Quercetin derivatives in roasted Coffea arabica and its popular beverages.

This study is focused on quantification of six quercetin derivatives in roasted Coffea arabica L. from different geographical origins and post-harvest processing methods for the first time. Popular beverages (espresso and moka) were also studied.

Quantification of Bioactive Compounds by HPLC-ESI-MS/MS and Evaluation of Antioxidant and Enzyme Inhibitory Activities of Acorn Flour Extracts.

This study provides the first comprehensive evaluation of the bioactive potential of acorn flour extracts (, Fagaceae) prepared at different temperatures (20, 60, 80 and 100 °C), focusing on polyphenolic content, antioxidant properties and enzyme inhibitory activities. Through HPLC-ESI-MS/MS analysis, 36 bioactive compounds were identified, with the extract at 60 °C showing the highest concentrations of key polyphenols, notably gallic acid (210,008.9 mg·kg) and ellagic acid (45,469.

Ultrasound-assisted extraction versus traditional Soxhlet apparatus for the obtention of polyphenols, carotenoids and tocopherols from Tagetes erecta L. flowers.

Background: Tagetes erecta L., commonly known as American marigold, serves as a food plant used for the extraction of carotenoids such as lutein, employed both as culinary ingredient in certain dishes and for its ornamental and medicinal applications. Two extraction techniques, Soxhlet and ultrasound-assisted extraction (UAE), were used on two cultivars (yellow and orange) of T.

Antioxidant, Enzyme and Molecular Docking Tyrosinase Inhibitory Activities of Major Polyphenols in Boscia coriacea Graells, Grewia erythraea (Schweinf.) Chiov., Ochradenus baccatus Delile, and Orthosiphon pallidus Royle Ex Benth.

Boscia coriacea Graells (BC), Grewia erythraea (Schweinf.) Chiov. (GE), Ochradenus baccatus Delile (OB), and Orthosiphon pallidus Royle ex Benth.

Morphological Characterization, Polyphenolic Profile, and Bioactive Properties of , an Ancient Mediterranean Variety of Sweet Citrus.

of Mattinata, a rare and ancient Mediterranean citrus fruit, was investigated by sequence analysis of the ribosomal internal transcribed spacer regions, which assigns it as a variety of L. Morphological, chemical, and biomolecular approaches, including light and electron microscopy, HPLC-ESI-MS/MS, and antioxidant and anti-inflammatory assays, were used to characterize the flavedo and albedo parts, usually rich in bioactive compounds. The morphological findings showed albedo and flavedo cellular structures as "reservoirs" of nutritional components.