title: Specificity of an esterase (XYLD) from Pseudomonas fluorescens subsp. cellulosa.
abstract: Activity of an esterase from Pseudomonas fluorescens subsp. cellulosa (XYLD) on an insoluble feruloylated hemicellulose substrate (de-starched wheat bran) was dependent on the source of added endo-xylanase. The esterase exhibited high selectivity for the nature, position of linkage and size of the feruloylated oligosaccharides generated by hydrolysis of the hemicellulose. Increased affinity of XYLD with increasing size of the oligosaccharide substrate suggests that optimal activity is observed on substrates with at least 4 sugars.
authors.affiliation: Department of Food Molecular Biochemistry, Norwich Laboratory, UK.
authors.forename: C B
authors.initials: CB
authors.lastname: Faulds
authors.forename: M C
authors.initials: MC
authors.lastname: Ralet
authors.forename: G
authors.initials: G
authors.lastname: Williamson
authors.forename: G P
authors.initials: GP
authors.lastname: Hazlewood
authors.forename: H J
authors.initials: HJ
authors.lastname: Gilbert
mesh_terms: D003373:Coumaric Acids / Q000032:analysis; D004950:Esterases / Q000302:isolation & purification* / Q000378:metabolism; D007700:Kinetics; D009844:Oligosaccharides / Q000378:metabolism; D011551:Pseudomonas fluorescens / Q000201:enzymology*; D013379:Substrate Specificity; D014995:Xylosidases / Q000378:metabolism
chemical_list: D003373:Coumaric Acids; D009844:Oligosaccharides; C004999:ferulic acid; D004950:Esterases; D014995:Xylosidases