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Particle classification by image analysis improves understanding of corn stover degradation mechanisms during deconstruction

Cousins, Dylan S. (author)
Department of Chemical and Biological Engineering, Montana State University, 306 Cobleigh Hall, PO Box 173920 Bozeman, MT 59717–3920, USA
Pedersen, Kristian P. (author)
Department of Chemical and Biological Engineering, Montana State University, 306 Cobleigh Hall, PO Box 173920 Bozeman, MT 59717–3920, USA
Otto, William G. (author)
Department of Chemical and Biological Engineering, Montana State University, 306 Cobleigh Hall, PO Box 173920 Bozeman, MT 59717–3920, USA
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Rony, Asif Hasan (author)
Idaho National Laboratory, Idaho Falls, ID, USA
Lacey, Jeffrey A. (author)
Idaho National Laboratory, Idaho Falls, ID, USA
Aston, John E. (author)
Idaho National Laboratory, Idaho Falls, ID, USA
Hodge, David (author)
Luleå tekniska universitet,Kemiteknik,Department of Chemical and Biological Engineering, Montana State University, 306 Cobleigh Hall, PO Box 173920, Bozeman, MT 59717-3920, USA
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 (creator_code:org_t)
Elsevier B.V. 2023
2023
English.
In: Industrial crops and products (Print). - : Elsevier B.V.. - 0926-6690 .- 1872-633X. ; 193
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Biomass feedstock heterogeneity is a principal roadblock to implementation of the biorefinery concept. Even within an identical cultivar of corn stover, different bales contain not only varying abundance moisture, ash, glucan, and other chemical compounds, but also varying abundance of tissue anatomies (e.g., leaf, husk, cob, or stalk). These different anatomical components not only differ in their response to pretreatment and enzymatic hydrolysis to glucose, but also vary in their mechanical and conveyance properties. Although this heterogeneous nature of corn stover feedstock has been identified as a challenge, a fundamental knowledge gap of how these tissues behave during biorefining processing remains. In this work, we demonstrate the use of a commercial fiber image analyzer typically used for wood fiber characterization to monitor the particle size and shapes of non-woody feedstock during milling, pretreatment, and hydrolysis. Additionally, we present novel use of Gaussian process classification to distinguish bundle, parenchyma, and fiber particles to an accuracy of 96.4%. Quantitative probability distribution plots for characteristics such as length and roundness allow elucidation of particle morphology as pretreatment and enzymatic hydrolysis progress. In both stalk pith and stalk rind, particles peel into individual cells whose walls are subsequently fragmented during enzymatic hydrolysis.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Industriell bioteknik -- Bioprocessteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Industrial Biotechnology -- Bioprocess Technology (hsv//eng)
NATURVETENSKAP  -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)

Keyword

Biomass conversion
Feedstock enhancement
Gaussian process classification
Particle image analysis
Biokemisk processteknik
Biochemical Process Engineering

Publication and Content Type

ref (subject category)
art (subject category)

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