The present study were conducted to determine physiological activities and antioxidant effects [2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, 2,2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical scavenging activity, reducing power, Ferric Reducing Antioxidant Power (FRAP) and Fe2+ (ferrous ion) chelating capacity] of 70% methanol, chloroform:methanol, 2:1 volume ratio (CM) and ethyl acetate extract of turmeric (Curcuma longa L.). Bioactive compound of tannin 0.125±0.007 mg Catechin Equivalent (CE)/g dry weight. Turmeric extracts yield were 70% methanol 16.54%, CM 5.64% and ethyl acetate 4.14%, respectively. Antioxidant activity of the samples exhibited a dose-dependent increase. Results showed that extraction solvent had significant effects on total flavonoid content and antioxidant effects of ethyl acetate. But ferrous ion-chelating capacity of 70% methanol extract was higher than CM and ethyl acetate extract. From the results of this study, turmeric can be utilized as a valuable and potential nutraceutical for the functional food industry.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 실험재료
  2.2. 시료의 추출
  2.3. 탄닌 함량 측정
  2.4. 총 플라보노이드 측정
  2.5. DPPH 라디칼 소거활성 측정
  2.6. ABTS 라디칼 소거활성 측정
  2.7. Ferric Reducing Antioxidant Power (FRAP) 측정
  2.8. Fe2+ (ferrous ion) 킬레이트 능력 측정
  2.9. 환원력 측정
  2.10. 통계 처리
 3. 결과 및 고찰
  3.1. 수 율
  3.2. 탄닌 함량
  3.3. 총 플라보노이드 함량
  3.4. DPPH 라디칼 소거활성
  3.5. ABTS 라디칼 소거활성
  3.6. Ferric Reducing Antioxidant Power (FRAP)
  3.7. Fe2+ (ferrous ion) 킬레이트 능력
  3.8. 환원력
 4. 결 론
 REFERENCES

• 오다영(부산대학교 식품공학과) | Da-Young Oh (Department of Food Science and Technology, Pusan National University)
• 김한수(부산대학교 식품공학과) | Han-Soo Kim (Department of Food Science and Technology, Pusan National University) Corresponding author