Abstract

MUESES-MAFLA, ROBINSON-BYRON,  and  BENAVIDES-CALVACHE, OLGA-LUCIA,. Total polyphenols of Ganoderma lucidum cultivated in wastes of Pandala talaumanariñensis and Avena sativa. Rev.Bio.Agro [online]. 2022, vol.20, n.1, pp.18-26.  Epub Dec 30, 2021. ISSN 1692-3561.  https://doi.org/10.18684/bsaa.v20.n1.2022.1491.

Ganoderma lucidum is a medicinal fungus that has a worldwide demand due to its numerous bioactive components such as polyphenols, triterpenes, and polysaccharides, which have antioxidant potentials. This study assessed the total polyphenol content through the Folin-Ciocalteu method and analyzed structural functional groups using Fourier-transmform infrared spectroscopy (FTIR). Ethanolic and aqueous solutions were extracted from fruiting bodies of G. lucidum growing in lignocellulosic substrates of sawdust and straw obtained from Pandala talaumanariñensis and Avena sativa, respectively. The total polyphenol content was higher in the aqueous solutions (32,44 ± 0,7023 mg GAE/g), which would indicate that other bioactive compounds of G. lucidum can be extracted with hot water, enriching this solution. The IR spectra of G. lucidum showed absorption bands between the 3372,59 to 670,27 cm-1 range, which were similar to IR spectral information of the genus Ganoderma. These results demonstrate an interesting potential of G. lucidum as a source of natural antioxidants that can be used for the food and medicinal industry, given its total polyphenol content.

Keywords : Basidiomycetes; Antioxidant activity; Folin Ciocalteu; FTIR.

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