Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/1417
Título: | Continuous ethanol fermentation of lactose by a recombinant flocculating saccharomyces cerevisiae strain |
Autor(es): | Domingues, Lucília Dantas, Maria M. Lima, Nelson Teixeira, J. A. |
Palavras-chave: | Lactose fermentation Recombinant yeast Ethanol production Continuous culture Flocculation Airlift |
Data: | Set-1999 |
Editora: | John Wiley and Sons |
Revista: | Biotechnology and Bioengineering |
Citação: | “Biotechnology and bioengineering”. ISSN 0006-3592. 64:6 (1999) 692-697. |
Relatório da Série N.º: | 1999;07 |
Resumo(s): | Alcohol fermentation of lactose was investigated using a recombinant flocculating Saccharomyces cerevisiae, expressing the LAC4 (coding for b-galactosidase) and LAC12 (coding for lactose permease) genes of Kluyveromyces marxianus. Data on yeast fermentation and growth on a medium containing lactose as the sole carbon source are presented. In the range of studied lactose concentrations, total lactose consumption was observed with a conversion yield of ethanol close to the expected theoretical value. For the continuously operating bioreactor, an ethanol productivity of 11 g L−1 h−1 (corresponding to a feed lactose concentration of 50 g L−1 and a dilution rate of 0.55 h−1) was obtained, which is 7 times larger than the continuous conventional systems. The system stability was confirmed by keeping it in operation for 6 months. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/1417 |
DOI: | 10.1002/(SICI)1097-0290(19990920)64:6<692::AID-BIT8>3.0.CO;2-J |
ISSN: | 0006-3592 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series DCILM - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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1999-07[1].pdf | 133,01 kB | Adobe PDF | Ver/Abrir |