Antimicrobial and Cytotoxic Activities of the Sulphur Shelf Medicinal Mushroom, Laetiporus sulphureus (Agaricomycetes), from Serbia
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Cyclohexane, dichloromethane, and methanol extracts of the medicinal mushroom Laetiporus sulphureus were tested for their antimicrobial, cytotoxic, and radical scavenging activities. Total polyphenol content was also determined. Regarding the amount of the phenolic compounds in the methanol extract, there were 14.1 +/- 0.6 mg gallic acid/g dry extract and a concentration of 0.66 +/- 0.15 mg/mL resulted in the removal of 50% of the DPPH radicals (half-maximal inhibitory concentration [IC50]) . The average minimum inhibitory concentrations (MICs) against a select panel of microorganisms were between 125 and 250 mu g/mL, and the methanolic extract significantly inhibited the growth of Staphylococcus aureus (MIC, 31.25 mu g/mL). Also, cyclohexane and dichloromethane extracts inhibited the growth of Helicobacter pylori (MIC, 62.5 mu g/mL). Cyclohexane and dichloromethane extracts showed higher antiproliferative action compared with the methanol extract. The lowest IC50 was induced on HeLa c...ells by dichloromethane extract (IC50,67.20 +/- 5.49 mu g/mL), followed by cyclohexane extract (IC50 75.91 +/- 1.57 mu g/mL). The tested cyclohexane and dichloromethane extracts possessed moderate antibacterial and significant cytotoxic activity against both malignant (HeLa and N87) and healthy (MRC5) cell lines. Methanol extracts exhibited promising anti-Helicobacter activity without cytotoxicity against N87 and MRC5 cell lines.
Source:International Journal of Medicinal Mushrooms, 2016, 18, 6, 469-476
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