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2020, vol. 45, br. 3, str. 70-81
Efekti promene varijabli obrade ulja iz semena Sendbox (Hura crepitans Linn.) - mehaničko izdvajanje
aUniversity of Uyo, Faculty of Engineering, Department of Agricultural and Food Engineering, Uyo, Nigeria
bUniversity of Ibadan, Faculty of Technology, Department of Agricultural and Environmental Engineering Ibadan, Nigeria
Ključne reči: Sendbox seme (Hura crepitans Linn.); prerada; ekspresija; ekstrakcija ulja
Sažetak
Troškovi metoda ekstrakcije ulja učinili su mehaničku ekspresiju ulja poželjnom alternativom. Izvršeno je ispitivanje uticaja obrade promenljivih parametara na mehaničku izdvajanje ulja semena Sendbox (Hura crepitans Linn.). Eksperimentalni dizajn korišćen za ovu studiju ima 52 Centralnu kompozitnu rotabilnu površinsku dizajn metodologiju. Eksperimentalni faktori koji su uzeti u obzir bili su: sadržaj vlage, temperatura, i vreme zagrevanja, pritisak izlaganja i vreme ekspresije. Dizajn metodologije površinske reakcije usvojen za eksperiment je a0.05. Najveći prinos ulja semena Sendbox (Hura crepitans Linn.), povećan je, i kretao se u rasponu od 16,38 do 38,68% kod sadržaja vlage od 4,0 do 8,0%; temperature zagrevanja od 80,0 do 100,0°C; vremena zagrevanja od 5,0 do 15,0 min; pritiska izdvajanja od 15,0 do 20,0 MPa , za vreme ekstrakcije od 6.0 do 8.0 min. Maksimalni prinos ulja od 38,68% je dobijen u uslovima prerade kod 6% sadržaja vlage semena, temperature zagrevanja 85°C, sa 15 minuta zagrevanja i ekspresijskog pritiska od 20 MPa, i 8 minuta izdvajanja ili presovanja. Razvijen je model jednačine koja povezuje promenljive procesa sa prinosom ulja. Koeficijent determinacije (R2), koji se odnosi na ovaj process, bio je 0,8908. Rezultati pokazuju da sadržaj vlage, vreme zagrevanja, pritisak izdvajanja i vreme ekspresije imaju značajan uticaj na prinos ulja semena Sendbox (Hura crepitans Linn.). Rezultati dobijeni u ovoj studiji mogu poslužiti za dizajn procesa i opreme za ekstrakciju ulja iz semenki Senbox i drugih semenki ulja i orašastih plodova.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5937/PoljTeh2003070N
objavljen u SCIndeksu: 09.10.2020.

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