• Title/Summary/Keyword: tobacco

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Study of Pyrolysis Pattern and Transfer Rate of Organochlorine Pesticide in Tobacco

  • Min, Hye-Jeong;Jang, Seok-Su;Kim, Ick-Joong;Kim, Yong-Ha;Min, Young-Keun
    • Journal of the Korean Society of Tobacco Science
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    • v.29 no.2
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    • pp.118-124
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    • 2007
  • GRLs(Guidance Residue Levels) of agricultural chemicals for tobacco are recommended by the CORESTA Agro-Chemical Advisory Committee guide. In the GRLs list, organochlorine group is one of pesticides commonly used on tobacco cultivation. In this model study, the quantitative correlation in the transfer rate of pesticide residue into tobacco smoke by spiking of organochlorine pesticides to cigarette and pyrolysates were investigated. The spiking concentration referred to the range of GRLs list and the organochlorine pesticides in mainstream smoke were analyzed by GC-MS. For the understanding of the composition variation versus temperature, the behavior of pesticides was investigated by pyrolysis-gas chromatography-mass spectrometry(Py-GC-MS). In this study, the transfer rate of pesticide residue into tobacco smoke at four different spiking concentration and the composition of pyrolysates were analyzed differently. At $10\;{\mu}g/cig$ spiking concentrations, the organochlorine pesticides were transferred into tobacco smoke in $0.02\;{\sim}\;10.19\;%$ each of component and the most of pesticides were pyrolyzed during smoking. It was found that the decomposition compounds from organochlorine pesticides were mainly composed of oxygenated and nitrogenous compounds. This study could estimate that the transfer rate of pesticides into tobacco smoke is very small amount.

Changes in Physical and Mechanical Properties of Freon-Adsorbed and Heat - Treated Leaf Tobacco (Freon Gas흡착 및 열처리에 의한 담배조직의 물리적, 역학적 특성변화연구)

  • Kim, Ki-Hwan;Yoo, Kwang-Kun;Joo, Young-Serg
    • Journal of the Korean Society of Tobacco Science
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    • v.6 no.1
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    • pp.39-49
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    • 1984
  • In the tobacco industry, it is important to study the change of mechanical property occurring the expansion process. The purpose of this study is to attain basic data for development of a tobacco expansion method. 1 . Freon gas was adsorbed to tobacco under various conditions of temperature, relative humidity and pressure, and then the amount of freon gas adsorbed was analyzed by GC. Freon adsorption rate of Burley 21 was more than that of By104 at the same condition and about 17 $\pm$ 1% moisture content produced better adsorption rate. 2. Freon adsorbed sample were heated to about $150^{circ}C\;to\;230^{\circ}C$ in a drying oven and recycle duct form about 2 to 30 seconds, and then the change of mechanical property were measured. Heated leaf was damaged when the tissue was pressed by the force of above $0.5x10^8dyn/cm^2$. The optimum condition of no damage of the sample was below the temperature of 15$0^{\circ}C$ and heating time of 10 seconds. It was more economically advantages to treated sample in a recycle duct than to be in a drying oven. By this process, the specific volume of the heated sample was increased from 80 to 110 percent in comparison to that of untreated sample.

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Optimized Analytical Method of Ether Extract in Leaf Tobacco by XT15(ANCOM) (AOCS Method) (XT15(ANCOM)를 활용한 잎담배 에테르 추출물의 최적 분석방법 구명(AOCS Method))

  • Na, Seung-Ju;Lee, Jung-Lae;Ha, Ah-Rang;Kim, Suk-Jae;Seo, Jung-Kyu
    • Journal of the Korean Society of Tobacco Science
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    • v.32 no.2
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    • pp.88-94
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    • 2010
  • The ether extract(EE) of leaf tobacco contains diverse compounds such as lipid, resinoid, paraffin hydrocarbons and pigments. Although the correlation of EE concentertion with leaf tobacco has not been established clearly, it is known that in some concentration range, EE concentration of leaf tobacco exerts good influence on the quality of tobacco. Recently, The American Oil Chemist's Society introduced new method(Am 5-04; AOCS, 2009) to determine EE concentration by AT15 extractor. This method is based on extraction with organic solvent at relatively high temperature and pressure, which significantly reduces the extraction time and ensures safety. The aim of this study is to optimize analytical condition of AOCS method for analyzing EE concentration of leaf tobacco. When sample pre-drying time and extraction time of XT15 were set to 3 hour and 30 minute and 30 minute respectively, EE concentration obtained from AOAC method. Statistical analysis(T-test) showed that there is no difference(P>0.05) between EE concentrations from two methods.

The Trend of Cigarette Design and Tobacco Flavor System Development

  • Wu, Jimmy Z.
    • Journal of the Korean Society of Tobacco Science
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    • v.24 no.1
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    • pp.67-73
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    • 2002
  • In light of addressing consumer health concern, coping with anti-tobacco movement, and promoting new product, tobacco industry is actively pursuing to make a new generation of cigarettes with low tar and nicotine deliveries, and less harmful substances. Low tar and low nicotine cigarettes increases their market shares dramatically world wide, especially in KT&G, multinational tobacco companies, EU countries, even in China regulated by CNTC to set up yearly target to lower tar and nicotine deliveries. On the other hand, to design a new cigarette with reduced harmful substances begins to gain speed. The "modified Hoffmann list" publishes thirty plus substances in tobacco leaf and main smoke stream, which is the prime suspect causing health problems. Various ways and means are developed to reduce such components including new tobacco breeds, new curing method, tobacco leaf treatment before processing, selected filtration system, innovated casing system to reduce free radicals, as well as some non conventional cigarette products. In TSRC held this year, the main topic is related to reduce tobacco specific nitrosamines in tobacco leaf. The new generation of cigarette is in the horizon. It still needs a lot help to produce commercial products with satisfied taste and aroma characters. The flavor industry is not regulated by many governments demanding which ingredients might or might not be for tobacco use. However, most of the cigarette companies self impose a list of ingredients to guide flavor suppliers to design flavors. Unfortunately, the number of ingredients in those lists is getting shorter every year. It is understandable that the health is not the only reason. Some cigarette companies are playing safe to protect the company from potential lawsuit, while others are just copying from their competitors. Moreover, it is obvious that it needs more assistance from casings and flavors to design new generation of cigarettes with missing certain flavor components in tobacco leaf and main smoke stream. These flavor components are either non-existed or at lower level at new form of cured tobacco leaf or filtered in the main smoke stream along with reduced harmful substances. The use of carbon filters and other selected filtration system poses another tough task for flavor system design. Specific flavor components are missing from the smoke analysis data, which brings a notion of "carbon taste" and "dryness" of mouth feel. It is ever more demanded by cigarette industry to flavor suppliers to produce flavors as body enhancer, tobacco notes, salivating agents, harshness reducer, and various of aromatic notes provided they are safe to use. Another trend is that water based flavor or flavor with reduced ethanol as solvent is gaining popularity. It is preferred by some cigarette companies that the flavor is compounded with all natural ingredients or all ingredients should he GMO free. The new generation of cigarettes demands many ways of new thinking process. It is also vital for tobacco industry. It reflects the real needs for the consumers that the cigarette product should be safe to use as well as bearing the taste and aroma characters smokers always enjoyed. An effective tobacco flavor system is definitely a part of the equation. The global trend of tobacco industry is like trends of any other industries lead by consumer needs, benefited with new technology availability, affected by the global economy, and subjected for various rules and regulations. Anti-tobacco organizations and media exceptionally scrutinize cigarette, as a legal commercial product. Cigarette is probably the most studied commercial product for its composition, structure, deliveries, effects, as well as its new developmental trend. Therefore, any new trend of cigarette development would be within these boundaries. This paper is trying to point out what it would be like for tobacco industry in the next few yews and what concerns the tobacco industry. It focuses mostly on the efforts to produce safer cigarettes. It is such a vital task for the tobacco industry and its affiliate industries such as cigarette papers, filters, flavors, and other materials. The facts and knowledge presented in this paper might be well known for the public. Some of the comments and predictions are very much personal opinion for a further discussion.

Tobacco-Related Chronic Illnesses: A Public Health Concern for Jamaica

  • Crawford, Tazhmoye V.;McGrowder, Donovan A.;Barnett, Jasper D.;McGaw, Barbara A.;McKenzie, Irving F.;James, Leslie G.
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.9
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    • pp.4733-4738
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    • 2012
  • Background: Tobacco use is a leading cause of preventable morbidity and mortality from non-communicable diseases. The objectives of the study were to determine the percentage of annual income used to purchase tobacco-related products and treat tobacco-related illnesses, and assess the characteristics of smokers and their awareness of the health-related risks of smoking. Method: Stratified and snowball sampling methods were used to obtain information (via a 17-item, close-ended questionnaire) from 85 adult respondents (49 males and 36 females). The instrument comprised of demographic characteristics, smoking behavioural/lifestyle, health, and micro socio-economics. Results: There were no significant differences between individuals who were affected by chronic obstructive pulmonary disorder (COPD) (14.1%) and cardiovascular disease (18.8%). It was found that respondents spend 30-39% of their annual income on tobacco-related products. Forty percent (40.0%) and 41.7% of respondents with lung cancer and COPD respectively spend more than 50% of their annual income to treat these diseases. The majority (80%) of those who continues to consume tobacco-related products were uncertain as to why they were doing it. Not all the smokers were aware of the dangers of tobacco consumption despite their level of education. Conclusion: The majority of the respondents who had tobacco-related illnesses such as lung cancer and COPD spend a significant amount of their income on their health care. Not all the smokers were aware of the dangers of tobacco consumption despite their level of education. This suggests the need for increase public awareness where both smokers and non smokers are being fully or adequately informed about the dangers or health risks of tobacco consumption.

Passive Smoking and Attitudes towards Tobacco Control Programs among Iranian Dental Students

  • Keshavarz, Hooman;Jafari, Ahmad;Khami, Mohammad Reza;Virtanen, Jorma Ilmari
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.6
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    • pp.3635-3639
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    • 2013
  • Background: Conclusive evidence exists about associations between several life-threatening diseases and passive smoking. The objective of our study was to investigate the prevalence of passive smoking among Iranian dental students, to assess their attitudes towards tobacco control programs, and to explore the association between these two and tobacco use. Methods: In eight randomly selected dental schools, all fourth-year students were surveyed by means of a self-administered anonymous questionnaire in December 2010. The Global Health Professions Student Survey (GHPSS) questionnaire served as the data collection instrument. Exposure to environmental tobacco smoke (ETS) was assessed during the previous week. Chi-square test, logistic regression, and linear regression served for statistical analyses. Results: The response rate was 84% (325 students, 66% female). Exposure to ETS was reported by 74% of the participants. Men were significantly more exposed to ETS at home, and in other places than were women. Most of the students agreed on queried tobacco control policies. The lowest agreement (72%) was for banning smoking in coffee shops and teahouses. A logistic regression model showed that adjusted for gender, passive smoking at home is significantly associated with current tobacco use. A linear regression model suggested that the total score of attitudes is significantly associated with passive smoking at home, passive smoking in other places, tobacco use experience, and current tobacco use. Conclusions: The study reports high exposure to ETS among dental students, and its association with current tobacco use and attitudes towards tobacco control.

