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. 2020 Aug 19;58(6):2133–2147. doi: 10.1007/s13197-020-04723-9

Table 3.

Antioxidant and antibacterial activities of ethanol fraction isolated from Russula alatoreticula as represented by EC50 and MIC values (μg/ml) respectively

Parameters to detect bioactivity Russula alatoreticula Standard
Antioxidant activity
EC50 value Scavenging ability of DPPH radicals 785 ± 40a 7.45 ± 0.02b
Scavenging ability of ABTS radicals 1300 ± 32a 3.65 ± 0.02b
Chelating ability of ferrous ion 1500 ± 27a 2.54 ± 0.52b
Reducing power 2500 ± 37a 32.21 ± 6.91b
Total antioxidant activity (μg ascorbic acid equivalent/mg of dry extract) 5.45 ± 0.12 Not applicable
Antibacterial effect
Gram positive Listeria monocytogenes 226.5 ± 58.5a 4.68 ± 0.17b
Staphylococcus aureus 88.7 ± 20.22a 6.29 ± 0.16b
Bacillus subtilis 72.5 ± 23.33a 5.61 ± 0.01b
Gram negative Escherichia coli 156.23 ± 25.13a 5.41 ± 0.11b
Salmonella typhimurium 289 ± 15.36a 5.09 ± 0.03b
Klebsiella pneumoniae 1560 ± 45.68a 5.29 ± 0.14b

BHA was used as a standard in all antioxidant assays except chelating ability of ferrous ion and total antioxidant capacity methods where EDTA and ascorbic acid were considered as positive controls respectively. Streptomycin was used as a reference in antibacterial methods. In each row, dissimilar letters denote significant alterations between sample and standard (p < 0.05)