Conformation Monosaccharide and linkages will determine overconformation.May have periodic and nonperiodic regains of conformation PC◇^wbP Fig.4.12.Conformations of some B-D-glucans. Linkages::a1→4.b1→3，c1→2(according to Rees,1977) Extended or Stretched Ribbon- Type 1,4 B-D-glucopranosyl residues CH2OHO 0 0 HO HO (4.114) 1212 Conformation Monosaccharide and linkages will determine overconformation. May have periodic and nonperiodic regains of conformation Extended or Stretched Ribbon￾Type 1,4 β-D-glucopranosyl residues