Topics:
Animal Refresher, Meat Science
Crude Form That Glue Represents
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Question (English)
Glue is a crude form of:
- Gum
- Gelatin ✓ Correct
- Collagen
- Tallow
Explanation:
Correct Answer: Gelatin
Glue is a crude (impure) form of gelatin. Both are derived from the same source — animal connective tissue (bones, skin, and tendons) — but differ in purity and processing level.
Gelatin vs Glue
- Gelatin (food-grade) — Highly purified, colourless/pale yellow, odourless; used in food (jellies, yoghurt, marshmallows, capsule shells, wine clarification)
- Glue (technical-grade gelatin) — Crude, less purified; dark coloured; used in woodworking, bookbinding, sizing of paper and textiles
Production of Gelatin/Glue
- Animal bones/skins are cleaned and degreased
- For bone gelatin: acid treatment (ossein) or alkali treatment
- Hot water extraction → collagen partially hydrolysed → gelatin sol
- Filtration, bleaching, drying → gelatin (food grade) or glue (technical grade)
Related By-product Facts
- Bone collagen = Ossein = Demineralized bone
- Horn raw material → Gelatin
- Glue = crude gelatin
- Gelatin production from ossein is a major industry globally
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Meat Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
