Concord Grapes and Cardiovascular Health
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چکیده
A study by Freedman et al. in 2001 (Circulation) investigated 20 healthy adults who drank Welch’s Purple Grape Juice (7 mL/kg/d) for 14 days. Compared to baseline, after two weeks of juice consumption, platelet aggregation (clotting) was inhibited and superoxide (a free radical) release was decreased. In addition, drinking grape juice stimulated the production of nitric oxide by platelets – which promotes arterial relaxation and allows them to support healthy blood flow. While there was no significant change in the level of certain antioxidants within the plasma, an ORAC assay showed a significant increase in total plasma antioxidant capacity. 5 See below for more on Concord grape juice’s impact on antioxidant activity and platelet aggregation.
منابع مشابه
A Comparison of Total Antioxidant Capacities of Concord, Purple, Red, and Green Grapes Using the CUPRAC Assay
Considering how popular grapes are in terms of their antioxidant benefits, we compared concord, purple, red, and green grapes for total antioxidant capacity (TAC) and carbohydrate concentration. All grapes were acquired from commercial sources and samples of each were separated into skinned and not skinned groups. Each whole grape and the skins were individually homogenized and then separated i...
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