En este trabajo se analiza la influencia de acidez las estructuras tipo zeolita, así como el efecto del uso Cu fase activa para llevar a cabo deshidratación glicerol productos alto valor añadido acetol y acetona.

BACKGROUND Acetone, one of the principal ketone bodies elevated during treatment with the ketogenic diet, exhibits anticonvulsant properties that may contribute to the seizure protection conferred by the diet. The anticonvulsant mechanism of acetone is unknown, but it is metabolized to several bioactive substances that could play a role. METHODS Acetone and its major metabolites-acetol, 1,2-p...

A viable route for the vapor-phase conversion of glycerol into value-added chemicals is herein presented. This procedure allows to dictate selectivity towards hydroxyacetone (acetol) or methylglyoxal (pyruvaldehyde) by simply tuning experimental conditions while retaining same catalytic system. series gold- and copper-based catalysts supported on gamma-alumina, including bimetallic formulations...

The glycerol hydrogenolysis to produce 1,2-propanediol without using externally supplied hydrogen was investigated methanol present in crude provide situ via its steam reforming reaction. This paper focuses on the promoting effect of Pd reactivity a Cu/Zn/Al2O3 catalyst. Adding 2 wt% onto Cu/ZnO/Al2O3 catalyst significantly improved selectivity from 63.0% 82.4% and conversion 70.2% 99.4%. enhan...

Pyrolytic aqueous condensate (PAC) might serve as a cost-effective substrate for microbial malic acid production, it is an unused side stream of the fast pyrolysis lignocellulosic biomass that contains acetol and acetate potential carbon sources. In present study, shake flask cultures were performed to evaluate suitability its combination with substrates growth L-malate production filamentous f...

The antifungal effect of pine needle extract prepared by a distinguishable extraction method and the dry distillation method, was examined. The effect of this extract itself was insignificant. The chemical components of pine needle extract were then investigated by gas chromatographic analysis, and four chemical components, acetol, furfural, 5-methyl furfural, and terpine-4-ol, were identified....

Glycerol conversion processes such as aqueous phase reforming and hydrogenolysis generate value-added compounds highly diluted in water. Because distillation is a high energy demand separation step, adsorption could be an attractive alternative to recover these chemicals. Adsorption isotherms of 1,2-propanediol, acetol, ethylene glycol glycerol onto activated carbon were determined by batch exp...

Horse liver alcohol dehydrogenase is a nonspecific enzyme (1). It has been observed by Kaplan and Ciotti (2) that the enzyme catalyzes a transfer of hydrogen from ethanol to pyridine 3-aldehyde. We have found that the enzyme catalyzes a rapid interconversion of lactaldehyde to acetol. The evidence suggests that this isomerization proceeds through an oxidation-reduction process similar to that o...

The administration of a single dose of acetone (100 mg/kg bw) to virgin and 21-day pregnant rats resulted in the appearance of relatively high concentrations of 1,2-propanediol, acetol and methylglyoxal in plasma and liver. In the fetuses no methylglyoxal was detectable. The acetone metabolism curves tend to indicate that the capacity for acetone disposal may be enhanced in the 48 hr-fasted pre...