Results 41 to 50 of about 8,668,298 (309)

Determination of Pentacyclic Triterpenoids in Plant Biomass by Porous Graphitic Carbon Liquid Chromatography—Tandem Mass Spectrometry

Molecules, 2023
Pentacyclic triterpenoids (PCTs), which possess a number of bioactive properties, are considered one of the most important classes of secondary plant metabolites. Their chromatographic determination in plant biomass is complicated by the need to separate
Ilya S. Voronov, Danil I. Falev, Anna V. Faleva, Nikolay V. Ul’yanovskii, Dmitry S. Kosyakov   +4 more
doaj   +1 more source

Escaping mechanisms of ESKAPE pathogens from antibiotics and their targeting by natural compounds

Biotechnology Reports, 2022
Highlights • ESKAPE pathogens display multidrug resistance (MDR) through various mechanisms.• Mechanisms adapted by ESKAPE pathogens to counteract antibiotics have been described.• Selected natural compounds with bactericidal effect towards ESKAPE ...
Ragi Jadimurthy, Shilpa Borehalli Mayegowda, S. Nayak, C. D. Mohan, K. Rangappa   +4 more
semanticscholar   +1 more source

The determination of isoflavones and coumestrol by capillary electrophoresis

Czech Journal of Food Sciences, 2001
The separation of six isoflavones (biochanin A, isoformononetin, formononetin, prunetin, daidzein and genistein) and coumestrol on an uncoated fused-silica capillary electrophoresis column was optimised using alkaline borate buffer as electrolyte and DAD
J. Moravcová, T. Kleinová
doaj   +1 more source

Galantamine Quantity and Alkaloid Profile in the Bulbs of Narcissus tazetta and daffodil cultivars (Amaryllidaceae) Grown in Israel

Metabolites, 2021
Alkaloids produced by the bulbs of the Amaryllidaceae are a source of pharmaceutical compounds. The main alkaloid, galantamine, is a reversible acetylcholinesterase inhibitor and allosteric nicotinic receptor modulator, which slows cognitive and ...
Dana Atrahimovich, Raviv Harris, Ron Eitan, Menashe Cohen, Soliman Khatib   +4 more
doaj   +1 more source

Cyclodextrins, Natural Compounds, and Plant Bioactives—A Nutritional Perspective

Biomolecules, 2021
Cyclodextrins (CDs) are a group of cyclic oligosaccharides produced from starch or starch derivatives. They contain six (αCD), seven (βCD), eight (γCD), or more glucopyranose monomers linked via α-1,4-glycosidic bonds.
Svenja Wüpper, K. Lüersen, G. Rimbach
semanticscholar   +1 more source

Identification of natural compounds as SARS-CoV-2 entry inhibitors by molecular docking-based virtual screening with bio-layer interferometry

Pharmacological Research, 2021
Coronavirus Disease 2019 (COVID-19) is caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), which enter the host cells through the interaction between its receptor binding domain (RBD) of spike glycoprotein with angiotensin-converting ...
Dingqi Zhang, Sami Hamdoun, R. Chen, Lijun Yang, Chi Kio Ip, Y. Qu, Run-feng Li, Haiming Jiang, Zi-feng Yang, Sookja K. Chung, Liang Liu, V. Wong   +11 more
semanticscholar   +1 more source

Myorelaxation, respiratory depression and electrocardiographic changes caused by the administration of extract of açai (Euterpe oleracea Mart.) stone in rats

Toxicology Reports, 2021
The biological and pharmacological properties of natural polyphenols of the extract of Euterpe oleracea stone (EEOS) are associated with the central nervous system (CNS).
Nilton Akio Muto, Moisés Hamoy, David Cristian Rodrigues Lucas, Bruno Brito Teixeira, Adrielle Felicia Santos Almeida, Thamires de Castro Navegantes, Vaniza Sheila de Sousa Ferreira de Sá, Brenda Pinto de Moraes, João Paulo do Vale Medeiros, Yasmin Amorim dos Santos, Claúdia Quintino da Rocha, Vanessa Joia de Mello, Hervé Rogez   +12 more
doaj   +1 more source

The potential future roles of natural compounds and microbial bioherbicides in weed management in crops

Advances in Weed Science, 2022
: There is a popular demand for more natural means of pest management, including weed management, as well as a demand by farmers for herbicides with new chemistries and/or new modes of action to which current weed resistances do not apply.
S. Duke, Z. Pan, J. Bajsa-Hirschel, C. Boyette   +3 more
semanticscholar   +1 more source

(±)-2-{[4-(4-Bromophenyl)-5-phenyl-4H-1,2,4-triazol-3-yl]sulfanyl}-1-phenyl-1-ethanol

Molbank, 2021
The novel racemic secondary alcohol (±)-2-{[4-(4-bromophenyl)-5-phenyl-4H-1,2,4-triazol-3-yl]sulfanyl}-1-phenyl-1-ethanol (12) has been successfully synthesized through S-alkylation of 4-(4-bromophenyl)-5-phenyl-4H-1,2,4-triazole-3-thiol (10) in alkaline
Milenca Mariana Vorga, Valentin Badea
doaj   +1 more source

Flavonoids as Promising Natural Compounds for Combating Bacterial Infections

International Journal of Molecular Sciences
The increasing emergence and dissemination of multidrug-resistant (MDR) bacterial pathogens have intensified the need for new antibiotics and alternative therapeutic strategies.
Ying Liu, Jiajia Zhu, Zhenyi Liu, Yan Zhi, Chen Mei, Hongjun Wang   +5 more
semanticscholar   +1 more source