This study was performed to investigate the enrichment of pterostilbene content and improvement of biological activity in harvested blueberries through the modulation of metabolism with high pressure treatment at hormetic doses. After harvested blueberries were pressurized under 2, 10, and 20 MPa for 5 min at 25oC along with a set of control, pterostilbene content and induction of quinone reductase activity were observed. As a result, the content of pterostilbene in high pressure treated blueberries was enriched up to 1.33 times while quinone reductase activity was improved compared to the untreated sample. These results suggest that a mild high pressure treatment can enrich pterostilbene content and improve biological activity in harvested blueberries according to hormetic response.

서 론
 재료 및 방법
  실험재료 및 시약
  고압 처리
  테로스틸벤의 추출
  HPLC 분석
  생물활성 평가
  통계처리
 결과 및 고찰
  고압 처리에 의한 테로스틸벤 증폭 효과
  고압 처리에 의한 생물활성 변화 분석
 요 약
 감사의 글
 References

• 김태은(한국식품연구원 바이오공정연구단) | Tae-Eun Kim
• 홍지영(서울대학교 약학대학) | Ji-Young Hong
• 조용진(서울대학교 약학대학) | Yong-Jin Cho