Chauveau C, Talaga P, Wieruszeski J M, Strecker G, Chavant L
Laboratoire de Mycologie, Université Paul Sabatier-Toulouse III, France.
Phytochemistry. 1996 Sep;43(2):413-5. doi: 10.1016/0031-9422(96)00234-8.
The main component of a water extract of Boletus erythropus fruiting bodies is a M(r) 10(6) glucan. The use of classical structural analysis and HMQC (heteronuclear multiple quantum coherence) NMR experiments indicates a (1-->3) linked beta-D-glucan structure with a single glucose residue attached to O-6 of the main chain and a branching frequency of 1/3.