Abstract
Eucalyptus is expressed as huge potentials for Ethiopian climatic conditions. Looks for quality of essential oils was an aim for this study. Hydro distillations of fresh leaves were yielded 1.75% (E. globulus) and 2.00% (E. citriodora) essential oils. Major compounds with 1, 8-Cineole (77.24%) and α-Pinene (10.54%) were indentified from E. globules essential oil. Eucalyptus citriodora essential oil was abundant with Citronellal (73.86%) and Citronellol (14.13%). The results of DPPH assay indicated that weak free radical scavenging activities with IC50 value of 795.42 mg/mL for E. globulus, 169.64 mg/mL for E. citriodora and 0.577 mg/mL for the reference Ascorbic acid. The overall quality of E. globules and E. citriodora essential oils are comply the international specifications.
Highlights
Eucalyptus is the genus native to Australia with family Myrtaceae, comprises over 700 species [1] and cultivated worldwide as a purpose of fuel wood, timber, pulp, essential oil, gum, medicine and aesthetic value
The abundance of Eucalyptus globulus Labill (Blue gum or Tasmanian blue gum) in Ethiopia is linked to the establishment of Addis Ababa city and occurrence of fuel wood shortage in the year 1894-1895
Hydro distillations of fresh leaves of Eucalyptus acquired an essential oil yield (v/w) of 1.75% (E. globulus) and 2.00% (E. citrodora). This result is in agreement with the work reported by Bachheti [9], E. globulus located at eastern part of Ethiopia yielded 1.21% and Silva et al [10], from Brazil origin obtained an average yield of 1.07% and 1.7% for E. globulus and E. citriodora, respectively
Summary
Eucalyptus is the genus native to Australia with family Myrtaceae, comprises over 700 species [1] and cultivated worldwide as a purpose of fuel wood, timber, pulp, essential oil, gum, medicine and aesthetic value. Plantation of Eucalyptus was taken as a solution by initiating the idea of two French key persons, Mondon-Vidaillet and O'Brien who were proposed to emperor Menilik II. It is known as "Nech bahirzaf" and expected to established plantation over 100,000 hectares [2]. Eucalyptus citriodora (Lemon scented gum) had expected to be established at Wendo Genet Agricultural Research Center before five decade years by Belgium investors for perfumery essential oil production.
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