Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/6739
Título: Continuous cultures of Clostridium acetobutylicum: culture stability and low-grade glycerol utilisation
Autor: Andrade, José Carlos
Vasconcelos, Isabel
Palavras-chave: Clostridium acetobutylicum
Culture stability
Glycerol fermentation
Low-grade glycerol
Data: 2003
Editora: Springer Verlag
Citação: "Biotechnology letters": ISSN 0141-5492. 25: 2 (2003) 121-125
Resumo: Continuous cultures of two strains of Clostridium acetobutylicum were stable for over 70 d when grown on glucose/ glycerol mixtures. Butanol was the major fermentation end-product, accounting for 43 to 62% (w/w) of total products. Low-grade glycerol [65% (w/v) purity] could replace commercial glycerol [87% (w/v) purity], leading to a similar fermentation pattern: a butanol yield of 0.34 (mol/mol), a butanol productivity of 0.42 g l−1 h−1 and a 84% (w/w) glycerol consumptionwere attained when cultures were grown at pH 6 and D = 0.05 h−1; butanol accounted for 94% (w/w) of total solvents. These values are among the highest reported in literature for C. acetobutylicum simple chemostats.
Peer review: yes
URI: http://hdl.handle.net/10400.14/6739
Versão do Editor: The original publication is available at www.springerlink.com
Aparece nas colecções:ESB - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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