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International Journal of Medicinal Mushrooms
Factor de Impacto: 1.423 Factor de Impacto de 5 años: 1.525 SJR: 0.431 SNIP: 0.716 CiteScore™: 2.6

ISSN Imprimir: 1521-9437
ISSN En Línea: 1940-4344

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International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.2020034227
pages 455-466

Bioactivities and Molecular Characterizations of the Polysaccharide(s) from Ultrasonic-Circulating Extracts of Lingzhi or Reishi Medicinal Mushroom, Ganoderma lucidum (Agaricomycetes)

Ti Qiang Chen
Institute of Edible and Medicinal Fungi, Fujian Academy of Agricultural Sciences, Fuzhou, China
Yong-Jun Kan
Fujian University of Traditional Chinese Medicine, Fuzhou, China
Chi Yang
Institute of Edible Fungi, Fujian Academy of Agricultural Sciences, Fuzhou, China; National and Local Joint Engineering Research Center for Breeding and Cultivation of Featured Edible Fungi, Fujian Academy of Agricultural Sciences, Fuzhou, China
Jian-Guo Wu
Fujian University of Traditional Chinese Medicine, Fuzhou, China
Jin-Zhong Wu
Fujian University of Traditional Chinese Medicine, Fuzhou, China


Total polysaccharide (i.e., GLP-UCE) was effectively isolated from the crude polysaccharide extract powder of Ganoderma lucidum by ultrasonic-circulating extraction, which was separated into three fractions (i.e., GLP-U40, GLP-U60, and GLP-U80) by ethanol fractional precipitation. The detection of antioxidant enzymes (GSH-Px, SOD) and oxidation metabolites (MDA, LF); liver function test of ALT, AST, and LDH; and western blot for antioxidant proteins of GSH-Px and MMP-2 showed that the GLP-UCE displayed a favorable in vivo antioxidant and hepatoprotective activities for reducing the oxidative damage in CCl4-hepatopathy SD rats. The GLP-UCE and its fractions were analyzed and compared by Fourier transform infrared (FT-IR), high-performance liquid chromatography, high-performance gel permeation chromatography, and antioxidant activity in vitro assay. These studies revealed that the fraction GLP-U80 exhibited stronger antioxidant activities in vitro than that of GLP-UCE and other fractions (p<< 0.01), which was homogeneous and heteropolysaccharide-rich in β-D-glucose with a weight-average molecular mass (Mw) of 1.05 × 104 g·mol–1 and composed of D-mannose, D-ribose, D-glucose, D-galactose, and L-fucose in a molecular ratio of 1:0.26:8.26:0.64:0.08.


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