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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/5448

Title: One-step enzymatic production of fatty acid ethyl ester from high-acidity waste feedstocks in solvent-free media
Other Titles: Bioresource Technology journal
Authors: Cunha, Vitor Hugo Moreau da
Véras, Ilvania Costa
Silva, Frederico A. L.
Gonzales, Astria Dias Ferrão
Keywords: Enzymatic production;Lipase;Biodiesel;Solvent-free medium;One-step
Issue Date: 2011
Abstract: This work aims to demonstrate the enzymatic production of fatty acid ethyl ester biodiesel from highly acidic feedstock in a single-step reaction, without co-solvents and avoiding the inhibition of the enzyme by ethanol and glycerol. Additionally, an empirical equation is proposed to predict the kinetics of the production reaction as a function of the used feedstock and catalyst concentration. Biodiesel production from highly acidic feedstock perform via simultaneous esterification of free fatty acids and transesterification of triacylglycerols. Enzymatic catalysis is one of the most promising alternative technologies for the biodiesel production. Increasing of the enzymatic bioactivity is crucial for the success of such process in industrial scale. Currently, stepwise addition of the alcohol or the use of co-solvents have been proposed to avoid enzyme inhibition, such strategies add downstream processes to the production. These results can be applied to the development economical-viable enzymatic production of biodiesel in industrial scale.
Description: texto completo: acesso restrito. p. 9653–9658.
URI: http://www.repositorio.ufba.br/ri/handle/ri/5448
ISSN: 1873-2976
Appears in Collections:Artigos Publicados em Periódicos (ICS)

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