Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 47 for “"HMF"”.
-
IN-VITRO METABOLISM AND PROTEIN BINDING OF 5-HMF, A POTENTIAL ANTISICKLING AGENT
<p>Purpose. 5-HMF is a potential antisickling agent forming a Schiff-adduct with hemoglobin (Hb). In-vitro studies were designed to identify the metabolic pathways of 5-HMF in human hepatic cytosol, to assess inter-species differences in its hepatic metabolism, and to predict in-vivo PK properties. …
-
Experimental and DFT study on selective oxidation of 5-Hydroxymethyl furfural over cadmium sulfide catalyst
… fuels. Oxidation of 5-hydroximethyl furfural (HMF) is considered one of the most important biomass conversions, which resulted into value added 2,5-diformylfuran (DFF), 2,5-furandicarboxylic acid (FDCA), 5-hydroxymethyl-2-furancarboxylic acid (HMFCA), and 5-formyl-2-furancarboxylic acid (FFCA). …
-
Effect of maleic acid on the selectivity of glucose and fructose dehydration and degradation
<p>5-Hydroxymethyfurfural (HMF), a platform chemical can upgrade to a variety of fuels and polymers, can be manufactured from lignocellulose. This study focuses on the Lewis and Brønsted acid effect on hexose dehydration for HMF production. We report the positive effect of maleic acid, a …
-
Az elmúlt 4 évtizedben gyűjtött, hazai, termelői mézek hidroxi-metil-furfurol-tartalmának összehasonlító vizsgálata
… hazai, termelői mézek 5-hidroxi-metil-furfurol-(HMF)tartalmát. A HMF aktiválódik a mézben hosszú tárolási idő hatására, tehát fontos minősítő paraméter. A HMF-nek maximálisan megengedhető mennyisége 40 mg/kg, az ezt meghaladó mézeket nem javasolják fogyasztásra.
-
Microwave-Assisted Conversion of Sucrose into 5-Hydroxymethylfurfural over Acidic Nanoporous Materials
… precursors such as 5-hydroxymethylfurfural (HMF). However, due to the poor solubility of cellulose and its robust crystalline structure, current methods available to degrade cellulose into these biofuel precursors are costly, result in low yields along with a large amount of waste. Generally, …
-
Electrochemical oxidation and reduction of 5-hydroxymethylfurfural in alkaline water electrolyzers
… molecules such as 5-Hydroxymethylfurfural (HMF) can drastically reduce the overall cell potential. Thus, the energy consumption of electrolyzers, while providing valuable products, expands the potential of electrolyzers for the future. For this reason, in addition to scale-up problems in …
-
An Integrated Process for Catalytical Conversion of Simple Sugars into Platform Chemicals, HMF and FDCA: Catalysis, Continuous Flow Reactor Design, Valorization of Waste By-Product
… chemical production. 5-Hydroxymethylfurfural (HMF) and 2,5-furandicarboxylic acid (FDCA) are particularly valuable due to their potential as renewable substitutes for petroleum-derived chemicals. Efficient catalytic processes for converting glucose and fructose into these high-value compounds …
-
Catalytic biomass conversion and upgrading into platform chemicals and liquid fuels
… Towards this goal, 5-hydroxymethylfurfural (HMF), the dehydration product from C6 (poly)sugars, has been intensively investigated as it has been identified as a versatile C6 intermediate or platform for value-added chemicals and biofuels. This work has developed several highly efficient and …
-
Humane Alkoholdehydrogenasen und Aldehyddehydrogenasen : Bedeutung für den Metabolismus von Methylpyrenderivaten und von 5-(Hydroxymethyl)-2-furfural
… Ähnliches gilt für 5-(Hydroxymethyl)-2-furfural (HMF), einem Pyrolyseprodukt reduzierender Zucker, dem gegenüber Menschen in recht hohen Mengen exponiert sind. Auch bei HMF steht der ADH- und ALDH-vermittelte oxidative Metabolismus in Konkurrenz zu einer Aktivierung durch Sulfokonjugation. Um die …
-
IN-VITRO PK/PD PROFILING AND MODELING OF THE ANTI-SICKLING AGENTS, 5-HYDROXYMETHYL FURFURAL (5-HMF) AND NOVEL SYNTHETIC ALLOSTERIC EFFECTORS OF HEMOGLOBIN (AEH) IN HUMAN WHOLE BLOOD
<p>Introduction. 5-HMF and novel INN-compounds are left-shifting AEH, shown to have anti-sickling action by forming transiently covalent Schiff-base adducts with hemoglobin (Hb), thereby increasing the Hb O2-affinity. They are hypothesized to be substrates for aldehyde dehydrogenase (ALDH) in the …
