Biochemical characterization and bioactivity of methanolic and acetonic extracts of Laetiporus sulphureus basidiocarps

In the present investigation methanol and acetone extracts of basidiocarps of mushrooms Laetiporus sulphureus and Meripilus giganteus were evaluated for their antimicrobial, cytotoxic and antioxidant/prooxidant effects. The antimicrobial potential was determined by the microdilution method against ten microorganisms. Cytotoxic effects were evaluated by MTT test, while changes of the redox status parameters (superoxide anion radical, nitrites and reduced glutathione) were determined spectrophotometrically on a human colorectal cancer cell line and human health fibroblasts cells. The results were measured 24 and 72 h after the treatment. Tested extracts exhibited moderate antimicrobial activity with MIC values from 0.004 to 20 mg/mL. The maximum antimicrobial activity was found in the methanol extracts of the M. giganteus against Bacillus subtilis, which was better than positive control. The acetone extract of M. giganteus with IC5072h = 13.36 μg/mL showed significant cytotoxic effect with strong cell selectivity (selectivity index = 37.42) against cancer human colorectal cancer cells. The tested extracts, especially M. giganteus acetone extract, induced an increase in oxidative stress parameters in tested cell lines, but significantly heightened it in human colorectal cancer cells. The obtained results suggest that these extracts, especially M. giganteus acetone extract, can be proposed as a novel source of nutraceuticals and pharmaceuticals.

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Analysis of the Chemical and Medicinal Properties of Armillaria ostoyae (Agaricomycetes) Extracts and the Presence of Heavy Metals in Dry Basidiocarps

Petrovic,

Tosti,

Srbljak

et al. 2024

Int J Med Mushrooms

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We investigated the chemical and medicinal properties of methanolic and acetonic extracts of Armillaria ostoyae and the presence of heavy metals in its dry basidiocarps. The chemical content of extracts was analyzed with the HPLC-DAD-MS/MS method. According to our results, the most abundant mineral was potassium; the most abundant organic acid was malic acid; the most abundant carbohydrate was fructose, and the most abundant polyphenol was chlorogenic acid. The antimicrobial potential was evaluated using the microdilution assay, and the results ranged from 0.62 to 20 mg/mL. Antioxidant potential was studied by DPPH [half-maximal inhibitory concentration (IC50) of the methanolic extract was 619.67 μg/mL and of the acetonic extract was 533.65 μg/mL] and reducing power assays (the results ranged from 0.025 to 0.078 μg/mL). Total phenolic content was presented as gallic acid equivalent (methanolic extract, 6.12 mg GAE/g; acetonic extract, 3.99 mg GAE/g). The antidiabetic potential was explored by applying the α-amylase (the results ranged from 39.62 to 44.33%) and α-glucosidase assays (the results were in the range of 0.27-2.51%). The neuroprotective activity was asserted by the acetylcholinesterase inhibition assay (the results were in the range of 3.06-6.09%). The cytotoxic potential was investigated using the microtetrazolium assay, and the IC50 values ranged from 221.96 to > 400 μg/mL. Heavy metal content of the dry basidiocarps was evaluated using the AAS method and iron was the most abundant metal. A. ostoyae is a conditionally edible mushroom, which was not studied thoroughly before, thus this research will provide valuable knowledge about this species.

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Biochemical characterization and bioactivity of methanolic and acetonic extracts of Laetiporus sulphureus basidiocarps

Cited by 3 publications

References 60 publications

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Bioactivities and Medicinal Value of the Fruiting Body Extracts of Laetiporus sulphureus and Meripilus giganteus Polypore Mushrooms (Agaricomycetes)

Analysis of the Chemical and Medicinal Properties of Armillaria ostoyae (Agaricomycetes) Extracts and the Presence of Heavy Metals in Dry Basidiocarps

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