Scientists with ARS and Mississippi State University have found significant
amounts of resveratrol in the skin, pulp, and seeds of muscadine grapes.
Resveratrol is the compound in French wines said to lower cholesterol and the
risk of coronary heart disease.
In the Southeast, muscadines are grown to make juice. But the researchers
are now using muscadine waste from juice processing to make products like
muffins, jams and granola cereal. One-half serving (two ounces) of unfiltered
muscadine juice, one serving of muscadine jam, one medium muscadine muffin, or
one-tenth serving of muscadine sauce give the same dietary amounts of
resveratrol as four fluid ounces of red wine, the researchers say. Their report
is in the American Journal of Enology and Viticulture (vol. 47, pp.
Muscadine puree—an excellent source of resveratrol, dietary fiber and
some essential minerals—is high in carbohydrates and low in fat and
protein. Powdered puree contains more dietary fiber than oat or rice bran. In
MSU studies, rats fed the powder had lower LDL (bad) cholesterol and higher HDL
(good) levels than animals in the control group.