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Impact of ball milling on maize (Zea mays L.) stem structural components and on enzymatic hydrolysis of carbohydrates

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Sipponen, Mika Henrikki
dc.contributor.author Laakso, Simo
dc.contributor.author Baumberger, Stéphanie
dc.date.accessioned 2014-08-21T08:32:11Z
dc.date.available 2014-08-21T08:32:11Z
dc.date.issued 2014
dc.identifier.citation Sipponen, Mika Henrikki & Laakso, Simo & Baumberger, Stéphanie. 2014. Impact of ball milling on maize (Zea mays L.) stem structural components and on enzymatic hydrolysis of carbohydrates. Industrial Crops and Products. Volume 61. P. 130-136. ISSN 0926-6690 (printed). DOI: 10.1016/j.indcrop.2014.06.052. en
dc.identifier.issn 0926-6690 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/13825
dc.description.abstract The impact of ball milling on structural components of maize (Zea mays L.) stem was investigated in relation to enzymatic hydrolysis of carbohydrates. Ball milling of extractive-free maize stem material was carried out with different milling times up to 12 h. Carbohydrate conversion from ball-milled maize stem material with cellulolytic preparation Onozuka R-10 increased to 79% with increasing ball milling time up to 4 h, but did not thereafter increase further. Ball milling caused drastic depolymerization of hemicelluloses as revealed by increasing amounts of monosaccharides released in absence of enzymes. Infrared spectroscopy showed that cellulose crystallinity decreased within the first 6 h milling thereafter reaching a plateau. Thioacidolysis of solid residue fractions obtained after treatment of ball-milled samples with Onozuka R-10 suggested that no extensive degradation of lignin occurred during the milling. The effect of lignin structure on enzymatic hydrolysis of associated carbohydrates was further studied independently of cellulose crystallinity. Two lignin-carbohydrate fractions comprising hemicellulose and lignin with either high or low amount of aryl ether linkages were used as model materials. Lignins abundant in aryl ether linkages appeared more detrimental than condensed lignins to enzymatic hydrolysis of associated carbohydrates. en
dc.format.extent 130-136
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier BV en
dc.relation.ispartofseries Industrial Crops and Products en
dc.relation.ispartofseries Volume 61
dc.subject.other Biotechnology en
dc.title Impact of ball milling on maize (Zea mays L.) stem structural components and on enzymatic hydrolysis of carbohydrates en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.rights.holder Elsevier BV
dc.contributor.school Kemian tekniikan korkeakoulu fi
dc.contributor.school School of Chemical Technology en
dc.contributor.department Department of Biotechnology and Chemical Technology en
dc.contributor.department Biotekniikan ja kemian tekniikan laitos fi
dc.subject.keyword Ball milling en
dc.subject.keyword maize stem en
dc.subject.keyword stalk en
dc.subject.keyword lignocellulose en
dc.subject.keyword enzymatic en
dc.subject.keyword hydrolysis en
dc.subject.keyword lignin en
dc.subject.keyword structure en
dc.identifier.urn URN:NBN:fi:aalto-201408212476
dc.type.dcmitype text en
dc.identifier.doi 10.1016/j.indcrop.2014.06.052
dc.contributor.lab Applied Biochemistry Research Group en
dc.contributor.lab Biokemian tutkimusryhmä fi
dc.type.version Pre-print en

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