-
Testing the appetite of potential players in the housing microfinance field to develop niche loans for backyard shack formalization
… negative consequences. Housing Microfinance (HMF) is increasingly viewed as an important tool that can facilitate access to affordable, appropriate shelter for lower-income households (Daphnis and Ferguson, 2004); however the industry's potential remains untapped (Kihato, 2013). Whilst there …
-
Zuckerphosphate als Vorläufer von 4-Hydroxy-3(2H)-furanonen - Biochemische Transformation durch die Hefe Zygosaccharomyces rouxii und chemische Bildung unter physiologischen Bedingungen
… (HDMF) und 4-Hydroxy-5-methyl-3(2H)-furanon (HMF) – zwei wichtigen Aromakomponenten zahl-reicher Früchte und verarbeiteter Lebensmittel – vorgestellt. Die Studien demonstrieren erstmals die Bildung dieser Verbindungen aus Zuckerphosphaten unter physiologischen Reaktionsbedingungen. Ein …
-
Kinetics of Conversion of Dihydroxyacetone to Methylglyoxal in Honey
… of MGO. The level of 5-hydroxymethylfurfural (HMF, a potentially toxic compound) must stay below 40 mg/kg if the honey is to be exported. Formation of HMF is predominately dependent on time and temperature. Therefore there is a trade off between storing honey to maximise the MGO concentration …
-
Transformation of biomass carbohydrates by transition metal catalysts
… into 5-(Hydroxymethyl)-2-furfuraldehyde (HMF) and levulinic acid. Iron (III) chloride hexahydrate has shown moderate activity to transform glucose into HMF and has also shown high yields and selectivity for the production of levulinic acid. Typically synthesized from acidic solutions made …
-
Lactose Polymerization to Polylactose: Furthering Our Understanding for Commercialization
… earth reduced the hydroxymethylfurfural (HMF) content to a level that was lower than the maximum level determined by the Joint FAO/WHO Expert Committee on Food Additives HMF limit in polydextrose, while increasing the fiber content and decreasing the citric acid content.
-
alpha- Dicarbonyle in Lebensmitteln und glucosehaltigen Lösungen der Peritonealdialyse
… auf Ihren Gehalt an 3-DG, GO und MGO neben HMF analysiert und die Bildung wärend einer Lagerung beobachtet. Zum anderen wird die Entstehung von alpha-Dicarbonylen und anderen cytotoxischen Glucoseabbauprodukten bei der Behandlung von Lösungen der Peritonealdialyse mit hohen Druck beobachtet.
-
The Role of Fatty Acids on Toll-like Receptor 4 Regulation of Substrate Metabolism with Obesity
… saturated fat (HSF), high monounsaturated fat (HMF), and control diets for 10 weeks. Following the dietary intervention, animals were challenged with I.P. injections of either saline or LPS (~25μg/mouse), sacrificed 4 hours post-injection, and red and white gastrocnemius muscle were harvested …
-
Dietary factors and early life development of the gut microbiota of preterm infants during hospitalization in the neonatal intensive care unit
… milk is fortified with either a human milk- (HMF) or bovine milk-based fortifier (BMF). Furthermore, very few studies have investigated the effect of milk fortifiers on the gut microbiota of PT infants. This is significant given that human milk has to be fortified when fed to PT infants. In …
-
Auswirkungen von hohem hydrostatischem Druck auf Schimmelpilze und die Synthese des Mycotoxins Patulin
… vollständig von 5-Hydroxymethylfuraldehyd (5-HMF), einem in Apfelsaft vorkommenden Zersetzungsprodukt von Kohlenhydraten, trennen. Die Wiederfindungsrate beträgt bei Patulin > 96 , bei 5-HMF ~ 80 Die Nachweisgrenze beider Substanzen ist 2 µg/l. Die Syntheserate von Patulin ist abhängig von dem …
-
Insights into the role of hepatic stromal cells and the immune checkpoint protein PD-L1 in liver metastases of pancreatic cancer
… liver contexts, hepatic myofibroblasts (HMF) prevail under inflammation. Despite success in other cancers, PD-1/PD-L1 therapies show limited efficacy in PDAC, necessitating a better understanding of immune evasion. IHC analysis of human liver metastases revealed profound remodeling during …
Page 1 of 3