Affiliation:
1. 1 Faculty of Food Engineering , Stefan cel Mare University of Suceava , 13 University Str., 720229 Suceava , Romania
Abstract
Abstract
The equilibrium stress, decay stress, relaxation time, viscosity, modulus of elasticity, and decay modulus are major characteristics of viscoelastic food materials and therefore a modified mechanical model was used in this current research for the viscoelastic properties’ evaluation of Kashkaval cheese. Also, the chemical composition (fat content, moisture, protein content, water activity, salt, and acidity), and inside-outside color of the Kashkaval cheese were studied. From the analysis of stress relaxation curves the analyzed cheese samples fall into the category of viscoelastic solids with equilibrium stress greater than 0. The decay stress and decay modulus of the maturated unpacked samples showed the highest values of 36.31 kPa and 121.05 kPa, while the relaxation time of cheese samples was greater than 112.35 s. To evaluate the fit of the applied mechanical model to the experimental data the determination coefficient (R2 > 0.937) and the absolute average deviation coefficient were calculated (AAD < 10.324) and the evaluated cheeses’ parameters with the modified Maxwell model were at statistically appropriate levels.
Reference44 articles.
1. [1]. P.S. Kindstedt, The history of cheese, In Global Cheesemaking Technology: Cheese Quality and Characteristics, Wiley 1st edition (2017) 1-19.
2. [2]. P.L. McSweeney, G. Ottogalli, P.F. Fox, Diversity and classification of cheese varieties: an overview, In Cheese: Chemistry, Physics and Microbiology, Fourth Edition, Academic Press (2017) 781-808.
3. [3]. L. Santiago-López, J.E. Aguilar-Toalá, A. Hernández-Mendoza, B. Vallejo-Cordoba, A.M. Liceaga, A.F. González-Córdova, Invited review: Bioactive compounds produced during cheese ripening and health effects associated with aged cheese consumption, Journal of Dairy Science 101 (2018) 3742-3757.
4. [4]. Y.C. O’Callaghan, T.P. O’Connor, N.M.O’Brien, Nutritional aspects of cheese, In Fundamentals of cheese science, Springer, Boston, MA (2017) 715-730.
5. [5]. G.V. Hoha, M.G. Usturoi, B. Păsărin, C.E. Nistor, Research on the history of manufacturing pressed cheese in Romania, Scientific Papers-Animal Science Series: Lucrări Ştiinţifice - Seria Zootehnie 75 (2021) 282-284.