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Simultaneous glucose and xylose utilization for improved ethanol production from lignocellulosic biomass through SSFF with encapsulated yeast.
Högskolan i Borås, Akademin för textil, teknik och ekonomi.ORCID-id: 0000-0002-8436-1115
Högskolan i Borås, Akademin för textil, teknik och ekonomi.
Högskolan i Borås, Akademin för textil, teknik och ekonomi.ORCID-id: 0000-0003-4887-2433
2015 (Engelska)Ingår i: Biomass and Bioenergy, ISSN 0961-9534, E-ISSN 1873-2909, Vol. 77, s. 192-199Artikel i tidskrift (Refereegranskat) Published
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Abstract [en]

Simultaneous glucose and xylose uptake was investigated for ethanol prodn. using the simultaneous saccharification, filtration and fermn. (SSFF) process with pretreated wheat straw as a xylose-rich lignocellulosic biomass. A genetically engineered strain of Saccharomyces cerevisiae (T0936) with the ability to ferment xylose was used for the fermns. SSFF was compared with a conventional method of simultaneous saccharification and fermn. (SSF) for glucose and xylose uptake, ethanol prodn., and cell viability on 10% and 12% suspended solids (SS) basis. With 10% SS, an ethanol yield of 90% of the theor. level was obtained during SSFF with 80% xylose uptake while only 53% ethanol yield was obsd. during the SSF process. Increasing the solid load to 12% resulted in an ethanol yield of 77% of the theor. value and 36% xylose uptake during SSFF while only 27% ethanol yield and no xylose uptake was obsd. during the corresponding SSF process. The SSFF process preserved the viability of the genetically engineered yeast throughout the fermn., even when reused for 2 consecutive cultivations. The results show that the SSFF process does not only enhance effective cell performance but also facilitates simultaneous glucose and xylose utilization, which is important for broad range of biomass utilization for lignocellulosic ethanol prodn. [on SciFinder(R)]

Ort, förlag, år, upplaga, sidor
Pergamon Press, 2015. Vol. 77, s. 192-199
Nyckelord [en]
Saccharomyces, ethanol, glucose, xylose, lignocellulose, SSFF
Nationell ämneskategori
Industriell bioteknik
Forskningsämne
Resursåtervinning
Identifikatorer
URN: urn:nbn:se:hb:diva-86DOI: 10.1016/j.biombioe.2015.03.021ISI: 000355361500018Scopus ID: 2-s2.0-84928118646OAI: oai:DiVA.org:hb-86DiVA, id: diva2:813254
Forskningsfinansiär
Energimyndigheten
Anmärkning

CAPLUS AN 2015:583795(Journal; Online Computer File)

Tillgänglig från: 2015-05-22 Skapad: 2015-05-22 Senast uppdaterad: 2018-12-01Bibliografiskt granskad

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Ishola, Mofoluwake M.Brandberg, TomasTaherzadeh, Mohammad J.

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Ishola, Mofoluwake M.Brandberg, TomasTaherzadeh, Mohammad J.
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