What You Need to Know
Guar gum, a high‑molecular‑weight galactomannan polysaccharide, hydrates at 30–40 °C to create a physical network that impedes droplet coalescence. Proper pre‑hydration (10–15 min) and concentrations of 0.2–0.5 % w/w provide optimal viscosity, while avoiding divalent cation cross‑linking and high sugar levels preserves stability. Excess heat (>80 °C) can cause retrogradation and gel collapse.
Steps
- 1.
Khandvi (Gujarat, India): Provides structural integrity to rolled chickpea flour sheets
- 2.
Gluten-free bread (Global): Mimics gluten's water-binding capacity
- 3.
Industrial ice cream (United States): Prevents ice crystal formation during freeze-thaw cycles
The Science
Primary Reaction
Physical network formation via hydrogen bonding and entanglement of polysaccharide chains