Results 91 to 100 of about 29,826 (258)

Life cycle assessment of agro-industrial residues valorization processes to obtain phenolic-rich extracts

Frontiers in Sustainable Food Systems
IntroductionThe valorization of agrifood residues into phenolic-rich extracts represents a promising approach to reduce residues and recover resources within a circular economy framework.MethodsIn this study, a comparative Life Cycle Assessment (LCA) of ...
Serena Carpentieri, Antoine Ghanem, Khaoula Khwaldia, Ana Sanches Silva, Ana Sanches Silva, Ana Sanches Silva, Giovanna Ferrari, Giovanna Ferrari   +7 more
doaj   +1 more source

Separation and Valorization of Chlorine From Tail Gas Streams

Angewandte Chemie International Edition, EarlyView.
A commercially available ion exchange resin was found to adsorb chlorine gas selectively in the presence of other gases reversibly forming the corresponding trichloride species [IEx][Cl3]. This discovery was telescoped to an efficient process for the recycling and valorization of chlorine from industrially abundant tail gas streams to base chemicals ...
Gesa H. Dreyhsig, Merlin Kleoff, Patrick Voßnacker, Elisabeth Dorn, Jacob H. Richter, Sebastian Riedel   +5 more
wiley   +1 more source

Valores

Revista Facultad de Ciencias Económicas, 1996
A través de la evolución del hombre se ha manifestado en forma racional un fundamento a razón de ser, de hacer, de realizar una acción o actividad, de expresar un comportamiento, tanto en términos individuales como comunitariamente. Esta característica propia del ser humano, adquirida culturalmente, reforzada o modificada por la convivencia en sociedad,
openaire   +2 more sources

Catalytic Sulfur‐Atom Transfer Enabled by a Bis(disulfide) Titanium Complex

Angewandte Chemie International Edition, EarlyView.
Multi‐electron transformations with titanium are underexplored due to limited access to low‐valent precursors. The four‐electron activation of elemental sulfur by a Ti(IV) complex yields a rare titanium bis(disulfide) complex, enabling the efficient catalytic synthesis of isothiocyanates from isonitriles under mild conditions.
Sebastian Samir Cremer, Peter Coburger, Corinna Czernetzki, Gabriele Hierlmeier   +3 more
wiley   +1 more source

Valores olímpicos como valores humanos

, 2019
On the basis of Prof. José Mª Cagigal thoughts, Pierre de Coubertin ideology and the Olympic Movement Philosophy we develop the contents of “Olympic Values as Human Values”. The Olympic Charter states in its principle Number 2 that “Olympism is a way of life that exalts and combine in a coherent whole the qualities of body, willingness and spirit ...
openaire   +1 more source

Acetylene Semi‐Hydrogenation by Photocatalysis

Angewandte Chemie International Edition, EarlyView.
Photocatalytic acetylene semi‐hydrogenation is an emerging light‐driven route to polymer‐grade ethylene, offering a mild alternative to energy‐intensive thermocatalysis. By replacing H2 co‐feed with water or other proton sources, these systems can achieve high selectivity under ambient conditions.
Anna Fortunato, Brando Adranno, Sharon Silloni, Marianna Barbieri, Claudia Masia, Francesca Arcudi, Luka Đorđević   +6 more
wiley   +1 more source

Sustainable Palm Oil Extraction and Trends in the Use of Green Technologies: State‐of‐the‐Art and Future Directions

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Palm oil, which is extracted from the mesocarp of the fruit of the Elaeis guineensis Jacq. palm tree, is the most widely produced vegetable oil in the world. The extraction of this substance typically utilizes the conventional pressing method, a technique that is advantageous due to its low operating cost and simplified process.
Constantino Lucas Queta, Alessandra Lopes de Oliveira, Aline Silva Mello Cesar   +2 more
wiley   +1 more source

Optimization of Saponification Process for Quantification of Individual and Total Tocopherols and Phytosterols in Canola Oil Refining By‐Products

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT In this study, saponification variables were optimized using a face‐centred central composite design‐response surface methodology. The variables included reaction temperature (50°C–120°C), reaction time (30–180 min), KOH concentration (0.5–3 M) and pyrogallol concentration (0–1% w/v).
Milad Kazemi, Paul Prenzler, Lachlan Schwarz, Michael Loughlin, Randy Adjonu   +4 more
wiley   +1 more source

Catalytic Pyrolysis of Waste Polystyrene Over Fe–B Composite Catalyst for Enhanced Liquid Fuel Production

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Healthcare derived polystyrene waste represents a growing and under addressed fraction of plastic waste streams due to contamination risks and limited recyclability. This study aims to investigate the valorization of waste polystyrene foam through catalytic and noncatalytic pyrolysis pathways to evaluate product yield distribution and identify
Salman Khan, Zahid Hussain, Bilal Ahmad, Naveed Ahmad, Shohreh Azizi   +4 more
wiley   +1 more source

A Framework for Ontological Policy Reconstruction: Academic Knowledge Transfer in the Netherlands as a Case Study

Journal of Social Ontology, 2016
This paper provides a framework for analyzing the ontology underlying a given public policy, i.e. the categories and concepts used by the policy.
Marc Pauly
doaj