Experimental design for extraction of bio-oils from flax seeds under supercritical ethanol conditions

TEKİN K. , AKALIN M. K. , KARAGÖZ S.

CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY, cilt.18, ss.461-471, 2016 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 18 Konu: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/s10098-015-1021-y
  • Dergi Adı: CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
  • Sayfa Sayısı: ss.461-471

Özet

A central composite design was applied to the extraction of bio-oils from flax seeds under supercritical ethanol (Sc-EtOH) conditions. The effects of three factors (temperature, time, and biomass concentration) on bio-oil and biomass conversion yields were examined. Extraction temperature was statistically found to be the most significant factor which affected both bio-oil yield and biomass conversion. The predicted results matched the experimental results with the following coefficient of determination: (R (2)) 0.95 for bio-oil yield and 0.92 for biomass conversion yield. The composition of bio-oils consisted mainly of fatty acid ester derivatives, and other oxygenated hydrocarbons. Based on the relative concentrations of the compounds, the major compound was ethyl oleate.