Results 1 to 10 of about 1,432,794 (361)

Chemical Composition of Leaves, Stem, and Roots of Peperomia pellucida (L.) Kunth

open access: yesMolecules, 2022
Peperomia pellucida is a species known in the Amazon as “erva-de-jabuti” that has been used in several therapeutic applications based on folk medicine.
Paulo Wender P. Gomes   +10 more
doaj   +1 more source

Margaritaria nobilis L.F. (Phyllanthaceae): Ethnopharmacology and Application of Computational Tools in the Annotation of Bioactive Molecules

open access: yesMetabolites, 2022
Margaritaria nobilis is a shrubby species widely distributed in Brazil from the Amazon to the Atlantic Rainforest. Its bark and fruit are used in the Peruvian Amazon for disinfecting abscesses and as a tonic in pregnancy, respectively, and its leaves are
Johan Carlos C. Santiago   +8 more
doaj   +1 more source

Putative Identification of New Phragmaline-Type Limonoids from the Leaves of Swietenia macrophylla King: A Case Study Using Mass Spectrometry-Based Molecular Networking

open access: yesMolecules, 2023
Swietenia macrophylla King is a plant commonly known as Brazilian mahogany. The wood from its stem is highly prized for its exceptional quality, while its leaves are valued for their high content of phragmalin-type limonoids, a subclass of compounds ...
José Diogo E. Reis   +7 more
doaj   +1 more source

Feature-Based Molecular Network-Guided Dereplication of Natural Bioactive Products from Leaves of Stryphnodendron pulcherrimum (Willd.) Hochr

open access: yesMetabolites, 2021
Stryphnodendron pulcherrimum is a species known to have a high content of tannins. Accordingly, its preparations are used in southern Pará, Brazil, for their anti-inflammatory and antimicrobial activities, but so far, its chemical profile composition ...
Paulo Gomes   +7 more
doaj   +1 more source

Constituents of Chamaecrista diphylla (L.) Greene Leaves with Potent Antioxidant Capacity: A Feature-Based Molecular Network Dereplication Approach

open access: yesPharmaceutics, 2021
Chamaecrista diphylla (L.) Greene (Fabaceae/Caesalpiniaceae) is a herbaceous plant that is widely distributed throughout the Americas. Plants from this genus have been used in traditional medicine as a laxative, to heal wounds, and to treat ulcers, snake
Paulo Gomes   +11 more
doaj   +1 more source

Antiviral Plants from Marajó Island, Brazilian Amazon: A Narrative Review

open access: yesMolecules, 2022
Diseases caused by viruses are a global threat, resulting in serious medical and social problems for humanity. They are the main contributors to many minor and major outbreaks, epidemics, and pandemics worldwide.
Paulo Wender P. Gomes   +9 more
doaj   +1 more source

On-Chip Liquid Chromatography

open access: yesEncyclopedia, 2022
On-chip liquid chromatography (LC) refers to LC technology that is miniaturized to fit on a microchip to enable fast, high-throughput analysis, with small sample volumes and low reagent consumption.
Makoto Tsunoda
doaj   +1 more source

Comparison of enhanced fluidity liquid chromatography with liquid chromatography for enantioseparation of selected γ-lactam derivatives

open access: yesJournal of Chromatography Open, 2022
The present paper describes the study of eight racemic γ-lactam derivatives with the goal of comparing three modes of liquid chromatography which are the reversed-phase mode, the normal-phase mode and the polar organic solvent chromatography mode with ...
Anca-Elena Dascalu   +4 more
doaj   +1 more source

Liquid chromatography and liquid chromatography-mass spectrometry analysis of donepezil degradation products [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2015
This study describes the investigation of degradation products of donepezil (DP) using stability indicating RP-HPLC method for determination of donepezil, which is a centrally acting reversible acetylcholinesterase inhibitor.
Mladenović Aleksandar R.   +6 more
doaj   +1 more source

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