Food Science and Biotechnology

Korean Society of Food Science and Technology (한국식품과학회)
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Model System Study for the Mutagenicity of Sugar-Glycine Systems

  • Lee, Jae-Hwan (Department of Food Science and Technology, Institute of Lotus Functional Food Ingredient, Dongguk University) ;
  • Shin, Han-Seung (Department of Food Science and Technology, Institute of Lotus Functional Food Ingredient, Dongguk University)
  • Published : 2008.08.31
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Abstract

The mutagenicity after heating of different sugars (glucose, fructose, galactose, and tagatose) on the non-enzymatic browning reaction in different sugars and glycine model system was investigated. The model system containing 0.2 M glycine and 0.2 M of different sugars in 10 mL water was heated at $150{\pm}5^{\circ}C$ for 30 min. After heating, degree of non-browning reaction intensity and mutagenicity using Salmonella typhimurium TA 98 were examined. Heated glycine model systems containing different sugars increased their mutgenicity ranged from 30 to 372 revertant colonies. After heating for 40 min, mutagenicity was achieved with glycine model systems containing 4 different sugars with by 145, 356, 206, and 369 revertants per plate, respectively. The glycine model systems containing fructose or tagatose were significantly (p<0.05) higher mutagenic activity than glycine model systems containing glucose or galactose after 40 min of heating. The linear regression between Maillard reaction intensity and mutagenic activities (slope=32.38, $R^2=0.93$) indicates that mutagenicity could be fully ascribed to Maillard reaction products.

Keywords

References

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