Publicou 12 edições por ano
ISSN Imprimir: 1521-9437
ISSN On-line: 1940-4344
IF:
1.2
5-Year IF:
1.4
Immediacy Index:
0.3
Eigenfactor:
0.00066
JCI:
0.34
SJR:
0.274
SNIP:
0.41
CiteScore™::
2.8
H-Index:
37
Indexed in
Chemical Characterization and Structure of Exopolysaccharides from Submerged Culture of New Medicinal Mushroom from China, Phellinus mori (Higher Basidiomycetes)
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RESUMO
Two different exopolysaccharides (EPSs) were first time-fractionated from submerged mycelia culture of Phellinus mori (PM) by gel-filtration chromatography: PM-EPS1 and PM-EPS3. Results of compositional analysis using high-performance anion exchange chromatography indicated that both PM-EPS1 and PM-EPS3 were heteropolysaccharides consisting of mannose, glucose, galactose, and rhamnose. Gel permeation chromatography analysis showed that the weight-average molecular mass of PM-EPS1 and PM-EPS3 were 4,990 g/mol and 27,890 g/mol, respectively. Fourier transform infrared spectral analysis of PM-EPS1 and PM-ESP3 revealed prominent characteristic groups corresponding to carbohydrates. 1H and 13C nuclear magnetic resonance spectroscopy analysis indicated that PM-EPS3 had a (1→4)-linked mannopyranosyl backbone, with branches of (1→4)-linked glucosyl residues and (1→3, 4)-linked galactopyranosyl residues. Preliminary activity tests in vitro revealed that the hydroxyl radical scavenging activity and total superoxide dismutase activities of PM-EPS3 obviously increased with an increase in concentration at the range 0.1−2.5 mg/mL.
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