Antioxidants and Health-Beneficial Nutrients in Fruits of Eighteen Cucurbita Cultivars: Analysis of Diversity and Dietary Implications

Anna Kostecka-Gugała , Michał Kruczek , Iwona Ledwożyw-Smoleń , Paweł Kaszycki

Abstract

Aging is accompanied by gradual accumulation of molecular damage within cells in response to oxidative stress resulting from adverse environmental factors, inappropriate lifestyle, and numerous diseases. Adequate antioxidant intake is a key factor of proper diet. The study aimed to assess the antioxidant/antiradical capacities of Cucurbita fruits (18 cultivars of the species: C. maxima Duch., C. moschata Duch., C. pepo L., and C. ficifolia Bouché) grown in central Europe. The analyses were based on the FRAP (ferric reducing antioxidant power), CUPRAC (cupric ion reducing antioxidant capacity), and DPPH (2,2-diphenyl-1-picrylhydrazyl radical) assays. The content of phenolic compounds and β-carotene was evaluated with HPLC (high performance liquid chromatography), while the main macro- and micronutrients by ICP-OES (inductively coupled plasma mass spectrometry). The results revealed high intraspecies variability within the Cucurbita genus. The Japanese ‘Kogigu’ fruits were distinguished as extraordinary sources of phenolic compounds, including syringic and protocatechuic acids, catechin, and kaempferol. Another popular cultivar ‘Hokkaido’ exhibited the highest antioxidant and antiradical capacities. Most of the fruits proved to be rich sources of zinc and copper. The obtained data are discussed in the context of optimized nutrition of the elderly and suggest that Cucurbita fruits should become daily components of their diet.
Author Anna Kostecka-Gugała (FoBaH / Department of Plant Biology and Biotechnology)
Anna Kostecka-Gugała,,
- Department of Plant Biology and Biotechnology
, Michał Kruczek (FoBaH / Department of Plant Biology and Biotechnology)
Michał Kruczek,,
- Department of Plant Biology and Biotechnology
, Iwona Ledwożyw-Smoleń (FoBaH / Department of Plant Biology and Biotechnology)
Iwona Ledwożyw-Smoleń,,
- Department of Plant Biology and Biotechnology
, Paweł Kaszycki (FoBaH / Department of Plant Biology and Biotechnology)
Paweł Kaszycki,,
- Department of Plant Biology and Biotechnology
Journal seriesMolecules, ISSN 1420-3049, (N/A 100 pkt)
Issue year2020
Vol25
No8
Pages1-20
Publication size in sheets0.95
Article number1792
Keywords in Englishpumpkin; squash; Cucurbitaceae; polyphenols; carotenoids; micronutrients; bioactive compounds; antiradical capacity; functional food; aging
ASJC Classification1605 Organic Chemistry
DOIDOI:10.3390/molecules25081792
URL https://www.mdpi.com/1420-3049/25/8/1792/pdf
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa (CC-BY); after publication
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Antioxidants and Health-Beneficial Nutrients in Fruits of Eighteen Cucurbita Cultivars: Analysis of Diversity and Dietary Implications of 17-07-2020
952,34 KB
Score (nominal)100
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.146; WoS Impact Factor: 2018 = 3.06 (2) - 2018=3.38 (5)
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FinansowanieThe research at the University of Agriculture in Krakow was subvented by the Polish Ministry of Science and Higher Education in 2020.
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