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Pregled bibliografske jedinice broj: 895719

Enzymatic esterification of pre-treated and untreated acid oil soapstock


Borges, Joao; Alvim-Ferraz, Conceicao; Almeida, Manuel F.; Dias, Johana Maia; Budžaki, Sandra
Enzymatic esterification of pre-treated and untreated acid oil soapstock // WASTES – Solutions, Treatments and Opportunities II: Selected Papers from the 4th Edition of the International Conference on Wastes: Solutions, Treatments and Opportunities / Vilarinho, Candida ; Castro, Fernando ; de Lurdes Lopes, Maria (ur.).
London: CRC Press (Taylor & Francis Group), 2017. str. 241-246 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
Enzymatic esterification of pre-treated and untreated acid oil soapstock

Autori
Borges, Joao ; Alvim-Ferraz, Conceicao ; Almeida, Manuel F. ; Dias, Johana Maia ; Budžaki, Sandra

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
WASTES – Solutions, Treatments and Opportunities II: Selected Papers from the 4th Edition of the International Conference on Wastes: Solutions, Treatments and Opportunities / Vilarinho, Candida ; Castro, Fernando ; de Lurdes Lopes, Maria - London : CRC Press (Taylor & Francis Group), 2017, 241-246

ISBN
9781138196698

Skup
4th International Conference on Wastes: Solutions, Treatments and Opportunities

Mjesto i datum
Porto, Portugal, 25-26.9.2017.

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Estarification, transesterification, soapstock oil, lipase

Sažetak
The soapstock oil presents high free fatty acid (FFA) content, being potentially a sustaina-ble alternative feedstock for biodiesel production. In the present work, enzymatic esterifi-cation using a suspension of Thermomyces lanuginosus lipase was conducted on pre-treated and untreated acid oil from soapstock derived from the refining of vegetable oil mixtures. The enzyme suspension was prepared by mixing it with a 1 M phosphate buffer (1:10 V/V, enzyme:buffer). Esterification was conducted in an orbital shaking incubator at 40.0 ºC using a molar ratio of acid to methanol of 1:3, during 24 h at 200 rpm ; monitoring was performed at 0, 7 and 24 h. Around 80% FFA reduction was obtained us-ing raw and pre-treated oil, showing that the use of suspended enzyme avoids the need for pretreatment. Fatty Acid Methyl Ester content was determined, indicating that both esterification and transesterification occurred.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Biotehnologija, Prehrambena tehnologija



POVEZANOST RADA


Ustanove
Prehrambeno-tehnološki fakultet, Osijek

Autor s matičnim brojem:
Sandra Budžaki, (232430)