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KMID : 0665220040170020156
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Korean Journal of Food and Nutrition
2004 Volume.17 No. 2 p.156 ~ p.162
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Comparision of Carotenoid Pigments in Catfish, Parasilurus asotus and Slender catfish, Parasilurus microdorsalis in the Family Siluridae
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Choi Ok-Soo
Ha Bong-Seuk
Kim Soo-Young
Kweon Moon-Jeong
Bae Tae-Jin
Kang Dong-Soo
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Abstract
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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.
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KEYWORD
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carotenoid, catfish, slender catfish, 7′, 8′-dihydro-{beta}-carotene
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