Determination of viscosity changes of protein hydrolyzate solutions depending on shear rate

Rheological characteristics of connective tissue protein solutions were made on the basis of viscosity measurement using a Brookfield viscometer using LV SC4 - 27 spindles and shear rate of 85 s-1 (Fig. 1). Solutions of protein hydrolysates with a concentration of 2% in 0.5M acetic acid were prepared.
The data allowed to characterize the used protein hydrolysates and evaluate their functional parameters as substances modifying rheologies of food products stored in refrigerated conditions. Fig.1. Brokfield rotational viscometer - model DV-III +.