Influence of Experiences of Witnessing Tobacco Advertising and Preferences of Tobacco Companies' Social Responsibility on Current and Future Smoking Intentions in Adolescents (담배광고 목격경험과 담배회사의 사회공헌활동에 대한 선호도가 청소년의 현재 흡연과 미래 흡연의도에 미치는 영향)

  • Shin, Sung Rae;Shin, Sun Hwa;Lee, Bok Keun;Yang, Jin Hee
    • Research in Community and Public Health Nursing
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    • v.25 no.1
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    • pp.33-43
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    • 2014
  • Purpose: To evaluate the influence of experiences of witnessing tobacco advertising and preferences of tobacco companies' social responsibility (CSR) on current and future smoking intentions in adolescents. Methods: Data were collected from 700 adolescents living in Korea representing 7 metropolitan cities and 8 provinces in the method of proportional random sampling. The Gallup's data collection system was adopted using 1:1 face to face interviews. The witness of tobacco advertising was determined by 'yes', or 'no' responses to three survey items and to four survey items for preferences of tobacco CSR. For statistical analysis, ${\chi}^2$ test, Fisher's exact test and logistic regression were used. Results: 98.4% of the adolescents had experiences of witnessing tobacco advertising. POP (OR=103.44, 95% CI: 8.22~1301.45) and magazine advertisement (OR=6.07, 95% CI: 1.34~22.58) had a significant effect on their current smoking. Also, POP (${\beta}$=.24, p<.001) and movie advertisement (${\beta}$=.42, p<.001) had a significant effect on their future smoking intentions. As for the preferences of tobacco CSR, cultural-art support activities (${\beta}$=.15, p=.025) and environmental purifying campaigns (${\beta}$=-.15, p=.034) had a significant effect on their future smoking intentions. Conclusion: Witness of tobacco advertising and positive responses to tobacco CSR are associated with current and future smoking intentions in adolescents.

Study of Soil Characteristics on Productivity of Flue-cured Tobacco (Nicotiana tabacum L.) II. Infiuences of Soil Chemical Characteristics on Productivity of Flue-cured Tobacco (황색종 담배의 생산성에 관여하는 토양특성 제2보. 토양의 화학적 특성이 황색종 담배의 생산성에 미치는 영향)

  • Kim, Yong-Yeon;Lee, Jung-Ho;Lee, Yun-Hwan
    • Journal of the Korean Society of Tobacco Science
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    • v.9 no.2
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    • pp.3-9
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    • 1987
  • This study was been conducted to determine chemical characteristics of soils in the major districts cultivating flue-cured tobacco plant. Also native soil productivities were measured by means of bioassay planting tobacco plant without fertilizer at 87 selected lolls through pot and field experiments. Inorganic nutrient in soils affecting the dry weight of tobacco leaves cultivated in the field were investigated. The results obtained are summarized as follows; 1. Among soil chemical characteristics, pH, $NO_3$-N, $NH_4$-N , $P_2O_5$, and Mg Influenced significantly the dry weight of tobacco loaves In pot experiment, whole In the field experiments, pH, $NO_3$-N, $NO_3$-N+$NH_4$-N, and Ca had influence. 2. Correlation coefficients between soil chemical characteristics and dry weight of tobacco leaves were higher in pot experiment than field. The results revealed that soil morphological characteristics might more close influence on dry weight of tobacco leaves than chemical characteristics. 3. For prediction of dry weight (Productivity) of tobacco leaves without fertilizer multiple regression analysis were introduced using troll chemical characteristics. A combination of pH, $NO_3$-N, and Ca was very reliable for prediction of productivity as equation. y=5.02+18.07$x_1$ +2.61$x_2$ +5.36$x_3$ R=0.444** Where $x_1$ : pH, $x_2$ : $NO_3$-N, $x_3$:Ca

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Study on regional Distribution and Etymology according to the Type in the World's Tobacco Name (세계 담배이름의 유형에 따른 지역적 분포와 어원에 관한 연구)

