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Phytochemical Content and Antioxidant Activity of Malus domestica Borkh Peel Extracts

Authors :
Melnic Vasile
Andrea Bunea
Chira Romeo Ioan
Bunea Claudiu Ioan
Sonia Socaci
Mitre Viorel
Source :
Molecules; Volume 26; Issue 24; Pages: 7636, Molecules, Vol 26, Iss 7636, p 7636 (2021)
Publication Year :
2021
Publisher :
MDPI AG, 2021.

Abstract

Apple is an important dietary source of carotenoids and phenolic compounds, and its regular consumption is associated with several health benefits. The aim of this study was to evaluate the phytochemical composition of fresh peels of four red-skinned (“Champion”, “Generos”, “Idared”, “Florina”) and two yellow-skinned (“Golden Delicious”, “Reinette Simirenko”) apple varieties. Antioxidant activity of apple peel extracts was determined by ferric reducing antioxidant power (FRAP) and ABTS radical scavenging capacity assays. Total carotenoid and polyphenolic contents were determined spectrophotometrically, while the profile of individual carotenoids and anthocyanins (in red-skinned varieties) was analyzed using high-performance liquid chromatography coupled to a photodiode array detector (HPLC-PDA). Carotenoid composition was specific for each variety, and total carotenoid content was slightly higher in yellow-skinned apple peels compared to red-skinned varieties. In contrast, total phenolic content was higher in the peels of red-skinned cultivars. Anthocyanin profile was predominated by cyanidin-3-O-galactoside. Antioxidant potential followed the trend of the total polyphenolic content, being highest in “Florina”, as measured by both FRAP and ABTS assays. Our results demonstrated apple peels have high phytochemical content with diverse compositions, and their regular consumption can be an excellent source of antioxidants.

Details

ISSN :
14203049
Volume :
26
Database :
OpenAIRE
Journal :
Molecules
Accession number :
edsair.doi.dedup.....2c8e944b2b6cbff9e58d4b5109eeecdd
Full Text :
https://doi.org/10.3390/molecules26247636