Research Article

Partial Chemical Characterization of Immunomodulatory Polysaccharides from Plantago palmata Hook. f. s. Leaves

Table 2

Monosaccharides constitutive of the PS extracted from Plantago palmata and Plantago major (% of total carbohydrates).


Sample
PS50 from Plantago PS50 from Plantago Fraction F2 from Plantago

Man5.7% (5.8%–5.5%)5.4% (4.9%–6.0%)27.7%
Ara/Xylc27.8% (28.8%–26.8%)26.8% (25.5%–28.0%)17.7%
FucTracesTracesn.d.
Glc20.7% (21.0%–20.3%)4.8% (4.7%–4.9%)16.9%
Gal30.0% (30.8%–28.7%)39.2% (37.4 %–41.0%)13.3%
Rha7.6% (5.6%–9.6%)9.6% (10.9 %–8.3%)12.5%
GlcATracesn.d.n.d.
GalA8.5% (8.1%–8.8%)14.2% (16.5% –11.9%)11.8%

aData from 2 experiments in duplicate; in brackets, the values from the 2 experiments.
bData from 1 experiment in duplicate.
cTLC shows that the ratio Ara/Xyl is approximately 9 : 1 in both Plantago (Figure 4).