Results 81 to 90 of about 5,253 (234)

Supercritical Fluids: A Promising Technique for Biomass Pretreatment and Fractionation

Frontiers in Bioengineering and Biotechnology, 2020
Lignocellulosic biomasses are primarily composed of cellulose, hemicelluloses and lignin and these biopolymers are bonded together in a heterogeneous matrix that is highly recalcitrant to chemical or biological conversion processes.
Estephanie Laura Nottar Escobar, Thiago Alessandre da Silva, Cleverton Luiz Pirich, Marcos Lúcio Corazza, Luiz Pereira Ramos   +4 more
doaj   +1 more source

Microwave-Assisted Synthesis and Evaluation of Antimicrobial Activity of 3-{3-(s-Aryl and s-Heteroaromatic)acryloyl}-2Hchromen-2-one Derivatives [PDF]

, 2010
The exploration of potential utilization of microwaves as an energy source for heterocyclic synthesis was herein investigated using condensation of 3-acetylcoumarin (1) with aromatic and heteroaromatic aldehydes to afford the corresponding aromatic ...
Ajani, Al-Soud, Anderson, Anzari, Curir, DekicÌ, Devi, Gaber, Govori, Gürsoy, Hayes, Hwu, Jayashree, Kontogiorgis, Kostova, Kotali, Lacy, Larsen, Lee, Lewis, Lisgarten, Luszcski, Lévai, Majumdar, Mashelkar, Meteeva, Montagner Souza, Mouri, Neyts, Pivonka, Ragitha, Raviraj, Roma, Russell, Satyanarayana, Saxena, Schobert, Siddiqui, Son, Srinivas, Tamilvanan, Tassies, Tosun, Tran, Venugopala, Yamamoto, Yenjai, Yun   +47 more
core   +1 more source

A Comparative Analysis of Volatile Compounds Extracted From Finger Citron Using Steam Distillation and Cold‐Press Methods

Journal of Chemistry, Volume 2026, Issue 1, 2026.
Background Finger citron is a highly appreciated functional food. The volatile oil derived from finger citron is known to contain a range of bioactive compounds that enhance sleep quality, reduce alcohol‐induced liver damage, and improve liver lipid metabolism.
Sha Liang, Yuqing liu, Chuanshun Zhou, Dan Huang, Min Tang, Munmun Bardhan   +5 more
wiley   +1 more source

Effects of Sucrose Degradation Products on the Stability and Antioxidant Activity of Blueberry Anthocyanins under Processing and Storage Conditions [PDF]

Shipin Kexue
This study elucidated the effects of sucrose degradation products, 2-furaldehyde (2-F) and 5-hydroxymethylfurfural (5-HMF), on the stability and antioxidant activity of anthocyanins under different processing and storage conditions.
XIN Meili, LIANG Qi, TIAN Jinlong, YANG Shufang, YANG Yiyun, LI Bin
doaj   +1 more source

Preparation of 5-Hydroxymethylfurfural from Glucose and Fructose in Ionic Liquids by Reactive Vacuum Distillation Over a Solid Catalyst [PDF]

, 2017
BACKGROUND: The production of 5-hydroxymethylfurfural (5-HMF) from biomass provides an alternative pathway for many commercial chemicals and polymers particularly for countries with high insolation such as sub-Saharan Africa.
Evans, JRG, Hailes, HC, Nasirudeen, MB
core   +1 more source

Potent Antisickling Furaldehyde Analogs for Acute Sickle Cell Therapy: Enhanced Efficacy and Intravenous Formulation Potential

ChemMedChem, Volume 20, Issue 22, November 18, 2025.
This study reports novel 5‐HMF analogs with potent antisickling activities. Lead compound MMA509 enhances hemoglobin oxygen affinity and prevents erythrocyte sickling. Crystal structure of hemoglobin‐MMA509 complex explains MMA509 mechanism of action. An IV formulation is successfully developed, positioning MMA509 as a promising fast‐acting treatment ...
Abdelsattar M. Omar, Moustafa E. El‐Araby, Tarek A. Ahmed, Akua K. Donkor, Albert Opare, Mohini S. Ghatge, Anfal S. Aljahdali, Rana T. Alhashimi, Trevohn N. Robinson, Benita Balogun, Mariana Macias, Salma Roland, Yan Zhang, Faik N. Musayev, Osheiza Abdulmalik, Martin K. Safo   +15 more
wiley   +1 more source

Synthesis, characterization and bio-activity of metal complexes of bidentate N-S isomeric Schiff bases derived from S-methyldithiocarbazate (SMDTC) and the X-ray structure of the bis[S-methyl-β-N-(2-furyl-methylketone) dithiocarbazato]cadmium(II) complex. [PDF]

, 2004
Condensation of SMDTC with 2-furyl-methylketone and 5-methyl-2-furaldehyde gave isomeric Schiff bases, (NS) and (NS'). The metal complexes of these uninegatively charged bidentate Schiff base ligands with cadmium, tin, iron, lead and cobalt have been ...
Ali, A.M., Chew, Kar-Beng, Crouse, Karen Anne, Fun, H.-K., Tarafder, M.T.H., Yamin, B.M.   +5 more
core   +1 more source

Validação de método para a determinação de 5-hidroximetilfurfural em mel por cromatografia líquida e sua influência na qualidade do produto Method validation to hmf determination in honey by HPLC-UV and its influence on the product quality

Química Nova, 2010
In honey 5-hydroxymethyl-2-furaldehyde (HMF) is one of the most typical products of degradation: it is usually absent in fresh honey, but its concentration tends to rise as a result of heating processes or long-term storage.
Gisele da Silveira Lemos, José Soares dos Santos, Maria Lúcia Pires dos Santos   +2 more
doaj   +1 more source

Presence of 5-hydroxyguaiacyl units as native lignin constituents in plants as seen by Py-GC/MS [PDF]

, 2007
Instituto de Recursos Naturales y Agrobiología de Sevilla, CSIC, P.O. Box 1052, 41080-Seville, Spain 2Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, E-28040 Madrid, Spain E-mail address: delrio@irnase.csic.es (J.C. del Río)The presence
Behnke, Bradley J., Brülls, Christian Simon, Davis, Robert T., McCullough, Danielle J., Powers, Scott K., Stabley, John N.   +5 more
core   +1 more source

Electrocatalytic Glucose Upgrading by Sulfonated Carbon for Sustainable Manufacturing

ChemCatChem, Volume 17, Issue 17, September 5, 2025.
We are one step closer to sustainable manufacturing after successfully converting glucose into various raw materials (oxalic acid, gluconic acid, tartaric acid, maleic acid, glycolic acid, arabinose, formic acid, acetic acid, and 5‐hydroxymethylfurfural) by electrocatalytic oxidation with a sulfonated carbon catalyst. Abstract In a sustainable economy,
Andrew Carkner, Caio Furukawa, Alaleh Esfandiari, Ali Seifitokaldani, Jan Kopyscinski   +4 more
wiley   +1 more source