Location of water in fresh sugarcane bagasse observed by synchrotron X-ray microtomography

Autor(es)

Driemeier, Carlos E. ^[1] ; Ling, Liu Y. ^[1] ; Yancy-Caballero, Daison ^{[1, 2]} ; Mantelatto, Paulo E. ^[1] ; Dias, Carlos S. B. ^[3] ; Archilha, Nathaly L. ^[3]

Afiliação do(s) autor(es)

^[1] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Bioethanol Sci & Technol Lab CTBE, Campinas, SP - Brazil

^[2] Univ Sao Paulo, Inst Math & Stat IME, Sao Paulo, SP - Brazil

^[3] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Synchrotron Light Lab LNLS, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PLoS One; v. 13, n. 12 DEC 6 2018.
• Citações Web of Science: 2

Resumo

Sugarcane bagasse is a vast lignocellulosic byproduct generated in the industry with similar to 50% humidity (1 kg dry matter associated with 1 kg water). Although the presence of water brings deleterious consequences for combustion, storage and sugar extraction, the location of water in fresh bagasse remains unknown. In this work, we use synchrotron X-ray microto-mography for non-invasive 3D imaging of fresh bagasse particles, which allows the visualization of intraparticle water. The sclerified fiber cells in the sheaths surrounding xylem vessels are often found full of water. We suggest this can be juice preserved from the native stalks as many sclerified fibers seem to keep their structural integrity despite the mechanical action during sugarcane crushing. The microtomograms of fresh bagasse also shows mineral particles adhered to biomass surfaces, with adhesion presumably favored by the presence of water. In summary, this work unveils the location of water in fresh bagasse, solving an old mystery of sugarcane technology. (AU)

• Processo FAPESP: 14/50884-5 - INCT 2014: Instituto Nacional de Ciência e Tecnologia do Bioetanol
• Beneficiário: Marcos Silveira Buckeridge
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 15/01587-0 - Armazenagem, modelagem e análise de sistemas dinâmicos para aplicações em e-Science
• Beneficiário: João Eduardo Ferreira
• Modalidade de apoio: Auxílio à Pesquisa - Programa eScience e Data Science - Temático
• Processo FAPESP: 17/01330-5 - Análise de imagens 3D para modelagem realista e simulação de processos de conversão da biomassa
• Beneficiário: Daison Manuel Yancy Caballero
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado