Liquid foods are classified as Newtonian or nonNewtonian
depending on the relationship between shear rate and
shear stress.The viscosity of foods has
an important place in order to understand the structure of food,
food processing and equipment, control of the food production.There have been a lot of
recent studies to define the rheological properties of materials used
in food industry.On the other
hand, there is no enough information about rheological characteristics
of fermented soy milk with added apple juice, according to
the best of the authors' knowledge.Since fermented soy milk with
added apple juice could be produced as commercial beverages, the
information on its rheological properties is essential for its
formulation and to design of fermented soy milk beverage production
equipment, especially pumping and piping systems.The aim of this study was to combine soymilk and apple juice at
different concentrations to produce a new fermented soymilk drink,
and also to determine the survival of L. acidophilus and changes on
rheological properties throughout the storage period of 21 days.