Antioxidant Properties of the Wild Edible Mushroom Lactarius salmonicolor

Abstract

The fruiting bodies of the edible mushroom Lactarius salmonicolor (Russulaceae) collected from the wild were extracted with solvents of increasing polarity and evaluated for their antioxidant capacity by 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging method. Additionally, their total phenolic content was evaluated by a modification of the Folin-Ciocalteu method. The methanol extract showed the most potent radical scavenging activity (inhibition of 36.7% of DPPH at 3 mg/mL and 6.8 mg gallic acid equivalents/g of dry extract), and was further fractionated. Total phenolics and antioxidant activity found to be significant higher in the fractions of increased polarity. The phytochemical investigation which was performed by chromatographic and spectrometric techniques led to the isolation of nine compounds from the methanol extract and the identification of 10 fatty acids and fatty acids esters from the dichloromethane extract. Evaluation of the antioxidant activity of isolated compounds showed p-hydroxybenzoic acid (4) to be the most active. Among the various compounds found, the rare azulene type 7-acetyl-4-methylazulene-1-carboxylic acid (1) has been identified, which had been isolated only once before from L. deliciosus. Therefore, this compound seems to have some chemotaxonomic value for Lactrarius species exuding orange to red milk.

Differentiation of Eight Commercial Mushrooms by Electronic Nose and Gas Chromatography-Mass Spectrometry

“…An azulene-type compound was identified in C. comatus. To our best knowledge, this compound has only been isolated previously in the mushroom of Lactarius salmonicolor [44]. DL-Menthol with strong inhibitory activity against fungi of Trichoderma [45] was also detected in the tested mushrooms.…”

Cerebrosides and Steroids from the Edible Mushroom Meripilus giganteus with Antioxidant Potential

“…Previous studies revealed that compound 3 had no ORAC and lipid peroxide inhibiting property, but exhibited a slight effect in 2,2,1-diphenyl-1-picrylhydrazyl (DPPH) and superoxide dismutase (SOD)-like activity assays [27,28]. Wei et al investigated the antioxidant activity of compounds isolated from the medicinal mushroom Hericium erinaceus and experienced notable effects for cerevisterol (6) in the ORAC assay [29], while Athanasakis et al found moderate DPPH activity for 6 [30]. In another study cerevisterol (6) identified in the mycelia of H. erinaceus proved to possess considerable activity in the DPPH assay [31].…”

Treatment of streptozotocin-induced diabetic rats with Castanea sativa and Lactarius deterrimus extracts decreases liver damage by initiating activation of the Akt prosurvival kinase

“…Lactarius deterrimus, an edible mushroom from the family Russulaceae, mainly grows in northern, northeastern and central Europe. Lactarius species represent a prospective source of natural immunostimulatory constituents with antitumor, antiviral and antimicrobial potential and activities [12,13].…”