Effect of Viscosity on Sensory Profile and Consumer Perception: Case Study of Soup- Based Products

Saltiness perception is affected by both extrinsic factors, such as like packaging, receptacle or external environment, and intrinsic factors including sweetness, sourness, and viscosity. This research aimed to study the saltiness perception and sensory profiles of different types of soups. Regarding the effect of xanthan gum, additions of different concentrations of xanthan gum responded to different viscosities in soup samples significantly. Chicken clear soup and Tomyum clear soup without xanthan gum had the significantly lowest viscosity, while Tomyum cream soup and Phanaeng curry with 0.25% xanthan gum had the significantly highest viscosity. Free Choice Profiling showed the first and second dimensions accounted for more than 80% of all soups samples. For the chicken clear soup, both time and xanthan gum only affected the viscosity. According to the consumer test, it was found that xanthan gum had a significant effect on the thickness intensity of all soups, while there was no found significant effect on saltiness perception and acceptance in all types of soup in this study.