Step 1: Understanding the Concept:
Food hydrocolloids (gums) are macromolecules used as thickeners, gelling agents, stabilizers, and emulsifiers in food formulations.
They are classified based on their biological origin, extraction sources, or chemical modifications.
Step 2: Detailed Explanation:
Let us match each type of gum with its corresponding representative material:
1. Gums from Plants (A): Many seed gums, such as guar gum and locust bean gum, are chemically composed of polyesters of galactose and mannose, known as Galactomannans. Thus, (A) matches with (III).
2. Gums from Seaweeds (B): Hydrocolloids extracted from red seaweeds, such as Chondrus crispus, yield sulfated galactans known as Carrageenans. Thus, (B) matches with (I).
3. Gums from Fermentation (C): Gums synthesized by microbial fermentation processes (such as those produced by Agrobacterium species) include Curdlan Gum (a beta-1,3-glucan). Thus, (C) matches with (IV).
4. Chemically Modified Gums (D): Cellulose is chemically etherified using monochloroacetic acid to yield Carboxymethylcellulose (CMC), which is a classic semi-synthetic, modified gum. Thus, (D) matches with (II).
This pairing perfectly corresponds to: (A) - (III), (B) - (I), (C) - (IV), (D) - (II).
This matches Option 3.
Step 3: Final Answer:
Therefore, the correct matching option is (C).