Research Article
Received: 2023-02-18 | Revised:2023-03-23 | Accepted: 2023-03-27 | Published: 2023-04-04
Pages: 104-114
DOI: https://doi.org/10.58985/jeopc.2023.v01i02.15
Abstract
As part of Corymbia citriodora's national essential
oil project, a seed orchard was set up to support growers’ activity. This study
aims to assess the essential oil production performance of this orchard.
Essential oils extracted by hydrodistillation were analyzed by GC/MS and
results were processed by multivariate statistical methods (PCA, HCA) to assess
the homogeneity of the future seeds chemotype.
The extraction process was modeled by the design of the experiment (DoE)
to explore the possibilities of its optimization. The essential oil produced,
with maximum yields of 4 %, consisted of citronellal, citronellol and
isopulégols, at more than 90 % with a maximum of citronellal content around 80
%. In the laboratory scale, distillation time and hydrodistillation method have
positive effects on yield, while the settlement of plant material in the
distiller had a negative effect. The citronellal content was less sensitive to
factor effects. The Corymbia citriodora
oil content in Congo ranged from 1.5 to 7.0 %. With a maximum yield of 4 %, the
orchard trees produced twice much oil as those of the project stations, and
suggest a fast improvement after optimization of sylviculture and extraction.
The identified citronella chemotype (citronellal (69-84 %), isopulegol isomers
(5-25 %) and citronellol (5-12 %)) met the needs of the market. By current
standards, it was an excellent quality oil produced in a low-cost way.
Keywords
Corymbia citriodora,
seed orchard, chemotype, modeling, optimization, Congo
References
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This work is licensed under the
Creative Commons Attribution
4.0
License (CC BY-NC 4.0).
Abstract
As part of Corymbia citriodora's national essential
oil project, a seed orchard was set up to support growers’ activity. This study
aims to assess the essential oil production performance of this orchard.
Essential oils extracted by hydrodistillation were analyzed by GC/MS and
results were processed by multivariate statistical methods (PCA, HCA) to assess
the homogeneity of the future seeds chemotype.
The extraction process was modeled by the design of the experiment (DoE)
to explore the possibilities of its optimization. The essential oil produced,
with maximum yields of 4 %, consisted of citronellal, citronellol and
isopulégols, at more than 90 % with a maximum of citronellal content around 80
%. In the laboratory scale, distillation time and hydrodistillation method have
positive effects on yield, while the settlement of plant material in the
distiller had a negative effect. The citronellal content was less sensitive to
factor effects. The Corymbia citriodora
oil content in Congo ranged from 1.5 to 7.0 %. With a maximum yield of 4 %, the
orchard trees produced twice much oil as those of the project stations, and
suggest a fast improvement after optimization of sylviculture and extraction.
The identified citronella chemotype (citronellal (69-84 %), isopulegol isomers
(5-25 %) and citronellol (5-12 %)) met the needs of the market. By current
standards, it was an excellent quality oil produced in a low-cost way.
Abstract Keywords
Corymbia citriodora,
seed orchard, chemotype, modeling, optimization, Congo
This work is licensed under the
Creative Commons Attribution
4.0
License (CC BY-NC 4.0).
Editor-in-Chief
This work is licensed under the
Creative Commons Attribution 4.0
License.(CC BY-NC 4.0).