The Korean Journal of Food And Nutrition (한국식품영양학회지)

The Korean Society of Food and Nutrition (한국식품영양학회)
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Comparision of Carotenoid Pigments in Catfish, Parasilurus asotus and Slender catfish, Parasilurus microdorsalis in the Family Siluridae

메기과에 속하는 메기와 미유기의 Carotenoid 색소 성분의 비교

  • 백승한 (순천제일대학 식생활과) ;
  • 하봉석 (경상대학교 식품영양학) ;
  • 김수영 (경상대학교 식품영양학) ;
  • 권문정 (경상대학교 식품영양학) ;
  • 최옥수 (순천제일대학 식생활) ;
  • 배태진 (여수대학교 식품공ㆍ영양학) ;
  • 강동수 (여수대학교 식품공ㆍ영양학부)
  • Published : 2004.06.01
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Abstract

This study was performed as a part of comparative biological studies of carotenoid pigment for the unutilized biological products. The content of total carotenoid in the integument of wild catfish were 0.27(${\pm}$0.7) mg％ and composed of 25.8％ zeaxanthin, 9.7％ diatoxanthin and 9.1 ％ cynthiaxanthin as major carotenoid. The content of total carotenoid in the integument of cultured catfish were 0.07(${\pm}$0.03) mg％ which is relatively lower compare to wild catfish and composed of 48.5％ lutein, 13.9％ zeaxanthin and 13.3％ isocryptoxanthin as major carotenoid. The total carotenoid contents of the slender catfish were 0.75(${\pm}$0.25) mg％ which is relatively higher compare to other species of catfishes. The carotenoids were composed of 24.5％ zeaxanthin, 24.1 ％ 7'8'-dihydro-${\beta}$-carotene-4-ol, 17.9％ 7'8'-dihydro-${\beta}$-carotene and 10.8％ 7'8'-dihydro-${\beta}$-carotene-3-01 as major carotenoid and 8.7％ diatoxanthin, 6.7％ cynthiaxanthin and 5.0％ lutein as minor carotenoid. Based on these data, as a comparative studies of carotenoid in integument of siluridae, parasiloxanthin and 7',8'-dihydroparasiloxanthin which are the characteristic carotenoid of catfish from biwa lake in Japan, Slender catfish contained more based on 7',8'-dihydro-${\beta}$-carotene while that of wild and cultured catfishes were not found, indicating that carotenoid pigment of slender catfish depend on their living conditions.

미이용자원인 어류 carotenoid에 관한 비교 생화학적 연구의 일환으로서, 메기과의 자연산 및 양식산 메기와 한국 특산의 담수어류인 미유기의 표피 carotenoid를 TLC, column chromatography 및 HPLC로 분리하고 NaBH$_4$에 의한 환원반응, I$_2$에 의한 이성화반응 및 UV-visible spectrophotometer로 비교하고 IR 및 Mass spectrum을 측정하여 carotenoid를 동정한 결과는 다음과 같다. 자연산 메기 표피의 총 carotenoid 함량은 0.27 mg($\pm$0.7)%였으며 carotenoid의 조성은 zeaxanthin 25.8%, diatoxanin 9.7% 및 cynthiaxanthin 9.1%로서 주성분을 이루고 있었으며 그 외 isocryptoxanthin 6.5%, $\beta$-carotene 5.1%, $\beta$-cryptoxanthin 4.3%, lutein 3.4% 및 $\alpha$-cryptoxantin 2.4%의 순으로 함유하고 있었다. 양식산 메기 표피의 총 carotenoid 함량은 0.07 mg($\pm$0.03)%로서 자연산 메기에 비해 다소 낮았으며, carotenoid의 조성은 lutein 48.5%, zeaxanin 13.9% 및 isocryptoxanin 13.3%로서 주성분을 이루고, 그 외 $\beta$-carotene 9.5%, $\beta$-cryptoxantin 1.4% 및 $\alpha$-cryptoxanthin 4.6%의 순으로 함유하고 있었다. 한편 미유기 표피의 총 carotenoid 함량은 0.75 mg($\pm$0.25)%로서 메기과의 다른 어종에 비해 함량이 높았으며, carotenoid 조성은 zeaxanthin 24.5%, 7'8'-dihydro-$\beta$ -carotene-4-ol 24.1%, 7'8'-dihydro-$\beta$-carotene 17.9% 및 7'8'-dihydro-$\beta$-carotene-3-ol 10.8%로서 주성분을 이루고 있었으며 그 외 diatoxanthin 8.7%, cynthiaxanthin 6,7% 및 lutein 5.0%의 순으로 함유하고 있었다. 이러한 결과는 parasiloxanthin과 7',8'-dihyo-parasiloxanthin을 주성분으로 함유하는 biwa호수 메기, P. asotus 표피 carotenoid 조성과 비교하여, 미유기에서는 7'8'-dihydro-$\beta$-carotene의 구조를 가진 carotenoid가 존재하였으나 자연산 및 양식산 메기에서는 발견되지 않아 특이하였다.

Keywords

References

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