Model studies on the influence of coffee melanoidins on flavor volatiles of coffee beverages

Thomas Hofmann, Michael Czerny, Sonia Calligaris, Peter Schieberle*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    107 Scopus citations

    Abstract

    Addition of the total melanoidin fraction isolated by water extraction from medium-roasted coffee powder to a model solution containing a set of 25 aroma compounds mimicking the aroma of a coffee brew reduced, in particular, the intensity of the roasty, sulfury aroma quality. Model studies performed by static headspace analysis revealed that especially three well-known coffee odorants, that is, 2-furfurylthiol (FFT), 3-methyl-2-butene-1-thiol, and 3-mercapto-3-methylbutyl formate, were significantly reduced in the headspace above an aqueous model solution when melanoidins were added. In particular, the low molecular weight melanoidins (1500-3000 Da) led to the most significant decrease in FFT. In contrast, for example, aldehydes remained unaffected by melanoidin addition.

    Original languageEnglish
    Pages (from-to)2382-2386
    Number of pages5
    JournalJournal of Agricultural and Food Chemistry
    Volume49
    Issue number5
    DOIs
    StatePublished - 2001

    Keywords

    • 2-Furfurylthiol
    • Coffee flavor
    • Flavor binding
    • Melanoidins

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