Results 91 to 100 of about 42,651 (287)
Estudo químico e atividades antiproliferativa, tripanocida e leishmanicida de Maxillaria picta
Química Nova, 2014 The chemical study of the orchid Maxillaria picta resulted in the isolation of the bioactive stilbenes phoyunbene B and phoyunbene C, in addition to four phenolic acids, one xanthone, steroidal compounds and two triterpenes.
Thiago L. de Almeida +12 more
doaj +1 more source
Escobajos de la vid como fuente de compuestos fenólicos con propiedades antioxidantes [PDF]
, 2019 Winemaking industry generates considerable amounts of bunch stems that are usually wasted despite their potential value as source of bioactive compounds. Phenolic profiles and antioxidant capacity (AC) of bunch stem extracts from eight grape varieties of
Bottini, Ambrosio Rubén +2 more
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Synthesis of derivatives of methoxydibenzo[b, f]oxepine in the presence of sodium azide [PDF]
, 2016 Dibenzo[b,f]oxepine is an important scaffold in medicinal chemistry and its derivatives occur in several medicinally important plants. A new approach to methoxydibenzo[b,f]oxepines (15–21) proceeding under mild reaction conditions, has been developed ...
Grzesiuk, Elzbieta +4 more
core +1 more source
Silent Partners in the Mill: Unveiling the Role of Additives in Mechanochemical Synthesis
Chemistry – A European Journal, EarlyView.Mechanochemistry offers a sustainable, solvent‐free alternative to traditional synthesis, often enhanced by additives in a process known as additive‐assisted grinding. This review discusses how various additives, including liquids, ionic solids, and advanced materials like ionic liquids and piezoelectric compounds, improve reaction efficiency ...
Johanna Breinsperger +3 more
wiley +1 more source
Regulation of mRNA translation by a photoriboswitch. [PDF]
, 2020 Optogenetic tools have revolutionized the study of receptor-mediated processes, but such tools are lacking for RNA-controlled systems. In particular, light-activated regulatory RNAs are needed for spatiotemporal control of gene expression.
Abdelsayed, Michael M +7 more
core +1 more source
Energy Landscapes in Chemical Reactions and Transport
ChemPhysChem, Volume 26, Issue 6, March 15, 2025.Kinetics/dynamics of chemical reactivity and transport of chemical species in a solid are both determined by the energy landscape in which they take place. Discussing common grounds but also distinct differences may help in advancing the understanding in both fields.
Karl‐Michael Weitzel
wiley +1 more source
Recent Developments in the Field of Air‐Stable Nickel(0) Precatalysts for Cross‐Coupling Reactions
European Journal of Inorganic Chemistry, EarlyView.The development of bench‐stable Ni(0) sources aims to replace air‐sensitive [Ni(COD)2] (cod = cycloocta‐1,5‐diene) with easy‐to‐handle alternatives. Through a targeted ligand design, using electron‐deficient dienes, carbenes, and fluorophosphines, researchers have achieved air‐ and moisture‐tolerant complexes that show high catalytic activity in cross ...
Franziska Flecken, Schirin Hanf
wiley +1 more source
Natural bioactive compounds from winery by-products as health promoters: A review [PDF]
, 2016 The relevance of food composition for human health has increased consumers’ interest in the consumption of fruits and vegetables, as well as foods enriched in bioactive compounds and nutraceuticals.
Baenas, Nieves +6 more
core +1 more source
Biomedicines, 2019 Muscadine grape is rich in stilbenes, which include resveratrol, piceid, viniferin, pterostilbene, etc. Resveratrol has been extensively studied for its biological activities; however, the synergistic effect of stilbene compounds in berry extracts is ...
S. P. Balasubramani +2 more
semanticscholar +1 more source
Food Chemistry International, EarlyView.Boiling retained the nutrients and polyphenol compounds in Plectranthus esculentus tubers better than frying or roasting. A bioavailability study showed that the phytates and oxalates in the tuber may not affect the bioavailabilities of calcium, zinc, or iron in Plectranthus esculentus tubers when eaten.
Mercy Amarachi Iroaganachi +4 more
wiley +1 more source