This study was conducted to investigate the antioxidant activities of extracts from various parts of the pine tree, which is known as a good source of functional food material. While ethanol extraction yields of pine bud and cone were higher than water extraction yields of pine bud and cone, water extraction yield of pine needle was higher than ethanol extraction yield of the pine needle. The content of polyphenols in the pine cone ethanol extract was 5 times higher than that in the pine bud and needle. Further, the content of flavonoids in the pine cone ethanol extract was 8 times higher than that in the pine bud and needle. DPPH radical scavenging effect of the pine cone ethanol extract was 3~5 times higher that of the pine bud and needle extract. Regardless of the extraction solvents, trolox equivalent antioxidant capacity (TEAC) and ferric reducing antioxidant power (FRAP) of the pine cone were stronger than those of the other parts of the pine tree. Taken together, it can be expected that the pine cone can be practically used as an antioxidant substance in food and beauty industries.

서 론
 재료 및 방법
  1. 공시재료
  2. 추출물 제조
  3. Total polyphenol 함량 측정
  4. Total flavonoid 함량 측정
  5. DPPH 라디칼 소거능 측정
  6. Reducing power 측정
  7. ABTS를 이용한 총 항산화력 측정
  8. FRAP를 이용한 총 항산화력 측정
  9. 통계처리
 결과 및 고찰
  1. 추출수율
  2. 총 폴리페놀 함량
  3. 총 플라보노이드 함량
  4. DPPH 라디칼 소거능
  5. Reducing power
  6. ABTS를 이용한 총 항산화력
  7. FRAP를 이용한 총 항산화력
  8. 총 폴리페놀, 플라보노이드 함량과 항산화력과의 상관관계
 요약 및 결론
 References

• 유범석(한국교통대학교 식품공학과) | Beom-Seok Ryu (Dept. of Food Science & Technology, Koera National University of Transportation)
• 최희은(한국교통대학교 식품공학과) | Hee-Eun Choi (Dept. of Food Science & Technology, Koera National University of Transportation)
• 최원석(한국교통대학교 식품공학과) | Won-Seok Choi (Dept. of Food Science & Technology, Koera National University of Transportation)
• 이난희(대구한의대학교 한방식품조리영양학부) | Nan-Hee Lee (Dept. of Food Science and Nutrition, Daegu Hanny University)
• 최웅규(한국교통대학교 식품공학과) | Ung-Kyu Choi (Dept. of Food Science & Technology, Koera National University of Transportation) Corresponding author