आइसक्रीम घनरूप करण्याकरिता वापरला जाणारा जिलेटीन हा पदार्थ ________ पासून निघतो.
(1) बुरशी
(2) फळांची साले
(3) प्राण्यांची हाडे
(4) सुक्ष्मजीव

The correct answer is Option C (Bones of animals).

Key Points:
• Core Concept
• Food hydrocolloids and gelling agents stabilize ice crystals, enhance viscosity, and provide a smooth texture in frozen desserts.
• Why Correct
• Gelatin is an animal-derived water-soluble protein product obtained by the irreversible thermal denaturation and partial hydrolysis of collagen.
• Collagen is extracted commercially from connective tissues, animal bones (प्राण्यांची हाडे), and skin (porcine and bovine sources).
• Key Details
• Gelatin prevents large, coarse ice crystal formation in ice cream, ensuring creamy consistency. Plant-based alternatives include agar-agar (from red algae) and pectin (from fruit skins).
• Exam Traps
• Pectin is derived from the skin and rinds of fruits, whereas Gelatin is obtained exclusively from animal collagen/bones.
• Other Options
• Fungi (Option 1) and Bacteria (Option 4) produce single-cell proteins or xanthan gum, not gelatin.
• Skin of fruits (Option 2) yields pectin.
• Key Takeaway: Gelatin is a commercial gelling agent derived from animal bones and collagen-rich connective tissues.