Supercritical carbon dioxide treatment of the microalgae Nannochloropsis oculata for the production of fatty acid methyl esters
Küçük Resim Yok
Tarih
2016
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aim of this work was to evaluate the potential of supercritical carbon dioxide (CO2) to extract fatty acid methyl esters (FAME) from the microalgae Nannochloropsis oculata (N. oculata) at low temperatures (37 and 55 degrees C) and pressures (5.9 and 7.6 megapascals (MPa)). A qualitative gas chromatography (GC) analysis showed that the individual FAMEs extracted varied depending on the co-solvent (methanol or hexane) used with supercritical CO2. Using hexane, FAME compounds produced were similar to those extracted with soxhlet extraction alone while longer chain FAME were produced when methanol was the co-solvent. The effects of pressure and temperature variations were shown to be of statistical significance. The chromatograms produced in this work demonstrate that altering one of these parameters (co-solvent, temperature, pressure) can produce different compounds owing to the tunability of the technique. (C) 2016 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Supercritical fluids, Microalgae, Monounsaturated fatty acids, Polyunsaturated fatty acids, Biodiesel, Gas chromatography
Kaynak
Journal of Supercritical Fluids
WoS Q Değeri
Q1
Scopus Q Değeri
Cilt
116
