Frangrance and Chemical Composition of Essential Oil in Cone of Metasequoia (Metasequoia glyptostroboides Hu et Cheng)

메타세콰이아(Metasequoia glyptostroboides)의 구과로부터 수증기증류법을 이용하여 정유를 추출하였고, 정유의 향취를 분석하였으며 이에 함유되어 있는 휘발성 화학성분을 solid-phase microextraction 장치가 장착된 gas chromatography-mass spectrometry를 이용하여 분석하였다. 메타세콰이아의 구과에 함유된 정유는 0.4%이었다. 정유의 주향취는 woody, coniferous, herbal이었으며, 부향취는 minty, spicy, oily이었다. 정유에는 총 9종의 휘발성 유기화합물이 함유되어 있었는데 이들을 화학성분별로 구분하면 탄화수소가 8종 그리고 옥사이드가 1종이었다. 정유에 함유된 휘발성 유기화합물은 limonene(66.18%), ${\delta}$ -3-carene(11.11%), ${\beta}$ -caryophyllene(6.66%), ${\beta}$ -myrcene(5.92%), ${\beta}$ -pinene(4.14%), caryophyllene oxide (2.39%), camphene(2.32%), ${\alpha}$ -caryophyllene(0.85%), tricyclene(0.43%)이었다. 메타세콰이아 구과로부터얻은 정유의 herbal과 minty 향취는 limonene과 ${\delta}$ -3-carene, spicy 향취는 caryophyllene, coniferous 향취는 ${\alpha}$ -pinene과 ${\beta}$ -pinene, oily 향취는 camphene에 의해 발현된 것이라 판단된다. Essential oil was extracted from cones of metasequoia (Metasequoia glyptostroboides) by steam distillation, fragrance was determined by sensorial analysis and chemical compositions were analyzed by gas chromatography-mass spectrometry with solid-phase microextraction apparatus. Metasequia contained 0.40% of essential oil in the cone. Major impact fragrances of the essential oil were woody, coniferous and herbal, and minor impact fragrances were minty, spicy and oily. There were nine constituents in the essential oil : 8 hydrocarbons and 1 oxide. Constituents were limonene (66.18%), ${\delta}$ -3-carene (11.11%), ${\beta}$ -caryophyllene (6.66%), ${\beta}$ -myrcene (5.92%), ${\beta}$ -pinene (4.14%), caryophyllene oxide (2.39%), camphene (2.32%), ${\alpha}$ -caryophyllene (0.85%), and tricyclene (0.43%). Herbal and minty frangrances could be due to limonene and ${\delta}$ -3-carene, spicy frangrance to caryophyllene, woody and coniferous frangrances to ${\alpha}$ -pinene and ${\beta}$ -pinene, and oily fragrance to camphene.