Nanoencapsulation of synergistic combinations of acai berry concentrate to improve antioxidant stability.

The objectives of this study were to increase the antioxidant activity of acai berry concentrate (Acai) by combining it with various antioxidants to exploit synergistic effects and improve antioxidant stability by nanoencapsulation. Ascorbic acid and trolox were identified as synergistic antioxidants for Acai. The optimal mixing ratio of ascorbic acid (74.