Toward the Antioxidant and Chemical Characterization of Mycorrhizal Mushrooms from Northeast Portugal

Abstract

Chemical characterization of 12 mycorrhizal mushrooms was achieved. They are sources of nutraceuticals, such as sugars and fatty acids, and contain bioactive compounds, such as vitamins and phenolic acids. Edible species can be incorporated in diets as sources of antioxidants, while nonedible species can be explored as sources of bioactive metabolites.

Antioxidant properties and phenolic profile of the most widely appreciated cultivated mushrooms: A comparative study between in vivo and in vitro samples

“…Successive dilutions were made from the stock solution and submitted to in vitro assays already described by the authors (Reis et al, 2011) to evaluate the antioxidant activity of the samples. The sample concentrations providing 50% of antioxidant activity or 0.5 of absorbance (EC 50 ) were calculated from the graphs of antioxidant activity percentages (DPPH, β-carotene/linoleate and TBARS assays) or absorbance at 690 nm (reducing power assay) against sample concentrations.…”

“…Hence, antioxidant supplements, or natural products containing bioactive compounds, may be used to help reduce oxidative damage to the human body (Kanter, 1998). Indeed, natural products with antioxidant activity, in particular mushrooms, are used to aid the endogenous protective system, increasing interest in the antioxidative role of functional foods or nutraceutical products Jayakumar et al, 2011;Barros et al, 2008;Reis et al, 2011).…”

Study on chemical, bioactive and food preserving properties ofLaetiporus sulphureus(Bull.: Fr.) Murr.

“…The mixture was le to stand for 30 min in darkness, and the absorption was measured at 515 nm by an ELX800 Microplate Reader (Bio-Tek Instruments). 20 The radical scavenging activity (RSA) was calculated as a percentage of DPPH discoloration using the equation % RSA ¼ [(ADPPH À AS)/ADPPH] Â 100, where AS is the absorbance of the solution containing the sample, and ADPPH is the absorbance of the DPPH solution.…”

Medicinally important and edible species of genus Lactarius from Garhwal Himalaya, India

“…volemus has great medicinal value. It is a source of nutraceuticals, such as sugars, fatty acids and contains bioactive compounds like vitamins and phenolic acids (Reis et al 2011). It is also reported to be active against Escherichia coli.…”