Flavonoids comprise a large family of plant derived polyphenolic compounds classified as flavonols, chalcones, aurones, flavanones, isoflavones, flavans, flavanonols, flavanols, and flavones differencing from each other in their structural group arrangements [1]. α,β-Unsaturated ketones display a wide range of pharmacological properties, including cytotoxicity towards different cancer cell line...

Low molecular weight phenols of Tannat red wines produced by Traditional Maceration (TM), Prefermentative Cold Maceration (PCM), Maceration Enzyme (ENZ) and grape-Seed Tannins additions (ST), were performed and discussed. Alternatives to TM increased wine phenolic contents but unequally, ST increased mainly smaller flavans-3-ol, PCM anthocyanins and ENZ proanthocyanidins (up to 2250 mg/L). Howe...

Abstract Amaryllidoideae is a subfamily belonging to the Amaryllidaceae and widely distributed in southern hemisphere. The well known for its content of pharmacologically active alkaloids represents an important epicenter Amaryllidaceae-alkaloid diversity. Other metabolites from such as phenolics including flavonoids, lignans, chromones, acetophenones, addition terpenoids ceramides, have been r...

We investigated the involvement of polyphenols in the Casuarina glauca-Frankia symbiosis. Histological analysis revealed a cell-specific accumulation of phenolics in C. glauca nodule lobes, creating a compartmentation in the cortex. Histochemical and biochemical analyses indicated that these phenolic compounds belong to the flavan class of flavonoids. We show that the same compounds were synthe...

Thai name: Huun-Hai) is a shrub that grows up to 1.5 m high, distributed in Northeastern Thailand. It is used in Thai traditional medicine for anti-fever purposes, as well as an anti-inflammatory agent. In the course of our continuing studies on Thai medicinal plants, the constituents of this plant were investigated. To the best of our knowledge, no phytochemical study has been carried out on t...

Background Botanical supplements with flavonoids possess the ability to reduce inflammatory markers such as CRP, IL-6, and TNF-a. Also, they could potentially help reduce sugarinduced weight gain and facilitate weight loss. Diafin is a non-stimulant, botanical, weight loss product created from a blend of standardized Free-B-ring flavonoids and flavans from two plant extracts isolated from the S...

Proanthocyanidins, also called condensed tannins, are oligomers and polymers of monomeric flavans linked through specific single (B linkages) and double (A linkages) bonds. These secondary plant metabolites have substantial antioxidant activity. They are prevalent in some foods and dietary supplements including several berries, red grapes and their wines, and seeds, baking chocolate, cinnamon, ...