Results 141 to 150 of about 23,178 (223)

Chemical Profiling and Biological Activity of Copaiba Oil‐Resin Samples and Development of HPLC‐DAD Method for the Analysis of β‐Caryophyllene

open access: yesBiomedical Chromatography, Volume 40, Issue 5, May 2026.
ABSTRACT The Copaifera species are traditionally used for their anti‐inflammatory, antiseptic and healing properties. The objective of this study was to compare the chromatographic profiles of seven samples of copaiba oil‐resin with respect to chromatographic and physicochemical properties and to evaluate their biological activities.
Gabriel de A. P. Graça   +13 more
wiley   +1 more source

Sustainability Assessment of Circular Strategies in the Agri‐Food Industry: The Case of Olive Mills' By‐Product Valorization

open access: yesBusiness Strategy and the Environment, Volume 35, Issue 4, Page 4641-4658, May 2026.
ABSTRACT This study integrates multidimensional sustainability indicators into a unified assessment approach to evaluate circular strategies in agri‐food industry businesses. This methodological approach is applied to empirically examine the case of the olive oil industry's by‐product valorization.
David Polonio   +3 more
wiley   +1 more source

Catalytic Transfer Hydrogenation Reactions of Glycerol Over Zr‐Incorporated Zeolite Beta Prepared by a Mechanochemical Approach

open access: yesChemCatChem, Volume 18, Issue 9, 14 May 2026.
Metal‐modified beta zeolite has long been recognized as an important catalyst for reactions involving acid and bifunctional catalysis. The gas‐phase conversion of glycerol over Zr‐beta (prepared by a mechanochemical approach) demonstrated the remarkable versatility of this catalytic system, evidenced by the production of glycerol hydrogenolysis ...
Auguste Fernandes   +2 more
wiley   +1 more source

ZnO‐Functionalized Silicon Carbide Ceramic Membranes for Removing Impurities From Biodiesel

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 8, Issue 3, May 2026.
Silicon carbide (SiC) ceramic membranes functionalized with zinc oxide (ZnO) were assessed for biodiesel purification through crossflow filtration. The ZnO–SiC membranes effectively retained metallic impurities, especially calcium, sodium, and phosphorus, achieving levels that meet biodiesel quality standards.
Arthur Santos Romero   +6 more
wiley   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 5, Page 2206-2224, May 2026.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa   +4 more
wiley   +1 more source

Nanobiocatalysts: Potential Applications in Biofuel Production and Biotransformation

open access: yesCarbon Neutralization, Volume 5, Issue 3, May 2026.
The application of nanobiocatalysts in the field of biofuel production and the biotransformation of substrate were reviewed. Further, the possible research gaps in the field of biofuel and value‐added compound production and a possible way to enhance the application of nanobiocatalyst in future development are highlighted.
Preethi Muthu   +4 more
wiley   +1 more source

Glycerol Valorization to High‐Value Chemicals: Chemical and Biocatalytic Routes With Emphasis on Enzyme Immobilization and Laccase/TEMPO Systems: A Review

open access: yesChemNanoMat, Volume 12, Issue 5, May 2026.
Fossil fuel reserves are rapidly depleting, while global energy demands continue to rise, prompting researchers to seek sustainable alternatives. Among these, biofuels, particularly biodiesel, stand out as a biocompatible and friendly option. However, biodiesel production via transesterification generates large quantities of glycerol (GOL) as a by ...
Muhammad Faiz Ahmad   +4 more
wiley   +1 more source

Thermal Field–Enhanced Electro‐, Photo‐, and Photoelectrocatalytic Processes: Fundamentals, Material Design, and Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
Overview of thermal field–enhanced electro‐, photo‐, and photoelectrocatalytic processes: fundamentals, material design, and applications. As a very attractive approach to energy conversion and storage, electrocatalytic, photocatalytic, and photoelectrocatalytic strategies have gained increasing attention in the past decades.
Ziyi Qiao   +6 more
wiley   +1 more source

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