Flavan-3-olFlavan-3-ols (sometimes referred to as flavanols) are a subgroup of flavonoids. They are derivatives of flavans that possess a 2-phenyl-3,4-dihydro-2H-chromen-3-ol skeleton. Flavan-3-ols are structurally diverse and include a range of compounds, such as catechin, epicatechin gallate, epigallocatechin, epigallocatechin gallate, proanthocyanidins, theaflavins, thearubigins. They play a part in plant defense and are present in the majority of plants.
Naturally occurring phenolsIn biochemistry, naturally occurring phenols are natural products containing at least one phenol functional group. Phenolic compounds are produced by plants and microorganisms. Organisms sometimes synthesize phenolic compounds in response to ecological pressures such as pathogen and insect attack, UV radiation and wounding. As they are present in food consumed in human diets and in plants used in traditional medicine of several cultures, their role in human health and disease is a subject of research.
Asti wineAsti (also known as Asti Spumante) is a sparkling white Italian wine that is produced throughout southeastern Piedmont but is particularly focused around the towns of Asti and Alba. Since 1993 the wine has been classified as a Denominazione di Origine Controllata e Garantita (DOCG) and as of 2004 was Italy's largest producing appellation. On an average vintage more than ten times as much Asti is produced in Piedmont than the more well-known Piedmontese red wine Barolo.
ValpolicellaValpolicella (UKˌvælpɒlɪˈtʃɛlə, USˌvɑːlpoʊl-,_ˌvælpoʊl-, ˌvalpoliˈtʃɛlla) is a viticultural zone of the province of Verona, Italy, east of Lake Garda. The hilly agricultural and marble-quarrying region of small holdings north of the Adige is famous for wine production. Valpolicella ranks just after Chianti in total Italian Denominazione di Origine Controllata (DOC) wine production. The red wine known as Valpolicella is typically made from three grape varieties: Corvina Veronese, Rondinella, and Molinara.
