A comparison of color formation and Maillard reaction products of a lactose-lysine and lactose-N(α)-acetyllysine model system(699 views) Monti SM, Borrelli RC, Ritieni A, Fogliano V
Keywords: Antioxidative Efficiency, Color, Lactose, Lc-Ms, Maillard Reaction, Melanoidins, N(α)-Acetyllysine, Drug Derivative, N(alpha)-Acetyllysine, Article, Carbohydrate Analysis, Chemical Analysis, Chemical Reaction, Chemistry, Comparative Study, Glycation, High Performance Liquid Chromatography, Mass Spectrometry, Molecular Weight, Antioxidants, High Pressure Liquid, N ()-Acetyllysine, N (alpha)-Acetyllysine,
Affiliations: Dipartimento di Scienza degli Alimenti, Università di Napoli Federico II, Parco Gussone, 80055 Portici, Napoli, Italy
References: Not available.
A comparison of color formation and Maillard reaction products of a lactose-lysine and lactose-N(α)-acetyllysine model system
The formation of color and Maillard reaction products in two model systems consisting of lactose and lysine or N(α)-acetyllysine has been investigated. During heating, the blockage of the N(α) group of lysine determined a faster color and antioxidative ability development compared to the system with free lysine. This is combined to a greater amount of melanoidin formation in the acetylated lysine system, while in the free lysine system a higher amount of pyrraline and hydroxymethyl furfural were detected. The pattern of low molecular weight products suggests that 3- deoxyglucosone and 1-deoxyglucosone degradation pathways are favored for free lysine and N(α)-acetyllysine, respectively. Whole data allow us to hypothesize that in a lactose-N(α)-acetyllysine model system the formation of colored high molecular weight polymer proceeds faster because less material is dispersed in reaction pathways, mainly the Strecker degradation, which leads to small and intermediate molecular weight products.
A comparison of color formation and Maillard reaction products of a lactose-lysine and lactose-N(α)-acetyllysine model system
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A comparison of color formation and Maillard reaction products of a lactose-lysine and lactose-N(α)-acetyllysine model system