Effect of different drying methods on the essential oil yield, composition and antioxidant activity of Origanum vulgare L. and Origanum onites L.

Ozdemir N., ÖZGEN Y., KIRALAN M., Bayrak A., Arslan N., Ramadan M. F.

JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION, cilt.12, sa.2, ss.820-825, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 2
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1007/s11694-017-9696-x
  • Dergi Adı: JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.820-825
  • Anahtar Kelimeler: Oregano oil, DPPH, Antiradical activity, Sun drying, Oven drying, Shade drying, SOLID-PHASE MICROEXTRACTION, CHEMICAL-COMPOSITION, VOLATILE COMPOUNDS, PHENOLIC-COMPOUNDS, BLACK CUMIN, INHIBITION, CAPACITY, DPPH, TIME
  • Ankara Üniversitesi Adresli: Evet

Özet

Origanum onites and Origanum vulgare are important medicinal plants because of their flavoring, therapeutic, and preservative properties. Drying methods are important for obtaining high quality essential oil from spices. In this study, the effects of different drying processes on the essential oil yield, composition, and antiradical activity were evaluated. Plants were dried under sun light, in a ventilated shady place and in laboratory-type oven, and the oils were extracted with Clevenger type apparatus. Carvacrol and thymol were the major compounds in the essential oils of O. vulgare and O. onites, respectively. The highest oil yield and the highest antioxidant activity values were obtained from shade dried Origanum species followed by oven dried plants. The lowest essential oil yield and the lowest antioxidant activity for O. vulgare were found in fresh plants. The lowest essential oil yield, and the lowest antioxidant activity for O. onites belonged to sun dried plants. It could be concluded that essential oil yield, oil composition and antioxidant activity of both plants were greatly affected by the drying method.