Romanian Society of Pharmaceutical Sciences
 

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ANTIOXIDANT ACTIVITY, TOTAL PHENOLIC AND METALS CONTENTS OF LACTARIUS SALMONICOLOR (R. HEIM & LECLAIR)

DANIELA ELENA ZAVASTIN1, ANCA MIRON1*, SIMONA PETRONELA GHERMAN1, CRISTIAN MARIAN BOERESCU2, IULIANA GABRIELA BREABAN3*, CRISTINA MARIA GAVRILESCU4

1.“Grigore T. Popa” University of Medicine and Pharmacy, Faculty of Pharmacy, Iasi, Romania
2 .Centre Hospitalier Sainte-Marie de Rodez, France
3 .”Alexandru Ioan Cuza” University, Faculty of Geography and Geology, Iasi, Romania
4 .“Grigore T. Popa” University of Medicine and Pharmacy, Faculty of Medicine, Romania

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The mushroom Lactarius salmonicolor (R. Heim & Leclair) was investigated for its antioxidant potential, total phenolic and metal contents. The antioxidant activity was studied by 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-Azinobis(3- ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals scavenging, reducing power, ferrous ion chelating and 15- lipoxygenase inhibition assays. The total phenolic content was evaluated using the Folin-Ciocalteu method. The metals content was analysed by inductively coupled plasma mass spectrometry (ICP-MS). The ethanolic extract, having a total phenolic content of 11.47 ± 0.19 mg/g, showed a high 15-lipoxygenase inhibitory activity being only 3.5 times less active than (+)-catechin (EC50 = 226.67 ± 0.95 and 64.17 ± 0.15 μg/mL, respectively). The concentrations of As, Cd and Hg in the fruiting bodies were found to be 0.3 ± 0.0, 0.05 ± 0.00 and 0.14 ± 0.00 mg/kg, respectively. With respect to these metals, the consumption of 300 g fresh or 30 g dry fruiting bodies daily has no health risk for the consumer. L. salmonicolor fruiting bodies proved to be an important source of Ca (3607.98 ± 1.15 mg/kg), Mg (934.67 ± 1.07 mg/kg), Se (1.49 ± 0.11 mg/kg) and Zn (152.53 ± 1.05 mg/kg). The results are promising regarding a possible use of L. salmonicolor ethanolic extract in the food supplements industry.