Composition of Leaf Surface Lipid in Flue-cured Tobacco and Their Changes during Flue-curing

황색종 잎담배의 엽면지질 성분 조성 및 건조중 변화

  • 지상운 (한국인삼연초연구원 분석부) ;
  • 김도연 (한국인삼연초연구원 분석부) ;
  • 이문용 (한국인삼연초연구원 분석부) ;
  • 김영희 (한국인삼연초연구원 분석부) ;
  • 신승구 (한국인삼연초연구원 음성시험장)
  • Published : 1997.06.01

Abstract

The composition of leaf surface lipid in Flue-cured tobacco and their changes during curing was investigated. The flue-cured variety, Nicotiana tabacum cv. NC 82 was cultivated at Eumsung experiment station in 1996. The samples of riced leaves with different stalk Position(Lugs, Cutter, Leaf and Tips) and different curing stage at half yellowing(24hr), yellowing(48 hr) , color axing(72 hr), midrib drying(96 hr) and cured(120 hr) were collected for analysis of leaf surface lipid. $\alpha$ - and $\beta$ - 4, 8, 13-Duvatriene-1, 3-diol($\alpha$, $\beta$-DVT) were major components in leaf surface lipid extracted with methylene chloride and sugar ester was detected slightly DVT content was increased with ascending stalk position, but increasing trend of total hydrocarbon was not observed. While DVT was decreased throughout curing of tobacco leaves, hydrocarbon content did not show significant change during curing process. Twenty-two duvane compounds were detected by capillary GC in duvane fraction isolated from leaf surface lipid and of which 11 compounds were identified by GC-MS. These compounds were decreased with curing in all stalk position.

Keywords

References

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