Relevant bibliographies by topics / Low-alkaloid tobacco

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Academic literature on the topic 'Low-alkaloid tobacco'

Author: Grafiati

Published: 22 July 2021

Last updated: 29 July 2025

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Journal articles on the topic "Low-alkaloid tobacco"

Jones, Nadiá M., M. Gabriela Bernardo-Gil, and M. Graço Lourenco. "Comparison of Methods for Extraction of Tobacco Alkaloids." Journal of AOAC INTERNATIONAL 84, no. 2 (2001): 309–16. http://dx.doi.org/10.1093/jaoac/84.2.309.

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Abstract Ultrasound and microwave techniques were used to extract tobacco alkaloids, and response surface methodology was used to optimize extraction conditions. Ultrasonic technique factors were temperature, 30–85°C; time, 3–45 min; solvent volume, 8–80 mL. Microwave extraction factors were pressure, 15–75 psi; time, 3–40 min; power, 30–90% of the maximum magnetron power of 650 W. Soxhlet and solvent AOAC-modified extraction methods were also applied after some improvements. Nicotine, nornicotine, anabasine, and anatabine were quantified by gas chromatography. A steam distillation Internation

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Chaplin, JF. "Die Züchtung von TabakimHinblick auf verschieden hohe Alkaloidgehalte - Tobacco Breeding in View of Different Levels of Alcaloid Contents." Beiträge zur Tabakforschung International/Contributions to Tobacco Research 14, no. 1 (1987): 1–9. http://dx.doi.org/10.2478/cttr-2013-0578.

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AbstractTwo systems of genetic control are involved in the quality and level of total alkaloids in tobacco (Nicotianatabacum L.). A single locus controls the conversion of nicotine to nornicotine and two loci control total alkaloid levels. These levels may be further modified by minor genes or quantitative factors. Breeding lines and cultivars of flue-cured tobacco have been developed with varying levels of total alkaloids (nicotine). Levels of nicotine in tobacco range from near zero in cigar strains up to 4.5 % in Burley varieties. Within the collection of N. tabacumgermplasm and Nicotiana s

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Nölke, Greta, Daniel Volke, Ivana Chudobová, et al. "Polyamines delay leaf maturation in low-alkaloid tobacco varieties." Plant Direct 2, no. 7 (2018): e00077. http://dx.doi.org/10.1002/pld3.77.

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Alp, Aydın, Özlem Toncer, and Sadettin Çelik. "A Research on Herbal and Quality Properties of Lice Local Tobacco as Genetic Source." Turkish Journal of Agriculture - Food Science and Technology 8, sp1 (2020): 62–66. http://dx.doi.org/10.24925/turjaf.v8isp1.62-66.3969.

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Tobaccos produced in Turkey are grouped under different names according to the different environmental properties and various characteristics of the regions where they were grown. Lice tobacco is an important local tobacco variety cultivated under Lice-Hazro and Kulp districts conditions. In recent years, a large number of tobacco origin and village populations disappeared from production and faced the danger of extinction. Especially the Lice local tobacco variety has gained a very good adaptation ability against the stress factors of the region. Different environmental factors such as high a

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Trojak-Goluch, Anna, and Marta Koziara-Ciupa. "Improvement of Nicotiana tabacum L. for low conversion of nicotine to nornicotine and its effect on morphological traits and chemical composition." Agronomy Science 79, no. 3 (2025): 45–64. https://doi.org/10.24326/as.2024.5380.

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Nornicotine is a secondary metabolite formed in tobacco leaves by the oxidative N-demethylation (conversion) of nicotine. Its high level is undesirable because this alkaloid is a precursor of N-nitrosonornicotine, which has been shown to have carcinogenic properties. The aim of the study was to assess the nicotine and nornicotine content in four successive generations of ten tobacco cultivars/breeding lines. The possibility of reducing potentially harmful compounds in the cultivars/breeding lines was also determined. The study was conducted as field experiments between the years 2014 and 2018.

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deRoton, C., A. Wiernik, I. Wahlberg, and B. Vidal. "Factors Influencing the Formation of Tobacco-Specific Nitrosamines in French Air-Cured Tobaccos in Trials and at the Farm Level." Beiträge zur Tabakforschung International/Contributions to Tobacco Research 21, no. 6 (2005): 305–20. http://dx.doi.org/10.2478/cttr-2013-0797.

