Craterellus cornucopioides Edible Mushroom as Source of Biologically Active Compounds

© The Author(s) 2019 Article reuse guidelines: sagepub.com/journals-permissions Here we determined the phenolic compounds and antioxidant, antimicrobial, genotoxic, and anticancer potential of edible mushrooms Craterellus cornucopioides. The phytochemical analysis was evaluated using high-performance liquid chromatography. Antioxidant activity was evaluated by free radical scavenging, superoxide anion scavenging, and reducing power. Craterellus cornucopioides extract had potent antioxidant activity. Further, the antimicrobial potential was determined by a microdilution method, where minimum inhibitory concentration values ranged from 0.1 to 10 mg/mL. Genotoxic potential was determined by cytokinesis block micronucleus test. The separate treatment did not show genotoxic effect, whereas the combined treatment with mitomycin C significantly reduced the micronuclei frequency in a dose-dependent manner. The highest concentration significantly reduced nuclear division index in comparison to untreated human peripheral blood lymphocytes, whereas in combined treatment, the extract did not significantly affect this parameter. Finally, the cytotoxic activity was tested using microculture tetrazolium test where measured IC50 values ranged from 65.5 to 131.7 μg/mL

Investigation of biological activities and secondary metabolites of hydnum repandum acetone extract

© 2019, Romanian Society for Pharmaceutical Sciences. All rights reserved. This study aimed to evaluate the biological activities and polyphenolic contents of the acetone extract of H. repandum mushroom. Polyphenolic compounds were evaluated by high-performance liquid chromatography (HPLC). The antioxidant activity was assessed by radical scavenging activity assays and reducing power. The antimicrobial activity was established based on the values of the minimum inhibitory concentration (MIC) using microdilution method. Cytotoxic activity was determined by 3-4,5-dimethylthiazol-2-yl-2,5-diphenyltetrazolium bromide (MTT). The genotoxic and antimutagenic activities were tested using cytokinesis block micronucleus (CBMN) assay on human peripheral blood lymphocytes in vitro. Among the determined polyphenolic compounds, ferulic acid and quercetin were mostly found. The extract showed high free radical scavenging activity, while the reducing power was less emphasized and concentration-dependent. The MIC fluctuated in a range of 0.009-10 mg/mL. The cytotoxic activity (based on IC50) ranged from 116.5 to 158.33 µg/mL, when HeLa cells were the most sensitive. The highest tested concentrations of the extract showed significant genotoxic activity, while against mitomycin C, the extract caused protective activity. The results indicated that H. repandum acetone extract contained secondary metabolites which showed biological activities such as antioxidant, antimicrobial, cytotoxic, genotoxic and protective against chemotherapeutics, indicating that their inclusion in nutrition could be of great importance in the prevention and treatment of various pathological conditions

Evaluation of biological activities of acetone extract of the mushroom leccinum scabrum

Bioactivity of acetone extract of Leccinum scabrum was evaluated. Antioxidant activity was evaluated by free radical scavenging activity, reducing power and determination of total phenolic content. The microdilution plate method was used to detect antimicrobial activity. Cytotoxic activity was tested by MTT assay. Genotoxic potential was evaluated by comet assay. Results showed a stronger free radical scavenging activity, but the reducing power was less pronounced. The total content of phenols in the extract was 14.91 µg PE/mg. The minimum inhibitory concentration related to the tested microorganisms fluctuated in the range 0.039-10 mg/mL. The most sensitive was Bacillus cereus. A strong cytotoxic activity was revealed with IC50 values ranging between 73.64 and 200.00 µg/mL, among which HeLa was the most sensitive. Results showed that the extract was not genotoxic and it decreased the H2O2-induced GDI values in comparison to the positive control. L. scabrum possesses bioactivities such as antioxidant, antimicrobial, cytotoxic, no genotoxic and protective against H2O2, and in the highest tested concentration it showed a synergistic activity

Cytotoxic and Antimicrobial Activity of Dehydrozingerone based Cyclopropyl Derivatives

A small series of 1-acetyl-2-(4-alkoxy-3-methoxyphenyl)cyclopropanes was prepared, starting from dehydrozingerone (4-(4-hydroxy-3-methoxyphenyl)-3-buten-2-one) and its O-alkyl derivatives. Their microbiological activities toward some strains of bacteria and fungi were tested, as well as their in vitro cytotoxic activity against some cancer cell lines (HeLa, LS174 and A549). All synthesized compounds showed significant antimicrobial activity and expressed cytotoxic activity against tested carcinoma cell lines, but they showed no significant influence on normal cell line (MRC5). Butyl derivative is the most active on HeLa cells (IC50 = 8.63 m), while benzyl one is active against LS174 and A549 cell lines (IC50 = 10.17 and 12.15 m, respectively)