Abstract
Reducing salt content in processed foods while maintaining flavor is crucial for human health. This study investigates the sensory interaction between the pungency of black pepper oleoresin and saltiness within an oleogel matrix by incorporating NaCl nanocrystals into a black pepper oleoresin formulated with glyceryl monostearate and soy lecithin (G-L-P). Psychophysical results revealed that the salt content in the G-L-P and G-L systems (G-L-P without black pepper oleoresin) was reduced by up to 66.77 % and 37.08 % compared to the G system (G-L without soy lecithin), respectively. During oral processing, the G-L and G-L-P systems formed oil-in-water emulsions with smaller and more numerous oil droplets. Within 5 s, the Na+ concentration was lowest in the G system (2.2 g/L), while the G-L and G-L-P systems showed higher concentrations (3.1 g/L and 3.0 g/L, respectively). This research provides a theoretical basis for the food industry to develop low-salt products without compromising flavor.
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