| 脱脂麦胚提取物抗氧化活性的研究 |
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| 引用本文： | 连彩霞,朱科学,周惠明. 脱脂麦胚提取物抗氧化活性的研究[J]. 中国油脂, 2010, 35(3) |
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| 作者姓名： | 连彩霞 朱科学 周惠明 |
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| 作者单位： | 江南大学,食品学院,江苏,无锡214122 |
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| 基金项目： | 江苏省自然科学基金，高等学校博士学科点专项科研基金 |
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| 摘 要： | 麦胚是面粉生产的主要副产物之一,含有多种生理活性成分,极具开发前景。主要对比分析了脱脂麦胚6种溶剂提取物的抗氧化活性。实验结果表明:水、70%甲醇、70%乙醇、50%丙酮的提取率较高,6种脱脂麦胚提取物都具有一定的DPPH自由基清除能力和还原能力,且提取物质量浓度与抗氧化活性呈现一定的量效关系,其中70%甲醇提取物和甲醇提取物的DPPH清除能力较高,70%乙醇提取物的还原能力最强。另外,6种提取物中水提取物和50%丙酮提取物的总酚含量较高,并且提取物的抗氧化活性与其总酚含量之间未呈现正比关系。
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| 关 键 词： | 脱脂麦胚 提取物 抗氧化 总酚 |
Antioxidative activities of defatted wheat germ extracts |
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| LIAN Caixia,ZHU Kexue,ZHOU Huiming. Antioxidative activities of defatted wheat germ extracts[J]. China Oils and Fats, 2010, 35(3) |
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| Authors: | LIAN Caixia ZHU Kexue ZHOU Huiming |
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| Abstract: | Wheat germ is one of the main byproducts of wheat-milling industry,and it is a rich source of many bioactive compounds.The antioxidative activities of defatted wheat germ (DWG) extracts were studied.The results indicated that extraction efficiency of water,70% methanol,70% ethanol and 50% acetone were higher,and six extracts had certain activities to scavenge DPPH radical and reducing power with dose-dependent manner.Furthermore,70% methanol extract and methanol extract had strong scavenging activities on DPPH radical,and 70% ethanol extract presented the highest reducing power.In addition,total phenols content in water extract and 50% acetone extract were higher,and antioxidative activities of DWG extracts were not in proportion to total phenols content. |
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| Keywords: | defatted wheat germ extracts antioxidative activity total phenols |
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