Question:

Which of the following type of frozen product requires maximum addition of a given stabilizer?

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Products without milk solids (like water ices and sherbets) have no protein or fat to assist in binding water.
They always require the highest concentration of stabilizers to prevent the growth of large, icy crystals.
  • Frozen yoghurt
  • Ices
  • Chocolate ice cream
  • Pineapple ice cream (Plain)
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the Concept:
Stabilizers are macromolecules added to frozen dairy products and frozen desserts to bind water and increase viscosity.
They help prevent the formation of large, coarse ice crystals during freezing and storage.
The required amount of stabilizer in a frozen product is inversely related to the total solids content, especially milk solids (fat and MSNF).
Milk fat and milk proteins naturally contribute to the viscosity, structure, and smooth body of frozen desserts.

Step 2: Detailed Explanation:

Let us analyze the composition of the different products to determine the stabilizer requirements:
- Frozen yoghurt, chocolate ice cream, and plain pineapple ice cream contain substantial amounts of milk fat and milk solids-not-fat (MSNF).
These milk solids naturally increase viscosity and provide body, which reduces the amount of stabilizer needed (typically around $0.2\%$ to $0.5\%$).
- Water ices (or simply "Ices") consist primarily of water, sugar, fruit acids, color, and flavor, with no milk solids or fat.
Because there are no milk fats or proteins to bind water or provide structure, water ices are highly prone to forming large, coarse ice crystals.
Consequently, they require a significantly higher concentration of stabilizers (often up to $0.4\%$ to $0.6\%$ or more of gums, pectin, or gelatin) to bind the free water and maintain a smooth, palatable texture.
Therefore, water ices require the maximum addition of a given stabilizer among the listed options.

Step 3: Final Answer:

The frozen product that requires the maximum addition of a given stabilizer is Ices.
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