Effects of Dietary Inclusion of Canthaxanthin- and α-Tocopherol-Loaded Liposomes on Growth and Muscle Pigmentation of Rainbow Trout (Oncorhynchus mykiss)
| Autor: | Thanh Duong Nguyen, Van Thinh Do, Manh Do Van, Duy Chinh Nguyen, Xuan Luong Ngo, Thu Huong Trinh, Quoc Long Pham, Viet Anh Dang, Phi Hung Nguyen, Thuy Ha Tran, Tran Quoc Toan, Hai Ha Pham Thi, Van Khoi Le, Tri Nhut Pham |
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| Rok vydání: | 2021 |
| Předmět: |
food.ingredient
Article Subject 030310 physiology 01 natural sciences Lecithin Commercial fish feed 03 medical and health sciences Pigment chemistry.chemical_compound food Aquaculture TX341-641 Food science Tocopherol Canthaxanthin Safety Risk Reliability and Quality Carotenoid chemistry.chemical_classification 0303 health sciences Liposome Nutrition. Foods and food supply business.industry 010401 analytical chemistry 0104 chemical sciences chemistry visual_art visual_art.visual_art_medium business Food Science |
| Zdroj: | Journal of Food Quality, Vol 2021 (2021) |
| ISSN: | 1745-4557 0146-9428 |
| DOI: | 10.1155/2021/6653086 |
| Popis: | Dietary inclusion of canthaxanthin, a common carotenoid pigment, has been long practiced in aquaculture to give the favorable flesh color in farmed salmonids. However, carotenoids are associated with limited solubility and poor physicochemical stability, and their dose in fish feed is widely regulated. In this study, we included canthaxanthin- and α-tocopherol-loaded liposomes into fish diets and evaluated the effects of supplemented fish feed on fish growth, color, nutrition, and canthaxanthin deposition in fillets of cultured rainbow trout (Oncorhynchus mykiss). The liposomes were fabricated using lecithin as phospholipids with the initial concentrations (IC = mcanthaxanthin/mlipids, % wt/wt) of canthaxanthin at 0.1%, 0.5%, and 1.0%. Particle size characterization showed that liposome mean sizes were 109.70 ± 6.36, 105.10 ± 8.41, and 109.20 ± 5.66 nm (mean ± SD; n = 3), respectively, corresponding with liposomes synthesized at canthaxanthin IC = 0.1%, IC = 0.5%, and IC = 1%. The polydispersity index (PDI) of all samples remained lower than 0.2. There were no significant differences in the mean size and PDI between blank lecithin liposome and canthaxanthin- and α-tocopherol-loaded liposomes. The encapsulation efficiency of canthaxanthin- and α-tocopherol-loaded liposomes decreased when increasing the concentration of canthaxanthin in lecithin liposomes, with EE% values of IC = 0.1%, IC = 0.5%, and IC = 1% being 85.3 ± 2.1, 72.9 ± 1.8, and 55.3 ± 2.6, respectively. For fish growth, at the end of the experiment, final weight was significantly higher in fish fed with diet supplemented with 1 g/kg canthaxanthin- and α-tocopherol-loaded liposomes (IC = 0.5%) in comparison to other experimental control groups. The difference in color of the salmon muscle was most apparent after two months of feeding. However, after three months, there was no noticeable change in the color score of the fish muscle, indicating saturation of color of the fish muscle. The above results suggest the potential of canthaxanthin- and a-tocopherol-loaded liposomes as the red pigment in fish aquaculture. |
| Databáze: | OpenAIRE |
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