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Valorization of sugar-to-ethanol process waste vinasse: A novel biorefinery approach using edible ascomycetes filamentous fungi
University of Borås, Faculty of Textiles, Engineering and Business. (Swedish Centre for Resource Recovery)ORCID iD: 0000-0001-5719-7252
University of Borås, Faculty of Textiles, Engineering and Business. (Swedish Centre for Resource Recovery)ORCID iD: 0000-0003-4887-2433
2016 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 221, p. 469-476Article in journal (Refereed) Published
Sustainable development
The content falls within the scope of Sustainable Development
Abstract [en]

The aim of the present work was to study the integration of edible ascomycetes filamentous fungi into the existing sugar- or molasses-to-ethanol processes, to grow on vinasse or stillage and produce ethanol and protein-rich fungal biomass. Two fungal strains, Neurospora intermedia and Aspergillus oryzae were examined in shake flasks and airlift-bioreactors, resulting in reduction of vinasse COD by 34% and viscosity by 21%. Utilization of glycerol and sugars were observed, yielding 202.4 or 222.8g dry fungal biomass of N. intermedia or A. oryzae respectively, per liter of vinasse. Integration of the current process at an existing ethanol facility producing about 100,000m(3) of ethanol per year could produce around 200,000-250,000tons of dry fungal biomass (40-45% protein) together with about 8800-12,600m(3) extra ethanol (8.8-12.6% of production-rate improvement).[on SciFinder (R)]

Place, publisher, year, edition, pages
2016. Vol. 221, p. 469-476
Keywords [en]
ascomycetes, bioethanol, filamentous fungi, integration, vinasse
National Category
Industrial Biotechnology
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-11432DOI: 10.1016/j.biortech.2016.09.074ISI: 000386241000058PubMedID: 27668880Scopus ID: 2-s2.0-84988566159OAI: oai:DiVA.org:hb-11432DiVA, id: diva2:1056192
Note

MEDLINE AN 2017438420(Journal; Article; (JOURNAL ARTICLE))

Available from: 2016-12-14 Created: 2016-12-14 Last updated: 2017-11-29Bibliographically approved

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Nair, RamkumarTaherzadeh, Mohammad J

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