Change in phenolic and antioxidant capacity of beans (var. Aura.) effected by Kelpak SL application. C, control; SS 0.2%, single spraying by 0.2% solution of Kelpak SL; DS 0.2%, double spraying by 0.2% solution of Kelpak SL; SS 0.4%, single spraying by 0.4% solution of Kelpak SL; DS 0.4%, double spraying by 0.4% solution of Kelpak SL. TPC, total phenols; TFC, total flavonoids; TAC, total anthocyanins; ABTS, antiradical activity; RP, reducing power. Means (n = 18) in the columns followed by different small letters are significantly different at p < 0.05.