Curcumin antifungal and antioxidant activities are increased in the presence of ascorbic acid

► Curcumin and ascorbic acid were associated. ► Antifungal activity of isolated and associated compounds was analysed. ► Antioxidant activity of isolated and associated compounds was analysed. ► The association with ascorbic acid decreased the curcumin MIC. ► Antioxidant activity of curcumin was increased by ascorbic acid.