Evaluation of hydrothermal sugarcane bagasse treatment for the production of xylooligosaccharides in different pressures

Monteiro, Carla; Rodrigues, Luiz Gustavo Gonçalves; Cesca, Karina; Poletto, Patrícia

doi:10.1111/jfpe.13965

Cited by 6 publications

(2 citation statements)

References 60 publications

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“…Differential scanning calorimetry (DSC) analysis presented in Table 8 showed both samples’ endothermic peaks at approximately 90 °C, which may be associated with the onset of hemicellulose degradation indicated by the evaporation of water present in the sample [ 33 ]. Both samples suffered total pyrolysis, confirmed by exothermic peaks, with onset temperature at 254.3 °C and placed at 285.3 °C for SCS.…”

Section: Resultsmentioning

confidence: 99%

Sugarcane Straw as a Source of Arabinoxylans: Optimization and Economic Viability of a Two-Step Alkaline Extraction

Costa

Pereira

Pedrosa

et al. 2023

Foods

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Sugarcane processing produces a significant amount of byproducts in the form of straw and bagasse, which are rich in cellulose, hemicellulose, and lignin. This work aims to provide a valorization approach to sugarcane straw by optimizing a two-step alkaline extraction of arabinoxylans by a response surface methodology to evaluate a potential industrial-scale production. Sugarcane straws were delignified using an alkaline–sulfite pretreatment, followed by alkaline extraction and precipitation of arabinoxylan, a two-step process optimized using a response surface methodology. A KOH concentration of (2.93–17.1%) and temperature (18.8–61.2 °C) were chosen as independent variables, and the arabinoxylan yield (%) as a response variable. The model application shows that KOH concentration, temperature, and the interaction between both independent variables are significant in extracting arabinoxylans from straw. The best-performing condition was further characterized by FTIR, DSC, and chemical and molecular weight evaluation. The straws arabinoxylans presented high purities levels, ca. 69.93%, and an average molecular weight of 231 kDa. The overall estimated production cost of arabinoxylan from straw was 0.239 €/g arabinoxylan. This work demonstrates a two-step alkaline extraction of the arabinoxylans method, as well as their chemical characterization and economic viability analysis, that can be used as a model for industrial scale-up production.

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Section: Resultsmentioning

confidence: 99%

Sugarcane Straw as a Source of Arabinoxylans: Optimization and Economic Viability of a Two-Step Alkaline Extraction

Costa

Pereira

Pedrosa

et al. 2023

Foods

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“…The bioeconomy, looking to integrate bioenergy applications, aims to optimize the use of biomass resources and maximize the generation of bio‐based products (Manzanares, 2020). Aligned with this work, the main strategy to make the circular economy viable is biorefining, through the closing of the biomass cycles (Monteiro et al, 2022).…”

Section: Introductionmentioning

confidence: 97%

Non‐thermal plasma as an efficient pretreatment to lignocellulosic raw materials

Pereira

Cesca

Pereira

et al. 2022

J Food Process Engineering

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Non‐thermal plasma is an ecologically correct technique that is increasingly being explored. In this work, plasma was applied as a delignification technique for different lignocellulosic residues (brewery, banana peel, and mango seed peel). The influence of non‐thermal plasma on the physical and chemical characteristics of the residues was also explored by the techniques scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), x‐ray diffraction (XRD), and RAMAN spectroscopy. Delignification of approximately 48% was observed in 5 min of the process for the brewery by‐product, 35% the mango seed shell, and 24% the banana peel. Small changes in morphology (SEM), degradation temperature (DSC), compositional analysis (FTIR, XRD, and RAMAN) after pretreatment with non‐thermal plasma were observed. Thus, we bring unprecedented results using non‐thermal plasma as an alternative pretreatment for different lignocellulosic residues, indicating an attractive technique for subsequent enzymatic hydrolysis and thus obtaining added‐value products, such as bioethanol and xylooligosaccharides.

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Green Process for Producing Xylooligosaccharides by Using Sequential Auto-hydrolysis and Xylanase Hydrolysis

Zhai,

Zhang,

Yao

et al. 2023

Appl Biochem Biotechnol

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Evaluation of hydrothermal sugarcane bagasse treatment for the production of xylooligosaccharides in different pressures

Cited by 6 publications

References 60 publications

Sugarcane Straw as a Source of Arabinoxylans: Optimization and Economic Viability of a Two-Step Alkaline Extraction

Sugarcane Straw as a Source of Arabinoxylans: Optimization and Economic Viability of a Two-Step Alkaline Extraction

Non‐thermal plasma as an efficient pretreatment to lignocellulosic raw materials

Green Process for Producing Xylooligosaccharides by Using Sequential Auto-hydrolysis and Xylanase Hydrolysis

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