State diagram and the glass transition - Questions
5 important questions on State diagram and the glass transition - Questions
If we remove some water from a sugar solution such that we exceed the solubility limit of sugar
- A supersaturated solution forms
- The system is in thermodynamic equilibrium
- Ice crystals form
- The overall viscosity of the product decreases
A first step in the making of bread is the creation of a dough. Dough is prepared by mixing water and wheat flour at room temperature. What is the main reason for water addition?
- The addition of water transforms the gluten from a glass into a rubber
- In this processing step, water causes starch gelatinisation
- Water is a prerequisite for the Maillard reaction
- Water allows the formation of additional crosslinks in the gluten network
Nowadays, thicker French fries have become popular. An increased size leads for a given residence time to
- A larger Fo and Bi number
- A larger Fo, but smaller Bi number
- A smaller Fo, but larger Bi number
- Smaller Fo and Bi numbers
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Heating can induce protein denaturation, which can, in turn, induce protein network formation T/F
Heating promotes non-enzymatic browning reactions T/F
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