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<p>This study used fractional distillation to separate citronellal and geraniol from citronella (<italic>Cymbopogon winterianus</italic>) essential oil to improve their market value. The one-factor-at-a-time methodology investigated operating parameters’ optimum conditions and effects, including system pressure, packing types, and column height. All investigations were evaluated based on their main fraction’s citronellal and geraniol content and recovery. Regarding the effect of the variables, a higher system pressure improved the separation while increasing the temperature range of each fraction and distillation time. The packing types would also improve the separation by providing a large surface area. Finally, the column height also positively impacted the separation. In the optimum citronella oil fractionation, citronellal content experienced a 2.5-fold increase, from 37.68% to 94.33%. Geraniol purity reached 40.61% from an initial content of 17.33% in the raw CW oil. The distillation could recover up to 90.00% of citronellal and 68.18% of geraniol.</p>
</abstract>

This study used fractional distillation to separate citronellal and geraniol from citronella (Cymbopogon winterianus) essential oil to improve their market value. The one-factor-at-a-time methodology investigated operating parameters’ optimum conditions and effects, including system pressure, packing types, and column height. All investigations were evaluated based on their main fraction’s citronellal and geraniol content and recovery. Regarding the effect of the variables, a higher system pressure improved the separation while increasing the temperature range of each fraction and distillation time. The packing types would also improve the separation by providing a large surface area. Finally, the column height also positively impacted the separation. In the optimum citronella oil fractionation, citronellal content experienced a 2.5-fold increase, from 37.68% to 94.33%. Geraniol purity reached 40.61% from an initial content of 17.33% in the raw CW oil. The distillation could recover up to 90.00% of citronellal and 68.18% of geraniol.

Isolation of citronellal and geraniol from citronella (<italic>Cymbopogon winterianus</italic>) oil by vacuum fractional distillation: Effect of operating conditions on the separation

Ho Chi Minh University of Technology (HCMUT)

Vietnam National University Ho Chi Minh City (VNU-HCM)

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution 4.0 International License.

Isolation of citronellal and geraniol from citronella () oil by vacuum fractional distillation: Effect of operating conditions on the separation

This study used fractional distillation to separate citronellal and geraniol from citronella (Cymbopogon winterianus) essential oil to improve their market...

Isolation of citronellal and geraniol from citronella (Cymbopogon winterianus) oil by vacuum fractional distillation: Effect of operating conditions on the separation

Publié en ligne: 11 janv. 2024

Pages: 67 - 80

DOI: https://doi.org/10.2478/pjct-2023-0040

Mots clés
citronellal, geraniol, vacuum, fractional distillation, citronella oil

© 2023 Minh-Trung Le et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Isolation of citronellal and geraniol from citronella (Cymbopogon winterianus) oil by vacuum fractional distillation: Effect of operating conditions on the separation

Publié en ligne: 11 janv. 2024

Pages: 67 - 80

DOI: https://doi.org/10.2478/pjct-2023-0040

Mots cléscitronellal, geraniol, vacuum, fractional distillation, citronella oil

© 2023 Minh-Trung Le et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
citronellal, geraniol, vacuum, fractional distillation, citronella oil