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Continuous Cultivat...
Continuous Cultivation of Dilute-Acid Hydrolysates to Ethanol by Immobilized Saccharomyces cerevisiae
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- Taherzadeh Esfahani, Mohammad, 1965 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Niklasson, Claes, 1957 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Dept. of Chemical Reaction Eng., Chalmers University of Technology
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- Millati, Ria, 1972 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Dept. of Chemical Reaction Eng., Chalmers University of Technology
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visa fler...
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- Taherzadeh, Mohammad J, 1965- (författare)
- Dept. of Chemical Reaction Eng., Chalmers University of Technology
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visa färre...
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Chalmers tekniska högskola Dept of Chemical Reaction Eng., Chalmers University of Technology (creator_code:org_t)
- 2001
- 2001
- Engelska.
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Ingår i: Applied Biochemistry and Biotechnology. - 0273-2289 .- 1559-0291. ; 95:1, s. 45-57
- Relaterad länk:
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https://research.cha...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The continuous cultivation of immobilized Saccharomyces cerevisiae CBS 8066 on dilute-acid hydrolysates of forest residuals was investigated. The yeast cells were immobilized in 2–4% Ca-alginate beads. The 2% beads were not stable. However, the 3 and 4% beads were stable for at least 3 wk when an extra resource of calcium ions was available in the medium. The continuous cultivation of a dilute-acid hydrolysate by the immobilized cells at dilution rates of 0.3, 0.5, and 0.6 h−1 resulted in 86, 83, and 79% sugar consumption, respectively, and an ethanol yield between 0.45 and 0.48 g/g. The hydrolysate was fermentable at a dilution rate of 0.1 h−1 in a free-cell system but washed out at a dilution rate of 0.2 h−1. The continuous cultivation of a more inhibiting hydrolysate was not successful by either free- or immobilized-cell systems even at a low dilution rate of 0.07 h−1. However, when the hydrolysate was overlimed, it was fermentable by the immobilized cells at a dilution rate of 0.2 h−1.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Bioprocessteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bioprocess Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology (hsv//eng)
Nyckelord
- glucose
- Saccharomyces cerevisiae
- immobilization.
- dilute–acid hydrolysate
- ethanol
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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