This study was conducted to analyze the antioxidant and antidiabetic activities of acorns according to the types of Quercus serrata Thunb (QST) and Q. acutissima Carruther (QAC). The total polyphenol contents of the extracts from QST and QAC were 220.59 and 320.96 mg GAE/g, respectively. The content of total polyphenol of QAC was higher than that of QAC (p<0.001). DPPH (2,2 Diphenyl 1 picrylhydrazyl) radical scavenging activity, reducing power and superoxide dismutase (SOD)-like activity were increased in a concentration-dependent manner by both acorn extracts, and QAC showed high activity in all antioxidant experiments (p<0.05). The inhibitory activities of α-glucosidase and α-amylase were also increased in a concentration-dependent manner, and QAC showed higher inhibitory activity than QST (p<0.05). Our study indicates that QST and QAC are functional food materials with high antioxidant and antidiabetic activities. In addition, QAC has a higher physiological activity than QST.

Abstract
I. 서 론
II. 연구내용 및 방법
    1. 실험 재료
    2. 시료액 조제
    3. Total polyphenol contents 측정
    4. 항산화 활성
    5. 항당뇨 활성 측정
    6. 통계처리
III. 결과 및 고찰
    1. 수율 및 총 폴리페놀 함량
    2. 항산화 활성
    3. α-Glucosidase와 α-Amylase의 억제 활성
IV. 요약 및 결론
References

• 추지혜(공주대학교 외식상품학과) | Ji-Hye Chu (Department of Food Service Management and Nutrition, Kongju National University)
• 최진희(공주대학교 외식상품학과) | Jin-Hee Choi (Department of Food Service Management and Nutrition, Kongju National University) Corresponding author