Related Experiment Video
Updated: Jul 2, 2025

08:38
Novel Production Protocol for Small-scale Manufacture of Probiotic Fermented Foods
Published on: September 10, 2016
24.5K
Perspectives on the yogurt rheology
Didem Sözeri Atik1, Hale İnci Öztürk2, Nihat Akın3
1Tekirdağ Namık Kemal University, Department of Food Engineering, Tekirdağ, Turkey; University of Wisconsin-Madison, Department of Food Science, Madison, WI, USA.
International Journal of Biological Macromolecules
|February 25, 2024
Summary
Yogurt
Area of Science:
- Food science
- Rheology
- Tribology
Background:
- Yogurt's oral processing involves complex deformation.
- Understanding yogurt's rheology is key to its texture and sensory perception.
- Yogurt exhibits non-Newtonian viscoelastic behavior.
Purpose of the Study:
- To review factors influencing yogurt rheology.
- To discuss analytical methods for rheological property determination.
- To explore microstructural, rheological, and tribological characterization of yogurt.
Main Methods:
- Review of scientific literature on yogurt rheology and tribology.
- Analysis of factors affecting yogurt's structure and flow.
- Examination of rheological measurement techniques.
Main Results:
- Yogurt rheology is influenced by production and formulation.
- Tribology complements rheology in understanding oral texture.
- Recent research focuses on production impacts and formulation design.
Conclusions:
- Rheological and tribological properties are crucial for yogurt quality.
- Further research is needed to optimize yogurt texture and sensory attributes.
- This review synthesizes current knowledge on yogurt's physical properties.
Related Concept Videos
Colloids and Suspensions
1.8K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
1.8K
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
267
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
267
Problem Solving on Stress and Strain
742
Stress is a quantity that describes the magnitude of a force that causes deformation, generally defined as internal force per unit area. When forces pull on an object and cause its elongation, like the stretching of an elastic band, it is called tensile stress. When forces cause the compression of an object, it is known as compressive stress. When an object is being squeezed uniformly from all sides, like a submarine in the depths of the ocean, we call this kind of stress bulk stress (or volume...
742
Viscosity
5.9K
When water is poured into a glass, it falls freely and quickly, whereas if honey or maple syrup is poured over a pancake, it flows slowly and sticks to the surface of the container. This difference in the flow of different kinds of liquids arises due to the fluid friction between the liquid layers and the liquid and the surrounding material. This property of fluids is called fluid viscosity. In this example, water has a lower viscosity than honey and maple syrup.
The SI unit of viscosity is...
The SI unit of viscosity is...
5.9K
Viscosity of Fluid
407
Viscosity measures the resistance a fluid offers to flow and deformation. It results from internal friction between layers of fluid moving relative to one another. Dynamic viscosity, denoted by the Greek letter mu (μ), quantifies the force needed to move one fluid layer over another. For Newtonian fluids like water and air, the relationship between the shearing stress and the rate of shearing strain is linear, meaning their viscosity remains constant regardless of the applied stress.
407
Types of Fluids
254
Fluids can be classified into Newtonian and non-Newtonian fluids based on their response to shear stress. Newtonian fluids have a linear relationship between shear stress and the shear strain rate, following Newton's law of viscosity. Their viscosity remains constant regardless of the shear rate, making their behavior predictable and easier to analyze. Common examples include water, air, oil, and gasoline.
In contrast, non-Newtonian fluids do not follow Newton's law of viscosity, and...
In contrast, non-Newtonian fluids do not follow Newton's law of viscosity, and...
254

