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Plants as a Source of Functional Food Ingredients to Improve Human Nutrition

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Nutraceuticals, Functional Foods, and Novel Foods".

Deadline for manuscript submissions: closed (20 March 2026) | Viewed by 2191

Special Issue Editors


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Guest Editor
Department of Biochemistry and Food Chemistry, University of Life Sciences, Lublin, Poland
Interests: bioactive compounds; biological activity; pre- and post-harvest treatments; plant food quality; food technology
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Biochemistry and Food Chemistry, The University of Life Sciences, Skromna 8 St., 20-704 Lublin, Poland
Interests: food compounds; peptides; antioxidant properties; food technology, enzyme inhibitory; metabolic syndrome
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Biochemistry and Food Chemistry, University of Life Sciences, Lublin, Poland
Interests: functional foods; interactions, phenolic compounds; antioxidants
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plant-based foods contain nutrients and are a rich source of bioactive compounds that can affect human health. Plant compounds with particularly beneficial effects on human health include dietary fiber, polyphenols, carotenoids, glucosinolates, peptides, vitamins, and minerals, and they may exhibit many properties such as antioxidant, anti-cancer, anti-microbial, or enzyme or hormone regulatory properties. Their use in producing functional foods allows for creating innovative products supporting the prevention of some diseases such as cardiovascular diseases, cancer, type 2 diabetes, and neurodegenerative diseases. Plant-based foods are also the basis of many diets that support the treatment of diseases that are not only diet-related. New or common plant ingredients may also be used to produce supplementary diets or functional foods. Studies on the impacts of plant products on human nutrition and health, as well as those connected to the use of valuable plant ingredients to enrich food, are covered by the scope of this Special Issue.

Dr. Urszula Złotek
Dr. Anna Jakubczyk
Prof. Dr. Urszula Gawlik
Guest Editors

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Keywords

  • plant food
  • bioactive compounds
  • functional food
  • pro-health properties

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Published Papers (1 paper)

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Research

18 pages, 345 KB  
Article
Biological Properties, Mineral Composition, and Health-Promoting Potential of Tiger Nut Tubers (Cyperus esculentus L.) as a Novel and Underutilized Food Source
by Zuzana Knazicka, Tunde Jurikova, Eva Kovacikova, Katarina Fatrcova-Sramkova, Vladimira Bella, Branislav Galik, Klaudia Tomasova, Liliana Hnatova, Ivona Janco, Dominika Lenicka, Martyna Błaszczyk-Altman, Eva Ivanisova, Sona Skrovankova, Martin Prcik and Jiri Mlcek
Foods 2026, 15(2), 191; https://doi.org/10.3390/foods15020191 - 6 Jan 2026
Viewed by 1203
Abstract
Tiger nut (Cyperus esculentus L.) is a relatively neglected tuber crop with notable nutritional, functional, and ecological value. The primary objective of this study was to evaluate the biological properties and selected nutritional parameters of tiger nut tubers and oil, including antioxidant [...] Read more.
Tiger nut (Cyperus esculentus L.) is a relatively neglected tuber crop with notable nutritional, functional, and ecological value. The primary objective of this study was to evaluate the biological properties and selected nutritional parameters of tiger nut tubers and oil, including antioxidant activity, total phenolic content (TPC), fatty acid (FA) profile, health-related lipid indices, and mineral composition. Methods: Natural and peeled tiger nut tubers, as well as commercially available tiger nut oil (yellow variety, Valencia, Spain), were analyzed. Antioxidant activity was measured spectrophotometrically using the DPPH method. The content of TPC was determined using the Folin–Ciocalteu assay. Fatty acid composition was analyzed by gas chromatography coupled with flame ionization detection, and these data were used to calculate the PUFA/SFA (P/S) ratio, atherogenicity (AI), thrombogenicity (TI) index, and hypocholesterolemic/hypercholesterolemic (h/H) ratio. Macro- and microelement contents were quantified using inductively coupled plasma optical emission spectrometry. Estimated daily intake (EDI), target hazard quotient (THQ), and total THQ (TTHQ) were calculated to assess potential health risks. Results: Natural tiger nut tubers exhibited substantially higher antioxidant activity and TPC compared to peeled tubers, suggesting that the peel is the primary reservoir of phenolic compounds. Strong antioxidant activity was observed in tiger nut oil (64.82 ± 2.59 mg TEAC/L). Oleic acid (C18:1cis n-9) was identified as the predominant FA across all samples, thus contributing positively to favorable health lipid indices (P/S > 0.50, low AI and TI, high h/H ratio). Potassium was the most abundant macroelement in natural and peeled tiger nut tubers. The overall trend of microelement levels in these samples was as follows: Al > Fe > Zn > Cu > Sr > Mn > Li > Ba > Se > As > Cr. All THQ and TTHQ values were below 1, indicating no appreciable health risk associated with consumption. Conclusions: These findings support the use of tiger nuts as a functionally valuable ingredient in health-oriented food products. Full article
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