Hydrodistillation extraction time effect on essential oil yield, composition, and bioactivity of coriander oil

Valtcho D. Zheljazkov, Tess Astatkie, Vicki Schlegel

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Coriander (Coriandrum sativum L.) is a major essential oil crop grown throughout the world. Coriander essential oil is extracted from coriander fruits via hydrodistillation, with the industry using 180-240 min of distillation time (DT), but the optimum DT for maximizing essential oil yield, composition of constituents, and antioxidant activities are not known. This research was conducted to determine the effect of DT on coriander oil yield, composition, and bioactivity. The results show that essential oil yield at the shorter DT was low and generally increased with increasing DT with the maximum yields achieved at DT between 40 and 160 min. The concentrations of the low-boiling point essential oil constituents: α-pinene, camphene, β-pinene, myrcene, para-cymene, limonene, and γ-terpinene were higher at shorter DT (< 2.5 min) and decreased with increasing DT; but the trend reversed for the high-boiling point constituents: geraniol and geranyl-acetate. The concentration of the major essential oil constituent, linalool, was 51% at DT 1.15 min, and increased steadily to 68% with increasing DT. In conclusion, 40 min DT is sufficient to maximize yield of essential oil; and different DT can be used to obtain essential oil with differential composition. Its antioxidant capacity was affected by the DT, with 20 and 240 min DT showing higher antioxidant activity. Comparisons of coriander essential oil composition must consider the length of the DT.

Original languageEnglish (US)
Pages (from-to)857-865
Number of pages9
JournalJournal of Oleo Science
Volume63
Issue number9
DOIs
StatePublished - Jan 1 2014

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Keywords

  • Coriandrum sativum
  • Essential oil content
  • Hydrodistillation
  • Linalool

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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