생약학회지 (Korean Journal of Pharmacognosy)

  • 제15권2호
  • /
  • Pages.78-84
  • /
  • 1984
  • /
  • 0253-3073(pISSN)
  • /
  • 2288-9299(eISSN)
한국생약학회 (The Korean Society of Pharmacognosy)
권호 표지

고들빼기의 갈변에 관한 연구

Studies on the Browning of Ixeris sonchifolia

  • 박수선 (숙명여자대학교 약학대학) ;
  • 김안근 (숙명여자대학교 약학대학)
  • Park, Soo-Sun (College of Pharmacy, Sook Myung Women's University) ;
  • Kim, An-Keun (College of Pharmacy, Sook Myung Women's University)
  • 발행 : 1984.06.30
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초록

Polyphenol oxidase was purified from acetone powder extract of the root of Ixeris sonchifolia. The enzyme obtained by ammonium sulfate fractionation and sephadex G-200 gelfiltration gave 51-fold purification over the crude extract. The purified enzyme showed activity toward chlorogenic acid, caffeic acid and pyrocatechol. The kinetics of thermal inactivation of the enzyme followed first-order reaction. Potassium cyanide and cysteine were potent inhibitors.

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