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Processing of persimmon tree pruning waste through the circular economy: Lignin nanoparticles and cellulosic ethanol production

Author

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  • Mesquita, Ricardo Marchezan Farias de
  • Dal Prá, Júlia Caroline
  • Fontana, Roselei Claudete
  • Montipó, Sheila
  • Baudel, Henrique Macedo
  • Diebold, Eduardo
  • Schneider, Willian Daniel Hahn
  • Camassola, Marli

Abstract

Persimmon tree pruning waste (PTPW) was subjected to different fractionation methods and bioconversion conditions to obtain lignin nanoparticles and cellulosic ethanol. Lignins were converted into manometric structures (Ø = 150–250 nm) with a high degree of uniformity, spherical or nearly spherical conformation, homogeneous dispersion and colloidal stability, with yields ranging from 16 % to 30 % by weight. Separate hydrolysis and fermentation of the pre-treated biomass indicated that the condition of slow acid addition followed by alkaline treatment provided a biomass more susceptible to enzymatic hydrolysis, with fermentable sugar yields above 60 % and an ethanol yield of 0.37 (g g−1). Thus, the use of PTPW to obtain lignin nanoparticles and cellulosic ethanol is feasible and results in value-added products; this study is the first in the literature to promote the use of PTPW.

Suggested Citation

  • Mesquita, Ricardo Marchezan Farias de & Dal Prá, Júlia Caroline & Fontana, Roselei Claudete & Montipó, Sheila & Baudel, Henrique Macedo & Diebold, Eduardo & Schneider, Willian Daniel Hahn & Camassola,, 2025. "Processing of persimmon tree pruning waste through the circular economy: Lignin nanoparticles and cellulosic ethanol production," Renewable Energy, Elsevier, vol. 238(C).
    • Handle: RePEc:eee:renene:v:238:y:2025:i:c:s0960148124020007
    DOI: 10.1016/j.renene.2024.121932
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