Enhanced Biogas Production During Anaerobic Digestion of Steam-Pretreated Lignocellulosic Biomass from Williams Cavendish Banana Plants

Kamdem, Irenée; Hiligsmann, Serge; Vanderghem, Caroline; Jacquet, Nicolas; Tiappi, Florian Mathias; Richel, Aurore; Jacques, Philippe; Thonart, Philippe

doi:10.1007/s12649-016-9788-6

Cited by 10 publications

(4 citation statements)

References 41 publications

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“…Banana rachis represents 6% of the wet residues and can be easily collected after the packaging of banana fruit. In the literature, banana residues are valorized mainly as biomaterials, heating materials, organic fertilizer (compost) or as animal feeding [2][3][4]. However, research initiatives for valorization into higher valueadded applications are scarce.…”

Section: Introductionmentioning

confidence: 99%

Fractionation and Structural Characterization of Hemicellulose from Steam-Exploded Banana Rachis

Deumaga

Jacquet

Vanderghem

et al. 2018

Waste Biomass Valor

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Banana production in tropical countries generates significant quantity of waste. Biorefinery of food waste biomass into cellulose, hemicellulose, lignin or pectin macromolecules have grown interest in recent scientific literature. In this paper, hemicellulose from banana rachis (Musa cavendish) was extracted by steam explosion at three severity levels (2.97, 3.57 and 3.78) and was further fractionated by graded ethanol precipitation method (15%, 60% and 80%). The recovered hemicelluloses sub-fractions (H1, H2 and H3) were characterized for their chemical composition and structural features by HPSEC, TGA/ DTG, FTIR, 1H and 2D NMR techniques. The hemicellulose extraction yield increased with the severity level and treatment duration. The average molecular weight of the extracted hemicellulose macromolecules decreased from H1-60% ethanol hemicellulose sub-fraction with 143 790 g/mol, followed by H3-60% ethanol hemicellulose sub-fraction with 110 841 g/mol and finally H2-60% ethanol hemicellulose sub-fraction with 61 404 g/mol. The H1-60% ethanol hemicellulose sub-fraction extracted during the steam explosion at the lowest severity level showed the largest molecular weight and exhibited rather a high arabinose/xylose ratio and uronic acid content. Structural analysis revealed that hemicellulose from the 60%-ethanol hemicellulose sub-fractions were mainly arabino-glucuronoxylan (AGX). However, chemical analysis also revealed significant contents of co-extracted residual lignin. Although the ethanol fractionation helped at lowering the lignin content in the 60%-ethanol hemicellulose sub-fractions (20.1% in H2-60%, 24.0% in H1-60% and 28.0 in H3-60%) relatively to 80%-ethanol hemicellulose sub-fractions, additional purification step was still required to improve the quality of the extracted hemicellulose sub-fractions (purity and coloration). Nevertheless these results proved that steam explosion was an effective technique for the extraction of high molecular mass AGX hemicellulose macromolecules from banana rachis residues.

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Section: Introductionmentioning

confidence: 99%

Fractionation and Structural Characterization of Hemicellulose from Steam-Exploded Banana Rachis

Deumaga

Jacquet

Vanderghem

et al. 2018

Waste Biomass Valor

Self Cite

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“…The need to alkalize vinasse before AD is an economic disadvantage in terms of implementing this process in sugarcane mills [33]. The presence of C6 and C5 sugars, such as glucose, xylose, arabinose, and the presence of oligosaccharides, such as arabinoxylan and glucan (Table 3), is also highlighted which can be used by the anaerobic microbial community for conversion to CH 4 , although constraints of AD from C5 sugars are commonly reported [34, 35].…”

Section: Resultsmentioning

confidence: 99%

“…Alkaline pretreatment is typically used in lignocellulosic materials such as wheat straw and sugarcane bagasse, thus decreasing its recalcitrance [3]. According to the deacetylation liquor composition ( Table 3 and Table 4), a large amount of lignin fractions was detected (phenolic compounds) and high amounts of acids that can be transformed into CH 4 (Table 4), is also highlighted which can be used by the anaerobic microbial community for conversion to CH 4, although constraints of AD from C5 sugars are commonly reported [27,28]. Table 4 describes the main acids and concentrations found in deacetylation liquor and vinasse.…”

Section: ‫ܥ‬mentioning

confidence: 99%

Use of lignocellulosic residue from second-generation ethanol production to enhance methane production through co-digestion

Volpi

Brenelli

Mockaitis

et al. 2021

Preprint

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This work evaluated the methane (CH4) production potential from residues of integrated 1st (vinasse and filter cake) and 2nd (deacetylation pretreatment liquor from straw) generation (1G2G) sugarcane biorefinery. The small-scale study provided fundamentals for basing the optimization of co-digestion by assessing the best co-substrates synergistic conditions. Biochemical Methane Potential (BMP) tests showed co-digestion enhanced CH4 yield of isolated substrates, reaching 618 NmLCH4 gVS-1, and all of the experiments were well describe by modified Gompertz model. Vinasse and deacetylation liquor as the only co-substrates increased the BMP by 36.75%, indicating that the association of these two residues provided positive effects for co-digestion by nutritionaly benefeting the methanogenic activity. The filter cake had the lowest BMP (260 NmLCH4 gVS-1) and digestibility (<40%), being the stirring required to improve the mass transfer of biochemical reactions. The alkaline characteristic of the liquor (pH-12) prevented alkalinizers from being added to the co-digestion, which could be a relevant economic advantage for the implementation of the process in an industrial scale. The co-digestion system has proven to efficiently maximize waste management in the 1G2G sugarcane biorefineries and potentially enhance their energy generation (by at least in 18%), providing experimental elements for placing the biogas production as the hub of the bioeconomy in the agroindustrial sector.

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“…The need to alkalize vinasse before AD is an economic disadvantage in terms of implementing this process in sugarcane mills [33]. The presence of C6 and C5 sugars, such as glucose, xylose, arabinose, and the presence of oligosaccharides, such as arabinoxylan and glucan (Table 3), is also highlighted which can be used by the anaerobic microbial community for conversion to CH 4, although constraints of AD from C5 sugars are commonly reported [34,35].…”

Section: Characterization Of Substratesmentioning

confidence: 99%

Use of Lignocellulosic Residue from Second-Generation Ethanol Production to Enhance Methane Production Through Co-digestion

et al. 2021

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This is a pioneer study evaluating the methane (CH 4 ) production potential from residues of integrated 1 st (vinasse and filter cake) and 2 nd (deacetylation pretreatment liquor from straw) generation (1G2G) sugarcane biorefinery, providing a fully chemical characterization of them and their relation with the anaerobic digestion (AD) process.Small-scale assays provided fundamentals for basing the co-digestion optimization by assessing the optimal co-substrates synergistic conditions. Biochemical Methane Potential (BMP) tests showed co-digestion enhanced CH 4 yield of isolated substrates, reaching up to 605 NmLCH 4 gVS -1 . The association of vinasse and deacetylation liquor as co-substrates increased the BMP by ~38% mostly by nutritionally benefiting the methanogenic activity. The kinetic analysis confirmed that the deacetylation liquor was the co-substrate responsible for improving the CH 4 production in the co-digestion systems due to the highest CH 4 conversion rate. The alkaline characteristic of the liquor (pH~12) also prevented alkalizing from being added to the co-digestion, an input that normally makes the process economically unfeasible to implement on an industrial scale due to the large quantities required for buffering the reactor. The filter cake had the lowest BMP (262 NmLCH 4 gVS -1 ) and digestibility (< 40%), further limited by the required stirring to improve the mass transfer of biochemical reactions. The present study drives towards more sustainable use of vinasse, the most voluminous waste from the sugarcane industry, and lignin-rich residues derived from pre-treatment alkaline methods, aiming at an energy-efficient utilization, by at least 16% when compared to the traditional vinasse AD. The experimental and modeling elements from this work indicated the lignin-rich liquor is the main responsible for putting the co-digestion as a disruptive technological arrangement within the 1G2G sugarcane biorefineries, .

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Enhanced Biogas Production During Anaerobic Digestion of Steam-Pretreated Lignocellulosic Biomass from Williams Cavendish Banana Plants

Cited by 10 publications

References 41 publications

Fractionation and Structural Characterization of Hemicellulose from Steam-Exploded Banana Rachis

Fractionation and Structural Characterization of Hemicellulose from Steam-Exploded Banana Rachis

Use of lignocellulosic residue from second-generation ethanol production to enhance methane production through co-digestion

Use of Lignocellulosic Residue from Second-Generation Ethanol Production to Enhance Methane Production Through Co-digestion

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