4.7 Article

Biofortification of common buckwheat microgreens and seeds with different forms of selenium and iodine

Journal

JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
Volume 99, Issue 9, Pages 4353-4362

Publisher

WILEY
DOI: 10.1002/jsfa.9669

Keywords

biofortification; common buckwheat; iodine; physiological parameters; pigments; selenium

Funding

  1. Slovenian Research Agency, Slovenia [J4-5524, L4-7552, P1-0212, P4-0085, P4-0013, PR-05562, PR-06178]

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BACKGROUNDThe biofortification of crops can counteract human diseases, including selenium (Se) and iodine (I) deficiencies in the diet. Little is known about the effects of combinations of Se and I on microgreens and seeds, or on their accumulation in these tissues. The present study aimed to evaluate Se (SeO32-, SeO42-) and I (I-, IO3-) biofortification of common buckwheat microgreens and seeds with respect to the effects of the addition of Se, I and Se+I on yield and on physiological and biochemical characteristics. RESULTSIn combination treatments, microgreens yield (600-800gm(-2)) was 50-70% higher than for Se and I alone. The respiratory potential also increased by 60-120%. F-v/F-m was close to 0.8 in all samples. Se content [0.24 mu gg(-1) dry weight (DW)] was 50% higher for combination treatments than for Se and I alone. I content was highest for IO3- treatment (216 mu gg(-1) DW) and decreased in combination treatments with Se by 50%. CONCLUSIONBiofortification of buckwheat microgreens with Se and I should be performed with care because there are synergistic and antagonistic effects of these elements with respect to their accumulation. IO3- for the biofortification of microgreens should be kept low to prevent exceeding the recommended daily intake of I. (c) 2019 Society of Chemical Industry

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