Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
권호 표지

The Nitrite-Scavenging Effects by Component of Green Tea Extracts

녹차 추출물의 아질산염 분해작용

  • Yeo, Saeng-Gyu (Dept. of Food Processing, Pusan Junior College) ;
  • Yeum, Dong-Min (Dept. of Food and Nutrition, Yangsan Junior College) ;
  • Lee, Dong-Ho (Dept. of Food Science and Technology, National Fisheries University of Pusan) ;
  • Ahn, Cheol-Woo (Dept. of Food Processing, Pusan Junior College) ;
  • Kim, Seon-Bong (Dept. of Food Science and Technology, National Fisheries University of Pusan) ;
  • Park, Yeung-Ho (Dept. of Food Science and Technology, National Fisheries University of Pusan)
  • 여생규 (부산전문대학 식품가공과) ;
  • 염동민 (양산전문대학 식품영양과) ;
  • 이동호 (부산수산대학교 식품공학과) ;
  • 안철우 (부산전문대학 식품가공과) ;
  • 김선봉 (부산수산대학교 식품공학과) ;
  • 박영호 (부산수산대학교 식품공학과)
  • Published : 1994.04.01
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Abstract

This paper was investigated to elucidate the nitrite-scavenging action as one of biological actions of green tea extracts. Green tea extracts exhibited remarkable nitrite-scavenging action. Among the green tea extracts, steamed green tea showed higher nitrite-scavenging action than roasted green tea. Nitrite-savenging actions of gren tea extracts were hardly influenced until three times extraction with hot water. Furthermore , the nitirte-scavenging action of green tea extracts showed ph dependent , highest at pH 1.2 and lowest at pH 6.0. The nitrite -scavenging rate in sample extracts /amine /nitrite systems exhibited faster than that in amine/nitrite systems. In order to screen the nitirte-scavenging factors, samples extracts were fractionated with methanol. in both samples, methanol-soluble fractions possessed greater nitrite-scavenging action than methanol-insoluble fractions .The nitrite-scavenging action of methanol-soluble fractions increased with proportion to absorbance at 420nm and at 280nm, while that of green tea extracts increased with the contents of total phenols and absorbance at 280nm.

Keywords

References

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