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首页> 外文会议>International Conference on Advanced Materials and Energy Sustainability >Flavone content and antioxidant activities of ethanol extract from leaves of dendrocalamus hamiltonii
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Flavone content and antioxidant activities of ethanol extract from leaves of dendrocalamus hamiltonii

机译：乙醇含量与乙醇提取物的含乙醇提取物哈米尔顿岛叶片含量及抗氧化活性

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In this paper, the 80% ethanol extract from the leaves of Dendrocalamus hamiltonii were divided into four fractions of petroleum ether extract, chloroform extract, ethyl acetate extract and water extract. These were used to determine the flavone content using rutin standards and colorimetry of NaNO_2- Al (NO_3)_3 at 510 nm. The regression equation of rutin standard working curve is established as Y=0.1045X+0.0179 (R_2=0.9986). Free radical scavenging activities of chloroform extract and ethyl acetate extract were measured with the DPPH- method. The experimental results indicated that the flavone contents of petroleum ether extract, chloroform extract, ethyl acetate extract and water extract are 5.60%, 15.38%, 9.16% and 1.42% respectively. The DPPH- IC50 scavenging value of chloroform extract and ethyl acetate extract are 0.21 mg/mL and 0.13 mg/mL respectively. The results demonstrate that the flavone content of the chloroform extract and ethyl acetate extract is higher than that of petroleum ether extract and water extract; and the DPPH- free radical scavenging activities of ethyl acetate extract is greater than that of the chloroform extract.
机译：本文中，将80％乙醇提取物从DENDROCALAMUS HAMILTONII的叶片分为四个分数的石油醚提取物，氯仿提取物，乙酸乙酯提取物和水提取物。这些用于使用510nm的芦丁标准品和比色法测定黄酮含量和纳米_2-α（NO_3）_3的比色。 Rutin标准工作曲线的回归方程建立为y = 0.1045x + 0.0179（R_2 = 0.9986）。用DPPH方法测量氯仿提取物和乙酸乙酯提取物的自由基清除活性。实验结果表明石油醚提取物，氯仿提取物，乙酸乙酯提取物和水提取物的黄酮含量分别为5.60％，15.38％，9.16％和1.42％。氯仿提取物和乙酸乙酯提取物的DPPH-IC50清除值分别为0.21mg / ml和0.13mg / mL。结果表明，氯仿提取物和乙酸乙酯提取物的黄酮含量高于石油醚提取物和水提取物的黄酮含量;乙酸乙酯提取物的自由基自由基清除活性大于氯仿提取物的​​溶液。

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