Naslov
Trace element analysis of walnuts and walnut oils by inductively coupled plasma atomic emission spectroscopy and inductively coupled plasma mass spectroscopy.

Autori
Zeiner, Michaela ; Juranović Cindrić, Iva ; Stingeder, Gerhard.

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

Izvornik
Book of Abstracts / - Innsbruck : GÖCH, 2015, OP37-OP37

ISBN
978-3-900554-74-3

Skup
16. Österreichische Chemietage

Mjesto i datum
Innsbruck, Austrija, 21.09.2015. - 24.09.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Trace element ; walnut ; walnut oil ; ICP-AES ; ICP-MS

Sažetak
Inductively coupled plasma atomic emission spectrometry and Inductively coupled plasma mass spectrometry were used for the determination of the elemental composition (As, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Se, Sr and Zn) of walnuts. In the present study selected major and minor elements are determined in dried and homogenised walnuts after digesting in a closed microwave assisted digestion system using nitric acid and hydrogen peroxide. The minerals Ca, K and Mg are present in the walnuts at mg/g level, whereas the other elements (essential and non essential) are present in µg/g level. Considering major and minor essential elements walnuts are a good dietary source of essential metals in addition to the organic compound contained. Apart from the beneficial content of essential elements, the obtained results show that the potentially toxic trace elements are present in the walnuts samples below the maximum allowed values. Comparing oils and nuts element content higher amounts of elements are found in walnuts than in oils (except for Fe and Zn) showing that they are bound to proteins and not part of oily part.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA