| 杀青工艺对杜仲叶抗氧化活性的影响 |
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| 引用本文： | 张强,苏印泉,苑子夜,朱铭强.杀青工艺对杜仲叶抗氧化活性的影响[J].北方园艺,2011(23):157-160. |
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| 作者姓名： | 张强 苏印泉 苑子夜 朱铭强 |
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| 作者单位： | 西北农林科技大学林学院,陕西杨凌,712100;西北农林科技大学林学院,陕西杨凌,712100;西北农林科技大学林学院,陕西杨凌,712100;西北农林科技大学林学院,陕西杨凌,712100 |
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| 基金项目： | 陕西省自然科学基金资助项目(2010JM3008) |
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| 摘 要： | 杜仲叶有较强的抗氧化活性,为了充分利用杜仲叶资源,以DPPH自由基法评价抗氧化活性,硝酸铝-亚硝酸钠比色法测定总黄酮含量,Folin-Ciocalteu法测定总酚含量,比较了微波、空气加热、蒸汽和炒制等4种杀青工艺对杜仲叶抗氧化活性以及黄酮和总酚含量的影响,并与自然阴干杜仲叶比较.结果表明:以短时间大功率微波处理,即800 W功率微波处理样品2.5 min,时间短易操作,能较好保留杜仲叶中的黄酮和总酚,对抗氧化活性影响较小,对杜仲叶外观破坏小,是较好的杀青工艺.
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| 关 键 词： | 杜仲 杀青 微波 抗氧化 |
Effects of De-enzyme Process on the Antioxidant Activity of Eucommia Leaves |
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| ZHANG Qiang
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SU Yin-quan
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YUAN Zi-ye
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ZHU Ming-qiang.Effects of De-enzyme Process on the Antioxidant Activity of Eucommia Leaves[J].Northern Horticulture,2011(23):157-160. |
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| Authors: | ZHANG Qiang SU Yin-quan YUAN Zi-ye ZHU Ming-qiang |
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| Institution: | ZHANG Qiang,SU Yin-quan,YUAN Zi-ye,ZHU Ming-qiang(College of Forestry,Northwest Agricultural and Forestry University,Yangling,Shaanxi 712100) |
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| Abstract: | Eucummia leaves present strong antioxidant activity.To reserve more antioxidant components in Eucommia leaves during the de-enzyme process,Eucommia leaves were processed by microwave treatment,steam,air heating and frying.The antioxidant activity,flavonoids and phenol contents of the Eucommia samples were determined to estimate the four methods.The results showed that the sample treated by microwave with high power for short time,that was 800 W power for 2.5 min,contained more flavonoids and phenols,and the ample also showed a strong antioxidant activity.Microwave treatment was a good process way for Eucommia leaves because it costed short time and reserve more active compounds.At the same time,it did not change the appearance of Eucommia leaves significantly. |
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| Keywords: | Eucommia De-enzyme microwave antioxidant |
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