Muscadine grape extracts are disclosed that have antioxidant properties. The extracts are a mixture of extracts from bronze and purple muscadine grapes that unexpectedly increase the solubility of ellagic acid in the mixture. Solvent extracts are obtained in some examples by water extracting the pomaces of the grapes from which the juice has substantially been removed. Further surprising increases in ellagic acid solubility can also be obtained by adding an additional source of anthocyanins to the extract, for example by including in the composition an extract of whole purple muscadine grapes from which substantial amounts of the juice have not been removed. Other additional sources of anthocyanins include blueberries, blackberries and raspberries； the additional source of anthocyanins can be obtained from a fruit processing waste stream to increase the efficiency of the production process.本發明揭示具有抗氧化特性之麝香葡萄萃取物。該等萃取物為來自青銅色及紫色麝香葡萄之萃取物之混合物，該混合物中土耳其鞣酸之溶解度出乎意料地增加。在一些實施例中，藉由對實質上已移除汁液之葡萄的果漿進行水萃取來獲得溶劑萃取物。此外，土耳其鞣酸溶解度之令人驚奇之增加亦可藉由將其他花青素來源添加至該萃取物中，例如藉由使組成物中包括尚未移除大量汁液之完整紫色麝香葡萄之萃取物來獲得。其他花青素來源包括藍莓、黑莓及樹莓；該其他花青素來源可自水果加工廢料流獲得以增加製造製程之效率。
