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Antioxidant activity of various extracts from an edible mushroom Pleurotus eous

机译：食用菌侧耳的各种提取物的抗氧化活性

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摘要

Pleurotus eous is a pink edible oyster mushroom cultivated in Coimbatore. The aim of present study was to evaluate antioxidant potential of ethyl acetate, methanol, and hot water extracts from P. eous using various in vitro ROS/RNS generated chemical and biological models. Results demonstrated that the graded-dose (2–50 mg/mL) of various extracts markedly scavenged the DPPH, ABTS, and hydroxyl radicals, and showed metal chelating ability, reducing capacity in Fe3+/ferricyanide complex, and ferric reducing antioxidant power assays. In biological models, different extracts were found to inhibit lipid peroxidation in brain and liver homogenate. Total antioxidant activity was high in methanolic extract. Hot water extract showed higher amount of total phenol and methanolic extract showed higher amount of flavonoid as compared to other extracts. Based on EC50 values it can be concluded that the various extracts from P. eous were good in antioxidant properties with methanol and ethyl acetate extracts being more effective. The results of this study showed that various extracts could serve as natural antioxidants owing to their significant antioxidant activity.
机译：杏鲍菇是在哥印拜陀种植的一种粉红色食用牡蛎蘑菇。本研究的目的是使用各种体外ROS / RNS生成的化学和生物学模型，评估乳木果中乙酸乙酯，甲醇和热水提取物的抗氧化能力。结果表明，各种提取物的分级剂量（2–50 mg / mL）显着清除了DPPH，ABTS和羟基自由基，并显示出金属螯合能力，降低了Fe3 + /铁氰化物配合物的容量，并还原了三价铁。抗氧化能力测定。在生物学模型中，发现不同提取物可抑制脑和肝匀浆中的脂质过氧化。甲醇提取物中的总抗氧化剂活性很高。与其他提取物相比，热水提取物显示出更高的总酚含量，甲醇提取物显示出更高的类黄酮含量。根据EC50 值可以得出结论，乌头油菜的各种提取物具有良好的抗氧化性能，甲醇和乙酸乙酯提取物则更有效。这项研究的结果表明，各种提取物由于其显着的抗氧化活性，可以用作天然抗氧化剂。

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