title: Soluble lignin-carbohydrate complexes from sheep rumen fluid: their composition and structural features.
abstract: Lignin-carbohydrate complexes, isolated from cell-free rumen fluid of sheep, consisted of polyphenolic material in association with carbohydrate (5.5%) and protein (1.8%). No separation of carbohydrate from the other components could be effected. The complexes showed a bimodal distribution of molecular size with the higher-molecular-weight fraction richer in carbohydrate. Methylation analysis indicated a wide range of linkages and a high proportion of terminal sugars. Reducing sugars were found in the complexes, particularly in the low-molecular-weight fraction (approximately 25%), suggesting that ether linkages to the phenolics were also present.
authors.affiliation: Rowett Research Institute, Bucksburn, Aberdeen, Great Britain.
authors.forename: J
authors.initials: J
authors.lastname: Conchie
authors.forename: A J
authors.initials: AJ
authors.lastname: Hay
authors.forename: J A
authors.initials: JA
authors.lastname: Lomax
mesh_terms: D000818:Animals; D002241:Carbohydrates / Q000032:analysis*; D005766:Gastrointestinal Contents / Q000032:analysis*; D008031:Lignin / Q000032:analysis*; D012417:Rumen / Q000032:analysis*; D012756:Sheep; D012995:Solubility
chemical_list: D002241:Carbohydrates; D008031:Lignin