Taxonomic group: fungi / Ascomycota
(Phylum: Ascomycota)
Publication DOI: 10.1002/masy.19971200118Journal NLM ID: 9888296Publisher: Basel; Oxford, CT: Hüthig & Wepf
Institutions: Institut fur Pharmazie, Universitat Regensburg, UniversitatsstraBe 3 1,93040 Regensburg, Germany
A series of different Polysaccharides with actual or potential medicinal or industrial utilization such as linear fructans of the inuline type, branched fungal β-1-3,1-6-glucans, galactomannans of the guar type, acidic polysaccharides such as alginates, pectins were submitted to experimental stress-and non stress conditions. The resistance to humidity, thermal degradation, pH influence and microbial decomposition was studied by measuring the relative viscosity, reduction in DP values, degradation of specific conformations and glycosidic linkages. It could be clearly shown that most polysaccharides are stable at room temerature in a dry environment. At increased temperature even in the absence of water, polymer decomposition was documented. Polysaccharide solutions, when stored under thermal stress (40 degrees, 60 degrees, 80 degrees C), showed structure dependent rapid progress in degradation of primary and secondary structures. The kinetics of these decompositions were measured over prolonged periods in order to give a practical background for the utilization of such polymers in pharmaceuticals, cosmetics and food products.
Structure type: homopolymer ; n=1-4, n=20-2250
Location inside paper: p.179
Trivial name: glomerellan
Contained glycoepitopes: IEDB_1397514,IEDB_142488,IEDB_146664,IEDB_153543,IEDB_158555,IEDB_161166,IEDB_2278476,IEDB_2278477,IEDB_558869,IEDB_857743,IEDB_983931,SB_192
Methods: acid hydrolysis, viscosity measurement
Comments, role: Part of the unregular structure of the glomerellan - side chain (n=1-4) and backbone (n=20-2250) of (l-3,1-6)-b-D-glucan (see ID 40040)
Related record ID(s): 40046
NCBI Taxonomy refs (TaxIDs): 474922Reference(s) to other database(s): GTC:G51056AN
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There is only one chemically distinct structure:
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(later renamed to: Colletotrichum gloeosporioides)