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

• DOI: 10.2478/s11532-014-0532-4
• Publication Date: 2014-02-20T12:42:19Z
• Authors: Ioan Calinescu; Adina Gavrila; Maria Ivopol; Gabriel Ivopol; Mariana Popescu; Nectara Mircioaga
• Keywords: Lavandula angustifolia; Lavandula; Linalyl acetate; Lavender oil

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