Home MCQs Food Science and Technology Question #5965
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Food Science and Technology QUESTION #5965
Question 1
The primary purpose of 'aging' ice cream mix overnight at \(2\text{–}4^{\circ}\text{C}\) before freezing is:
  • To allow lactose crystallization to reach equilibrium
  • To allow complete fat crystallization, protein hydration, and emulsifier-protein interaction, improving whipping properties and texture✔️
  • To allow starter culture to acidify the mix
  • To reduce microbial contamination
Correct Answer Explanation
Aging (maturation) of ice cream mix at \(2\text{–}4^{\circ}\text{C}\) for \(4\text{–}24\) hours serves: (1) fat crystallization (partially crystalline fat globules enable partial coalescence during freezing); (2) protein hydration (improved viscosity and body); (3) emulsifier adsorption to fat globule surface enabling controlled partial coalescence.