Mannose to galactose ratios (II)

• 4:1 for E 410; 2:1 for E 412

• But, different ratios have been described:

  • 3.0:1 and 1.5:1 (Preuss and Their, Z Lebensm Unters Forsch, 175:93, 1982)
  • 2.7:1 and 1.4:1 (Angelini et al, Riv Soc Ital Alim, 13:479, 1984)
  • 3.7:1 and 2.3:1 (Cheetham et al, Carbohyd Pol 6:257, 1986)
  • 3.7 to 7.7:1 depending on the solubilization temperature of E 410 (Lopes da Silva and Gonzales, Foof Hydrocol. 4:277, 1990)

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However, these differences cannot be exploited for the differentiation of LBG and guar gum, since the literature describes variations in the galactose to mannose ratios. It would still be possible, for isolated gums, to ensure if the analyzed sample is LB