담배(Nicotiana tabacum L.)葉中 非揮發性有機酸 및 脂肪酸含量에 關한 硏究

鄭基宅 충북대학교 엽연초연구소 1986 煙草硏究 Vol.12 No.-

This study was conducted to investigate the influence of some factors, i.e. type, variety stalk position, leaf part, physiological maturity and topping, on the contents of nonvolatile organic and higher fatty acid, and to analyze the correlation among acids of tobacco leaves. The results obtained are summarized as follows; 1.Total analyzed acid (TAA) and total nonvolatile organic acid(TNOA) contents of burley tobacco leaf were higher than those of flue-cured tabacco at early flowering stage, while total higher fatty acid(THFA) content showed little differences between the types of tabacco. the predomina nonvolatile organic acid was malic acid in flue-cured tobacco, but citric acid in burley tobacco. 2.TNOA and malic acid contents were decreased with ascending stalk position, while THFA, linolen acid, linoleic acid and oleic acid contents were increased. 3.TAA and oxalic acid contents of lamina were lowest in the middle among three leaf parts. There was little difference between the TAA content of midrib and lamina, but THFA, palmitic acid, oleic acid, linoleic acid and linolenic acid contents of lamina were much higher than those of midrib. Malic acid content of midrib was higher than that of limina. Proportion of malic acid to TAA content in midrib were 85.1% in NC 2326 and 67.9% in Burley 21. 4.TAA, TNOA and THFA showed maximum contents at early flowering stage, and thereafter, those contents were gradually reduced, and the reduced rate of THFA content was greater than that of TNOA content. After the late flowering stage linolenic acid content was markedly decreased, but linoleic acid content was increased. 5.TAA, THFA and linolenic acid contents were highest at the early flowering stage, but TNOA and malic acid contents at harvesting time over all stalk positions. 6.The lower the topping height was, the lower the TAA, TNOA, THFA, malic acid, stearic acid, and linoleic acid contents in middle and upper leaves were. 7.TNOA content showed positive correlations with malic acid content in NC 2326, and with malic acid and citric acid contents in Burley 21, respectively. 8.There were positive correlations among oleic acid, linoleic acid, linolenic acid and THFA contents. Palmitic acid content showed positive correlations with oleic acid, linolenic acid, and THFA contents.

세계 담배이름의 유형에 따른 지역적 분포와 어원에 관한 연구

정기택,Jeong, Kee-Taeg 한국연초학회 2015 한국연초학회지 Vol.37 No.1

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)".

한국 거문도 주변 새우조망에 어획된 새우류의 종조성과 계절변동

오택윤 ( Taeg Yun Oh ),김주일 ( Joo Il Kim ),고정락 ( Jeong Lag Koh ),차형기 ( Hyung Kee Cha ),이주희 ( Ju Hee Lee ) 한국어업기술학회 2003 수산해양기술연구 Vol.39 No.1

釜山大學校 학생 써클활동 實態와 그 運營改善方案에 관한 調査硏究

李衡基,李成海,李大雨,鄭榮洪,林再澤 부산대학교 학생생활연구소 1983 硏究報 Vol.19 No.1

The present study deals with student circle activities at Pusan National University in an effort to improve student circle guidance. University circles are regarded as influencing an individual's self-growth. Two sources of data were used for this research. A total of 764 students at Pusan National University who were randomly sampled out of the registered students in 1982 Spring semester were the main subjects. Another source for the study were from 70 student circle leaders whose responses to another questionaire in a special leader training session held on October of 1982. Student respondents for this study were analyzed in three groups;(1) students who participate in circle activities at the time of the research, (2) students who participated in a circle in the past but not active at the time of the questionaire interview, (2) students who have never been members of a circle. The student respondents who were or have been members of the circles in which they participate:social service circles;academic circles; circles for special hobbies; religious circles; athletic circles for special hobbies; anti-communism circles. Some of the important findings from this research are summarized in the following. (1) Pusan National University students enjoy more student circle activities as demonstrated in the sheer number of student circle activities registered in the Student Affairs Section of the University. Circles with friendship purpose seem to decline, while circles for special hobbies and academic purposes tend to increase. (2) Many students were found to drop out of the circle activity mainly due to the lack of the circle activity information before their participation in those circle. More coeds than male students show this tendency. (3) Student circle members with specific purpose and goal in mind before participating in those circle regard aircle activity as contributing to the self-growth. (4) Many respondents think that circle activities are vital and necessary in the campus life. However, they do not find proper circle to paticipate. (5) The role of the student circle guidance professors was found to be important. (6) Problems for funding the student circles and finding meeting places for the circle activity remain to be solved. In short, the present study underlines the importance of the activization student activities which can be achieved through intensive circle guidance by circle advice professor and proper funding.

