The aqueous extracts of mycelium (MAE) and basidioma (BAE) of the mushroom Pleurotus pulmonarius (Fr.) Quél. were compared for their chemical composition, phenolic compounds identified using HPLC and antioxidant activities. The MAE contained 66.1 μg of gallic acid, 27.0 μg of ferulic acid and 217 μg of caffeic acid/g dry weight (dw). In addition, 626 μg of gallic acid, 347 μg of caffeic acid, 53.0 μg of vanillic acid and 25.4 μg of ρ-coumaric acid were found in BAE/g dw. The levels of soluble proteins, soluble carbohydrates and free amino acids were higher in the BAE. The MAE of P. pulmonarius were efficient in chelating ferrous ions (EC₅₀ of 1.81 mg dw/mL). The EC₅₀ for DPPH and ABTS radicals were 0.51 and 0.03 mg dw/mL, respectively, showing high antioxidant capacity. The results of this study showed that mycelium and basidioma of P. pulmonarius have the potential to be used as sources of antioxidant compounds and nutrients.

中文翻译：

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食用菌侧耳菌丝体和基底瘤水提物的比较：化学组成和抗氧化性分析。

蘑菇侧耳菇菌丝（Fr.）Quél的菌丝体（MAE）和basidioma（BAE）的水提物。比较了它们的化学组成，使用HPLC确定的酚类化合物和抗氧化剂活性。MAE含66.1μg没食子酸，27.0μg阿魏酸和217μg咖啡酸/ g干重（dw）。此外，在BAE / g dw中发现了626μg没食子酸，347μg咖啡酸，53.0μg香草酸和25.4μg对香豆酸。BAE中可溶性蛋白质，可溶性碳水化合物和游离氨基酸的含量较高。肺假单胞菌的MAE能有效螯合亚铁离子（EC ₅₀为1.81 mg dw / mL）。EC ₅₀DPPH和ABTS的自由基分别为0.51和0.03 mg dw / mL，显示出较高的抗氧化能力。这项研究的结果表明，肺假单胞菌的菌丝体和basidioma有潜力用作抗氧化剂化合物和营养物质的来源。