The effect of rework content addition on the microstructure and viscoelastic properties of processed cheese.

The aim of this work was to add various amounts of rework (0.0 to 20.0% wt/wt) to processed cheeses with a dry matter content of 36% (wt/wt) and fat with a dry matter content of 45% (wt/wt). The effect of the rework addition on the viscoelastic properties and microstructure of the processed cheeses was observed. The addition of rework (in this case, to processed cheese with a spreadable consistency) in the amounts of 2.5, 5.0, and 10.0% (wt/wt) increased the firmness of the processed cheese. With the further addition of rework, the consistency of the processed cheeses no longer differed significantly. The conclusions obtained by the measurement of viscoelastic properties were supported by cryo-scanning electron microscopy, where fat droplets in samples with added rework of over 10.0% (wt/wt) were smaller than fat droplets in processed cheeses with lower additions of rework.

[1]  J. Nebesářová,et al.  Microstructure and textural and viscoelastic properties of model processed cheese with different dry matter and fat in dry matter content. , 2017, Journal of dairy science.

[2]  S. Anema,et al.  Effect of fat and protein-in-water concentrations on the properties of model processed cheese , 2015 .

[3]  R. Salek,et al.  The effect of composition of ternary mixtures containing phosphate and citrate emulsifying salts on selected textural properties of spreadable processed cheese , 2015 .

[4]  R. Salek,et al.  Use of sodium polyphosphates with different linear lengths in the production of spreadable processed cheese. , 2014, Journal of dairy science.

[5]  M. Alcântara,et al.  Effect of the type of fat on rheology, functional properties and sensory acceptance of spreadable cheese analogue , 2013 .

[6]  L. Zák,et al.  The effect of combinations of sodium phosphates in binary mixtures on selected texture parameters of processed cheese spreads , 2011 .

[7]  V. Pavlínek,et al.  Effect of addition of selected solid cosolutes on viscoelastic properties of model processed cheese containing pectin , 2009 .

[8]  G. Dimitreli,et al.  Instrumental Textural and Viscoelastic Properties of Processed Cheese as Affected by Emulsifying Salts and in Relation to its Apparent Viscosity , 2009 .

[9]  J. Hrabe,et al.  The effect of pectin concentration on viscoelastic and sensory properties of processed cheese , 2008 .

[10]  Rohit Kapoor,et al.  Process Cheese: Scientific and Technological Aspects—A Review , 2008 .

[11]  S. Anema,et al.  The influence of moisture content on the rheological properties of processed cheese spreads , 2004 .

[12]  Domenico Gabriele,et al.  A weak gel model for foods , 2001 .

[13]  M. Ziarno,et al.  Możliwości zastosowania hydrokoloidów w produkcji serów topionych , 2000 .

[14]  M. Kaláb,et al.  Textural Properties and Microstructure of Process Cheese Food Rework , 1987 .

[15]  A. Meyer.  Processed Cheese Manufacture , 1973 .