Extraction of oil and beta-sitosterol from peach (Prunus persica) seeds using supercritical carbon dioxide

Ekinci M. S., GÜRÜ M.

JOURNAL OF SUPERCRITICAL FLUIDS, cilt.92, ss.319-323, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 92
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.supflu.2014.06.004
  • Dergi Adı: JOURNAL OF SUPERCRITICAL FLUIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.319-323
  • Anahtar Kelimeler: Prunus persica seed, beta-Sitosterol, Phytosterol, Supercritical fluid extraction, FLUID EXTRACTION, PHYTOSTEROLS, STEROLS
  • Gazi Üniversitesi Adresli: Evet

Özet

Oil was extracted from the peach (Prunus persica) seeds by supercritical carbon dioxide. Principal phytosterols (stigmasterol, campesterol and beta-sitosterol) that have been known to have cholesterol lowering properties were investigated in the extracted oil. Based on gas chromatography-mass spectrometry (GC-MS) analysis, beta-sitosterol was identified in the peach seed oil. The effects of temperature, pressure, flow rate of supercritical CO2, mean particle size of the seeds and extraction time on the amounts of extracted oil and beta-sitosterol were investigated. Supercritical fluid extractions were performed in a range of 35-55 degrees C, 160-240 bar, 4-8 ml CO2/min, 0.3-1.7 mm and 1-4 h for mentioned parameters. The results indicated that the amounts of oil and beta-sitosterol extracted from the peach seeds were optimal with values of 35.3 g/100 g seed and 1220 mg/kg seed respectively at 40 degrees C, 200 bar, 7 ml/min, 0.3 mm and 3 h. (C) 2014 Elsevier B.V. All rights reserved.