Corresponding author:Oksana Bass E-mail: Kleona@meta.ua
DOI:10.24263/2304-974X-2017-6-2-8Introduction. Starch syrup is widely used as a sweetener for the production of ice cream, but its structuring ability is not sufficiently studied and requires additional research. Revealing patterns of structuring mixtures with the syrup of different degrees of saccharification allows to reduce the need for structural stabilizers and to achieve a technological effect in the process of ice cream production at the expense of only natural ingredients.Materials and methods. Rheological characteristics of mixtures of ice cream and aromatic ice cream with glucosefructose syrup (HFCS-96), glucose syrup (HFCS-42) and carotene syrup (HFCS-30) have been investigated by using a rotary viscometer.Results and discussions. With complete replacement of sugar for starch syrup HFCS-30 and HFCS-42, the initial effective viscosity of ice cream mixtures increases by 22,1% and 2,5% respectively, compared to the control sample with sugar. as compared to the control sample with sugar. At the same time, complete replacement of sugar on the syrup HFCS-96 contributes to a decrease in the initial effective viscosity of the ice cream mixture by 15,3%. Initial effective viscosity of aromatic ice cream mixtures at full replacement of sugar by HFCS-30 and HFCS-42 increased by 27,1% and 14,8% respectively, and decreased by 11,6% at full replacement of sugar for HFCS-96 syrup.Starch syrups HFCS-42 and HFCS-96 provide mixtures of thixotropic properties. Instead, systems with syrup HFCS-30 can not only completely restore the structure, but also show weak reopectic properties. Due to this, in the mode of inverse reduction of the shear rate, the effective viscosity of the mixtures of ice cream of cream and aromatic, in case of complete replacement of sugar, increases by 12,7% and 18, 8%, respectively, compared with the initial values. In mixtures containing a mixture of HFCS-96 and HFCS-30 patches at a ratio of 30:70, the effective viscosity increases in reverse slip rate by 9,5% and 12,5% for ice cream and aromatic ice cream, respectively, compared to Initial values.Conclusions. The structuring ability of starch syrup decreases with increasing its degree of saccharification. The revealed pattern of the effect of starch syrup with different dextrose equivalent on viscosity characteristics of mixtures of different chemical compositions makes it possible to purposefully form indicators of ice cream quality.