Lignans: definition, chemical structure, biosynthesis, metabolism, foods

Contents in brief: What are lignans? Chemical structure of lignans Biosynthesis of lignans Metabolism by human gut microbiota Food sources References What are lignans? Lignans are a subgroup of non-flavonoid polyphenols. They are widely distributed in the plant kingdom, being present in more than 55 plant families, where they act as antioxidants and defense molecules […]

Isoflavones: definition, structure and soy

Contents in brief: What are isoflavones? Chemical structure of isoflavones Soy isoflavones: genistein, daidzein and glycitein Phytoestrogens and menopause References What are isoflavones? Isoflavones are colorless polyphenols belonging to the class of flavonoids. Unlike the majority of the other flavonoids, they have a restricted taxonomic distribution, being present almost exclusively in the Leguminosae or Fabaceae […]

Flavonoids: definition, structure and classification

Contents in brief: What are flavonoids? Chemical structure of flavonoids Classification of flavonoids References What are flavonoids? Flavonoids are the most abundant polyphenols in human diet, representing about 2/3 of all those ones ingested. Like other phytochemicals, they are the products of secondary metabolism of plants and, currently, it is not possible to determine precisely […]

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