Proximate Composition, Minerals and Antioxidant Activity of Artichoke Leaf Extracts

Wioletta Biel , Robert Witkowicz , Ewa Piątkowska , Cezary Podsiadło

Abstract

In this study, leaf extracts from the Green Globe cultivar of artichoke (Cynara scolymus L.), a herbaceous plant of the Asteraceae family, were analyzed to determine the levels of basic nutrients, selected macroelements (K, P, Ca, Mg, and Na) and microelements (Zn, Fe, Mn, Cr, Pb, Cd, and Ni), and their ratios. The antioxidant activity (aa) of the extract was evaluated using ABTS˙ + and DPPH˙ + radicals and the ferric reducing antioxidant power assay (III) (FRAP). Total polyphenolic content was also determined. Macroelement concentrations in the artichoke leaf extract can be presented in descending order as follows: K > P > Ca > Mg > Na. Microelement content in the extract was as follows: Zn > Fe > Cr > Mn. We determined the ratios of elements in artichoke leaf extracts and compared them against the recommended dietary allowance, adequate intake, or tolerable upper intake level. Mean total phenolic content in artichoke leaf extracts was high – 2795 mg CAE/100 g dry matter (DM). The ABTS˙ + assay showed a very high ability of artichoke extract to scavenge free radicals (79.74%), and the antioxidant capacity measured at 1060.8 Trolox/1 g DM. The results show that artichoke extract is a valuable source of minerals and antioxidants that could have applications in the prevention of chronic non-communicable diseases caused by oxidative damage.
Author Wioletta Biel
Wioletta Biel,,
-
, Robert Witkowicz (FoAaE / DoAaPP)
Robert Witkowicz,,
- Department of Agroecology and Plant Production
, Ewa Piątkowska (FoFT / DoHN)
Ewa Piątkowska,,
- Department of Human Nutrition
, Cezary Podsiadło
Cezary Podsiadło,,
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Journal seriesBiological Trace Element Research, ISSN 0163-4984, e-ISSN 1559-0720, (N/A 70 pkt)
Issue year2020
Vol194
No2
Pages589-595
Publication size in sheets0.5
Keywords in EnglishCynara scolymus, Leaf extracts, Element ratios, Total phenolic content, Antioxidant activity
ASJC Classification2700 General Medicine; 2704 Biochemistry, medical; 2712 Endocrinology, Diabetes and Metabolism; 1303 Biochemistry; 1308 Clinical Biochemistry; 1604 Inorganic Chemistry
DOIDOI:10.1007/s12011-019-01806-3
URL https://link.springer.com/article/10.1007%2Fs12011-019-01806-3
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); with publication
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Proximate Composition, Minerals and Antioxidant Activity of Artichoke Leaf Extracts of 19-02-2020
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Score (nominal)70
Score sourcejournalList
Publication indicators WoS Citations = 2; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.882; WoS Impact Factor: 2018 = 2.431 (2) - 2018=2.406 (5)
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Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http:// creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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