Influence of the Dietary Addition of Butylated-Hydroxytoluene and Lipid Level on the Flesh Lipid Quality of Beluga Sturgeon (Huso huso) During Frozen Storage |
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| Authors: | Seyed Vali Hosseini Abdolmohammad Abedian Kenari Masoud Rezaei Rajab Mohammad Nazari Mojtaba Mohseni Xesus Feas Sanchez |
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| Affiliation: | 1. Department of Fisheries, University of Tehran, Karaj, Iranhosseinisv@ut.ac.ir;3. Department of Fisheries, Tarbiat Modares University, Noor, Iran;4. Department of Seafood Science and Technology, Tarbiat Modares University, Noor, Iran;5. Rajaee Sturgeon Hatchery Center, Sari, Iran;6. Department of Fisheries, Islamic Azad University-Lahijan Branch, Lahijan, Iran;7. Department of Analytical Chemistry, Nutrition and Bromatology, The University of Santiago de Compostela, Lugo, Spain |
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| Abstract: | The main aim of the present work was to evaluate the effect of dietary butylated-hydroxytoulene (BHT as an antioxidant) and dietary lipid level on flesh lipid quality of Beluga sturgeon during frozen storage. An initial 135-day feeding trial evaluated practical-type diets containing 0 or 250 mg BHT kg?1 with two lipid levels (12 and 24% diet on dry matter basis) in a factorial arrangement. Fillet samples were analyzed fresh or after storage at ?18 ± 1°C for 12 months. Dietary antioxidant supplementation had no significant effect on fat content and fatty acid composition in the studied fish muscle, but increasing the lipid concentration in the feed increased muscle lipid concentration. Lipid oxidation in fish muscle is related to increasing lipid concentration in the feed. In addition, oxidation was reduced for fish fed BHT. Results showed that dietary BHT supplementation can slow down the level of lipid oxidation in Beluga sturgeon muscles during frozen storage, but it had a direct relationship with dietary lipid level. |
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| Keywords: | Beluga sturgeon (Huso huso) antioxidant butylated-hydroxytoulene lipid quality frozen storage |
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