2,5-Dihydroxymethylfuran and furfuryl alcohol serve as versatile building-blocks in pharmaceuticals, polymers, and value-added intermediates. To develop an efficient and sustainable method for their production from biomass, a combined approach using deep eutectic solvent Citric acid:Betaine (CTA:BT) for bagasse catalysis and recombinant E. coli SCFD23 for bioreduction of bagasse-derived 5-hydroxymethylfurfural and furfural was devised. Bagasse was effectively transformed into 5-hydroxymethylfurfural (48 mM) and furfural (14 mM) in CTA:BT (8 wt%)-water at 170 °C for 30 min. Bioreduction of 5-hydroxymethylfurfural and furfural by SCFD23 cell co-expressing formate dehydrogenase and NAD(P)H-dependent aldehyde reductase (SsCR) yielded 2,5-dihydroxymethylfuran (90.0 % yield) and furfuryl alcohol (99.0 % yield) in 6 h, using biomass-derived formic acid, xylose and glucose as co-substrates. Molecular docking confirmed the stable binding and reductase activity of SsCR with the biomass-derived 5-hydroxymethylfurfural and furfural. An efficient and eco-friendly chemobiological approach was applied for co-production of 2,5-dihydroxymethylfuran and furfuryl alcohol from biomass in one-pot two-step reaction.
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http://dx.doi.org/10.1016/j.biortech.2023.129819 | DOI Listing |
Foods
January 2025
Instituto Nacional de Ciência e Tecnologia do Café (INCT), Lavras CEP 37203-202, MG, Brazil.
One strategy for adding unique characteristics and flavors to improve coffee quality is the selection of starter microorganisms. Here, we aimed to evaluate the effect of LNFCA11 and B10 as starter cultures on the quality of four different wet-fermented coffee varieties. Microbiological, molecular, and chemical analyses were carried out to identify yeast, bacteria, volatile compounds, carbohydrates and bioactive compounds in coffee.
View Article and Find Full Text PDFEnviron Pollut
January 2025
University of Arizona, Chemical and Environmental Engineering Department.
Despite their potential risks to human health and the environment at ng/L to μg/L concentrations, there has been relatively little effort to measure trace organic compounds (TOrCs) in surface waters of Central America. The concentrations of eighteen TOrCs detected at eleven surface water sites in the Lempa River basin of El Salvador and four sources of drinking water for the cities of San Salvador, Antiguo Cuscatlán, Soyapango, and Santa Tecla are reported here. All samples were analyzed via liquid chromatography with tandem mass spectrometry (LC-MS/MS).
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Griffith University, Griffith School of Environment, Centre for Clean Environment and Energy, 4222, Brisbane, AUSTRALIA.
Converting biomass-derived molecules like 5-hydroxymethylfurfural (HMF) into value-added products alongside hydrogen production using renewable energy offers significant opportunities for sustainable chemical and energy production. Yet, HMF electrooxidation requires strong alkaline conditions and membranes for efficient conversion. These harsh conditions destabilize HMF, leading to humin formation and reduced product purity, meanwhile membranes increase costs.
View Article and Find Full Text PDFChem Commun (Camb)
December 2024
Inorganic Materials & Heterogeneous Catalysis Laboratory, Department of Chemistry, School of Physical Sciences, Central University of Kerala, Tejaswini Hills Kasaragod, 671316 Kerala, India.
A tetragonal zirconia-faujasitic SAPO-37 zeolite composite (SAP-37ZR) was synergistically stabilised at 550 °C using a temperature programmed reduction method. The presence of the zeolite-ZrO composite phase was confirmed through powder XRD reflection, SEM and TEM-ED pattern analyses. The developed SAP-37ZR composite, exhibiting moderate acidity, was found to be highly active for the production of ethyl levulinate (EL) from furfuryl alcohol with a 99% yield.
View Article and Find Full Text PDFChem Commun (Camb)
December 2024
Jiangxi Province Key Laboratory of Functional Crystalline Materials Chemistry, College of Chemistry and Chemical Engineering, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiang Xi, China.
PdCu/NC and PdCo/NC with different metal mass ratios of Pd to Cu (or Co) are synthesized. They (Pd : Cu (or Co) = 3 : 7) show excellent catalytic activity and high selectivity to furfuryl alcohol (FA) (or tetrahydrofurfuryl alcohol (THFA)) under quite mild conditions due to synergistic effect of Pd-Cu (Co)-NC.
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