Optimization of the Production of Enzymatic Biodiesel from Residual Babassu Oil (Orbignya sp.) via RSM
| Autor: | Camila Peixoto do Valle, Gloria Fernández-Lorente, Pierre Basílio Almeida Fechine, Jose M. Guisan, Rodolpho R. C. Monteiro, José C. S. dos Santos, Katerine da Silva Moreira, Tiago M. Freire, Lourembergue Saraiva de Moura Junior, Maria Cristiane Martins de Souza, André L. B. de Oliveira |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Central composite design
020209 energy esterification Triacylglycerol lipase biodiesel 02 engineering and technology lcsh:Chemical technology 01 natural sciences Catalysis lcsh:Chemistry response surface methodology chemistry.chemical_compound 0202 electrical engineering electronic engineering information engineering lcsh:TP1-1185 Response surface methodology Physical and Theoretical Chemistry Biodiesel Chromatography Ethanol biology 010405 organic chemistry fungi Novozym® 435 biology.organism_classification Babassu oil 0104 chemical sciences chemistry lcsh:QD1-999 Biodiesel production Candida antarctica residual oil from babassu |
| Zdroj: | Catalysts Volume 10 Issue 4 Catalysts, Vol 10, Iss 414, p 414 (2020) |
| ISSN: | 2073-4344 |
| DOI: | 10.3390/catal10040414 |
| Popis: | Residual oil from babassu (Orbignya sp.), a low-cost raw material, was used in the enzymatic esterification for biodiesel production, using lipase B from Candida antarctica (Novozym® 435) and ethanol. For the first time in the literature, residual babassu oil and Novozym® 435 are being investigated to obtain biodiesel. In this communication, response surface methodology (RSM) and a central composite design (CCD) were used to optimize the esterification and study the effects of four factors (molar ratio (1:1&ndash 1:16, free fatty acids (FFAs) /alcohol), temperature (30&ndash 50 ° C), biocatalyst content (0.05&ndash 0.15 g) and reaction time (2&ndash 6 h)) in the conversion into fatty acid ethyl esters. Under optimized conditions (1:18 molar ratio (FFAs/alcohol), 0.14 g of Novozym® 435, 48 ° C and 4 h), the conversion into ethyl esters was 96.8%. It was found that after 10 consecutive cycles of esterification under optimal conditions, Novozym® 435 showed a maximum loss of activity of 5.8%, suggesting a very small change in the support/enzyme ratio proved by Fourier Transform Infrared (FTIR) spectroscopy and insignificant changes in the surface of Novozym® 435 proved by scanning electron microscopy (SEM) after the 10 consecutive cycles of esterification. |
| Databáze: | OpenAIRE |
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