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山核桃叶提取物的抗氧化活性比较
引用本文:何志平,庞林江,茅林春,孙佳丽.山核桃叶提取物的抗氧化活性比较[J].食品与机械,2011,27(3).
作者姓名:何志平  庞林江  茅林春  孙佳丽
作者单位:1. 浙江农林大学农业与食品科学学院,浙江杭州311300;浙江大学生物系统工程与食品科学学院,浙江杭州310029
2. 浙江农林大学农业与食品科学学院,浙江杭州,311300
3. 浙江大学生物系统工程与食品科学学院,浙江杭州,310029
摘    要:采用1,1-二苯基-2-三硝基苯肼(DPPH)自由基清除能力、还原能力、超氧阴离子清除能力评价不同山核桃叶提取液的抗氧化活性,采用F0lin酚法测定提取液的总酚质量浓度.结果表明,山核桃叶提取物具有较强的抗氧化活性,并以甲醇和蒸馏水提取物的抗氧化活性最强;60%甲醇溶液的提取物具有最高的DPPH自由基清除能力,总酚得率最高,达到(10.63±0.31)mg/g山核桃叶.

关 键 词:山核桃叶  抗氧化  总酚  提取液

Antioxidant activities in the extracts from Chinese hickory (carya cathayensis sarg.) leaves
HE Zhi-ping,PANG Lin-jiang,MAO Lin-chun,SUN Jia-li.Antioxidant activities in the extracts from Chinese hickory (carya cathayensis sarg.) leaves[J].Food and Machinery,2011,27(3).
Authors:HE Zhi-ping  PANG Lin-jiang  MAO Lin-chun  SUN Jia-li
Affiliation:HE Zhi-ping1,2 PANG Lin-jiang1 MAO Lin-chun2 SUN Jia-li1 (1.School of Agriculture and Food Science,Zhejiang A & F University,Hangzhou,Zhejiang 311300,China,2.College of Biosystem Engineering and Food Science,Zhejiang University,Zhejiang 310029,China)
Abstract:The effect of different solvent on antioxidant activities and total phenolic content of extracts of Chinese hickory leaves was investigated in this work.Several methods for determining antioxidant activities of the samples were employed included DPPH radical scavenging activity,reducing power and superoxide anion scavenging activity.The total phenolic was determined by folin phenol agent.The results showed that all extracts provided various antioxidant activities and methanol and water extracts possessed th...
Keywords:Chinese hickory leaves  antioxidant  total phenolic  extract  
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