Spectrophotometric determination of morin in strawberries and their antioxidant activity

Morin is one of the flavonoids with intensive antioxidant activity. With aim to use its benefits on human health, there an increasing trend pay attention content in food or supplements. The simplicity and low cost spectrophotometric determination based formation a morin complex Zn 2+ ion (stoichiometric ratio 1 : 1), at pH 7.98 392 nm, give it advantage over other methods that can be used for quantification. concentration range which response was linear 0.151-4.533 mg L-1. limit detection (LOD) quantification (LOQ) were 0.030 L-1 0.091 , respectively. developed method successfully applied strawberries. Additionally, antioxidative abilities strawberry extracts morin, determined by DPPH FRAP tests, compared discussed.