Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Composition in Carotenoids of Rainbow Trout Fed with CLA and Ascidian Tunic Extracts

CLA와 멍게 껍질 추출물 급이에 따른 무지개송어 색소조성

  • Kang, Seok-Joong (Dept. of Life Science, Gyeongsang National University) ;
  • Choi, Byeong-Dae (Dept. of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University)
  • 강석중 (경상대학교 해양생명과학과) ;
  • 최병대 (해양식품공학과/해양산업연구소)
  • Published : 2009.12.31
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Abstract

Astaxanthin is a valuable pigment source for many aquacultured species, including salmonoids, shrimp, sea bream, and ornamental species. Conjugated linoleic acid (CLA) and ascidian tunic extracts were mixed with the basal diet of rainbow trout to investigate their pigmentation effects. Synthetic Carophyll Pink and natural carotenoids that came from the tunic extracts were incorporated into muscle and skin tissues. The main carotenoids found in muscle after 8 weeks were canthaxanthin in CP12 (13.4%), and CP52 (17.2%), and astaxanthin in CP12 (58.5%), and CP52 (59.2%) in the Carophyll Pink group, while those in skin were canthaxanthin in CP14 (34.5%), and CP54 (29.2%), and astaxanthin in CP14 (32.0%), and CP54 (36.5%) in the ascidian tunic extract group. The total carotenoid content in skin (53.0-69.3 mg/kg) was greater than that in muscle (9.5-13.8 mg/kg).

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References

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