Stability study of furans, glucose and xylose under overliming conditions: Effect of sugar degradation products

The urgency for reducing the dependence on fossil-based materials is increasing the interest in the utilization of renewable feedstocks. Lignocellulosic residual biomass can be used as feedstock to produce chemicals and energy without generating food security problems. Wheat straw (WS) has a clear potential for developing sustainable processes in a circular bioeconomy context. However, the development of processes requires a strategy for utilizing the hemicellulosic, cellulosic, and lignin fractions. This work covers the utilization of the hemicellulosic fraction as the first stage of a wheat straw biorefinery. The aim was to evaluate the hydrolysis of WS by using liquid hot water (LHW) treatment, the detoxification of the produced wheat straw hydrolysate (WSH), and the cultivation of Trichoderma reesei using it as the only carbon source as proof of detoxification. LHW treatment was performed at 160 °C and 90 min and yielded a WSH rich in monomeric and oligomeric saccharides (~ 14 g/L) and containing degradation products in low concentration (furfural, HMF, and acetic acid). As part of the development of the extraction and detoxification strategy, we determined the specific inhibition thresholds for T. reesei for the mentioned degradation products. Detoxification was carried out by evaporation by modifying the % of volume evaporated and the pH of the solution. Approximately 55.9% of acetic acid and 100% of furfural were removed from the WSH. The fungal biomass obtained in the medium containing WSH was equivalent to 98% of the biomass obtained in the control medium.

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Detoxification strategy of wheat straw hemicellulosic hydrolysate for cultivating Trichoderma reesei: a contribution towards the wheat straw biorefinery

Daza-Serna

Masi

Serna-Loaiza

et al. 2023

Biomass Conv. Bioref.

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Formulation and characterization of natural deep eutectic solvents (NADES) for simultaneous phenolics and carotenes extraction from fresh oil palm leaf

Koh,

Chew,

Zhao

et al. 2024

Food and Bioproducts Processing

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Stability study of furans, glucose and xylose under overliming conditions: Effect of sugar degradation products

Cited by 2 publications

References 32 publications

Detoxification strategy of wheat straw hemicellulosic hydrolysate for cultivating Trichoderma reesei: a contribution towards the wheat straw biorefinery

Detoxification strategy of wheat straw hemicellulosic hydrolysate for cultivating Trichoderma reesei: a contribution towards the wheat straw biorefinery

Formulation and characterization of natural deep eutectic solvents (NADES) for simultaneous phenolics and carotenes extraction from fresh oil palm leaf

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