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  • Title: Antioxidant Capacity and Total Phenolics Content of the Fruiting Bodies and Submerged Cultured Mycelia of Sixteen Higher Basidiomycetes Mushrooms from India.
    Author: Prasad R, Varshney VK, Harsh NS, Kumar M.
    Journal: Int J Med Mushrooms; 2015; 17(10):933-41. PubMed ID: 26756185.
    Abstract:
    The fruiting bodies and the submerged cultured mycelia of 16 higher Basidiomycetes mushrooms- Agaricus bisporus, Armillaria mellea, Auricularia auricula-judae, Ganoderma applanatum, G. lucidum, Laetiporus sulphureus, Lentinus tigrinus, Lycoperdon pyriforme, Phellinus linteus, Pleurotus ostreatus, P. sajor-caju, Polyporus arcularius, Russula brevipes, Schizophyllum commune, Sparassis crispa, and Spongipellis unicolor-from different taxonomic groups were examined for their antioxidant capacity (AOXC) and total phenolics content (TPC). Extraction of the freeze-dried and pulverized fruiting bodies and mycelia with methanol and water (8:2, v/v), followed by evaporation of the solvent under a vacuum, created their extracts, which were analyzed for their AOXC and TPC using a DPPH· scavenging assay and the Folin-Ciocalteu method, respectively. The fruiting bodies and the culture mycelia of all the mushroom species exhibited varied antioxidant capacity; however, the fruiting bodies had more potent DPPH· scavenging than the corresponding mycelia irrespective of the mushroom species, as evident by the effective concentrations of extract that scavenges 50% of DPPH· (EC50) of the former (0.56-1.24 mg mL-1) being lower than those of the latter (2.51-8.39 mg mL-1). TPC in the fruiting bodies (6.08-24.85 mg gallic acid equivalent [GAE] g-1) were higher than those in the mycelia (4.17-13.34 mg GAE g-1). AOXC of the fruiting bodies (r = -0.755) and the culture mycelia (r = -0.903) also was correlated to their TPC. Among the cultured mycelia, A. bisporus, A. mellea, L. tigrinus, P. ostreatus, and S. crispa were highly promising in terms of their highest TPC (10.55, 13.34, 11.00, 10.37, and 10.19 mg GAE g-1, respectively) and the lowest EC50 values (3.33, 2.85, 2.51, 3.65, and 3.17 mg mL-1, respectively) as they relate to the development of antioxidants.
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