Chitooligosaccharides in Korean Commercial Salt-Fermented Shrimps, Determined by Enzyme-Linked Immunosorbent Assay

  • Shim, Youn-Young (Korea Food Research Institute, Graduate School of Biotechnology, Korea University) ;
  • Shon, Dong-Hwa (Korea Food Research Institut) ;
  • Chee, Kew-Mahn (Graduate School of Biotechnology, Korea University)
  • Published : 2004.08.01

Abstract

In this study, we determined the content of chitooligosaccharides (COS) in Korean commercial salt-fermented shrimps by competitive direct enzyme-linked immunosorbent assays (cdELISAs), using anti-COS mixture (COSM) antibody and COSM horseradish peroxidase (HRP) conjugate. When COS6 was spiked into salt-fermented shrimps at the level of $10-300\mu{g/g,}$ the average recovery was $120\pm19%$ ($mean\pmS.D.$). The COS contents of the 92 samples of Korean commercial salt-fermented shrimps collected during February 2000 and August 2002 were $36.3\pm20.7\mug$ COS6 equivalent/g (expressed as "$\mug/g$" hereafter). Among the samples, the COS contents of yuk-jeot ( $40.3 \pm 22.5 \mug/g, n=27$) and buksaewoojeot ($40.2 \pm 21.6 \mug/g, n=5$) were higher than the others. The COS contents of salt-fermented shrimps produced at Gwangcheon ($47.1 \pm 20.7 \mug/g, n=18$) and Gomso ($44.1 \pm 21.8 \mug/g, n=6$) areas were higher than those produced at the other areas. This is the first report to determine COS of salt-fermented shrimps by cdELISA.

Keywords

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