Naslov
Pressing and supercritical CO2 extraction of hazelnut, walnut and chia seed oil

Autori
Jokić, Stela ; Moslavac, Tihomir ; Aladić, Krunoslav ; Rot, Tomislav ; Bošnjak, Andreja ; Bijuk, Marco ; Adžić, Darko

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

Izvornik
Book of abstracts of International Scientific and Professional Conference 15th Ružička Days „Today Science – Tomorrow industry“ / - , 2014, 65-65

Skup
International Scientific and Professional Conference 15th Ružička Days „Today Science – Tomorrow industry“

Mjesto i datum
Vukovar, Hrvatska, 11.09.2014. - 12.09.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
walnut; hazelnut; chia; screw pressing; supercritical CO2 extraction; oil quality; tocopherols

Sažetak
In edible oil production it is very important to find an appropriate method to recover the oil from the seeds. The amount and quality of extracted oils are crucial for determining feasibility of commercial production. Recently, interest in the use of continuous, mechanical screw presses to recover oil from oilseeds arose. However, screw pressing will not extensively replace solvent extraction in commodity oilseeds. Oil extraction using supercritical fluids is an alternative method to replace conventional industrial process such as pressing and solvent extraction. Supercritical fluid extraction is still relatively new and is not widely used on the commercial scale for the extraction of edible oils mainly due to very high investment costs for equipment. But when considering industrial application, it is essential to provide research on the fundamentals of the supercritical processes.Accordingly, the aim of this work was to evaluate the oil extraction process from hazelnut, walnut and chia seeds by screw pressing followed by extraction with supercritical CO2. In obtained oils, the oil quality parameters such as peroxide value, free fatty acids, insoluble impurities, moisture content, iodine value, saponification value, p-anisidine value and Totox value were determined. The residual oil in the press cake was totally extracted by supercritical CO2 in newly designed and built supercritical fluid extraction system. Tocopherol content of pressed oil and oil extracted by supercritical CO2 were compared.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA