A quick fed-batch saccharification strategy of wheat straw at high solid loadings improving lignocellulosic ethanol productivity

Gonzalez-Rios, Jorge A.; Valle-Pérez, Alexander U.; Amaya-Delgado, Lorena; Sánchez, Arturo

doi:10.1007/s13399-021-01580-0

Cited by 8 publications

(2 citation statements)

References 39 publications

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“…The assessed yields and productivities (Table 7) positively compared with the conversions reported for several types of biomass [67]. Indeed, the high sugar content of these residual feedstocks made it possible to obtain high-concentrated sugar solutions by simple batch extraction or enzymatic hydrolysis, with titres (130-150 g/L) close to the ones achieved by applying a fed-batch strategy at high solids loading [68]. Regarding the production of ethanol from PPS, the conversion was more effective than a previously reported study using recycled paper sludge under high solid loadings [69].…”

Section: Validation Of the Admissibility Gridmentioning

confidence: 77%

Admissibility Grid to Support the Decision for the Preferential Routing of Portuguese Endogenous Waste Biomass for the Production of Biogas, Advanced Biofuels, Electricity and Heat

Crujeira,

Trancoso,

Eusébio

et al. 2023

Biomass

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A methodology was developed to assess the allocation of different types of endogenous waste biomass to eight technologies for producing electricity, heat, biogas and advanced biofuels. It was based on the identification of key physicochemical parameters for each conversion process and the definition of limit values for each parameter, applied to two different matrices of waste biomass. This enabled the creation of one Admissibility Grid with target values per type of waste biomass and conversion technology, applicable to a decision process in the routing to energy production. The construction of the grid was based on the evaluation of 24 types of waste biomass, corresponding to 48 sets of samples tested, for which a detailed physicochemical characterization and an admissibility assessment were made. The samples were collected from Municipal Solid Waste treatment facilities, sewage sludges, agro-industrial companies, poultry farms, and pulp and paper industries. The conversion technologies and energy products considered were (trans)esterification to fatty acid methyl esters, anaerobic digestion to methane, fermentation to bioethanol, dark fermentation to biohydrogen, combustion to electricity and heat, gasification to syngas, and pyrolysis and hydrothermal liquefaction to bio-oils. The validation of the Admissibility Grid was based on the determination of conversion rates and product yields over 23 case studies that were selected according to the best combinations of waste biomass type versus technological solution and energy product.

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Section: Validation Of the Admissibility Gridmentioning

confidence: 77%

Admissibility Grid to Support the Decision for the Preferential Routing of Portuguese Endogenous Waste Biomass for the Production of Biogas, Advanced Biofuels, Electricity and Heat

Crujeira,

Trancoso,

Eusébio

et al. 2023

Biomass

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“…The discrepancies between the different polymer releases described in this contribution and those reported previously might be due to the fast heating-up and cooling-down periods of the experiments that do not contribute to polymer release. Although the success of hydrothermal pretreatment does not exclusively involve the release of xylan, XOOs has a potential market niche, and a good correlation with enzymatic saccharification has also been observed [ 30 , 31 ]. Furthermore, to have HP operating at rigorous isothermal conditions is fundamental to reach hydrogen and ethanol co-production via dark fermentation [ 32 ] and other eco-friendly fuel precursors [ 33 ].…”

Section: Resultsmentioning

confidence: 99%

Polysaccharides Release in a Laboratory-Scale Batch Hydrothermal Pretreatment of Wheat Straw under Rigorous Isothermal Operation

et al. 2021

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Hydrothermal pretreatment (HP) is an eco-friendly process for deconstructing lignocellulosic biomass (LCB) that plays a key role in ensuring the profitability of producing biofuels or bioproducts in a biorefinery. At the laboratory scale, HP is usually carried out under non-isothermal regimes with poor temperature control. In contrast, HP is usually carried out under isothermal conditions at the commercial scale. Consequently, significant discrepancies in the values of polysaccharide releases are found in the literature. Therefore, laboratory-scale HP data are not trustworthy if scale-up or retrofitting of HP at larger scales is required. This contribution presents the results of laboratory-scale batch HP for wheat straw in terms of xylan and glucan release that were obtained with rigorous temperature control under isothermal conditions during the reaction stage. The heating and cooling stages were carried out with fast rates (43 and −40 °C/min, respectively), minimizing non-isothermal reaction periods. Therefore, the polysaccharide release results can be associated exclusively with the isothermic reaction stage and can be considered as a reliable source of information for HP at commercial scales. The highest amount of xylan release was 4.8 g/L or 43% obtained at 180 °C and 20 min, while the glucan release exhibited a maximum of 1.2 g/L or 5.5%. at 160 °C/180 °C and 30 min.

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Interaction of Fungal Strains, Biomass, and pH to Produce Lignocellulosic Enzymes in Solid-State Fermentation for Sustainable Biotransformation of Sugarcane and Agave Bagasse

Valle-Pérez,

Gómez-Angulo,

Flores-Cosío

et al. 2023

Bioenerg. Res.

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A quick fed-batch saccharification strategy of wheat straw at high solid loadings improving lignocellulosic ethanol productivity

Cited by 8 publications

References 39 publications

Admissibility Grid to Support the Decision for the Preferential Routing of Portuguese Endogenous Waste Biomass for the Production of Biogas, Advanced Biofuels, Electricity and Heat

Admissibility Grid to Support the Decision for the Preferential Routing of Portuguese Endogenous Waste Biomass for the Production of Biogas, Advanced Biofuels, Electricity and Heat

Polysaccharides Release in a Laboratory-Scale Batch Hydrothermal Pretreatment of Wheat Straw under Rigorous Isothermal Operation

Interaction of Fungal Strains, Biomass, and pH to Produce Lignocellulosic Enzymes in Solid-State Fermentation for Sustainable Biotransformation of Sugarcane and Agave Bagasse

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