Chemical composition and major odor-active compounds of essential oil from PINELLIA TUBER (dried rhizome of Pinellia ternata) as crude drug.
The chemical composition of the essential oil from PINELLIA TUBER (Japanese name: Hange), the dried rhizome of Pinellia ternata, was investigated by capillary gas chromatography (GC) and GC-mass spectrometry (MS) analyses. The oil obtained from Pinellia tuber was revealed the presence of 114 compounds, representing 90.6% of the total oil identified. This colorless oil had a spicy and woody odor. The main components of the oil were β-cubebene (8.8%), atractylon (7.8%), methyl eugenol (6.2%), and δ-cadinene (5.3%). Fifteen major odor-active compounds were identified in the essential oil from PINELLIA TUBER by the GC-olfactometry (GC-O) and aroma extract dilution analysis (AEDA). Among these, safrole (spicy) and β-vatirenene (woody) showed the highest flavor dilution (FD) factor (128), followed by paeonol (FD = 64; woody, spicy), α-humulene (FD = 64; woody), and β-phenylnaphthalene (FD = 64; spicy).
Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University.
Megumi
M
Iwasa
Toshiki
T
Iwasaki
Toshirou
T
Ono
Mitsuo
M
Miyazawa
D000098:Acetophenones / Q000032:analysis; D002849:Chromatography, Gas; D005054:Eugenol / Q000031:analogs & derivatives / Q000032:analysis; D008401:Gas Chromatography-Mass Spectrometry; D000081222:Monocyclic Sesquiterpenes; D009812:Odorants / Q000032:analysis*; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification; D030021:Pinellia / Q000737:chemistry*; D018517:Plant Roots; D012451:Safrole / Q000032:analysis; D012717:Sesquiterpenes / Q000032:analysis*
D000098:Acetophenones; D000081222:Monocyclic Sesquiterpenes; D009822:Oils, Volatile; D012717:Sesquiterpenes; C005223:methyleugenol; C013638:paeonol; D005054:Eugenol; C042686:humulene; C046196:atractylon; D012451:Safrole