Effect of seawater reared on the nutritional composition and antioxidant activity of edible muscle in smoltified-landlocked masu salmon (Oncorhynchus masou masou)
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A new system of aquaculture for landlocked masu salmon (Oncorhynchus masou masou) has recently been developed in the southern Kyushu Island, Miyazaki, Japan. In this system, moderately silvering fish (smolt salmon) are artificially transported from the freshwater aquaculture ponds to floating seawater fish preserve, and they are then aquacultured during winter season, starting from December to the following April. As a result, their growth and body mass were greatly increased (total length: 21.25 ± 1.04–37.80 ± 3.71 cm; body weight: 81.75 ± 19.91–632.00 ± 172.42 g; condition factor: 8.45 ± 1.44–11.4 ± 0.74). In addition, There was a marked increase in chemical components such as the lipid contents (35.0 ± 9.4–79.2 ± 6.7 mg/g muscle), α-tocopherol (29.0 ± 17.0–178.6 ± 15.0 μg/g muscle), astaxanthin (0.1 ± 0.1–15.2 ± 8.8 μg/g muscle), and anserine (4.75 ± 0.59–10.32 ± 2.68 mg/g muscle) in the seawater-reared landlocked masu salmon. Furthermore, the antioxidant activity of the water soluble extract from the seawater-reared landlocked masu salmon increased from 480.96 ± 79.295–848.99 ± 182.79 μmol Trolox equivalent/g tissue. This new system that involves a short period of aquaculture in seawater not only promotes the growth of landlocked masu salmon, but may also improve its nutritional components and antioxidant activity.
KeywordsLandlocked masu salmon Lipid contents Carotenoids Anserine Antioxidant activity
We thank Osamu Akimoto of ‘Yamame no Sato’ for his help in collecting landlocked masu salmon and Enago (http://www.enago.jp), which reviewed the English language.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 1.Japanese Ministry of Agriculture. XI Fishery-4 Fishery and Aquaculture Production The 88th statistical yearbook of ministry of agriculture, forestry and fisheries (2015)Google Scholar
- 6.AOAC, Official Methods of Analysis of AOAC International. vol. 16. (Arlington, Virginia, 1997)Google Scholar
- 7.J. Folch, M. Lees, G.H.S. Stanley, J. Biol. Chem. 226, 497–509 (1957)Google Scholar
- 8.R. Tanaka, N. Nakazawa, T. Maeda, H. Fukushima, R. Wada, Y. Sugiura, T. Matsushita, H. Hatate, T. Okano, Y. Fukuda, Trans. Jap. Soc. Refrig. Air Cond. Eng. 32, 39–49 (2015)Google Scholar
- 11.Millipore, Millipore Corporation, Bilerica (1993)Google Scholar
- 27.R.M. Love, Chemical Biology of Fishes vol. 1, ed. by R.M. Love ed. (Academic Press, New York, 1970), pp. 222–257Google Scholar
- 32.Y. Hiraoka, Y. Sakai, K. Sonoda, Rep.Ehime Inst. Ind. Technol. 49, 19–22 (2011)Google Scholar
- 33.D. Perrone, M. Monteiro, V.N. Castelo-Branco, in Food and Nutritional Components in Focus, ed. by P. R. Victor ed. (Royal Society of Chemistry, London, 2015), pp. 43–60Google Scholar