Fucogalactan from the giant mushroom Macrocybe titans inhibits melanoma cells migration

An aqueous extract containing polysaccharides was obtained from the giant mushroom Macrocybe titans, and it was purified by amylase treatment, freeze-thawing process and dialysis. The purified fraction (ESP) was analyzed by HPSEC and GC–MS which showed a homogenous polysaccharide with Mw 14.2 × 103 g/mol composed by galactose and fucose. NMR and methylation analysis of ESP confirmed the presence of a fucogalactan with a (1 → 6)-linked α-d-Galp...