Enzymatic esterification of pre-treated and untreated acid oil soapstock (CROSBI ID 652482)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Borges, Joao ; Alvim-Ferraz, Conceicao ; Almeida, Manuel F. ; Dias, Johana Maia ; Budžaki, Sandra
engleski
Enzymatic esterification of pre-treated and untreated acid oil soapstock
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.
estarification ; transesterification ; soapstock oil ; lipase
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Podaci o prilogu
241-246.
2017.
objavljeno
Podaci o matičnoj publikaciji
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 : Delhi: CRC Press ; Taylor & Francis
978-1138196698
Podaci o skupu
4th International Conference on Wastes: Solutions, Treatments and Opportunities
predavanje
25.09.2017-26.09.2017
Porto, Portugal