山梨県産果樹および野菜作物葉のポリフェノール含量とDPPHラジカル消去活性

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  • Polyphenol Contents and DPPH Radical Scavenging Activities of Leaves of Fruit and Vegetable Crops Grown in Yamanashi Prefecture
  • ヤマナシケンサン カジュ オヨビ ヤサイ サクモツ ヨウ ノ ポリフェノール ガンリョウ ト DPPH ラジカル ショウキョ カッセイ

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<p>　We investigated the polyphenol contents and DPPH radical scavenging activities of the leaves of agricultural products in Yamanashi Prefecture. The average polyphenol content in the leaves of fruit crops was 50.0mg/g of freeze-dry matter, which was 2.8 times that in the leaves of vegetable crops (17.9mg/g of freeze-dry matter). The leaves showing comparatively high DPPH radical scavenging activities among the leaves of fruit crops were persimmon, grape and plum leaves, and those among the leaves of vegetable crops were udo, azuki and burdock leaves. The correlation coefficients between polyphenol contents and DPPH radical scavenging activities were 0.3881 for the leaves of vegetable crops and 0.6951 for the leaves of fruit crops. It was found that there is no correlation for the leaves of vegetable crops, and a significant correlation for the leaves of fruit crops.</p>

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