What is the relationship between polyphenols antioxidants, flavanols and lignans?
It it commonly said that antioxidants have anti-cancer properties, as well as every other health benefit imaginable, from preventing pathogens to reducing seasonal allergies. " Phenolic compounds have diverse defensive functions in plants , such as cell wall strengthening and repair (lignin and suberin) and antimicrobial and antifungal activities. Some polyphenols are phytoanticipins, compounds with a defensive role that are not synthesised in response to a pathogen attack but rather are constitutively present in plant cells. "Phenolic constituents occur on the surface of plants or in the cytoplasmic fraction of the epidermal cells, where they act as a deterrent to pathogens . In contrast, phenolic phytoalexins are secreted by wounded plants or in response to incompatible pathogens. The induced defense response includes cell death and the formation of a lesion that limits the growth of the pathogen. Cells around the lesion accumulate polyphe...