NEW RESEARCH ARTICLE: Phenolic characterization of aging wine lees: correlation with antioxidant activities

Aging wine lees are water-wastes produced during the wine aging inside wood barrels that can be considered as alternative sources of bioactive compounds. Phenolic characterization and antioxidant activity (AA) measurements of wines lees solid-liquid extracts have been undertaken on a dry extract (DE) basis. Solvents with different polarities (water, methanol, ethanol, two hydroalcoholic mixtures and […]

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[New paper] One-pot catalytic hydrolysis/hydrogenation of cellobiose into hexitols over Ru/Al-MCM-48

One-pot catalytic hydrolysis/hydrogenation of cellobiose into hexitols over Ru/Al-MCM-48 A. Romero,  J.A. Díaz,  A. Nieto-Márquez,  N. Essayem, E. Alonso, C. Pinel Microporous and Mesoporous Materials  Volume 271, 15 November 2018, Pages 186–195 Access to full-text (free available before July 25, 2018): https://authors.elsevier.com/c/1XArD4xQ95owkV Abstract The simultaneous catalytic hydrolysis and hydrogenation of cellobiose, as a model constituent […]

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The role of supercritical fluids in the fractionation pretreatments of a wheat bran-based biorefinery (Review)

Wheat bran is a very interesting feedstock for lignocellulosic biorefineries. The recovery of proteins, oil and phytochemicals can be integrated with the fractionation of polysaccharides and lignin, adding value to a multi-product biorefinery concept. After reviewing the work previously reported in the literature concerning the use of sc-CO2 and subcritical and supercritical water, the present […]

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NEW RESEARCH ARTICLE: Determination of Density and Viscosity of Binary Mixtures of Water and Dimethyl Sulfoxide with 1-Ethyl-3-methylimidazolium Diethylphosphate [EtMeIm]+[Et2PO4]− at Atmospheric Pressure

[:en]In the past few years, the global interest in the use of environmentally sustainable resources has increased. Therefore, the biopolymers, and more specifically cellulose, have received most of the attention in the search for new natural, biodegradable, and renewable resources. However, cellulose, due to its complex structure, is not easily processed because it is not […]

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[:en]PhD positions “Integrated Training in Dry Eye Disease Drug Development (IT-DED3)”[:es]PhD posiciones “Integrated Training in Dry Eye Disease Drug Development (IT-DED3)”[:]

[:en]The University of Valladolid, through the Ocular Surface Group from the Institute for Applied Ophthalmobiology (IOBA) and the High Pressure Process Group (HPP-UVa) from the department of Chemical Engineering and Environment technology, participate in the project entitled “Integrated Training in Dry Eye Disease Drug Development (IT-DED3). IT-DED3 is an European Marie Curie Initial Training Network […]

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NEW RESEARCH ARTICLE: Applications of supercritical technologies to CO2 reduction: Catalyst development and process intensification

[:en]Our economy relies on fossil fuels that can be converted into energy and chemicals, but this model is endangered by depletion of resources and environmental problems. To solve this dilemma, we can find inspiration in photosynthetic organisms that consider CO2 as a carbon source and not as waste. CO2 utilization processes have experienced a considerable […]

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NEW RESEARCH ARTICLE. PRETREATMENT EFFECT ON THE THERMAL DEGRADATION OF A FEEDSTOCK WITH LOW HEMICELLULOSE CONTENT: BRAZILIAN GINSENG

[:en]Pyrolysis is a well-known process for biomass upgrading, and a great deal of works are available about it. However, they focus on conventional lignocellulosic samples, and the information about any other less common samples, while still valuable, is very difficult to find. For instance, Brazilian ginseng (Pfaffia glomerata) is a feedstock without hemicellulose and a […]

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NEW REVIEW: Understanding biomass fractionation in subcritical&supercritical water

[:en]Biomass fractionation into its individual building blocks poses a major challenge to the biorefinery concept. The recalcitrance of the lignocellulose matrix and the high crystallinity of cellulose make typical feed stocks difficult to separate into their components. Hydrothermal processing fractionates biomass by its hydrolysis. However, a deep knowledge of hydrolysis principles is required since an […]

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