Publication: Characterization of key parameters for biotechnological lignocellulose conversion assessed by FT-NIR spectroscopy. Part I: Qualitative analysis of pretreated straw
Issued Date
2010-11-01
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ISSN
19302126
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2-s2.0-77956065451
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Mahidol University
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SCOPUS
Bibliographic Citation
BioResources. Vol.5, No.4 (2010), 2063-2080
Suggested Citation
Chularat Krongtaew, Kurt Messner, Thomas Ters, Karin Fackler Characterization of key parameters for biotechnological lignocellulose conversion assessed by FT-NIR spectroscopy. Part I: Qualitative analysis of pretreated straw. BioResources. Vol.5, No.4 (2010), 2063-2080. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/28882
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Title
Characterization of key parameters for biotechnological lignocellulose conversion assessed by FT-NIR spectroscopy. Part I: Qualitative analysis of pretreated straw
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Abstract
Wheat straw (Triticum aestivum L.) and oat straw (Avena sativa L.) were subjected to acid and alkaline pre-treatments partly in combination with hydrogen peroxide. The aim was to remove lignin and increase the accessibility of the polysaccharides to enzymatic digestion. Accessibility was evaluated by digestion with a cell wall degrading enzyme complex to yield reducing sugars that may serve as precursor substrates for biofuels or building block chemicals. Changes in lignin, hemicelluloses, as well as amorphous, semi-crystalline, and crystalline regions of cellulose moieties of pretreated straw were efficiently characterized by Fourier transform near-infrared (FT-NIR) reflectance spectroscopy. These alterations of the chemical structure of straw after different pre-treatment methods were powerfully differentiated by principal component analysis (PCA). Characteristics of the different samples owing to the different pretreatment methods could be clustered from the PCA loadings spectra.