To confirm the applicability of crab apple, the composition and content of amino acids and minerals with ‘Fuji’ apple were measured. Apple and crab apple were extracted with water, 70% and 100% ethanol, respectively. The contents of polyphenols, flavonoids, and ascorbic acid, antioxidant activities of these extracts were measured. The amino acid composition of apples comprised a total of 17 amino acids. The total amino acid contents of apple and crab apple were 2,050.45 mg/kg and 900.05 mg/kg, respectively. For minerals, the total mineral content of apple and crab apple were 489.14 mg%, 529.77 mg%, respectively. The contents of polyphenols, flavonoids, and ascorbic acid of apple and crab apple extracts were highest in 70% ethanol extracts. The content of polyphenols, the crab apple extract, showed a generally higher content than the apple extract. The content of flavonoids, apple and crab apple extracts revealed no difference between extracts. The content of ascorbic acid, apple extract showed a generally higher content than the crab apple extract, but there was no significant difference between extracts. In the case of DPPH and ABTS radical scavenging abilities, 70% ethanol extract showed the highest antioxidant activity, and crab apple showed higher activity than apple extracts.

Abstract
서 론
재료 및 방법
    1. 실험 재료
    2. 구성아미노산 조성 분석
    3. 무기질 함량
    4. 항산화 성분
    5. 항산화 활성 측정
결과 및 고찰
    1. 사과 및 꽃사과의 구성 아미노산 조성과 함량
    2. 사과 및 꽃사과의 무기질 조성과 함량
    3. 항산화 성분
    4. 항산화 활성
요약 및 결론
감사의 글
References

• 이경행(한국교통대학교 식품영양학 전공 교수) | Kyung-Haeng Lee (Professor, Major in Food and Nutrition, Korea National University of Transportation, Chungju 27909, Korea) Corresponding author
• 유광원(한국교통대학교 식품영양학 전공 교수) | Kwang-Won Yu (Professor, Major in Food and Nutrition, Korea National University of Transportation, Chungju 27909, Korea)
• 배윤정(한국교통대학교 식품영양학 전공 부교수) | Yun-Jung Bae (Associate Professor, Major in Food and Nutrition, Korea National University of Transportation, Chungju 27909, Korea)
• 주가영(한국교통대학교 식품영양학 전공 학부생) | Ga-Young Joo (Student, Dept. of Food and Nutrition, Korea National University of Transportation, Chungju 27909, Korea)
• 김채영(한국교통대학교 식품영양학 전공 학부생) | Chae-Young Kim (Student, Dept. of Food and Nutrition, Korea National University of Transportation, Chungju 27909, Korea)