  • Jeong, Kee-Taeg
    • Journal of the Korean Society of Tobacco Science
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    • v.37 no.1
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    • pp.8-17
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    • 2015
  • The purpose of this study is to classify the tobacco names in the world, to investigate the regional distribution of the classified type, and to show origin of names according to the type. The names of tobacco used in this study was 50. The type of tobacco names was classified by the presence or absence of nasal sound(morn) on the first syllable, the Number of syllable, and the structure of consonants and vowels of tobacco names. Type I (Dambago) has the nasal sound on the first syllable. The proportion of Type I(Dambago) was 28%. And the rest(Type I~Type V ; 72%) has no nasal sound. Type II(Tabaco) has three syllables, and its proportion was 20%. Type III(Tabac) has the two syllables and the structure of T+vowels+B+vowels. And its proportion was 30%. Type IV(Tutun) has the two syllables and the structure of T+vowels+T+vowels. And its proportion was 12%. Type V(Duhan) has the two syllables and the structure of D+vowels+H(V)+vowels. And its proportion was 10%. The world's most widely distributed type was Type I(Dambago). regional distribution of the world's tobacco names were clustered by the type. 72% of Type I(Dambago) was distributed in Asia. The etymology of Type I(Dambago) was only 14% Tambaku and the other is not yet known. The etymology of Type I(Dambago) seems to be derived from the Haitian Tambaku(meaning a tobacco pipe). 88% of Type II(Tabaco) and III(Tabac) were distributed in Europe. The etymology of Type II(Tabaco) and Type III(Tabac) were 84% Spanish "Tabaco". 100% of Type IV(Tutun) and V(Duhan) were distributed in Europe. The etymology of Type IV(Tutun) and Type V(Duhan) were 100% Turkish tutun and duhan, respectively. This finding suggests that the etymology of Type I(Dambago) is certainly may be Haitian "Tambaku(meaning a tobacco pipe)".

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Insights into the Tobacco Cessation Scenario among Dental Graduates: An Indian Perspective

  • Binnal, A.;Rajesh, G.;Denny, C.;Ahmed, J.
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.6
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    • pp.2611-2617
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    • 2012
  • Introduction: To curb the ever growing menace of tobacco and its ill effects, it is essential to prevent its usage. Dental professionals' contributions can be invaluable in this venture. Objectives: To assess Indian dental graduates' knowledge, attitude and practices towards tobacco cessation; perceived effectiveness in pursuing tobacco cessation activities; perception of factors that interfere in tobacco cessation as barriers; and willingness to participate in tobacco cessation. Further, to determine associations among the aforementioned variables. Methodology: All house surgeons in Manipal College of Dental Sciences, Manipal University, Mangalore were included in the study. A structured, pre-tested and self-administered questionnaire was employed to assess participants' knowledge, attitude, behavior, perceived effectiveness, perceived barriers and willingness to participate in tobacco cessation. Information regarding respondents' age, gender and residence was collected. Results: A total of 100 out of 103 respondents participated in the study. Mean knowledge, attitude, behavior, perceived effectiveness, perceived barrier scores were $17.6{\pm}2.53$ (73.2%), $72.1{\pm}6.59$ (90.2%), $28.3{\pm}5.12$ (67.4%), $13.3{\pm}5.36$ (53.16%) and $35.0{\pm}3.79$ (89.8%) respectively. Overall, 97% respondents were willing to participate in tobacco cessation activities. Correlation analysis revealed that knowledge was associated with attitude (r=0.36, p=0.00) and perceived barriers (r=0.34, p=0.00) and behavior was associated with perceived barriers (r=0.22, p=0.03). Conclusions: Respondents reported high knowledge and attitude scores, along with high perceived barriers scores and willingness to participate in tobacco cessation activities. Present study highlights the need for a more meaningful involvement of dental professionals in tobacco cessation and has policy implications for curriculum changes regarding the same.