Naslov
The potential of barley for biofortification

Autori
Lončarić, Zdenko ; Rebekić, Andrijana ; Šimić, Gordana ; Abičić, Ivan ; Kerovec, Darko ; Alojzije Lalić

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
10th International Congress "Flour-Bread '19" 12th Croatian Congress of Cereal Technologists "Brašno- Kruh '19". Book of Abstracts. / Jozinović, Antun ; Budžaki, Sandra ; Strelec, Ivica ; Lončarić, Ante - Osijek : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2019, 52-52

Skup
10th International Congress Flour – Bread ’19 ; 12th Croatian Congress of Cereal Technologists Brašno – Kruh ’19

Mjesto i datum
Osijek, Hrvatska, 11.06.2019. - 14.06.2019

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
zinc ; selenium ; malnutrition ; protein ; flour

Sažetak
More than 2 billion people are exposed to malnutrition, with lack of zinc being a general problem and lack of selenium regional problem. Therefore, 36 barley genotypes were grown in the filed experiment with biofortification by 5 or 10 g/ha of foliar applied selenium. The average protein concentration in whole grain flour without selenium application was 9, 14 % (range 7, 95 - 10, 05 %) and zinc concentration was 16, 71 to 21, 90 mg/kg (19, 17 in average). Analysed genotypes differ significantly in zinc concentrations, irrespective of the selenium application. Also, the genotypes differed significantly in terms of protein content and selenium concentrations, and the highest variability was determined after biofortification with higher dose of selenium. Selenium concentration in barley grains without Se application was very low, just 45 µg/kg in average, but foliar application of 5 and 10 g/ha Se significantly increased Se in grain to 178 and 299 µg/kg in average, what is 4 and 6, 6 times higher Se concentrations. Also, there were significant differences in genotypes in increasing Se concentrations, from 177 to 511 µg/kg after application higher Se dose. At the same time, biofortification with selenium did not affect zinc concentration, but it had a very significant effect on the protein, with the lowest protein content in control treatment without selenium. Considering average Se concentrations in whole grain barley flour, for intake 55 µg Se as a mean daily recommendation 1, 22 kg of regular flour would be needed, but just 309 or 184 g of flour biofortified with lower or higher Se dose. These fact and specificity of barley genotypes indicate high potential of barley for biofortification.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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