RT Journal Article
SR Electronic
T1 Energy Potential of Urban Tree Pruning Waste
JF Arboriculture & Urban Forestry
FD International Society of Arboriculture
SP jauf.2025.008
DO 10.48044/jauf.2025.008
A1 Pagliuso, Débora
A1 de Souza, Camila Prado Cenciani
A1 Felix, Aline Gloria
A1 Celidonio, Rose Mary Garcia Skelton
A1 Id, Liliane
A1 Valdez, Alexandre Luiz Cavalcanti
A1 Grandis, Adriana
A1 de Freitas Back Silva, Edgard Bastos
A1 Oliveira, Pamela Cezar
A1 Cavalari, Aline A.
YR 2025
UL http://auf.isa-arbor.com/content/early/2025/02/27/jauf.2025.008.abstract
AB Background Large urban centers, such as São Paulo, have green areas interspersed with asphalt and buildings, requiring periodic maintenance to avoid issues with electrical networks. Urban tree management generates tons of pruning waste that is often deposited in landfills. Therefore, it is essential to discard these residues sustainably by composting and reusing the material to generate bioenergy and value-added products that support a circular economy.Methods This study aimed to evaluate the biomass potential of pruning tree waste through a composting system by characterizing the cell wall composition, starch, lignin, and saccharification capacity.Results The fermentable sugars in pruning tree waste are degraded during the composting process; however, the levels of starch, galactose, xylose, and arabinose are maintained during the first weeks of composting.Conclusions These sugars can be utilized for energy production and contribute to the saccharification capacity. Throughout the 32-week composting process, lignin is not degraded; however, the decrease in other sugars in the biomass increases the proportion of lignin, suggesting opportunities for the use of thermal energy and green chemistry.