Background: Pekmez is an important fruit-based food of Turkish culinary culture. The aim of this study is to determine the levels of acrylamide (AA), 5-hydroxymethyl-2-furfural (HMF) and other selected parameters in grape, mulberry and carob Pekmez. Methods: AA and HMF were analyzed by Liquid Chromatography and High Performance Liquid Chromatography, respectively. Also, glucose, fructose, pH, ...

The kinetics of furfural inhibition of the enzymes alcohol dehydrogenase (ADH; EC 1.1.1.1), aldehyde dehydrogenase (AlDH; EC 1.2.1.5) and the pyruvate dehydrogenase (PDH) complex were studied in vitro. At a concentration of less than 2 mM furfural was found to decrease the activity of both PDH and AlDH by more than 90%, whereas the ADH activity decreased by less than 20% at the same concentrati...

Furfural and hydroxymethylfurfural (HMF) are representative inhibitors among many inhibitive compounds derived from biomass degradation and saccharification for bioethanol fermentation. Most yeasts, including industrial strains, are susceptible to these inhibitory compounds, especially when multiple inhibitors are present. Additional detoxification steps add cost and complexity to the process a...

Conversion of fructose to furan aldehydes is a rapidly developing concept considering the emergent scenario replacement fossil-derived components biomass-derived green precursors. 5-hydroxymethyl furfural (HMF) and levulinic acid (LA) are two most important bio-precursors with expanded downstream utilization in modern industries. Their production from sugars complex reaction due competitive sid...

BACKGROUND Chemical and physical pretreatment of lignocellulosic biomass improves substrate reactivity for increased microbial biofuel production, but also restricts growth via the release of furan aldehydes, such as furfural and 5-hydroxymethylfurfural (5-HMF). The physiological effects of these inhibitors on thermophilic, fermentative bacteria are important to understand; especially as cellul...

An alternative to 5-hydroxymethyl-2-furfural (HMF), which is a promising furan derivative that can be used as starting material for the preparation of non-petroleum-derived polymeric materials from sugars, 5-acetoxymethyl-2-furfural (AMF). The less-hydrophilic acetyl group AMF has advantages over hydroxy HMF in terms thermal stability and isolation. In previous studies, fructose been along with...

Biomass-derived carbon catalysts have been extensively studied for the dehydration of sugars to platform chemical 5-hydroxymethyl furfural (HMF), which can be used produce valuable chemicals and fuels. However, only limited studies conducted determine their molecular structures how these influence conversion process. Here, we prepare a chlorosulfonated catalyst derived from cotton gin trash (CG...

In the present study, we hypothesized that 5-hydroxymethyl-2-furfural could attenuate ischemic brain damage by reducing oxidative injury. Thus, mice were subjected to bilateral common carotid artery occlusion to establish a model of permanent forebrain ischemia. The mice were intraperitoneally injected with 5-hydroxymethyl-2-furfural 30 minutes before ischemia or 5 minutes after ischemia. The s...

2,5-diformylfuran (DFF) is a promising green platform chemical obtainable by selective oxidation of 5-(hydroxymethyl)furfural (HMF). In this work, high-purity DFF was synthesized from HMF and compared to formaldehyde (F) in terms suitability for polymerization aqueous solution with various phenolic model substances that may be depolymerization lignin. Resorcinol, catechol, phloroglucinol formed...

Pairing the electrocatalytic hydrogenation (ECH) reaction with different anodic reactions holds great promise for producing value-added chemicals driven by renewable energy sources. Replacing sluggish water oxidation a bio-based upgrading can reduce overall cost and allows simultaneous generation of high-value products at both electrodes. Herein, we developed membrane-electrode assembly (MEA)-b...