Characterization of pequi shell (caryocar brasiliense camb.) For its use as a biomass

Moraes, Maria Joselma de; Oliveira, Marilene Silva; Barbosa, Eloiny Guimarães; Silva, Maria Fernanda Lopes da; Araújo, Marcos Eduardo Viana de

doi:10.34117/bjdv6n5-212

Cited by 1 publication

(2 citation statements)

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“…Considering the current socio-environmental world's context, issues related to the exploitation of fossil resources have motivated the search for processes based on renewable resources and the replacement of the energy matrix within the context of a circular economy (MORAES et al, 2020;CUNHA et al, 2019;CHANDEL et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Isomerization and Fermentation (Sif) of Sugarcane Bagasse Hydrothermal Hemicellulose Hydrolysate / Isomerização E Fermentação Simultâneas (Sif) De Hidrolisado Hemicelulósico Hidrotérmico De Bagaço De Cana

Ramos

Zangirolami

Giordano

et al. 2021

BJD

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The production of bioethanol from lignocellulosic by-products, such as sugarcane bagasse, stands out as a renewable and sustainable approach to mitigate climate changes. These lignocellulosic materials are mainly composed of polymers that, after a pretreatment step, release fermentable sugars. Hydrothermal pretreatment, in turn, is a technique considered environmentally attractive because it is based on the use of steam, without the use of solvents. The mainly sugar released in this stage (the pentose xylose) is not assimilated by the yeast Saccharomyces cerevisiae. The use of the enzyme xylose isomerase to isomerize xylose to xylulose, which can be consumed by the microorganism in the SIF process (Simultaneous Isomerization and Fermentation), poses as a possible route for the utilization of hydrothermal hydrolysates. Considering that inhibitors of the microbial metabolism are also generated during the pretreatment, the present work evaluated the performance of xylose SIF in sugarcane bagasse hydrothermal hydrolysate using xylose isomerase co-immobilized with S. cerevisiae in Ca-alginate gel. The presence of inhibitors in the hydrolysate significantly influenced the process, with a decrease in xylose assimilation rate from 3.9 g/L/h to 2.6 g/L/h and in ethanol productivity from 1.2 g/L/h to 0.5 g/L/h, when compared to the synthetic medium. However, cell viability was not affected and strategies such as increasing the concentration of biocatalyst and detoxification of the hydrolysate could be applied to improve its performance.

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Section: Introductionmentioning

confidence: 99%

“…Figure1-Schematic of the Ca-alginate gel beads production containing S. cerevisiae and xylose isomerase (IXI-Ch) (Adapted fromMILESSI et al, 2015).…”

mentioning

confidence: 99%

Simultaneous Isomerization and Fermentation (Sif) of Sugarcane Bagasse Hydrothermal Hemicellulose Hydrolysate / Isomerização E Fermentação Simultâneas (Sif) De Hidrolisado Hemicelulósico Hidrotérmico De Bagaço De Cana

Ramos

Zangirolami

Giordano

et al. 2021

BJD

View full text Add to dashboard Cite

show abstract

Characterization of pequi shell (caryocar brasiliense camb.) For its use as a biomass

Abstract: Characterization of pequi shell (caryocar brasiliense camb.) For its use as a biomass Caracterização da casca de pequi (caryocar brasiliense camb.) Para sua utilização como biomassa

Cited by 1 publication

References 21 publications

Simultaneous Isomerization and Fermentation (Sif) of Sugarcane Bagasse Hydrothermal Hemicellulose Hydrolysate / Isomerização E Fermentação Simultâneas (Sif) De Hidrolisado Hemicelulósico Hidrotérmico De Bagaço De Cana

Simultaneous Isomerization and Fermentation (Sif) of Sugarcane Bagasse Hydrothermal Hemicellulose Hydrolysate / Isomerização E Fermentação Simultâneas (Sif) De Hidrolisado Hemicelulósico Hidrotérmico De Bagaço De Cana

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