The structure was elucidated in this paper NCBI PubMed ID:8370027 Publication DOI:10.1016/0008-6215(93)80079-t Journal NLM ID:0043535 Publisher: Elsevier Institutions: Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Sweden
The exopolysaccharide acetan, elaborated by Acetobacter xylinum, has been investigated. The polysaccharide and a heptasaccharide, obtained on enzymic hydrolysis, corresponding to the repeating unit were characterised by sugar and methylation analysis and by NMR spectroscopy and MS. It is concluded that the polysaccharide is composed of repeating units with the following structure. [formula: see text] The polysaccharide further contains approximately two O-acetyl groups per repeating unit, which have not been assigned, but it appears that they are on primary locations.
Structure type: polymer chemical repeating unit Location inside paper: abstract, p.309, structure 8 Trivial name: acetan Compound class: EPS
Methods: 13C NMR, 1H NMR, FAB-MS, enzymatic depolymerization Comments, role: Parent molecule: acetan; two O-Ac per repeat unit, location unknown
Related record ID(s): 111060, 117292 NCBI Taxonomy refs (TaxIDs):28448 Reference(s) to other database(s): GlycomeDB:4307