AGFD Alyson Mitchell  Sunday, March 27, 2011 

17 - Walnuts
combine superior phenolic antioxidant content and proven health benefits

Professor of Chemist Joe Vinson, Yuxing Cai Department of Chemistry, University of Scranton, Scranton, PA, United States

Treenuts (walnuts, pistachios, almonds, Brazil nuts,
pine nuts, cashews, macadamias, pecans, macadamias) contain nutrients including
vitamin E, minerals, MUFA and PUFA (specifically alpha-linoleic acid ALA). We measured free and total polyphenols by a
single step Folin assay. Walnuts ranked
first among nuts in phenolic antioxidant content. Walnuts were highest in PUFA and phytosterols. We also measured the quality of the
antioxidants based on our "heart disease in a test tube" model. Nuts were 4-15 times better than vitamin
E. Considering both quantity and quality of phenolic
antioxidants, walnuts were superior to other nuts. In human supplementation studies walnuts improved
endothelial function, lipid profiles, blood pressure, blood pressure under
stress, and antioxidant capacity without weight gain. Consumption of treenuts is associated with a
high quality diet with respect to health.
Nuts are under-consumed but furnish 8% of the polyphenols in the average
US diet with walnut #1 among the tree nuts.

Sunday, March 27, 2011 10:20 AM
Tree Nuts (08:30 AM - 11:25 AM)
Location: Anaheim Marriott
Room: Platinum IV


*ACS does not own copyrights to the individual abstracts. For permission, please contact the author(s) of the abstract.


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