Minerals and their bioavailability in relation to dietary fiber, phytates and tannins from gluten and gluten-free flakes

Justyna Kiewlicz , Iga Rybicka


Flakes are an assortment of grain products mainly consumed for breakfast. Most of them are important source of nutrients including minerals. Twenty commercial flakes from different raw materials were included in this study, both gluten (barley, rye, spelt, wheat) and gluten-free (amaranth, buckwheat, corn, quinoa, millet, oat, rice, teff). The content of minerals (Ca, Fe, K, Mg, Mn, Na and Zn), dietary fiber (total, soluble and insoluble), tannins and phytates was determined. Moreover, the phytates:mineral molar ratios and the percentage of the realization of mineral requirements were calculated. For the first time the mineral bioavailability from the gluten and gluten-free flakes was evaluated and compared. It allowed indicating amaranth and teff products as flakes with the highest impact on the realization of daily requirements for minerals, especially for magnesium and iron. This aspect is particularly important for people on a gluten-free diet who often represent mineral deficiencies.
Author Justyna Kiewlicz (WT / KTiAI)
Justyna Kiewlicz,,
- Department of Technology and Instrumental Analysis
, Iga Rybicka (WT / KTiAI)
Iga Rybicka,,
- Department of Technology and Instrumental Analysis
Journal seriesFood Chemistry, ISSN 0308-8146, e-ISSN 1873-7072, (N/A 200 pkt)
Issue year2020
Publication size in sheets0.5
Keywords in PolishBłonnik pokarmowy, Płatki, Bezglutenowy, Składniki mineralne, Kwas fitynowy, Taniny
Keywords in EnglishDietary fiber, Flake, Gluten-free, Mineral, Phytate, Tannin
ASJC Classification2700 General Medicine; 1106 Food Science; 1602 Analytical Chemistry
URL https://www.sciencedirect.com/science/article/pii/S0308814619315675?via%3Dihub
Languageen angielski
Score (nominal)200
Score sourcejournalList
ScoreMinisterial score = 200.0, 10-09-2020, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 2.17; WoS Impact Factor: 2018 = 5.399 (2) - 2018=5.488 (5)
Citation count*14 (2021-05-04)
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UwagiFirst online 03 September 2019
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