Phenolics from purple grape juice increase serum antioxidant status and improve lipid profile and blood pressure in healthy adults under intense physical training

• Published in: Journal of functional foods Vol. 33; pp. 419 - 424
• Main Authors: Toscano, Lydiane Tavares, Silva, Alexandre Sérgio, Toscano, Luciana Tavares, Tavares, Renata Leite, Biasoto, Aline Camarão Telles, de Camargo, Adriano Costa, da Silva, Cássia Surama Oliveira, Gonçalves, Maria da Conceição Rodrigues, Shahidi, Fereidoon
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-06-2017; Elsevier
• Subjects: Atherosclerosis; Cardiovascular disease; Functional beverage; Human trial; Plasma antioxidant status; Polyphenols; Functional beverage; Polyphenols; Cardiovascular disease; Human trial; Plasma antioxidant status; Atherosclerosis
• ISSN: 1756-4646; 2214-9414
• DOI: 10.1016/j.jff.2017.03.063

•The effects of grape juice consumption in individuals under intense exercise were studied.•Catechin, isoquercetin, and procyanidin B1 were the major compounds in grape juice.•Plasma antioxidant activity and HDL-cholesterol increased after grape juice intake.•LDL-cholesterol and systolic blood pressure decreased after grape juice consumption.•Grape juice consumption may render additional benefits for healthy adults who exercise regularly.
Phenolic compounds have generated considerable interest in the scientific community and the media. Much of this interest is due to the properties ascribed to several phenolic compounds for prevention of cancer, dyslipidemia, and obesity. Grape juice made from cultivars Isabel, Bordeaux and Concord, was characterized in this work. Subsequently, twenty-eight healthy adults were randomly assigned to a group that consumed grape juice (GJG=15; 25–54years old) and a group that consumed a control beverage (CG=13; 20–53years old). The groups were evaluated for their nutritional status, blood pressure, and blood collection for analysis of total antioxidant capacity, nitrite, glucose and lipid profile, upon receiving supplementation (10m/kg/day) for 28days and reevaluated at the end. The results suggest that purple grape juice had a great potential as an antioxidant source in improving antioxidant status and cardiometabolic profile of healthy adults under intense physical exercise.