Differentiation of roasted and soluble coffees through physical fractionation of selected essential and nonessential metals in their brews and exploratory data analysis

An analytical scheme for physical fractionation of Al, Ba, Ca, Co, Fe, K, Mg, Mn, Na, Ni, Sr and Zn in ground roasted and soluble coffees brews was proposed. It was based on ultrafiltration through five ultrafiltration membranes having molecular weight cut-offs of 5, 10, 30, 50 and 100kDa. The highe...

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Bibliographic Details
Published in:Talanta (Oxford) 2016-11, Vol.160, p.686-693
Main Authors: Pohl, Pawel, Szymczycha-Madeja, Anna, Stelmach, Ewelina, Welna, Maja
Format: Article
Language:English
Subjects:
Brews
Ground coffee
Metals
Physical fractionation
Soluble coffee
Ultrafiltration
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Summary:An analytical scheme for physical fractionation of Al, Ba, Ca, Co, Fe, K, Mg, Mn, Na, Ni, Sr and Zn in ground roasted and soluble coffees brews was proposed. It was based on ultrafiltration through five ultrafiltration membranes having molecular weight cut-offs of 5, 10, 30, 50 and 100kDa. The highest “>100kDa” and the lowest “100kDa” fraction, while Co, K, Mg and Na – with the “100kDa” and “100 k Da” and “100 k Da” and “
ISSN:0039-9140
1873-3573
DOI:10.1016/j.talanta.2016.08.020