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Comparative Analysis of Milled Wood Lignins (MWLs) Isolated from Sugar Maple (SM) and Hot-Water Extracted Sugar Maple (ESM)

Author

Listed:
  • Mangesh J. Goundalkar

    (Department of Paper and Bioprocess Engineering, State University of New York College of Environmental Science and Forestry (SUNY-ESF), Syracuse, NY 13210, USA)

  • Derek B. Corbett

    (Department of Paper and Bioprocess Engineering, State University of New York College of Environmental Science and Forestry (SUNY-ESF), Syracuse, NY 13210, USA)

  • Biljana M. Bujanovic

    (Department of Paper and Bioprocess Engineering, State University of New York College of Environmental Science and Forestry (SUNY-ESF), Syracuse, NY 13210, USA)

Abstract

To further elucidate the advantageous effects of hot-water extraction (HWE) on delignification, milled wood lignin (MWL) was isolated from sugar maple (SM) and from hot-water extracted sugar maple (ESM). Ball-milled wood was analyzed for particle size distribution (PSD) before and after dioxane:water (DW) extraction. The MWL samples were analyzed by analytical and spectral methods. The results indicated that the MWL isolated from SM and ESM was mainly released from the middle lamella (ML) and the secondary wall (SW), respectively. The cleavage of dibenzodioxocin (DB) and spirodienone (SD) lignin substructures during HWE is suggested. The removal of lignin during acetone:water (AW) extraction of hot-water extracted wood indicates that including an additional operation in a hardwood HWE-based biorefinery would be beneficial for processing of wood.

Suggested Citation

  • Mangesh J. Goundalkar & Derek B. Corbett & Biljana M. Bujanovic, 2014. "Comparative Analysis of Milled Wood Lignins (MWLs) Isolated from Sugar Maple (SM) and Hot-Water Extracted Sugar Maple (ESM)," Energies, MDPI, vol. 7(3), pages 1-13, March.
    • Handle: RePEc:gam:jeners:v:7:y:2014:i:3:p:1363-1375:d:33700
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    Cited by:

    1. Chen Gong & Biljana M. Bujanovic, 2014. "Impact of Hot-Water Extraction on Acetone-Water Oxygen Delignification of Paulownia Spp. and Lignin Recovery," Energies, MDPI, vol. 7(2), pages 1-17, February.

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