Investigation of the Flavonoid Intake in a Daily Meal of the Kansai in the Middle-aged women

代表的な機能性成分であるフラボノイドの摂取量と健康とのかかわりを検討するうえで，日常的な食事からのフラボノイド摂取量を把握することは重要である。そこで関西に在住する中高年女性を対象として陰膳法による実測値とデータベースを用いた計算値の関連を検討し，フラボノイド摂取量，イソフラボン摂取量とも相関係数r=0.8以上を得た。次に，秤量法による食事調査結果からフラボノイドおよびイソフラボン摂取量を算出し，フラボノイドの平均摂取量47.4±31.8mg/day，36,9±35.0mg/dayを得た（±標準偏差）。主なフラボノイド摂取源はお茶飲料，主なイソフラボン摂取源は豆腐であった。The structural diversity of plant flavonoids, their wide distribution in foods, and variations in their content in a given food are some of the factors that contribute to the difficulty in estimating dietary consumption. The estimation of flavonoids intake in Japanese diet was the first step to be prevent of the coronary heart diseases and keep our health. Dietary survey was executed from 2002 to 2004 to 69 middle-aged women (51.3±11.4 years) to study intakes of flavonoid and isoflavone included in a daily meal of the Kansai in June. We have analyzed more than 100 kinds of foods with HPLC analysis to estimate flavonoid intake, and made the flavonoids data base. Compared the amount of flavonoids with HPLC analysis to the calculation value that used flavonoid database in 2002, the correlation coefficient became 0.8 or more. Therefore, it was indicated that the calculation value by the flavonoid data base was appropriate, and calculated the amount of flavonoid included in meal of 69 description people. In mean value ± standard deviation the flavonoid intake was 47.4±31.8mg/day and the Isoflavone intake was 36.9±35.0mg/day, and the flavonoid intake in a median was 42.8 mg/day and the Isoflavone intake was 28.5mg/day. Isoflavone intake was the almost same Japanese isoflavone intake obtained from other references. The main source of flavonoid was tea such as green tea and roasted tea. There was any intake of health food in our research. A significant relation was observed by neither the flavonoid intake nor the vegetable intake