton, H., Kasperbauer, M. 1985. Changes in chemical composition of tobacco lamina during senescence and curing. I. Plastid Pigments. J. Agric. Food Chem., 33(5): 879-883.
• Anonymous, 2016. Sustainability in Leaf Tobacco Production. 1-65.
• Chuman, T. 1977. Chemical studies on aroma constituents of Turkish tobacco. Sci. Papers, Cent. Res. Inst., Japan Monopoly Corp. 119: 45-92.
• Dimanov, D., Masheva, V. 2011. New varieties of oriental tobaccos of the Basmi variety group, Bulgarian Tobacco, 6: 23-27.
• Gyuzelev, L. 1983. Tobacco Basics: Chemistry of Tobacco and Tobacco Smoke, Zemizdat, Sofia 9 - 67.
• Anonymous, 2003a. ISO 15152. 2003. Tobacco – Determination of The Content of the Total Alkaloids as Nicotine – Continuous-Flow Analysis Method.
• Anonymous, 2003b. ISO 15154. 2003. Tobacco – Determination of The Content of Reducing Carbohydrates – Continuous-flow analysis method.
• Layten, D., Nielson, M. 1999. Tobacco Leaf and Differences Among Tobacco Types: Leaf Chemistry, Are Taken by Basic Chemical Constituents. Eds., Blackwell Science (Pub.) 221-236.
• Leffingwell, J. C. 1999. Basic Chemical Constituents of Tobacco Leaf and Differences Among Tobacco Types. Blackwell Science, 260-284.
• Leffingwell, J. 2001. Chemicals constituents of tobacco leaf and differences among tobacco types. Leffingwell Repords, 1(2): 1-56.
• Masheva, V., Dimanov, D., Kusheva, M. 2014. New variety of oriental tobacco Kozarsko 339 - biological, economic and technological characteristic, Ecology and Health, 10: 213-215.
• Masheva, V., Kasheva, M. 2016. Inheritance of basic morphological signs and analysis of chemical indicators in oriental tobacco, Ecology and Health: 86-90.
• Shi, Z., Jiao, S., Xie, Z., Chen, Z., Yang X., Liu G., Wu, C. 2008. Changes in alkaloid and total nitrogen contents during air-curing of Burley tobacco in different curing barns. Southwest China Journal of Agriculture Science 21(6): 1574-1578.
• Tso, T. 1990. Production, Physiology and Biochemistry of Tobacco Plant. Ideals Inc., Beltsville, USA.
• Weybrew, J., Woltz, W., Monroe, R. 1984. Harvesting and curing of flue-cured tobacco: the effects of ripeness at harvest and duration of yellowing on yield, physical characteristics, chemical composition and smoker preference. North Carolina Agricultural Research Service, 275: 1-26.