Abstract
d-Psicose, recognized as a noncaloric sweetener, has shown a great potential in food industry. In the present study, d-psicose and d-fructose were used to modify bovine β-lactoglobulin (β-Lg) through Maillard reaction. The Maillard reaction process and the physicochemical and structural properties of the modified proteins were also investigated. The result showed that compared to d-fructose, d-psicose played a more effective role in the Maillard reaction, especially after the initial stage of the reaction. Moreover, the modified β-Lg with d-psicose had more polymeric compounds, higher antioxidant activity, but lower thermal stability than that with d-fructose. These findings, especially the structural changes of the modified proteins, supplied detail information on the Maillard reaction of d-psicose, and could provide some guidance to the practical applications of this rare sugar on food industry.
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Zeng, Y., Zhang, H., Guan, Y. et al. Comparative study on the effects of d-psicose and d-fructose in the Maillard reaction with β-lactoglobulin. Food Sci Biotechnol 22, 341–346 (2013). https://doi.org/10.1007/s10068-013-0086-9
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DOI: https://doi.org/10.1007/s10068-013-0086-9