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Process optimizatio...
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Wang, Ruifei,1985Chalmers tekniska högskola,Chalmers University of Technology
(författare)
Process optimization of multi-feed SSCF
- Artikel/kapitelEngelska2014
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LIBRIS-ID:oai:research.chalmers.se:70f3d5a7-1da1-416a-9062-6a584bed1fdc
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https://research.chalmers.se/publication/207125URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:kon swepub-publicationtype
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Ämneskategori:vet swepub-contenttype
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Economical production of bio-ethanol from lignocellulosic materials requires an efficient and robust process which enables high-solid fermentation of pretreated lignocellulose to achieve high ethanol fermentation performance. In this work, we design and optimize a high-solid fed-batch simultaneous saccharification and co-fermentation (SSCF) process with a feed of substrate, enzyme and yeast cell for efficient production of ethanol from pretreated wheat straw in both lab and pilot scale. The yeast is prepared by pre-cultivation and adaptation in a semi-continuous cultivation in liquid hydrolysate medium in order to achieve high fermentation capacity. The feeding profiles in both pre-cultivation and SSCF steps are optimized based on a previously developed multi-feed SSCF model [1] in order to maintain high activities of both hydrolytic enzyme and yeast cell resulting in highest biomass yield during pre-cultivation and highest ethanol production efficiency during SSCF process. We also demonstrate scale up of fed-batch SSCF process in a 10 m3 pilot-scale bioreactor. The fed-batch SSCF with an optimized feed of substrate, cell and enzymes reaches high ethanol fermentation performance suggesting it to be a promising process for efficient bioconversion of lignocellulosic materials to ethanol.[1] Wang et al. Bioresour. Technol., 2014
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Unrean, Pornkamol,1982Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)unrean
(författare)
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Olsson, Lisbeth,1963Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lisbetho
(författare)
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Franzén, Carl Johan,1966Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)franzen
(författare)
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Chalmers tekniska högskola
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:10th European Symposium on Biochemical Engineering Sciences and 6th International Forum on Industrial Bioprocesses
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