Evaluation for Anti-oxidant Activities of Prunus sp. Using Oxygen Radical Absorbance Capacity

  • Sato Akiko
    National Agriculture and Food Research Organization, National Food Research Institute Yamanashi Fruit Tree Experiment Station
  • Watanabe Jun
    National Agriculture and Food Research Organization, National Food Research Institute
  • Goto Masao
    National Agriculture and Food Research Organization, National Food Research Institute
  • Ishikawa-Takano Yuko
    National Agriculture and Food Research Organization, National Food Research Institute

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Other Title
  • Oxygen radical absorbance capacity法によるスモモの抗酸化活性評価
  • Oxygen radical absorbance capacityホウ ニ ヨル スモモ ノ コウサンカ カッセイ ヒョウカ

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Antioxidant activities for 38 cultivars/selections of plum (Prunus sp.) were evaluated. Freeze-dried and ground fruits were sequentially extracted with hexane : dichloromethane (1 : 1) and acetone : water : acetic acid (70 : 29.5 : 0.5, AWA). Using AWA extracts, the antioxidant activities were measured by oxygen radical absorbance capacity (ORAC) and diphenylpycrillydrazyl (DPPH) radical scavenging activity assays. Total polyphenol content was measured by the Folin-Ciocalteu method. The ORAC values of Japanese plum (P. salicina) and Domestica plum (P. domestica) were 2.49-7.06 and 1.53-5.71mmol Trolox equivalent per 100g fresh weight, respectively. These ORAC values showed positive correlation with DPPH radical scavenging activity and total polyphenol content.

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