산업식품공학 제22권 제4호 (p.315-320)

동결 및 열풍건조 아로니아 추출물의 항산화 및 항염증 활성

Antioxidant and Anti-inflammatory Activities in Freeze-dried and Hot Air-dried Aronia (Aronia melanocarpa) Extracts
키워드 :
Aronia melanocarpa,freeze-drying,hot air-drying,antioxidant activity,anti-inflammatory activity

목차

Abstract
서 론
재료 및 방법
  실험재료
  추출물 제조
  총 폴리페놀 함량 측정
  총 플라보노이드 함량 측정
  DPPH radical 소거 활성 측정
  ABTS radical 소거 활성 측정
  세포주 배양
  MTT assay
  Nitric oxide (NO) 생성량 측정
  통계분석
결과 및 고찰
  총 폴리페놀 및 총 플라보노이드 함량
  항산화 활성
  세포 생존율
  NO 생성 억제
요 약
References

초록

This study examined the effects of drying methods of Aronia melanocarpa on contents of total polyphenols and flavonoids, antioxidant activity and anti-inflammatory activity. As a result, freeze-dried aronia extract (FDAE) significantly exhibited higher contents of total polyphenols and flavonoids (155.76 mg GAE/g and 105.70 mg QE/g) than hot-air dried aronia extract (HDAE) (134.93 mg GAE/g and 82.29 mg QE/g). Also, FDAE showed greater antioxidant activity than HDAE in both DPPH and ABTS. For anti-inflammatory activity, NO production from lipopolysaccharide activated RAW264.7 cell reduced at a dose-dependent manner in both FDAE and HDAE. However, reduction rate of NO production is higher in FDAE (62.7%) than in HDAE (33.5%). These results suggest that comparatively, freezedrying is a better method for preserving the antioxidant and anti-inflammatory activities and of aronia.