Different contributions of side-chains in β-d-(1 → 3,6)-galactans on intestinal Peyer's patch-immunomodulation by polysaccharides from Astragalus mongholics Bunge

β-d-(1 → 3)-Galactan and galactooligosaccharide glyco-cluster bearing β-d-(1 → 6)-oligogalactosyl side-chains were found as immunomodulator for intestinal Peyer's patch immunocompetent cells from aerial parts of Astragalus mongholics.