Table 1.

GC-MS data for methylation analysis of ABP isolated from the fruiting bodies of A. bisporus.

Methylated sugar	Linkage type	Molar ratio	Major mass fragment (m/z)
2,3,4-tri-O-methylglucose	→6)-d-Glcp-(1→	2.25	43, 87, 101, 117, 129, 161, 189, 233
2,3,6-tri-O-methylmannose	→4)-d-Manp-(1→	2.00	43, 87, 101, 117, 129, 161, 189, 261
2,3,4-tri-O-methylgalactose	→6)-d-Galp-(1→	0.35	43, 87, 101, 117, 129, 161, 173, 189, 233
2,3,4-tri-O-methylxylose	→6)-d-Xylp-(1→	0.20	87, 99, 117, 139, 161, 217, 233