Hokkaido has the highest harvest of fruitlets such as seaberry, haskap and aronia in Japan. Haskap and raspberry are native to Hokkaido, but blueberry, aronia and seaberry were introduced from abroad in the middle of the 20th century. The functional components of these fruits, such as polyphenols, are now attracting attention and their production is increasing. The Education and Research Center for Antioxidant Function has been analyzing and studying the antioxidant function of food materials

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... oduced in Hokkaido, and has revealed that many fruitlets have high antioxidant value. I will introduce the attractiveness of the antioxidant function of various fruitlets in Hokkaido such as seaberry, haskap, aronia.