Essential Oils of Etlingera elatior (Jack) R. M. Smith and Etlingera littoralis (Koenig) Giseke
2010; Taylor & Francis; Volume: 22; Issue: 5 Linguagem: Inglês
10.1080/10412905.2010.9700372
ISSN2163-8152
AutoresK. C. Wong, Yasodha Sivasothy, Peng Lim Boey, Hasnah Osman, Baharuddin Sulaiman,
Tópico(s)Plant-derived Lignans Synthesis and Bioactivity
ResumoAbstract The essential oils obtained by hydrodistillation of the leaves, rhizomes and roots of Etlingera elatior (Jack) R. M. Smith and a white-flowered variety known as Thai queen, and Etlingera littoralis (Koenig) Giseke were analyzed by capillary GC and GC/MS. The oils of E. elatior were dominated by mono- and sesquiterpenoids, with the major components being myrcene (13.5%), α-humulene (11.8%) and β-caryophyllene (10.7%) in the leaf oil, and camphene (18.0%) and β-pinene (16.9%) in the oils from the rhizomes and roots, respectively. The oil profiles of the Thai queen cultivar were similar, except for a much higher level of α-pinene (24.4%) and a lower concentration of myrcene in the leaf oil, and markedly increased proportions of dodecanol and dodecanal in both the oil of the leaves (18.9% and 15.9%, respectively) and that of the rhizomes and roots (12.9% and 10.6%, respectively). The oils of E. littoralis were characterized by high levels of phenylpropanoids, principally (E)-methyl isoeugenol at 37.7% in the leaf oil and 58.1% in the oils from the rhizomes and roots, the complete absence of non-terpenic aliphatic alcohols and aldehydes, and the occurrence of 8(14), 15-sandaracopimaradien-3β-ol and 7, 15-isopimaradien-3β-ol. Key Word Index: Etlingera elatior Etlingera littoralis Zingiberaceaeessential oil compositioncampheneα-pineneβ-pinenedodecanoldodecanal(E)-methyl isoeugenol
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