Abstract：
:This paper presents parallel factor analysis (PARAFAC) of fluorescence of cereal flours. Excitation-emission matrices (EEM's) of different cereal flours (wheat, corn, rye, rice, oat, spelt, barley and buckwheat) were measured in a front-face configuration over the ultraviolet-visible spectral range. EEM's showed that flours strongly fluoresce in two spectral regions, where amino acids, tocopherols, pyridoxine and 4-aminobenzoic acid show intense emissions. 4-component PARAFAC was used to model flour fluorescence and to decompose EEM's into excitation and emission spectra of each component. PARAFAC also provided relative concentrations of these components. The largest differences between flours were found in the concentration levels of the first and third component. Finally, variations in concentrations of PARAFAC modelled components were analysed in relation to the botanical origin of flour samples.
journal_name
Food Chemjournal_title
Food chemistryauthors
Lenhardt L,Zeković I,Dramićanin T,Milićević B,Burojević J,Dramićanin MDdoi
10.1016/j.foodchem.2017.02.070subject
Has Abstractpub_date
2017-08-15 00:00:00pages
165-171eissn
0308-8146issn
1873-7072pii
S0308-8146(17)30270-4journal_volume
229pub_type
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