황색종, 버어리종, 오리엔트종 원료엽 품질

정기택,Jeong, Kee-Taeg 한국연초학회 2008 한국연초학회지 Vol.30 No.1

삼국에 전래된 담배의 이름과 설화에서 동질성으로 본 한국 담배의 기원 연구

정기택,Jeong, Kee-Taeg 한국연초학회 2015 한국연초학회지 Vol.37 No.1

The purpose of this study was to establish the origin of Korea tobacco, by homogeneity of the names and folk tales for the tobaccos introduced among three countries. According to the literatures that had written the origin concerning tobacco during the survival period of the Korean author, Korea tobacco came from Japan, for the first time, in 1611~1612. Six year s after the tobacco was introduced, in 1617~1618, tobacco seed also came from Japan. And 10 year safter the tobacco was introduced, in 1621~1622, there was no person that do not smoke. The Korea tobacco name, Dambago(淡婆姑), was the same as Japan tobacco name, Dambago(淡婆姑), but it was not the same as China tobacco name, Tambaku(淡巴菰). The Korea tobacco's folk tale, Dambago(淡婆姑) story, was the same as Japan tobacco's folk tale, Dambago(淡婆姑) story, but it was not the same as China tobacco's folk tale, Tambaku(淡巴菰) or Banhonhyang(返魂香) stories. This finding suggests that Korea tobacco may surely came from Japan, considering homogeneities of the names and the folk tales in the tobaccos introduced among three countries.

한국 거문도 인근해역의 꽃새우, Trachysalambria curvirostris의 성숙과 성장

오택윤 ( Taeg Yun Oh ),최정화 ( Jung Hwa Choi ),차형기 ( Hyung Kee Cha ),김주일 ( Joo Il Kim ),고정락 ( Jeong Lag Koh ),이주희 ( Ju Hee Lee ) 한국어업기술학회 2003 수산해양기술연구 Vol.39 No.2

황색종 잎담배의 전당 함량이 화학성분, 연기 및 관능의 특성에 미치는 영향

정기택,조수헌,복진영,이종률,Jeong, Kee-Taeg,Cho, Soo-Heon,Bock, Jin-Young,Lee, Joung-Ryoul 한국연초학회 2007 한국연초학회지 Vol.29 No.1

This study was conducted to investigate the effect of the total sugar contents on chemical, smoke and sensory properties and to estimate the desirable chemical composition contents from sensory properties in flue-cured leaf tobacco. The leaves used in the study were in 2005 and in $1997{\sim}2006$ crop year. Nicotine and total nitrogen contents, filling value, impact, irritation and bitterness were reduced with increasing the total sugar contents of B2O(leaf) and C2L(cutters), whereas tar and CO contents and puff number were increased. The desirable sugar contents estimated from the best overall tobacco taste of smoke were 25.9% in B2O and 26.9% in C2L. All of regression equations among total sugar/nicotine ratio, total sugar, nicotine and total nitrogen contents were significant($p{\leqq}0.05$). There were no significant difference between the 4 grade(A2O, B2O, C2L, D2L) average and the whole plant(12 grade) average contents in total sugar, nicotine and total nitrogen contents. All of regression equations between the ratio of each grade content to the average content of twelve grades and stalk position[number ; from bottom(1) to top(12)] in total sugar, nicotine and total nitrogen contents were significant($p{\leqq}0.05$). The estimated desirable chemical properties which based on the best overall tobacco taste were 23.2% of total sugar, 2.39% of nicotine, 9.7 of total sugar/nicotine ratio, 2.57% of total nitrogen, 1.08 of total nitrogen/nicotine ratio in average of four grades. With decrease the total sugar content from 32.0% to 24.0%, filling value was enhanced by 14.1% in average of B2O and C2L, also tar and CO contents of smoke were decreased by 13.2% and 10.5%, respectively. These results suggest that the estimated desirable chemical composition contents may be useful to produce good leaf tobacco, and to enhance filling value and to reduce tar and CO contents of smoke in flue-cured leaf tobacco.

Changes of Chemical Constituents at Various Stages of Maturity for Flue-cured Tobacco

정기택,반유선,이정덕,Jeong, Kee-Taeg,Ban, Yoo-Sun,Lee, Jeong-Duk The Korean Society of Tobacco Science 1987 한국연초학회지 Vol.9 No.2

황색종 잎담배의 성숙과 노쇠 (이식후 50일부터 106일까지 )에 따른 생엽중 전분, 전당, 니코틴 및 전질소의 함량 변화와 이들 성분간의 관계를 조사한바, 전분함량은 두 품종 모두 각 엽위에서 성숙함에 따라 증가하였으나 노쇠함에 따라 감소하였다. 전질소 함량은 성숙함에 따라 감소하였으나 니코틴 함량 은 점점 증가하였다. 전당 함량은 성숙함에 따라 감소하는 경향이었다. 전분 함량은 전질소 함량과는 부의 상관을 보였으나 니코틴 함량과는 정의 상관이 인정되었다. 전질소 함량과 니코틴 함량은 부의 상관이 인정되었다. 그러므로 수확기를 관행보다 5-7일 늦추는 것은 건엽에서 환원당과 니코틴의 비를 더 좋게 하는 방법일 것이다. This study was conducted to investigate the change of starch, total sugar, nicotine, and total nitrogen contents in green leaves at various stages of maturity(50-106 days after transplanting), and to relate between chemical constituents for flue-cured tobacco (Cv NC82 and BY 4). For the two cultivars and all stalk positions, starch contents increased with maturation, but decreased with senescence. Nicotine contents increased, while total nitrogen contents decreased with delay of harvest. Total sugar contents had a tendency of decrease. For the two cultivars , starch correlated negatively with total nitrogen, and positively with nicotine. Total nitrogen correlated negatively with nicotine. A delay of 5 to 7 days than conventional harvesting time would reach to the better ratio of the reducing sugar to nicotine ratio.

기상요인에 의한 황색종 잎담배의 이화학적 특성 예측

정기택,조수헌,복진영,이종률,Jeong, Kee-Taeg,Cho, Soo-Heon,Bock, Jin-Young,Lee, Joung-Ryoul 한국연초학회 2007 한국연초학회지 Vol.29 No.1

This study was conducted in order to predict the chemical and physical properties by climatic factors during the growing season of flue-cured tobacco as soon as possible. The data of eight chemical and five physical properties were collected from "Analysis of physical and chemical properties on farm leaf tobacco" conducted at KT&G Central Research Institute from 1987 through 2006. Data of climatic factors from April to July in 10 districts were collected from Korea Meteorological Adminstration. Except for yellowness(b), all probabilities of linear regression equations between the climatic factors(X) and the average contents of twelve grades(whole plant) for chemical and physical properties(Y) were significant($P{\leq}0.05$). The predicable probabilities within ${\pm}20%$ range of difference were 100% in ether extract content, in nicotine content, and in filling value, 90% in total nitrogen content, and 70% in total sugar content. These results suggest that the regression equations may be useful to predict the average content of twelve grades for eight chemical and four physical properties by climatic factors during the growing season of flue-cured tobacco at the beginning of August.