Microwave assisted extraction of essential oils from enzymatically pretreated lavender (Lavandula angustifolia Miller)

• Authors: Ioan Calinescu , Adina Gavrila , Maria Ivopol , Gabriel Ivopol , Mariana Popescu , Nectara Mircioaga
• Languages of publication: EN

Abstracts

EN

In this study, microwave assisted a hydrodistillation process (MWHD) of essential oils from lavender (Lavandula angustifolia Miller) was investigated. In order to examine any potential differences in essential oil extraction, the lavender flowers underwent enzymatic pretreatment.A 23 factorial design of experiments, combined with statistical methods of data analysis were used to optimize enzymatic pretreatment and to evaluate the influence of major variables (enzyme concentration, temperature and pH) on the performance of the microwave assisted extraction.Under optimal conditions, an extraction yield of 24 mg oil g−1 substrate was achieved (an increase by approximately 25% in comparison with the classic extraction conditions of conventional hydrodistillation).The main compounds of the essential oils obtained were analyzed and identified by gas chromatography coupled to mass spectrometry (GC-MS). Analyzing the data obtained indicated that the content of main compounds (linalool and linalyl acetate − 73%) was greater than that obtained by conventional extraction (67%).

Keywords

EN

Lavender oil; Hydrodistillation; Enzymatic pretreatment

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2014
• Volume: 12
• Issue: 8
• Pages: 829-836

Dates

published

1 - 8 - 2014

online

1 - 5 - 2014

Contributors

author

Ioan Calinescu

• University Politehnica of Bucharest

author

Adina Gavrila

• University Politehnica of Bucharest

author

Maria Ivopol

author

Gabriel Ivopol

author

Mariana Popescu

author

Nectara Mircioaga

• University Politehnica of Bucharest

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Identifiers

DOI

10.2478/s11532-014-0532-4