Ball milling’s effect on pine milled wood lignin’s structure and molar mass

 |  Login

Show simple item record

dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Zinovyev, Grigory Sumerskii, Ivan Rosenau, Thomas Balakshin, Mikhail Potthast, Antje 2018-09-21T09:49:33Z 2018-09-21T09:49:33Z 2018-09-01
dc.identifier.citation Zinovyev , G , Sumerskii , I , Rosenau , T , Balakshin , M & Potthast , A 2018 , ' Ball milling’s effect on pine milled wood lignin’s structure and molar mass ' Molecules , vol 23 , no. 9 , 2223 . DOI: 10.3390/molecules23092223 en
dc.identifier.issn 1420-3049
dc.identifier.other PURE UUID: 90793405-c493-4ccd-8f69-35f34068b5eb
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
dc.identifier.other PURE FILEURL:
dc.description.abstract The effect of ball milling expressed as the yield of milled wood lignin (MWL) on the structure and molar mass of crude milled wood lignin (MWLc) preparation is studied to better understand the process’ fundamentals and find optimal conditions for MWL isolation (i.e., to obtain the most representative sample with minimal degradation). Softwood (loblolly pine) MWLc preparations with yields of 20–75% have been isolated and characterized based on their molar mass distribution (by Size Exclusion Chromatography (SEC)), hydroxyl groups of different types (31P NMR), methoxyl groups (HS-ID GC-MS), and sugar composition (based on methanolysis). Classical MWL purification is not used to access the whole extracted lignin. The results indicate that lignin degradation during ball milling occurs predominantly in the high molar mass fraction and is less pronounced in the low molar mass fraction. This results in a significant decrease in the Mz and Mw of the extracted MWLc with an increase in the yield of MWLc, but has only avery subtle effect on the lignin structure if the yield of MWLc is kept below about 55%. Therefore, no tedious optimization of process variables is necessary to achieve the required MWLc yield in this range for structural studies of softwood MWL. The sugar composition shows higher amounts of pectin components in MWLs of low yields and higher amounts of glucan and mannan in high-yield MWLs, confirming that lignin extraction starts from the middle lamella in the earlier stages of MWL isolation, followed by lignin extraction from the secondary wall region. en
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Molecules en
dc.relation.ispartofseries Volume 23, issue 9 en
dc.rights openAccess en
dc.subject.other Analytical Chemistry en
dc.subject.other Chemistry (miscellaneous) en
dc.subject.other Molecular Medicine en
dc.subject.other Pharmaceutical Science en
dc.subject.other Drug Discovery en
dc.subject.other Physical and Theoretical Chemistry en
dc.subject.other Organic Chemistry en
dc.subject.other 216 Materials engineering en
dc.title Ball milling’s effect on pine milled wood lignin’s structure and molar mass en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department University of Natural Resources and Life Sciences
dc.contributor.department Department of Bioproducts and Biosystems
dc.subject.keyword Ball milling
dc.subject.keyword Carbohydrate composition
dc.subject.keyword Characterization
dc.subject.keyword Functional groups
dc.subject.keyword Milled wood lignin
dc.subject.keyword Molar mass distribution
dc.subject.keyword Softwood
dc.subject.keyword Analytical Chemistry
dc.subject.keyword Chemistry (miscellaneous)
dc.subject.keyword Molecular Medicine
dc.subject.keyword Pharmaceutical Science
dc.subject.keyword Drug Discovery
dc.subject.keyword Physical and Theoretical Chemistry
dc.subject.keyword Organic Chemistry
dc.subject.keyword 216 Materials engineering
dc.identifier.urn URN:NBN:fi:aalto-201809215151
dc.identifier.doi 10.3390/molecules23092223
dc.type.version publishedVersion

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search archive

Advanced Search

article-iconSubmit a publication


My Account