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. 2013:2013:313905.
doi: 10.1155/2013/313905. Epub 2012 Dec 30.

Antioxidant capacity and the correlation with major phenolic compounds, anthocyanin, and tocopherol content in various extracts from the wild edible Boletus edulis mushroom

Emanuel Vamanu  1 , Sultana Nita
Affiliations

Antioxidant capacity and the correlation with major phenolic compounds, anthocyanin, and tocopherol content in various extracts from the wild edible Boletus edulis mushroom

Emanuel Vamanu et al. Biomed Res Int. 2013.

Abstract

Boletus edulis is a wild edible mushroom habitually consumed by rural populations. Ethanolic and methanolic extracts was obtained in cold and hot water from dried fruit bodies. The antioxidant activity of freeze-dried extracts from B. edulis were investigated using free radicals scavenging activity, reducing power, metal chelating effect, inhibition of lipid peroxidation, and the identification of antioxidant compounds. The levels of different compounds with antioxidant properties were higher in alcoholic extracts compared with aqueous extracts. Rosmarinic acid was the major phenolic compound, it being identified in a concentration between 7 ± 0.23 and 56 ± 0.15 mg/100 g extract. A positive correlation between the content of total phenols, flavonoids, anthocyanins, and tocopherols, and the antioxidant capacity of the extracts was determined. The results showed that the ethanolic extract of Romanian wild mushroom B. edulis represents a natural source of functional compounds.

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Figures

Figure 1
Figure 1
DPPH radical scavenging activity of Boletus edulis extracts.
Figure 2
Figure 2
ABTS radical scavenging activity of Boletus edulis extracts.
Figure 3
Figure 3
Reducing power of Boletus edulis extracts.
Figure 4
Figure 4
Chelating effect of Boletus edulis extracts.
Figure 5
Figure 5
Inhibition of lipid peroxidation of Boletus edulis extracts.
Figure 6
Figure 6
Nitric oxide radical scavenging activity of Boletus edulis extracts.
Figure 7
Figure 7
Hydroxyl radical scavenging activity of Boletus edulis extracts.
Figure 8
Figure 8
Chromatogram of rosmarinic acid: ethanolic extract.
Figure 9
Figure 9
Chromatogram of tocopherols (α-, δ-, and γ-tocopherol): ethanolic extract.
See this image and copyright information in PMC

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