Related Experiment Video
Updated: Jul 17, 2026

06:38
Screening and Isolation of C-Glycoside-Cleaving Intestinal Bacteria
Published on: February 28, 2025
Flavonol Glycosides from Moghania faginea
1Madaus AG, Abt. Chemie Forschung, Ostmerheimer Str. 198, D-5000 Köln 91, Federal Republic of Germany.
Planta Medica
|August 1, 1990
Summary
Five unique flavonol 3-O-glycosides were identified in MOGHANIA FAGINEA leaves. This study details novel compounds and expands knowledge of plant-derived flavonoids.
Area of Science:
- Phytochemistry
- Natural Product Chemistry
- Organic Chemistry
Background:
- MOGHANIA FAGINEA is a plant species with potential for novel phytochemical discovery.
- Flavonol glycosides are a class of plant secondary metabolites with diverse biological activities.
Purpose of the Study:
- To isolate and characterize flavonol 3-O-glycosides from the leaves of MOGHANIA FAGINEA.
- To identify novel compounds within this plant species.
Main Methods:
- Isolation using chromatographic techniques such as Thin-Layer Chromatography (TLC) and High-Performance Liquid Chromatography (HPLC).
- Structure elucidation employing spectroscopic methods including UV, IR, proton Nuclear Magnetic Resonance ((1)H-NMR), carbon Nuclear Magnetic Resonance ((13)C-NMR), and Fast Atom Bombardment Mass Spectrometry (FAB-MS).
Main Results:
- Five flavonol 3-O-glycosides were successfully isolated and identified.
- The identified compounds include quercetin-3-O-rhamnoside (quercitrin), myricetin-3-O-rhamnoside (myricitrin), quercetin-3-O-xylosyl(1-->2)rhamnoside, myricetin-3-O-xylosyl(1-->2)rhamnoside, and kaempferol-3-O-xylosyl(1-->2)rhamnoside.
- These compounds are reported for the first time in MOGHANIA FAGINEA, with some potentially being new chemical entities.
Conclusions:
- The phytochemical investigation of MOGHANIA FAGINEA leaves yielded five distinct flavonol 3-O-glycosides.
- This research contributes new chemical knowledge regarding the flavonoid profile of MOGHANIA FAGINEA and introduces potentially novel compounds to the scientific literature.
Related Concept Videos
Antifungal Agents
Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to cholesterol contributes to...
Opioid Analgesics: Morphine and Other Natural Cogeners
Opioids are a class of drugs that mimic endogenous opioid peptides and act on opioid receptors, and help in pain relief. These compounds are classified as natural, synthetic, or semi-synthetic. Natural opioids, like morphine, codeine, and thebaine, are derived from the opium poppy plant (Papaver somniferum or Papaver album) and are termed opiates. Synthetic opioids are artificial, while semi-synthetic opioids combine natural and synthetic compounds. Morphine, a prototypical opioid, possesses a...
Oral Hypoglycemic Agents: α-Glucosidase Inhibitors
α-glucosidase inhibitors, including acarbose (Precose), miglitol (Glyset), and voglibose (Voglib) (primarily available in Asia), are drugs that control blood sugar levels by delaying the digestion of starch and disaccharides. They achieve this by inhibiting α-glucosidase enzymes in the intestine, which slow the absorption of carbohydrates in the intestine, which in turn leads to a prolonged release of the glucoregulatory hormone GLP-1 from intestinal L-cells.
Acarbose and miglitol are typically...
Acarbose and miglitol are typically...
Cellulose and Pectic Polysaccharides
Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the parenchyma cells of...
As a cell matures, its cell wall specializes according to its type. For example, the parenchyma cells of...
