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• The seeds of Ziziphus lotus contain significantly higher levels of protein (8.37 to 27.75%), lipid (35.39 to 48.01%), potassium (125.874 to 325.408 mg. 100−1 g), polyphenol (439.465 to 1349.46 mg.GAE.100 g−1), flavonoid (83.908 to 98.259 mg.QE.100 g−1), tannins (55.268 to 277.94 mg.GAE.100 g−1), and chlorophyll b (11.2 to 30.4 μg g−1) compared to the fruit pulp.
• The quantitative analysis of Achyranthes aspera L. leaves, Berberis lycium Royle roots, and Vitex negundo L. leaves was performed using UPLC-PDA, which confirmed the presence of polyphenols and flavonoids in their methanolic extracts.
• Polyphenols are categorized into four distinct groups: phenolic acids, flavonoids, tannins, and stilbenes.
• F. Conforti et al. published a study in 2009 in Food Chemistry regarding the protective ability of Mediterranean dietary plants against oxidative damage, specifically examining the role of radical oxygen species in inflammation and the content of polyphenols, flavonoids, and sterols.
• Ultra Performance Liquid Chromatography–Photodiode Array (UPLC-PDA) is an analytical technique used to identify and quantify phytochemicals in plant materials by detecting bioactive compounds like polyphenols, flavonoids, and alkaloids based on their UV absorbance and retention time.
• The study of the nutraceutical value of medicinal plants aims to confirm traditional uses, understand nutritional and medicinal benefits, encourage use as natural health supplements, support conservation, and examine the presence of polyphenols and flavonoids in methanolic extract using 270 nm wavelength.
• Researchers analyzed the medicinal plants Achyranthes aspera L., Berberis lycium Royle, and Vitex negundo L. gathered from the Renukaji Wildlife Sanctuary in Sirmaur for polyphenols and flavonoids using the UPLC-PDA method (Waters Acquity UPLC H-class).
• Phytochemical analysis of Dichrostachys cinerea confirms the presence of biologically active compounds including flavonoids, polyphenols, alkaloids, saponins, terpenoids, and tannins.
• Crataegus species are abundant in amino acids, minerals, vitamins, and bioactive components such as polyphenols, flavonoids, and triterpenoids.