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Changes in 4'-O-methylpyridoxine (ginkgotoxin) and antioxidant activity in ginkgo biloba seeds in different cooking conditions

조리조건에 따른 은행알의 4'-O-methylpyridoxine (ginkgotoxin) 함량 및 항산화 활성 변화

  • Hong, Seo Jung (Department of Nutritional Science & Food Management, Ewha Womans University) ;
  • Jang, Jin A (Department of Nutritional Science & Food Management, Ewha Womans University) ;
  • Hwang, Hyun Jung (Department of Nutritional Science & Food Management, Ewha Womans University) ;
  • Cho, Mi Sook (Department of Nutritional Science & Food Management, Ewha Womans University)
  • 홍서정 (이화여자대학교 식품영양학과) ;
  • 장진아 (이화여자대학교 식품영양학과) ;
  • 황현정 (이화여자대학교 식품영양학과) ;
  • 조미숙 (이화여자대학교 식품영양학과)
  • Received : 2017.05.04
  • Accepted : 2017.08.12
  • Published : 2017.10.31

Abstract

The purpose of this study was to examine the best cooking condition to decrease 4'-O-methylpyridonxine (MPN, ginkgotoxin) and increase the antioxidative effect. We also examined the change in color of ginkgo biloba seeds after different cooking methods and times. MPN content was decreased with an increase in the cooking time. For the reduction of MPN content, the most efficient cooking method was pan-frying. In particular, MPN content was largely reduced after 8 min of pan-frying. 1,1-Diphenyl-2-picrylhydrazyl radical scavenging activity and total flavonoid content were increased after 11 min of pan-frying and this level was maintained until 14 min. The total phenolic compound content was maintained for up to 30 min by steaming and 11 min by pan-frying. Therefore, the optimum condition was established by pan-frying from 8 to 11 min.

Keywords

ginkgo biloba seeds;ginkgotoxin;4'-O-methylpyridoxine;antioxidant activity

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