Table I.

Sources and structural characterization of UFH, PS3, and D.s.-SP

	UFH	PS3	D.s.-SP
Source	Porcine intestinal mucosa	Semisynthetically modified PhycarineTM  from Laminaria digitata	Delesseria sanguinea
Molecular mass (Mr)	5000–30,000a	9000–11,000a	n.d.
Hydrodynamic volume (SEC)b	10,000–60,000	16,000–20,000	25,000–280,000
Degree of sulfationc	1.2	2.2d	0.5
Basic structure	Linear glucosaminoglycan	Linear β-1,3-glucan	Branched xylogalactan

^aM_r values of UFH are obtained from literature, those of PS3 were determined by ESI-MS.

^bSize exclusion chromatography with neutral pullulans as molecular weight standards.

^cSulfate groups per monosaccharide.

^dThe primary OH–group in position 6 of PS3 is fully sulfated, whereas the two secondary OH–groups in positions 2 and 4 are equally sulfated to about 60% under the used conditions (Yvin et al. 2002; Ménard et al. 2004).