The degradation compounds formed during pretreatment when lignocellulosic biomass is processed to ethanol or other biorefinery products include furans, phenolics, organic acids, as well as mono- and oligomeric pentoses and hexoses. Depending on the reaction conditions glucose can be converted to 5-(hydroxymethyl)-2-furaldehyde (HMF) and/or levulinic acid, formic acid and different phenolics at ...

The present study was conducted to evaluate the physico-chemical properties of honey which were collected in Erbil city and surrounding area. total number samples gathered 12. moisture content, pH, ash, electrical conductivity (E.C), hydroxymethyl furfural (HMF), colour, minerals sugar contents. HPLC method used determine content profile (fructose, glucose sucrose) while assessed by ICP/mass sp...

BACKGROUND Compounds such as furfural and 5-hydroxymethylfurfural (5-HMF) are generated through the dehydration of xylose and glucose, respectively, during dilute-acid pretreatment of lignocellulosic biomass and are also potent microbial growth and fermentation inhibitors. The enzymatic reduction of these furan aldehydes to their corresponding, and less toxic, alcohols is an engineering approac...

Building blocks with amine functionality are crucial in the chemical industry. Biocatalytic syntheses and chemicals derived from renewable resources increasingly desired to achieve sustainable production of these amines. As a result, materials such as furfurals, especially furfurylamines like 5-(hydroxymethyl)furfurylamine (HMFA) 2,5-di(aminomethyl)furan (DAF), gaining increasing attention. In ...

BACKGROUND Pretreatment of biomass for lignocellulosic ethanol production generates compounds that can inhibit microbial metabolism. The furan aldehydes hydroxymethylfurfural (HMF) and furfural have received increasing attention recently. In the present study, the effects of HMF and furfural on redox metabolism, energy metabolism and gene expression were investigated in anaerobic chemostats whe...

The paper using sugarcane pith as a raw material, the feasibility of aluminum hydroxide Lewis acid combined with microwave conditions to be used resource was investigated.Under combination stellate and microwave, 5-hydroxymethyl furfural (5-HMF) in 0.9% liquid phase product can detected, its low yield is worthy further improvement. Economic analysis shows that added value 5-HMF produced by high...

The effects of food components on blood fluidity were studied by in vitro assay using a dedicated microchannel instrument for model capillaries. We found that the fruit-juice concentrate of the Japanese apricot (Prunus mume Sieb. et Zucc), a traditional Japanese food, markedly improved the fluidity of human blood. Using HPLC, we isolated the active compounds and characterized them using UV, MS,...

This work has established the optimum reaction conditions in a biphasic system using microcrystalline cellulose as the raw material, an ionic liquid as the solvent, metal chloride as a catalyst, and an organic solvent as the extraction reagent. The optimum reaction conditions were microcrystalline cellulose:ionic liquid 1:10 (mass ratio), chromium(III) chloride (CrCl3) 6.8 mol% (based on the gl...

Abstract As a result of the global demand for sustainable products, suitable alternative to resorcinol-formaldehyde aerogels, which are frequently used as precursors carbon is searched for. In this study, replacement petroleum-derived formaldehyde with natural, biobased crosslinker, namely 5-(hydroxymethyl)furfural (5-HMF) shown, and synthesis renewable, monolithic tannin aerogels demonstrated....