Användning av svenska makroalger som substrat för bioetanolproduktion

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dc.contributor.authorDavidsson, Christoffer
dc.contributor.departmentChalmers tekniska högskola / Institutionen för biologi och biotekniksv
dc.contributor.departmentChalmers University of Technology / Department of Biology and Biological Engineeringen
dc.date.accessioned2019-07-03T13:46:52Z
dc.date.available2019-07-03T13:46:52Z
dc.date.issued2015
dc.description.abstractThis project investigates Saccharina latissima seaweeds, harvested in Sweden, as substrate for bioethanol fermentation. Saccharina latissima is also called sugar kelp and contains large amounts of the polysaccharide laminarin which was the target of interest in this project. The seaweed was milled before mixed with strong base followed by acid to extract the laminarin into a solution. After extraction, three methods for hydrolysing the laminarin into glucose were evaluated: sulphuric acid and autoclaving, commercial laminarinase enzyme, and enzymes from the naturally occuring bacterium Pseudoalteromonas sp. After hydrolysis fermentation was performed in small batches with a commercial strain of brewers' yeast. The results show that both sulphuric acid and enzymes from Pseudoalteromonas sp. did release glucose, which was successfully fermented into ethanol.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/221787
dc.language.isoeng
dc.setspec.uppsokLifeEarthScience
dc.subjectEnergi
dc.subjectLivsvetenskaper
dc.subjectKemiteknik
dc.subjectIndustriell bioteknik
dc.subjectBioprocessteknik
dc.subjectBiokemikalier
dc.subjectEnergy
dc.subjectLife Science
dc.subjectChemical Engineering
dc.subjectIndustrial Biotechnology
dc.subjectBioprocess Technology
dc.subjectBiochemicals
dc.titleAnvändning av svenska makroalger som substrat för bioetanolproduktion
dc.type.degreeExamensarbete på grundnivåsv
dc.type.uppsokM
local.programmeKemiteknik 180 hp (högskoleingenjör)
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