Article

Antioxidant Properties of Several Medicinal Mushrooms

Department of Food Science, National Chung-Hsing University, 250 Kuokuang Road, Taichung 402, Taiwan, Republic of China.
Journal of Agricultural and Food Chemistry (Impact Factor: 2.91). 10/2002; 50(21):6072-7. DOI: 10.1021/jf0201273
Source: PubMed

ABSTRACT

Three species of medicinal mushrooms are commercially available in Taiwan, namely, Ganoderma lucidum (Ling-chih), Ganoderma tsugae (Sung-shan-ling-chih), and Coriolus versicolor (Yun-chih). Methanolic extracts were prepared from these medicinal mushrooms and their antioxidant properties studied. At 0.6 mg/mL, G. lucidum, G. lucidum antler, and G. tsugae showed an excellent antioxidant activity (2.30-6.41% of lipid peroxidation), whereas C. versicolor showed only 58.56%. At 4 mg/mL, reducing powers were in the order G. tsugae (2.38) approximately G. lucidum antler (2.28) > G. lucidum (1.62) > C. versicolor (0.79). At 0.64 mg/mL, scavenging effects on the 1,1-diphenyl-2-picrylhydrazyl radical were 67.6-74.4% for Ganoderma and 24.6% for C. versicolor. The scavenging effect of methanolic extracts from G. lucidum and G. lucidum antler on hydroxyl radical was the highest (51.2 and 52.6%) at 16 mg/mL, respectively. At 2.4 mg/mL, chelating effects on ferrous ion were in the order G. lucidum antler (67.7%) > G. lucidum (55.5%) > G. tsugae (44.8%) > C. versicolor (13.2%). Total phenols were the major naturally occurring antioxidant components found in methanolic extracts from medicinal mushrooms. Overall, G. lucidum and G. tsugae were higher in antioxidant activity, reducing power, scavenging and chelating abilities, and total phenol content.

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Available from: Jeng-Leun Mau, Feb 13, 2014
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    • "Modern pharmaceutical research shows that G. lucidum polysaccharide (GLP) has several physiological and health effects including strong antioxidant activities [18]. In addition its therapeutic effects, the Ethanolic extracts from G. lucidum and G. tsugae also possess antioxidant abilities [19]. Various components of G. lucidum, in particular polysaccharides and triterpenoids, show high antioxidant activity in vitro [20] [21] [22] [23] [24] [25]. "
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    ABSTRACT: To study the isolation, structural characterization and antioxidant activities of polysaccharide from the medicinal mushroom G.lucidum. In this study structural characterization of Ganoderma lucidum polysaccharides was conducted by Fourier Transform Infrared spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM) analyses. Antioxidant activities of Ganoderma lucidum polysaccharides was measured by 1,1–diphenyl–2–icryl-hydrazyl (DPPH-), Hydroxyl radical scavenging assay (HO-), superoxide anion (O-) radical scavenging assay and Ferrous ion (Fe 2+) chelating assay. Scavenging effect of G. lucidum polysaccharides and ascorbic acid on the DPPH radical scavenging, Hydroxyl radical scavenging, superoxide anion radical scavenging and Ferrous ion (Fe 2+) chelating radical scavenging-dependently increased and was 30.45% and 85.40%, 35.70% and 90.50%, 49.68% and 90.10%, 32.69% and 80.26% at the dose of 4 mg/ml respectively. The FT-IR spectra revealed the general characteristic absorbance peaks of the GLP. The SEM image demonstrated surface features of the GLP. This study suggests that the Ganoderma lucidum polysaccharides could potentially be used as natural antioxidants.
    Full-text · Article · Oct 2015
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    • "A number of medicinal benefits have been ascribed to consumption of mushrooms including the treatment of chronic and degenerative diseases, obesity and cardiovascular disorders (Kavishree et al., 2009; Ribeiro et al., 2008). Likewise, a wide spectrum of biological activities of mushroom species/taxa such as anti-tumor, anti-microbial and anti-oxidant has been investigated (Mau et al., 2002; Wasser and Weis, 1999; Barros et al., 2007; Lindequist et al., 2005). "
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    ABSTRACT: Mushrooms have been recognized as important food items due to their high nutritional and medicinal value. The present work quantifies and compares the fatty acids composition among eleven mushroom species (Auricularia auricular-judae, Collybia dryophila, Rammulina ve/utipes, Helvella lacunose, Polyporus squamosus, Rhizopogon roseolus, Russula albonigra, Russula delica, Sparassis crispa, collinitus and Volvariella gloiocephala) harvested from Turkey. The lipid contents of the mushrooms varied from 0.13% (Auricularla auricula-judae) to 2.90% (Sparassis crispa). A total of 14 fatty acids were identified and quantified by gas chromatography in the selected mushrooms species with linoleic (13.17 to 79.41%), oleic (0.71 to 55.07%) and palmitic (8.95 to 30.84%) acids as the major components in the tested mushrooms species. The amount of total saturated fatty acids (SFAs), total monounsaturated FAs (MUFAs) and total polyunsaturated FAs (PUFAs) ranged from 13.97 to 59.44%, 0.94 to 55.44% and 13.54 to 79.93%, respectively. Moreover, the mushrooms tested can be explored as a rich dietary source of essential fatty acids (13.34-79.76%) for human nutrition.
    Full-text · Article · Jun 2015 · Emirates Journal of Food and Agriculture
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    • "Edible and medicinal mushrooms are rich in dietary fiber, nutrients, and other compounds known to be physiologically beneficial to humans. These mushrooms are important sources of natural antioxidants and have become a very active domain of research in recent years [18] [19] [20] [21]. The antioxidative potentials of mushrooms are attributed to such chemical constituents as phenolic compounds, carotenoids, organic acids, polyketides, and peptides [20] [21]. "

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