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Résumé :
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The composition of the essential oils from rootstock of Nuphar pumilum has been investigated by capillary GC and GC/MS. In the case of the essential oils of N. pumilum, two chemotypes, Type A (Takasago Yakugyou) and Type B (Yamada Yakkyoku), were observed relative to their contents of elemental sulfur. Type A contained 51 components of which 16.1% were elemental sulfur (S6, S7, S8). The main components were cyclo-S8 (13.0%), methyl palmitate (10.1%), methyl linoleate (10.1%), paeonol (7.3%) and β-eudesmol (6.2%). Type B contained 77 components of which 0.6% was elemental sulfur (S8). The main components were paeonol (32.5%), eugenol (4.9%), menthol (3.6%), furfural (3.2%) and β-eudesmol (2.6%).
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