Naslov
Central composite experimental design and fatty acids profile determination of soybean oil obtained by supercritical CO2 extraction

Autori
Lukinac, Jasmina ; Velić, Darko ; Bilić, Mate ; Vidović, Senka ; Bucić-Kojić, Ana ; Molnar, Maja ; Jokić, Stela

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
22nd International Scientific-Expert Conference of Agriculture and Food Industry. Book of Abstracts / - , 2011

Skup
22nd International Scientific-Expert Conference of Agriculture and Food Industry

Mjesto i datum
Sarajevo, Bosna i Hercegovina, 28.09.2011. - 01.10.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Supercritical CO2 extraction; Soybean oil; Response surface methodology; Fatty acids

Sažetak
Response surface methodology (RSM) with central composite rotatable design (CCRD) was applied to optimize the process parameters of supercritical CO2 extraction of soybean oil in the experimental range 11.6- 28.4 MPa, temperature 37-53 °C and during the extraction time of 4.7 h. The statistical analysis showed that the linear term of pressure and extraction time, the quadratics of the pressure, the interaction between pressure and extraction time, as well as the interaction between temperature and pressure had significant effects on the oil yield. The optimal extraction conditions within the experimental range were extraction temperature of 50 °C, pressure of 25 MPa and extraction time of 4 h. The experimental values agreed with those predicted, thus indicating suitability of the model employed and the success of response surface methodology for optimising supercritical CO2 extraction of soybean oil. The chemical composition of soybean oil was analysed by gas chromatography. The main fatty acids were linoleic acid (51.49%), oleic acid (23.60%), palmitic acid (12.68%), stearic acid (5.87%) and linolenic acid (5.34%).

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA