atractylon and paeonol

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).

Topics: Acetophenones; Chromatography, Gas; Eugenol; Gas Chromatography-Mass Spectrometry; Monocyclic Sesquiterpenes; Odorants; Oils, Volatile; Pinellia; Plant Roots; Safrole; Sesquiterpenes

The composition of the essential oils from rootstock of Cimicifuga simplex has been investigated by capillary GC and GC/MS. The main components in essential oil were m-acetanisole (27.57%), (E)-cinnamaldehyde (6.84%), paeonol (5.58%), caproic acid (5.07%) and atractylone (3.10%). The oil was characterized by a high content of aromatic components (52.59%).

Topics: Acetophenones; Acrolein; Anisoles; Caproates; Cimicifuga; Gas Chromatography-Mass Spectrometry; Oils, Volatile; Plant Roots; Sesquiterpenes