tema 6 Flashcards
what are polyphenols
secondary metabolites of plants and are generally involved in defense against ultraviolet radiation.
May contrbute in: color, flavor, oxidative stability
EJ: grapes, apple, berries 200-300 mg
Health benefits
protection from:
infections
asthma
hypertension
cancer
diabetes
Phenolic acids, what are they?
we can find them in foods.
Divided ein 2 classes :
benzonic acid and cinnamic acid
Caffeic acid is antimicrobial
has been employed as an alternative strategy to combat microbial pathogenesus and chronic infection induced by microbes – bacteria, fungi
Anthocyanins
Are colored water-soluble pigments belonging to the phenolic group.
Anthocyanins responsible for the colors, red, purple, and blue, are in fruits and vegetables.
In acidic condition, anthocyanins appear as redbut turn bluewhen the pH increases.2.6.1. ANTHOCYANINS
blue tortillas
acidity
ANTHOCYANINS AS PREBIOTICS
Anthocyanins could improve human health by modulating intestinal microorganisms
Blueberries and their extracts could exert a prebiotic activity
Anthocyanins
They have an intense variation in Ph in the digestion process.
antho – to — metabolites
Antiobesity effects
Regulation of lipid metabolism
Inhibition of lipid absorption
Regulation of the gut microbiota
Isoflavones
class of phytoestrogen
plant-derived compounds with estrogenic activity.
Soybeans and soy products are the richest sources of isoflavones in the human diet
characteristics of isoflavons
major flavonoidsfound in legumes
Daidzein to equol
Equol, whichcomes from the metabolism of daidzein, is the compound derived from isoflavones with the greatest estrogenic activity