Rheological Properties of Chestnut Paste Beverage

The storage stability of the chestnut paste system was studied on the basis of retaining the total nutrients of the chestnut. In this paper,the relationship between rheological properties and storage stability of chestnut paste containing xanthan gum,carrageenan,CMC and composite stabilizer was investigated by rheometer. The shear rate was set between 2.0 and 200 s^-1,and the angular frequency ranged from 0.1 to 100 Hz. The static and dynamic rheological properties were measured at 4℃ refrigeration and 25℃ ambient temperature. The results showed that the quality of the chestnut paste with the composite stabilizer was the best within 50 days after storage. The viscosity ranged from 0.2 to 6.6 Pa·s and the shear stress ranged from 4 to 12 Pa. When the temperature was raised from 4 to 40℃,the apparent viscosity of the chestnut paste decreased from 1.1 to 0.45 Pa·s,indicating that the chestnut paste had good storage stability.