633 résultats

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633 résultats
page 58 sur 64
résultats 571 à 580
Canal-U
Dr Viviana Martins - Potential of vineyard calcium sprays to improve grape berry and wine quality
Description : Calcium (Ca) supplements have increasingly been used for improving fruit resistance to abiotic stress and shelf life, but little was known about the effects of Ca on grape berry quality. Following the demonstration that Ca sprays increased grape berry firmness and cell wall pectin content [1], we ...
Mots clés : raisin, calcium, vin
Date : 03-12-2020
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Dr Viviana Martins - Potential of vineyard calcium sprays to improve grape berry and wine quality
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Canal-U
Dr Pawe? Siudem - Aronia melanocarpa Fruits as a Dietary Source of bioactive compounds: 1H?NMR, HPLC-DAD, and Chemometric Studies
Description : Aronia melanocarpa (Michx.) Elliott's (chokeberry) it is well known for the presence of anthocyanins. The fruits also  contain significant amounts of other bioactive compounds, such as chlorogenic acid and its isomer neochlorogenic acid. They exhibit antioxidant, anti-inflammatory, antidiabetic, ...
Mots clés : raisin, composés bioactifs
Date : 03-12-2020
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Dr Pawe? Siudem - Aronia melanocarpa Fruits as a Dietary Source of bioactive compounds: 1H?NMR, HPLC-DAD, and Chemometric Studies
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Canal-U
Dr Magdalena Malinowska - Grape cane extracts a natural ingredients with cosmetic activities
Description : Modern and effective skin care formulations based on a natural ingredients has become the key issue in cosmetic industry. It is well known, that grapes are a rich source of many valuable compounds like E-resveratrol, which exhibits several biological activities for health and beauty. Wine production ...
Mots clés : cosmétique, resveratrol, ingrédients naturels
Date : 03-12-2020
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Dr Magdalena Malinowska - Grape cane extracts a natural ingredients with cosmetic activities
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Canal-U
Dr El?bieta Sikora - Supercritical CO2 plant extracts as raw materials in modern cosmetic formulations
Description : New products containing active substances from the plants are systematically appearing on the cosmetics market. Among others natural products, based on raw materials that meet the standards set for natural and organic cosmetics (COSMOS), are becoming more and more popular. The extracts obtained ...
Mots clés : cosmétique, extraits de plante
Date : 03-12-2020
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Dr El?bieta Sikora - Supercritical CO2 plant extracts as raw materials in modern cosmetic formulations
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Canal-U
Hermenegildo García - Getting closer to a large scale process. Photocatalysts for light-assisted CO2 hydrogenation
Description : There is an urgent need to diminish atmospheric CO2 emissions to meet with the International agreements on global warming and climate change. One of the possible strategies is the utilization of CO2 as feedstock of fuels and chemicals. Among the possible reactions, CO2 hydrogenation can give a wide ...
Mots clés : Photoelectrochemical water splitting, Green processes for H2 production, Solar driven energy conversion
Date : 15-06-2021
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Hermenegildo García - Getting closer to a large scale process. Photocatalysts for light-assisted CO2 hydrogenation
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Canal-U
Jesus Iniesta - Electrochemical and structural characterization of mixed matrix membrane coated electrodes for CO2 electroreduction
Description : The need for novel membrane coated electrodes (MCE) for the electrochemical reduction of carbon dioxide (CO2RR) may offer advantages in terms of control of reaction, catalytic activity and stability of the electrode. The study of the possibilities of mixed matrix membrane (MMM) overlayers with t ...
Mots clés : Solar driven energy conversion, Photoelectrochemical water splitting, Green processes for H2 production
Date : 15-06-2021
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Jesus Iniesta - Electrochemical and structural characterization of mixed matrix membrane coated electrodes for CO2 electroreduction
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Canal-U
Geyla Dubed Bandomo - CO2 conversion with {Mn(CO)3Br} molecular sites into Covalent-Organic Frameworks
Description : Effective large-scale CO2 conversion to fuels or value-added chemicals using renewable energies is critical to reduce our environmental impact [1]. To this end, better understanding of the CO2 mechanism is needed to develop efficient and selective catalysts that operates in water controlling H2 ...
Mots clés : Photoelectrochemical water splitting, Green processes for H2 production, Solar driven energy conversion
Date : 15-06-2021
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Geyla Dubed Bandomo - CO2 conversion with {Mn(CO)3Br} molecular sites into Covalent-Organic Frameworks
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Canal-U
Beatriz Avila - CO2 electroreduction to formate on Sn, Bi and Sb nanostructured electrodes: from fundamental studies to practical devices
Description : The electrochemical reduction of CO2 into chemical products of interest has been considered as an interesting route not only to mitigate climate change but also to store renewable energy in the form of value-added chemicals. Among other possible chemicals, formic acid (HCOOH) or formate (HCOO?) ...
Mots clés : Solar driven energy conversion, Photoelectrochemical water splitting, Green processes for H2 production
Date : 15-06-2021
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Beatriz Avila - CO2 electroreduction to formate on Sn, Bi and Sb nanostructured electrodes: from fundamental studies to practical devices
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Canal-U
Joaquim Faria - Carbon geometries as the base concept for developing efficient photocatalysts
Description : During the past several decades' new carbon allotropes have been accounted for and synthesised. Many notable breakthroughs include exciting works on synthesis, functionalisation, characterisation and applications of carbon nanotubes, graphene, and graphene-like structures, like graphitic carbon ...
Mots clés : Solar driven energy conversion, Photoelectrochemical water splitting, Green processes for H2 production
Date : 15-06-2021
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Joaquim Faria - Carbon geometries as the base concept for developing efficient photocatalysts
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Canal-U
Carlos Sanchez - Electrolyte engineering for electrochemical CO2 reduction
Description : Ionic liquids (ILs) in electrocatalysis have attracted a lot of attention from the seminal work of Rosen et al. [1] where they achieved a relevant overpotential decrease for CO2 reduction reaction (CO2RR) on a silver electrode. Moreover, ILs have been proposed as organic promoters for enhancing ...
Mots clés : Solar driven energy conversion, Photoelectrochemical water splitting, Green processes for H2 production
Date : 15-06-2021
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Carlos Sanchez - Electrolyte engineering for electrochemical CO2 reduction
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