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AbstractSeveral trials the results of which are compiled in this paper, were carried out at the Tobacco Institute of Bergerac (ITB) and in the area nearby from 1996 to 2003. The objective was to study the formation of tobacco-specific nitrosamines (TSNA) in dark air-cured and burley tobaccos during curing and post-curing treatment under the conditions of cultivation, curing and storage commonly applied by the growers in the south-western part of France. For experimental purposes special treatments were performed in certain trials.The results showed that the main genetic trait involved in the f

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Sinclair, Steven J., Richard Johnson, and John D. Hamill. "Analysis of wound-induced gene expression in Nicotiana species with contrasting alkaloid profiles." Functional Plant Biology 31, no. 7 (2004): 721. http://dx.doi.org/10.1071/fp03242.

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We determined the capacity of three Nicotiana (Solanaceae) species with very different alkaloid profiles (Nicotiana sylvestris Speg & Comes, Nicotiana alata Link & Otto and Nicotiana glauca Grah.) to increase their alkaloid contents in both leaf and root tissues following foliage damage. We also investigated the transcriptional responses of genes encoding enzymes important for alkaloid biosynthesis, namely quinolinate phosphoribosyltransferase (QPT), putrescine N-methyltransferase (PMT), ornithine decarboxylase (ODC) and the putative alkaloid biosynthetic gene A622. In response to woun

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Jacob, Peyton, Gideon St. Helen, Lisa Yu, et al. "Biomarkers of Exposure for Dual Use of Electronic Cigarettes and Combustible Cigarettes: Nicotelline, NNAL, and Total Nicotine Equivalents." Nicotine & Tobacco Research 22, no. 7 (2019): 1107–13. http://dx.doi.org/10.1093/ntr/ntz235.

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Abstract Introduction Dual use of electronic cigarettes (e-cigarettes) and combustible cigarettes is a major public health issue. It is generally accepted that exclusive e-cigarette use is less harmful than exclusive combustible cigarette use, but most e-cigarette users continue to smoke combustible cigarettes as well. To what extent the use of e-cigarettes reduces harm in people who continue to smoke combustible cigarettes has been debated. The aim of this study was to explore the utility of biomarkers as measures of dual use. Methods In two human studies of participants who used e-cigarettes

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Jing, Yuan, Wei Chen, Xuebai Qiu, et al. "Exploring Metabolic Characteristics in Different Geographical Locations and Yields of Nicotiana tabacum L. Using Gas Chromatography–Mass Spectrometry Pseudotargeted Metabolomics Combined with Chemometrics." Metabolites 14, no. 4 (2024): 176. http://dx.doi.org/10.3390/metabo14040176.

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The quality of crops is closely associated with their geographical location and yield, which is reflected in the composition of their metabolites. Hence, we employed GC–MS pseudotargeted metabolomics to investigate the metabolic characteristics of high-, medium-, and low-yield Nicotiana tabacum (tobacco) leaves from the Bozhou (sweet honey flavour) and Shuicheng (light flavour) regions of Guizhou Province. A total of 124 metabolites were identified and classified into 22 chemical categories. Principal component analysis revealed that the geographical location exerted a greater influence on the

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Menassa, Rima, Caigan Du, Zi Qin Yin, et al. "Therapeutic effectiveness of orally administered transgenic low-alkaloid tobacco expressing human interleukin-10 in a mouse model of colitis." Plant Biotechnology Journal 5, no. 1 (2007): 50–59. http://dx.doi.org/10.1111/j.1467-7652.2006.00214.x.

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Dissertations / Theses on the topic "Low-alkaloid tobacco"

Adamo, Noah R. "Reproduction of the root-knot nematode Meloidogyne arenaria on flue-cured tobacco possessing resistance genes Rk1 and/or Rk2 and the impact of parasitism on the accumulation of nicotine in conventional and low-alkaloid tobacco." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/104221.

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Host resistance has become a cornerstone of sustainable production of flue-cured tobacco in regions where root-knot nematodes present a threat to growers. Resistance to races 1 and 3 of M. incognita, historically the most significant root-knot nematode threat to tobacco production, is now widely available in commercially available flue-cured tobacco varieties, and is imparted by the gene Rk1. The same gene also provides resistance to race 1 of M. arenaria. The widespread deployment of this resistance has fostered a shift in root-knot nematode population dynamics, as a result of which M. arenar

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