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Elemental composition of wheat, common buckwheat, and tartary buckwheat grains under conventional production
Orožen, Lea (Author), Vogel-Mikuš, Katarina (Author), Likar, Matevž (Author), Nečemer, Marijan (Author), Kump, Peter (Author), Regvar, Marjana (Author)

URLURL - Presentation file, Visit http://bijh-s.zrc-sazu.si/ABS/SI/ABS/Cont/55_2/ABS_55-2_Orozen%20et%20al%202012.pdf This link opens in a new window

Abstract
Žita in psevdožita so pomemben vir mineralnih elementov v prehrani določenih svetovnih populacij, zato je pomembno izboljšati elementno sestavo žit in zmanjšati vnos neželenih kovin v užitne dele rastlin. V raziskavi smo proučevali akumulacijo mineralnih elementov v zrnju pšenice (Triticum aestivum L.), navadne ajde (Fagopyrum esculentum Moench) in tatarske ajde (Fagopyrum tataricum (L.) Gaertn.) s polja s konvencionalno pridelavo. Elemente v tleh in zrnju smo analizirali z energijsko disperzijsko rentgensko fluorescenčno spektroskopijo, oziroma rentgensko fluorescenčno spektroskopijo s popolnim odbojem. Zrnje pšenice je imelo višje (p<0.05) koncentracije elementov od zrnja navadne in tatarske ajde. Vsebnosti mineralnih elementov v 100 g zrnja pšenice in ajde so bile višje od vsebnosti navedenih v literaturi za moko pšenice in ajde, kar kaže na izgubo elementov med postopki za pripravo moke. Zaskrbljujoče so visoke vsebnosti nekaterih nezaželenih kovin v pšenici in ajdi. Iz rezultatov je razvidno, da navadna in tatarska ajda v zrnju akumulirata manj nezaželenih kovin kot pšenica.

Language:English
Keywords:dietary reference intake, energy dispersive X-ray fluorescence spectrometry, metals, minerals, trace elements, total reflection X-ray fluorescence spectrometry
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:2012
Publisher:Društvo biologov Slovenije
Number of pages:str. 13-24
Numbering:Vol. 55, št. 2
UDC:581
ISSN on article:1408-3671
COBISS.SI-ID:2715471 Link is opened in a new window
Views:521
Downloads:238
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Record is a part of a journal

Title:Acta biologica slovenica
Shortened title:Acta biol. slov.
Publisher:Društvo biologov Slovenije
ISSN:1408-3671
COBISS.SI-ID:68526592 This link opens in a new window

Secondary language

Language:Slovenian
Title:Elemental composition of wheat, common buckwheat, and tartary buckwheat grains under conventional production
Abstract:
The elemental composition of cereal and pseudocereal grain is believed to significantly affect the portions of the minerals supplied for particular human populations. Therefore, care needs to be taken to improve the availability of the essential elements and to decrease unwanted metal accumulation in edible plant parts. In the present study, we have investigated the element accumulation in the grain of wheat (Triticum aestivum L.), common buckwheat (Fagopyrum esculentum Moench), and tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.), harvested from the same field under conventional grain production. Soil and grain element compositions were analysed using energy dispersive X-ray fluorescence spectrometry and total reflection X-ray fluorescence spectrometry. The wheat grain shows significantly higher (p<0.05) higher element concentrations than both of the buckwheat species tested. The contents of elements in 100 g grain were higher than the concentrations listed in the literature for wheat and buckwheat flours, which indicates significant losses of elements during milling and polishing. Concerns are raised due to the high and unwanted metal accumulation in wheat and buckwheat. The data indicate that both of these buckwheat species accumulate less metal contaminants when compared to wheat.

Keywords:energijska disperzijska rentgenska fluorescenčna spektroskopija, elementi v sledeh, kovine, minerali, prehranski referenčni vnosi za odrasle, rentgenska fluorescenčna spektroskopija s popolnim odbojem

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