نتایج جستجو برای: polar compounds
تعداد نتایج: 268855 فیلتر نتایج به سال:
The photochemical behaviour of amidopyrine (1) (4-dimethylamino-1,5-dimethyl-2-phenyl-4-pyrazolin-3-one) in several polar solvents has been reported [3, 4]. A number of compounds were isolated as fragmentation or rearrangement products; however most of the reported products represent addition compounds due to interaction of the solvent with an a-lactam intermediate or one of the valence isomers...
The valorization of the brewer's spent grain (BSG) generated in a craft beer industry was studied by subcritical water hydrolysis semi-continuous fixed-bed reactor. Temperature varied from 125 to 185 °C at constant flow rate 4 mL/min. Biomass yielded maximum 78% solubilized protein 185 °C. Free amino acids presented level 160 °C with value 55 mg free acids/gprotein-BSG. Polar acid lower tempera...
Two hydroxy-functionalized hyper-cross-linked ultra-microporous compounds have been synthesized by Friedel-Crafts alkylation reaction and characterised with different spectroscopic techniques. Both compounds exhibit an efficient carbon dioxide uptake over other gases like N2, H2 and O2 at room temperature. A high isosteric heat of adsorption (Qst) has been obtained for both materials because of...
The study describes the alterations in metabolomic profiles of four tomato fruit mutations introgressed into Solanum lycopersicum cv. San Marzano, a well-known Italian traditional variety. Three lines carrying variants affecting content all pigments, high pigment-1 (hp-1), hp-2, pigment diluter (pd), and combination Anthocyanin atroviolaceum (Aft_atv), were selected, characterized. Biochemical ...
The composition of sterols, volatiles and some polar compounds from three Corallina samples (C. granifera and C. mediterranea from the Black Sea and C. mediterranea from the Mediterranean Sea) was established. The sterol composition of the Black Sea samples was similar but it differs from that of the Mediterranean sample. The composition of the volatiles was very complex. The main groups of con...
Modified flavone derivatives show diverse pharmacological effects, which may be attributed to their interaction with lipid membranes. We have studied the interaction of Chrysin (C) and some novel flavone derivatives, 4 ́–methoxyflavone (C1), 4 ́– chloroflavone (C2) and 4 ́–nitroflavone (C3) with dipalmitoylphosphatidylcholine (DPPC) using molecular dynamic (MD) simulation, differential scanning ca...
Structure-activity relationships of cycloalkylamide compounds as inhibitors of human sEH were investigated. When the left side of amide function was modified by a variety of cycloalkanes, at least a C6 like cyclohexane was necessary to yield reasonable inhibition potency on the target enzyme. In compounds with a smaller cycloalkane or with a polar group on the left side of amide function, no in...
Marine biofunctional peptides are protein molecules that promote health by blocking certain harmful chemical pathways in the human body, such as the laying down of cholesterol in blood vessels. Marine bivalves are considered one such rich source of these peptides and bioactive compounds. These, bioactive peptides possess various biological activities such as antibacterial, antioxidant, anticoag...
Using SAR from two related series of pyrimidinetrione-based inhibitors, compounds with potent MMP-13 inhibition and >100-fold selectivity against other MMPs have been identified. Despite high molecular weights, clogPs, and polar surface areas, the compounds are generally well absorbed and have excellent pharmacokinetic (PK) properties when dosed as sodium salts. In a rat fibrosis model, a compo...
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