Comparison of phenolics, antioxidant capacity and total phenol bioaccessibility of Ribes spp. grown in Turkey
2020
KARAAGAC, Hacer Eksi(Bursa Uludag University Graduate School of Natural and Applied Sciences) | ŞAHAN, Yasemin
Abstract In this study, anthocyanins (13), flavanols (6), phenolic acids (10), flavonol glycosides (17), antioxidant capacity, and bioaccessible phenolic content of Ribes spp., grown in Turkey were investigated. Individual phenolic compounds were identified and quantified with LC-QTOF/MS in red and black currants and hybrid Jostaberry. Significant variations in the individual phenolic compounds could be observed between the different cultivars. In all black currant cultivars, cyanidin 3,5-di-O-glucoside was the predominant anthocyanin compounds (p ≤ 0.01). Cyanidin 3-O-sambubioside and cyanidin 3-O-rutinoside were detected in red currants. In all Ribes cultivars quercetin 3-O-rutinoside was the major flavonol glycoside and epigallocatechin found as the dominant flavonol compound. Rosenthal had the highest amount of total phenols, antioxidant capacity levels by DPPH and CUPRAC. Boskoop Giant characterized with the highest amount of total anthocyanin and bioaccessibility of phenolic compounds (84.27%).
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