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Food industry encounter increasing demand for reducing fat in food products so due respond of food manufacturers to consumer demand we are witnessing a rapid growth in the production of low-fat products. The present research was thus aimed optimizing the formulation of low-fat breakfast cream to achieve a product with Pleasant rheological properties. The back extrusion test was done using the Texture Analyzer and the steady shear test was performed using rotary viscometer. Since the coefficient of determination (R²) were higher than 0.7, and lack of fit for all above characters were not significant (p<0.05), the suggested regression models were found to be suitable for fitting the experimental fitting. The results of back extrusion test showed that with the simultaneous increase of starch and capacaragin gum and also guar gum and capacaragin gum, the amount of hardness, consistency and cohesiveness increased. The results of the steady shear test showed that the flow behavior index (n) of all samples was less than one which indicates a shear thinning behavior (pseudoplastic) of all samples. According to optimization, it was found that the amount of starch 1.82%, guar gum 0.12% and kappa carrageenan gum 0.014% led to a low-fat breakfast cream with desirable rheological properties.

Keywords: Breakfast cream, Low-fat, starch, Guar gum and Kappa carrageenan, Rheological properties

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