Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/77620
Título: | Bio-oil production for biodiesel industry by Yarrowia lipolytica from volatile fatty acids in two-stage batch culture |
Autor(es): | Pereira, Ana Sofia Silva Lopes, Marlene Miranda, Sílvia Cristiana Martins Belo, Isabel |
Palavras-chave: | Yarrowia lipolytica Microbial lipids Volatile fatty acids Two-stage batch culture Biodiesel |
Data: | 8-Abr-2022 |
Editora: | Springer Nature |
Revista: | Applied Microbiology and Biotechnology |
Citação: | Pereira, Ana S.; Lopes, Marlene; Miranda, Sílvia M.; Belo, Isabel, Bio-oil production for biodiesel industry by Yarrowia lipolytica from volatile fatty acids in two-stage batch culture. Applied Microbiology and Biotechnology, 106, 2869-2881, 2022 |
Resumo(s): | Microbial lipids-derived biodiesel is garnering much attention owing to its potential to substitute diesel fuel. In this study, lipid accumulation by Yarrowia lipolytica from volatile fatty acids (VFAs) was studied in a lab-scale stirred tank bioreactor. In batch cultures, Y. lipolytica NCYC 2904 was able to grow in 18 g\textperiodcenteredL1 of VFAs (acetate, propionate, and butyrate), and the addition of a co-substrate (glucose) led to a fivefold improvement in lipid concentration. Furthermore, the two-stage batch culture (growth phase in glucose (1st stage) followed by a lipogenic phase in VFAs (2nd stage)) was the best strategy to obtain the highest lipid content in the cells (37\%, w/w), with aeration conditions that kept dissolved oxygen concentration between 40\% and 50\\% of saturation during the lipogenic phase. The estimated fuel properties of biodiesel produced from Y. lipolytica NCYC 2904 lipids are comparable with those of the biodiesel produced from vegetable oils and are in accordance with the international standards (EN 14214 and ASTM D6751). The cultivation strategies herein devised enable a sustainable, eco-friendly, and economical production of microbial lipids, based on feedstocks such as VFAs that can be derived from the acidogenic fermentation of organic wastes. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/77620 |
DOI: | 10.1007/s00253-022-11900-7 |
ISSN: | 0175-7598 |
e-ISSN: | 1432-0614 |
Versão da editora: | http://www.springer.com/chemistry/biotechnology/journal/253 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_55457_1.pdf Acesso restrito! | 1,08 MB | Adobe PDF | Ver/Abrir |