glucomannan chebi_ontology CHEBI:17020 pubmed:7872224 pubmed:12356785 pubmed:9742462 CHEBI:24263 pubmed:8365697 Glucomannoglycan pubmed:12569112 reaxys:8188346 reaxys:11315759 cas:76081-94-2 kegg.glycan:G11598 CHEBI:28236 kegg.compound:C01810 kegg.compound:C02101 A heteroglycan consisting of β-(1→4)-linked <small>D</small>-glucose (G) and <small>D</small>-mannose (M) in a proportion of 5:8. The basic polymeric repeating unit has the pattern: GGMMGMMMMMGGM, with branching through β-(1→3)- and β-(1→6)-glucosyl linkages. Acetate groups are present on C-6 every 9-19 units of the main chain. CHEBI:11106 CHEBI:11105 pubmed:6096282 (Glucomannan)n pubmed:14983741 pubmed:19108925 Glucomannan (Glucomannan)n+1 CHEBI:283 CHEBI:18834 CHEBI:5410 pubmed:2840365 hemicellulose