Sugarcane agroindustry by-products for xylitol production: mixture of bagasse and straw as feedstocks in a biorefinery (2017)
- Authors:
- USP affiliated authors: FELIPE, MARIA DAS GRAÇAS DE ALMEIDA - EEL ; NOLASCO, DANIELLE VERDE - EEL ; PEREZ, ANDRES FELIPE HERNANDEZ - EEL
- Unidade: EEL
- Sigla do Departamento: LOT
- Subjects: BIOPROCESSOS; BIOTECNOLOGIA
- Language: Inglês
- Objetivos de Desenvolvimento Sustentável (ODS):
09. Indústria, inovação e infraestrutura
- Abstract: The present work evaluated the use of hemicellulosic hydrolysate of the mixture of bagasse and straw for xylitol production, aiming to the integration of this bioprocess with the sugar-alcohol industry in the context of a biorefinery. The hemicellulosic hydrolysate was obtained from the diluted acid hydrolysis of the sugarcane biomass (straw and bagasse 1:1), concentrated six times at vacuum, and its composition was determined (g/L): xylose (74.59), glucose (7.55), arabinose (11.8), acetic acid (2.29), 5-hydroxymethilfurfural (0.43) and furfural (0.19). Two conditions were evaluated: detoxification with pH adjustment and activated charcoal, and without detoxification. Fermentations were conducted with the yeast Candida guilliermondii FTI 20037, cultivated in Erlenmeyer flasks (125 mL) with 50 ml of medium, initial pH 5.5, inoculum concentration 1.0 g/L, incubated for 72h at 200 rpm and 30°C. According to the results, 23.49 and 25.02 g/L of xylitol were produced corresponding to a consumption of 86% and 98% of xylose for detoxified and not detoxified hydrolysates, respectively. This demonstrates that detoxification of this hydrolysate in this bioprocess may be not necessary, contributing to reduction of time and costs. Based on these results, experiments are being conducted to establish important fermentative parameters in bench reactor, mainly oxygen availability, with the aim of contributing to develop the technology of xylitol production from a mixture of bagasse and straw. Results of this research can open alternatives to incorporate new bioproducts in sugar-alcohol industry as xylitol, which is a sugar-alcohol with applications in pharmaceutical, odontology and food industry.
- Imprenta:
- Publisher place: São Francisco
- Date published: 2017
- Source:
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ABNT
PÉREZ, Andrés Felipe Hernandéz et al. Sugarcane agroindustry by-products for xylitol production: mixture of bagasse and straw as feedstocks in a biorefinery. 2017, Anais.. São Francisco: Escola de Engenharia de Lorena, Universidade de São Paulo, 2017. . Acesso em: 13 fev. 2026. -
APA
Pérez, A. F. H., Nolasco, D. V., Villamil, A. C. C., & Felipe, M. das G. de A. (2017). Sugarcane agroindustry by-products for xylitol production: mixture of bagasse and straw as feedstocks in a biorefinery. In 39th Symposium on Biotechnology for Fuels and Chemicals. São Francisco: Escola de Engenharia de Lorena, Universidade de São Paulo. -
NLM
Pérez AFH, Nolasco DV, Villamil ACC, Felipe M das G de A. Sugarcane agroindustry by-products for xylitol production: mixture of bagasse and straw as feedstocks in a biorefinery. 39th Symposium on Biotechnology for Fuels and Chemicals. 2017 ;[citado 2026 fev. 13 ] -
Vancouver
Pérez AFH, Nolasco DV, Villamil ACC, Felipe M das G de A. Sugarcane agroindustry by-products for xylitol production: mixture of bagasse and straw as feedstocks in a biorefinery. 39th Symposium on Biotechnology for Fuels and Chemicals. 2017 ;[citado 2026 fev. 13 ] - Physicochemical and thermal characteristics of sugarcane straw and its cellulignin
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- Characterization of the solid residue generated in the detoxification step of sugarcane bagasse hemicellulosic hydrolysate and behavior in agricultural soils
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