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Questions to practice exam Food Ingredient Functionality (Physics)
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What does a higher value for a mean?
What does a higher value for a mean?
A higher hydrodynamic radius/volume of the polymer --> higher viscosity because larger polymers take more space in solution and thus contribute more to viscosity
How do you know when to use simple or longer formula for viscosity of solution?
How do you know when to use simple or longer formula for viscosity of solution?
Make a graph with viscosity as function of concentration for both formulas. Intersection point is from where you should use second formula.
How do flexible proteins stabilize the interface?
How do flexible proteins stabilize the interface?
They arrange their hydrophobic and hydrophillic groups even better than whey proteins do.
What is the formula for the surface of a sphere?
What is the formula for the surface of a sphere?
4*pi*r^2
What happens when adding a monovalent salt to an emulsion stabilized by protein at pH 6.
What happens when adding a monovalent salt to an emulsion stabilized by protein at pH 6.
The proteins had a charge which made them to repulse each other and so their was repulsion between the droplets. The salt reduces this charge so less repulsion and more unstable
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