Biosynthesis of L-Ascorbic Acid by Microorganisms in Kimchi Fermentation Process

  • Cheigh, Hong-Sik (Dept. of Food Science and Nutrition, Pusan National University, Pusan 609-735) ;
  • Rina Yu (Dept. of Food and Nutrition, University of Ulsan 680-749) ;
  • Park, Hyun-Jeong (Dept. of Microbiology, Pusan National University, Pusan 609-735) ;
  • Jun, Hong-Ki (Dept. of Microbiology, Pusan National University, Pusan 609-735)
  • Published : 1996.06.01

Abstract

Kinchi is and important source of various vitamins, minerals, dietary fiber, organic acids and other nutrients. In order to get a basic information for developing vitamins-rich funtional kimchi, we investigated microorganisms which are capable of synthesis of vitamin C in Kimchi system. Microorganisms isolated from aliquots of kimchi were screened and cultured by using MRS or nutrient agar medium. L-Ascorbic acid produced by microorganism in medium was measured with high performance liquid chromatography. As the result, we isolated two bacteria strins N7 and N5202 preducing L-ascorbic acid from the kimchi system. Morphological and Gram staining experiment showed that N7 was Gram positive bacilli, while N5202 was Gram negative. There were also several bacteria that were considered to synthesizs erythorbic acid which is an analog of ascorbic acid. These results suggested that vitamin C-rich functional food could be developed by using the kimchi microorganisms.

Keywords

References

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