Dynamics of 5-hydroxymethylfurfural formation in shortbreads during thermal processing
S. Kowalski, M. Lukasiewicz, L. Juszczak, E.M. Kutyła-Kupidurahttps://doi.org/10.17221/87/2012-CJFSCitation:Kowalski S., Lukasiewicz M., Juszczak L., Kutyła-Kupidura E.M. (2013): Dynamics of 5-hydroxymethylfurfural formation in shortbreads during thermal processing. Czech J. Food Sci., 31: 33-42.
The analysis was carried out of 5-hydroxymethyl-2-furfural (HMF) formation during the baking of shortbreads. The investigation was done on three types of shortbread in which sucrose, glucose, or fructose were used as sweeteners. In all the samples the concentration of sugar was 20% (w/w). The cookies were baked in a laboratory oven at temperatures of 200, 215, 230, and 245°C. The samples for the HMF determination were taken at intervals from 5 to 18 min depending on the baking temperature. It was found that HMF formation can be described by exponential equation. The HMF formation was correlated with the colour changes of the cakes determined according to CIELab system. Different parameters of colour were investigated, however, only in the case of brightness difference may the correlation be treated as statistically important.Keywords:
HMF; sweeteners; cookies; colour changes