PhenolicCompounds and Antioxidant Activityof Local Cultivar of Apple (Malus domesticaBorkh) in East of Turkey

Apples, rich in phenolic compounds, are widely grown in abundance and consumed as fruit which reduces the risk of many illnesses. In this study, physico-chemical properties old apple cultivars from east of Turkey were investigated. Identification and quantification of phenolic compounds of freeze dried fresh apple varieties (fruit, pulp and peel) were analysed by using the HPLC method. Total phenolic content and antioxidant capacity of samples was also found in 25.00-11.63 mg GAE/g DW and 49.86-86.12 μmol TE/g DW. The highest antioxidant activity was identified in the peel of the Kara Sakı apple whereas the lowest was identified in the pulp of Ak Sakı. Varieties of apple differ significantly in terms of ferulic acid and hidroxycinnamic acid. (-)-Epicatechin was found in the peel of Kara Sakı apple at the very most and p-coumaric acid was found in the pulp of Kara Sakı at the very least. Hidroxycinnamic acid was identified only in the peel. It is approved to these cultivars show unique long shelf life (unusual for apples) without any storage condition due to the significantly presence of ferulic acid.

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