Non-thermal plasma as an innovative pretreatment technology in delignification of brewery by-product

Pereira, Gabriela N.; Cesca, Karina; Cubas, Anelise Leal Vieira; Bianchet, Ritanara Tayane; Bordignon, Sidnei Emílio; Zanella, Eduardo; Stambuk, Boris U.; Poletto, Patrícia; Oliveira, Débora de

doi:10.1016/j.ifset.2021.102827

Cited by 8 publications

(6 citation statements)

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“…The banana peel, brewery by‐product, and mango seed shell residues were first disposed to non‐thermal plasma for a fixed time of 5 min according results of G. N. Pereira, Cesca, Cubas, et al (2021); G. N. Pereira, Cesca, Vieira Cubas, and de Oliveira (2021). In this stage, the residues were standardized in a 1:10 ratio (solid:liquid), approximately 700 RPM of agitation, and the current being varied according to the need of each material (120 V mango seed shell, 180 V banana peel, and 220 V brewery by‐product).…”

Section: Resultsmentioning

confidence: 99%

“…The central aspect when using this technology is the delignification of lignocellulosic material. Thus, portions of lignin, cellulose, and hemicellulose can be obtained separately (G. N. Pereira, Cesca, Cubas, et al, 2021; G. N. Pereira, Cesca, Vieira Cubas, & de Oliveira, 2021). Figure 1 shows the cellulose, hemicellulose, xylose, arabinose, and lignin contents of the different materials in natura and after the use of plasma, where the sum of xylose and arabinose gives the total value of hemicellulose.…”

Section: Resultsmentioning

confidence: 99%

“…From Figure 4 it can be seen that during the temperature rise, the main reactions that occur around 100°C are related to the removal of moisture for all materials (G. N. Pereira, Cesca, Cubas, et al, 2021; G. N. Pereira, Cesca, Vieira Cubas, & de Oliveira, 2021). All materials being semi‐crystalline, all have similar melting points.…”

Section: Resultsmentioning

confidence: 99%

“…In this stage, a quantity of material and water (20 g material and 180 mL water) in a 1:10 mass ratio were disposed in the reactor and subjected to the action of non‐thermal plasma, with oxygen in plasma gas (nitrogen (78%) and oxygen (21%)) in time of 5 min according to conditions of G. N. Pereira, Cesca, Cubas, et al (2021); G. N. Pereira, Cesca, Vieira Cubas, and de Oliveira (2021). After the pretreatment step, the samples were centrifuged at 1493.8 g for 10 min (Eppendorf 5804 R).…”

Section: Methodsmentioning

confidence: 99%

“…These techniques have shown promising and improve the quality of value‐added products recovered from these biomasses compared to the traditional physical and chemical pretreatments. In the literature, there are several pretreatment methods in lignocellulosic biomass for subsequent enzymatic hydrolysis and obtaining value‐added products, ranging from classic techniques such as chemical methods to new processes such as the use of non‐thermal plasma (G. N. Pereira, Cesca, Cubas, et al, 2021; G. N. Pereira, Cesca, Vieira Cubas, & de Oliveira, 2021; Ravindran et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%