Search results for "Folin–Ciocalteu"

showing 2 items of 2 documents

Synthesis and Antioxidative Properties of 1,2,3,4-Tetrahydropyridine Derivatives with Different Substituents in 4-Position

2022

Natural products are an excellent source of inspiration for the development of new drugs. Among them, betalains have been extensively studied for their antioxidant properties and potential application as natural food dyes. Herein, we describe the seven-step synthesis of new betalamic acid analogs without carboxy groups in the 2- and 6-position with an overall yield of ~70%. The Folin–Ciocalteu assay was used to determine the antioxidant properties of protected intermediate 21. Additionally, the five-step synthesis of betalamic acid analog 35 with three ester moieties was performed. Using NMR techniques, the stability of the obtained compounds towards oxygen was analyzed.

Folin–CiocalteuPyrrolidinesantioxidantPyridinesLemieux–Johnson oxidationOrganic ChemistryBetalainsPharmaceutical Scienceindicaxanthinsbetalamic acidAntioxidantsdehydrobrominationAnalytical ChemistryChemistry (miscellaneous)piperidin-4-onesDrug Discoverycis/trans diastereomersMolecular MedicineWittig reactionindicaxanthins; betalamic acid; antioxidant; dehydrobromination; TEMPO oxidation; (E)-(Z) configuration; piperidin-4-ones; <i>cis</i>/<i>trans</i> diastereomers; <i>Wittig</i> reaction; <i>Lemieux</i>–<i>Johnson</i> oxidation; Folin–CiocalteuPhysical and Theoretical ChemistryTEMPO oxidation(E)-(Z) configurationMolecules
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Edible Insects an Alternative Nutritional Source of Bioactive Compounds: A Review

2023

Edible insects have the potential to become one of the major future foods. In fact, they can be considered cheap, highly nutritious, and healthy food sources. International agencies, such as the Food and Agriculture Organization (FAO), have focused their attention on the consumption of edible insects, in particular, regarding their nutritional value and possible biological, toxicological, and allergenic risks, wishing the development of analytical methods to verify the authenticity, quality, and safety of insect-based products. Edible insects are rich in proteins, fats, fiber, vitamins, and minerals but also seem to contain large amounts of polyphenols able to have a key role in specific bi…

Settore CHIM/10 - Chimica Degli AlimentiOrganic ChemistryPharmaceutical ScienceSettore CHIM/12 - Chimica Dell'Ambiente E Dei Beni Culturaliphenols and flavonoidAnalytical Chemistrypolyphenols bioactivityChemistry (miscellaneous)Drug DiscoveryMolecular MedicineSettore CHIM/01 - Chimica Analiticapolyphenols Folin–Ciocalteu methodPhysical and Theoretical ChemistryInsect-based foodMolecules
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