Step 1: Understanding the Concept:
Dietary fiber consists of non-digestible carbohydrates classified by water solubility into soluble and insoluble fractions.
Step 2: Detailed Explanation:
1. Soluble Dietary Fibres: Readily dissolve or swell in water to form viscous gels, fermented by colon bacteria. Major examples include Pectins, gums, mucilages, and beta-glucans.
2. Insoluble Dietary Fibres: Do not dissolve in water; include cellulose, hemicellulose, and lignin.
3. Glycogen: Digestible animal storage polysaccharide.
4. Fructose: Digestible monosaccharide.
Step 3: Final Answer:
Hence, the soluble fibre component is Pectin, matching option (D).