Comparison of conventional steam distillation and industrial-type microwave-assisted distillation systems for lavandin (Lavandula × intermedia Emeric Ex Loisel): Energy consumption, essential oil yield, and quality

Doğan H., GENÇ A., TELCİ İ.

Journal of Essential Oil-Bearing Plants, cilt.28, sa.1, ss.126-139, 2025 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Sayı: 1
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1080/0972060x.2025.2451392
  • Dergi Adı: Journal of Essential Oil-Bearing Plants
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.126-139
  • Anahtar Kelimeler: Energy consumption, Essential oil composition, Essential oil yield (EOY), Lavandula, Microwave-assisted distillation
  • Isparta Uygulamalı Bilimler Üniversitesi Adresli: Evet

Özet

Lavandula essential oils are widely used in various industries, including cosmetics and aromatherapy, due to their therapeutic benefits. Lavandula × intermedia Emeric Ex Loisel, known for its high oil yield, is a preferred choice for production. However, conventional steam distillation (CD) methods suffer from prolonged processing times and high energy consumption. This study evaluates a microwave-assisted distillation (MWAD) system at industrial-scale, comparing it with the CD. The MWAD, tested with different powers and durations, showed up to a 10% increase in oil yield and a 50% reduction in distillation time compared to the CD. Additionally, the MWAD consumed 25% less energy, resulting in energy savings of 25-33%. Minor changes in essential oil components were observed with the MWAD, indicating its suitability for industrial applications. These findings demonstrate the potential of MWAD for efficient large-scale essential oil production.