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. 2021 Jan 14;10(1):164.
doi: 10.3390/foods10010164.

Comparative Study of Early- and Mid-Ripening Peach (Prunus persica L.) Varieties: Biological Activity, Macro-, and Micro- Nutrient Profile

Dasha Mihaylova  1 , Aneta Popova  2 , Ivelina Desseva  3 , Nadezhda Petkova  4 , Magdalena Stoyanova  3 , Radka Vrancheva  3 , Anton Slavov  4 , Alexandar Slavchev  5 , Anna Lante  6
Affiliations

Comparative Study of Early- and Mid-Ripening Peach (Prunus persica L.) Varieties: Biological Activity, Macro-, and Micro- Nutrient Profile

Dasha Mihaylova et al. Foods. .

Abstract

Exploring the chemical composition and biological activity of different fruit varieties is essential for the valorization of their health claims. The current study focuses on a detailed comparative analysis of three early- and two mid-ripening peach varieties: "Filina" (peach), "July Lady" (peach), "Laskava" (peach), "Gergana" (nectarine), and "Ufo 4" (flat peach). They were characterized in terms of essential nutrients such as carbohydrates (sugars and dietary fibers), amino acid content, and lipids as well as mineral content, fat-soluble vitamins, carotenoids, and chlorophyll. Polyphenolic compounds and the related antioxidant activity were also assessed. The methanolic extract of the peel seems to be richer in the studied biologically active substances compared to the fleshy part of the fruit. Anthocyanins were most abundant in "Gergana" and "July Lady" extracts (6624.8 ± 404.9 and 7133.6 ± 388.8 µg cyanidin-3-glucoside/100 g fw, resp.). The total phenol content of the samples varied from 34.11 ± 0.54 to 157.97 ± 0.67 mg gallic acid equivalents (GAE)/100 g fw. "Filina" and "July Lady" varieties possessed the highest antioxidant activity. Overall, the results of this study confirm that the studied peach varieties have satisfactory nutritional value and are potential sources of biologically active substances. Each variety represents an individual palette of nutrients that should be considered separately from the other.

Keywords: biological activity; macro- and micro-nutrient profile; nectarine; peach; phytochemicals.

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Conflict of interest statement

The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.

Figures

Figure 1
Figure 1
Early- and mid-ripening peach (Prunus persica L.) varieties: (A) “Gergana”, (B) “Filina”, (C) “Ufo 4”, (D) “July Lady”, (E) “Laskava”.
Figure 2
Figure 2
Scores and loading plots of principal components 1 and 2 of the principal component analysis (PCA) results obtained from phytochemical compounds and antioxidant activities in different extracts of peach varieties—(A)—score plat and (B)—loading plot.
See this image and copyright information in PMC

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