Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana, J. Excelsa, and J. Sabina

Ivanka B. Semerdjieva, Santosh Shiwakoti, Charles L. Cantrell, Valtcho D. Zheljazkov, Tess Astatkie, Vicki L Schlegel, Tzenka Radoukova

Research output: Contribution to journalArticle

Abstract

The chemical profile and antioxidant capacity of Juniperus virginiana, J. excelsa, and J. sabina essential oil (EO) fractions as a function of time was the subject of this study. The hypothesis was that, capturing EO in sequential timeframes during hydrodistillation would generate fractions containing unique compositions and antioxidant capacity. In J. virginiana, the highest limonene (43%) was found in the 0–5 min oil fraction, with safrole (37%) being highest in the 10–20 and 20–40 min fractions, and elemol (34%) being highest in the 160–240 min fraction. In J. excelsa, α-pinene (34-36%) was the highest in the 0–5 min fraction and in the control (non-stop 0–240 min distillation) oil, limonene (39%) was the highest in the 0–10 min fractions and cedrol (50-53%) was the highest in the 40–240 min fractions. In J. sabina, sabinene (80%) was highest in the 0–3 min fraction. The highest antioxidant capacity of J. virginiana was demonstrated by the 5–10 min fraction; the one in J. sabina by the 3–10 min fraction; and, the one in J. excelsa, by the control. The kinetics regression models that were developed can predict EO composition of the three juniper species eluted at different timeframes. Various industries could benefit from the results from this study.

Original languageEnglish (US)
Article number986
JournalMolecules
Volume24
Issue number5
DOIs
StatePublished - Jan 1 2019

Fingerprint

Juniperus
Volatile Oils
regression analysis
Antioxidants
oils
Kinetics
Oils
kinetics
Safrole
Chemical analysis
Distillation
antioxidants
Industry
distillation
limonene

Keywords

  • Cedrol
  • Eastern red cedar
  • Elemol
  • Greek juniper
  • Limonene
  • Monoterpenes
  • Sabinene
  • Safrole
  • Savin
  • α-pinene

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemistry (miscellaneous)
  • Molecular Medicine
  • Pharmaceutical Science
  • Drug Discovery
  • Physical and Theoretical Chemistry
  • Organic Chemistry

Cite this

Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana, J. Excelsa, and J. Sabina. / Semerdjieva, Ivanka B.; Shiwakoti, Santosh; Cantrell, Charles L.; Zheljazkov, Valtcho D.; Astatkie, Tess; Schlegel, Vicki L; Radoukova, Tzenka.

In: Molecules, Vol. 24, No. 5, 986, 01.01.2019.

Research output: Contribution to journalArticle

Semerdjieva, Ivanka B. ; Shiwakoti, Santosh ; Cantrell, Charles L. ; Zheljazkov, Valtcho D. ; Astatkie, Tess ; Schlegel, Vicki L ; Radoukova, Tzenka. / Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana, J. Excelsa, and J. Sabina. In: Molecules. 2019 ; Vol. 24, No. 5.
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abstract = "The chemical profile and antioxidant capacity of Juniperus virginiana, J. excelsa, and J. sabina essential oil (EO) fractions as a function of time was the subject of this study. The hypothesis was that, capturing EO in sequential timeframes during hydrodistillation would generate fractions containing unique compositions and antioxidant capacity. In J. virginiana, the highest limonene (43{\%}) was found in the 0–5 min oil fraction, with safrole (37{\%}) being highest in the 10–20 and 20–40 min fractions, and elemol (34{\%}) being highest in the 160–240 min fraction. In J. excelsa, α-pinene (34-36{\%}) was the highest in the 0–5 min fraction and in the control (non-stop 0–240 min distillation) oil, limonene (39{\%}) was the highest in the 0–10 min fractions and cedrol (50-53{\%}) was the highest in the 40–240 min fractions. In J. sabina, sabinene (80{\%}) was highest in the 0–3 min fraction. The highest antioxidant capacity of J. virginiana was demonstrated by the 5–10 min fraction; the one in J. sabina by the 3–10 min fraction; and, the one in J. excelsa, by the control. The kinetics regression models that were developed can predict EO composition of the three juniper species eluted at different timeframes. Various industries could benefit from the results from this study.",
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