Molecular Architecture
Linear backbone of (1→4)-β-D-mannopyranose with α-D-galactopyranose side chains via (1→6) linkages. MW: 1,000,000–2,330,000 daltons.
The Critical 3:1 Ratio
Guar = 2:1 (34% galactose): best cold solubility, limited synergy. Tara = 3:1 (25%): good cold solubility + strong synergistic capability. LBG = 4:1 (20%): best synergy, poor cold solubility.
Tara's Optimal Position
Sufficient cold-water solubility, strong synergy with kappa-carrageenan and xanthan, high viscosity generation, excellent freeze-thaw stability — best of both worlds.
FTIR Confirmation
Characteristic bands for –OH stretching (3393–3442 cm⁻¹), sugars including galactose, and C=O/C–O bonds confirming polysaccharide structure. These groups drive water-binding and film-forming abilities.