Naslov
Macro -and trace elements content of wheat grains as related to grain protein

Autori
Vedrina-Dragojević, Irena ; Jenel, Marina ; Vitali, Dubravka ; Bujan, Marija

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

Izvornik
Cereals worldwide in the 21st century: present and future, Cerworld 21st, Book of abstracts / Poms, R. E. ; Collar, C. - Madrid : AETC-Spanish Association for Cereal Science and Technology, 2008, 183-183

ISBN
978-84-612-4517-8

Skup
13th ICC Cereal and Bread Congress

Mjesto i datum
Madrid, Španjolska, 15.06.2008. - 18.06.2008

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
macro- and trace elements; proteins; wheat grain genotypes; nitrogen feeding

Sažetak
The quality of wheat, as one of the major cereals, is very important in cereal-based products industry. Today people prefer cereal products of whole grain flour since it is well known that whole grain is a good source of antioxidans, dietary fiber, vitamins and particularly of macro- and trace elements. Therefore, the purpose of our study was to determine macro- and trace elements content in different wheat genotypes after additional nitrogen feeding, as well as their relationship with crude proteins in wheat corn. The investigation was carried out on five replicates of three wheat grain genotypes grown under the same topographical and different agrotechnical conditions (standard and additional nitrogen feeding) in the course of two consecutive vegetation years. Sodium, potassium, calcium, magnesium, iron, copper, zinc, manganese, nickel, cadmium and chromium concentrations after microwave digestion were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES), after microwave digestion of investigated samples. The protein content (N x 5.7) of the samples were assessed according to Kjeldahl method. Statistical analysis variance revealed that there were significant increase in the amount (mean values of five repetitions) of Ca, Mg ; Fe, Cu, Zn, Mn and Ni after additional feeding in all investigated genotypes in both year of growing. It is evident that, depending on cultivar and year of growing, the Ca content increased by 13.56 – 19.20 %, Mg by 4.61 – 6.58 %, Fe by 6.92 – 25.89 %, Cu by 3.12 – 17.11 %, Zn by 6.71 – 12.84 %, Mn by 11.82 – 26.31 and Ni by 16.00 – 22.22 %. The contents of Na and K decreased but only K has decreased significantly. Since the concentration levels of Cd and Cr were very low, there is no certain evidence that the additional nitrogen input had impact on the concentration levels of these two elements.The protein content increased for 22.29 – 40.04 %. Analyses of the results revealed a positive correlation between proteins and some of the researched macro- and trace elements. Genotype predisposition for higher biosynthesis of proteins and acumulation of some macro- and trace elements, which is dependant on climate factors, was also been established.

Izvorni jezik
Engleski

Znanstvena područja
Farmacija

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