Why gelatin is used a lot in making ice-cream?

Correct option is B

The correct answer is (b) In stabilizing colloid and preventing crystal formation

Explanation:
• Ice cream is fundamentally a complex colloidal system (an emulsion of fat droplets in water, mixed with air bubbles).
• Gelatin is heavily utilized as a commercial stabilizer. It firmly binds excess free water, thereby stabilizing the colloid and strictly preventing the formation of large, gritty ice crystals during the freezing process.
• This guarantees the final dessert maintains a smooth, highly creamy texture.

Information Booster:
• Gelatin is a protective colloid; it possesses a very high Gold Number, meaning it is highly effective at preventing coagulation.
• Modern commercial manufacturers also frequently use plant-based stabilizers like guar gum or carrageenan to achieve the exact same effect.

Additional Knowledge:
To prevent colloid formation (Option a)
• Completely incorrect; the goal is specifically to maintain the colloid, not destroy it.
To stabilize the mixture (Option c)
• While partially true, Option (b) provides the technically rigorous and complete scientific reason by specifically citing the prevention of ice crystals.
To make it scented (Option d)
• Gelatin is entirely odorless and tasteless; flavorings and essences handle the scent.
None of the above/More than one of the above (Option e)
• Incorrect, as option (b) hits the precise scientific rationale.

So the correct answer is (b)