생명과학회지 (Journal of Life Science)

  • 제22권11호
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  • Pages.1451-1455
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  • 2012
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
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마이얄반응생성물(Maillard reaction product)에 의한 쑥갓의 효소적갈면 억제

Inhibition of Enzymatic Browning of Crown Daisy by Maillard Reaction Products

  • 김지혜 (동아대학교 식품영양학과) ;
  • 송현승 (동아대학교 식품영양학과) ;
  • 박인식 (동아대학교 식품영양학과)
  • Kim, Ji-Hae (Department of Food Science and Nutrition, Dong-A University) ;
  • Song, Hyeon-Seung (Department of Food Science and Nutrition, Dong-A University) ;
  • Park, Inshik (Department of Food Science and Nutrition, Dong-A University)
  • 투고 : 2012.10.16
  • 심사 : 2012.11.08
  • 발행 : 2012.11.30
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초록

다양한 아미노산과 당을 $90^{\circ}C$에서 반응시켜 생성한 마이얄반응 생성물(Maillard reaction product)은 쑥갓에서 추출한 폴리페놀산화효소(polyphenol Oxidase, PPO)를 강하게 저해하였다. 글리신(glycine)과 포도당을 함유한 반응물으로부터 MRP의 생성은 $90^{\circ}C$에서 반응시간에 따라 직선적으로 증가하였으나 글리신과 포도당의 양은 상대적으로 감소하였다. 반응액에서 MRP의 증가함에 따라 반응액은 쑥갓 PPO활성을 비례적으로 강하게 저해하였다. 실험에 사용한 아미노산과 당중에서 글루타민과 자일로스를 아미노산과 당으로 이용했을 경우에 생성된 MRP가 쑥갓 PPO의 활성에 강한 저해제로 작용하였다. 카테콜을 기질로 사용한 쑥갓 PPO의 마이클레스 상수(Michaelis Menten constant)는 22.0 mM이었으며, MRP는 쑥갓 PPO의 비경쟁적 저해제로 작용하였다.

The study was conducted to investigate the effect of Maillard reaction products (MRPs) on enzymatic browning of crown daisy (Chrysanthmum coronarium var. spatiosum). The MRPs prepared by heating various amino acid and sugar at $90^{\circ}C$ caused a strong inhibitory effect on crown daisy polyphenol oxidase (PPO, ${\sigma}$-diphenol oxygen oxidoreductase, EC 1.10.3.1). As the reaction time of the solution containing glycine and glucose increased at $90^{\circ}C$, the production of MRPs was increased, whereas the amounts of glycine and glucose were decreased. Accordingly, the inhibitory effect of crown daisy PPO activity by MRPs was increased as the amounts of synthesized MRPs were increased. The MRPs synthesized from the various amino acids and sugars significantly reduced the PPO activity, particularly MRPs prepared by glutamine and xylose. The Michealis-Menten constant value ($K_m$) of crown daisy PPO with catechol as a substrate was 22.0 mM, and MRPs were a noncompetitive inhibitor against crown daisy PPO.

키워드

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