| 不同浓度乙醇对桦褐孔菌提取物抗氧化活性的影响 |
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| 引用本文： | 陶令霞,王浩,张泽生,常慧萍,谷延泽.不同浓度乙醇对桦褐孔菌提取物抗氧化活性的影响[J].河南农业科学,2008(8). |
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| 作者姓名： | 陶令霞 王浩 张泽生 常慧萍 谷延泽 |
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| 作者单位： | 1. 濮阳职业技术学院,生物工程系,河南,濮阳,457000
2. 天津科技大学,食品工程与生物技术学院,天津市营养与食品安全重点实验室,天津,300457 |
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| 摘 要： | 以样品的总还原力、抗氧化能力、DPPH自由基清除能力为评价指标,研究了不同浓度的乙醇对桦褐孔菌提取物抗氧化活性的影响。结果表明:当乙醇浓度为65%时,桦褐孔菌提取物的抗氧化活性较强,其多酚含量和总还原力分别为(12.04±0.53)mg/g、(124.56±2.81)mg/g(维生素C相当量),FRAP值为(1.42±0.04)mmol/g(FeSO4.7 H2O相当量)。提取物浓度为400μg/mL时,DPPH自由基清除率为(78.05±3.41)%。
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| 关 键 词： | 乙醇浓度 桦褐孔菌提取物 抗氧化活性 |
Study on Evaluation of Anti-oxidant Activity of Inonqqus obliquus Extractions with Different Ethanol Concentration |
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| TAO Ling-xia,WANG Hao,ZHANG Ze-sheng,CHANG Hui-ping,GU Yan-ze.Study on Evaluation of Anti-oxidant Activity of Inonqqus obliquus Extractions with Different Ethanol Concentration[J].Journal of Henan Agricultural Sciences,2008(8). |
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| Authors: | TAO Ling-xia WANG Hao ZHANG Ze-sheng CHANG Hui-ping GU Yan-ze |
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| Abstract: | The effects of different ethanol concentration on anti-oxidant activity of Inonqqus obliquus extractions were studied by evaluating the reducing power,FRAP value and DPPH rad-ical scavenging capacity.The results indicated that the anti-oxidant activity of extractions with 65% ethanol concentration was better than the others's.Polyphenol concentration and the reducing power,FRAP value and DPPH rad-ical scavenging capacity of extraction with 400 μg/mL concentration were(12.04±0.53)mg/g,(124.56±2.81) mg/g sample(Vc equivalents),(1.42±0.04) mmol/g sample(FeSO4·7H2O equivalents)and(78.05±3.41)%,respectively. |
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| Keywords: | Ethanol concentration Inonqqus obliquus extractions Anti-oxidant activity |
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