Anion exchange chromatography of the crude

	Crude GMP	Product adsorbed on the column (purified GMP)	Product unadsorbed on the column
Sialic acid	8.44^a	15.51 ± 1.75^b	0.82 ± 0.47^b
Galactose	3.25	5.10 ± 0.85	0.70 ± 0.11
Galactosamine	3.85	6.14 ± 1.74	0.94 ± 0.26
Phosphorus	0.42	0.43 ± 0.02	0.62 ± 0.05

^aAverage of two determinations.
^bMean ± SD (n = 6).

Table 2: Concentrations (g/100g) of carbohydrate and phosphorus in the crude GMP and products obtained by anion exchange chromatography.