Class Notes (808,754)
Canada (493,378)
Nutrition (877)
NUTR 3330 (14)


2 Pages
Unlock Document

University of Guelph
NUTR 3330
Alison Duncan

POLYPHENOLS WHAT ARE THEY? - one of the most numerous and ubiquitous (everywhere) groups of plant metabolites o ubiquitous in all plant organs; thus integral part of the human diet - range from simple phenolic molecules (e.g. simple phenols) to highly polymerized compounds (e.g. tannins) - traditionally considered anti-nutrients o due to effects of specific polyphenols to bind macromolecules and reduce food digestibility - Renewed interest due: o anti-oxidant capacities o numerous potential beneficial human health effects PLANT POLYPHENOLS STRUCTURE - secondary metabolites of plants - >8,000 phenolic structures known - commom structural feature: o aromatic ring with at least one hydroxyl group - synthesized from two major pathways: o (1) Shikimate pathway o (2) Acetate pathway o extremely wide and complex group of plant substances FUNCTION - essential to plant physiology - contribute to plant morphology o pigmentation - involved in growth and reproduction of the plant - provide plants with resistance to pathogens and predators - protect crops from plague and pre-harvest seed germination - several industrial applications What influences amount in plants? - Light o highest concentration in leaves and outer parts of plants o only trace amounts found in subterranean parts - Gene
More Less

Related notes for NUTR 3330

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.