Phytate content and micronutrient bioavailability of cereal and pulse products available in Australian supermarkets

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dc.contributor.authorNguyen, T.D.
dc.contributor.authorWatts-Williams, S.J.
dc.date.issued2025
dc.description.abstractCereals and pulses are staple foods that provide substantial amounts of dietary protein and essential micronutrients, particularly zinc (Zn) and iron (Fe). The fortification of Zn and Fe in these products has been mandated in 94 countries, making them vital components of a nutritionally balanced diet. However, their bioavailability can be hindered by the anti-nutritional compound phytate. This analysis of cereals and pulses sourced from supermarkets in Adelaide, Australia assessed their phytate content and the bioavailability of Zn and Fe as well as their protein content to evaluate overall quality. Results indicated that pulse products, such as chickpea and lentil, are superior sources of protein and minerals, particularly of Zn and Fe, with higher micronutrient bioavailability compared to cereal products. A calculation based on this survey, 280 g of dried chickpea or lentil provides 100 % of the daily Zn intake for women and 57.22 % for men. Phytate content and phosphorus nutrition were highly correlated in whole grain products such as brown rice and wheat. In addition, Zn and Fe concentrations in cereal products like wheat and oat flour were lower than other products, suggesting that they may not meet the fortification targets recommended by Food Standards Australia New Zealand.
dc.description.statementofresponsibilityThi Diem Nguyen, Stephanie J. Watts-Williams
dc.identifier.citationJournal of Food Composition and Analysis, 2025; 143:107165-1-107165-7
dc.identifier.doi10.1016/j.jfca.2024.107165
dc.identifier.issn0889-1575
dc.identifier.issn1096-0481
dc.identifier.orcidNguyen, T.D. [0000-0002-5035-4793]
dc.identifier.orcidWatts-Williams, S.J. [0000-0003-3467-0662]
dc.identifier.urihttps://hdl.handle.net/2440/147329
dc.language.isoen
dc.publisherElsevier
dc.relation.granthttp://purl.org/au-research/grants/arc/DE210100908
dc.rights© 2024 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
dc.source.urihttps://doi.org/10.1016/j.jfca.2024.107165
dc.subjectcereals; flour products; micronutrient bioavailability; phytate; protein; pulses
dc.titlePhytate content and micronutrient bioavailability of cereal and pulse products available in Australian supermarkets
dc.typeJournal article
pubs.publication-statusPublished

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