쏘가리(Siniperca scherzeri)의 시기에 따른 영양성분 변화

Abstract

Seasonal variation in the composition and fatty acid, amino acid, cholesterol, and vitamin contents in the muscles of the mandarin fish Siniperca scherzeri, caught in Soyangho Lake, Korea, was studied. The moisture content was 74.5-78.7 g/100 g, lipids ranged between 1.06 and 4.23 g/100 g, protein between 18.5-20.7 g/100 g, and ash between 0.74 and 2.04 g/100 g. The moisture content was lowest in May and tended to increase from June to October. The highest protein levels occurred in May, which coincided with the timing of oocyte maturation, and then decreased at the beginning of spawning. The highest lipid levels occurred in May and November coinciding with the periods before spawning and hibernation. The ratio of EAA/NEAA was higher than the value recommended by FAO for an 'ideal' food protein. There were significant differences in Mg and Fe contents with spawning; they were highest in May. Contents of vitamin A and E were from not detected (ND) to <TEX>$17.1{\mu}g/100g$</TEX> and ND to 0.69 mg/100 g, respectively and were highest in November. The content of niacin tended to decrease in June and increased until November and hibernation. The cholesterol content was 14.9-78.9 mg/100 g; it decreased from March to July and then increased until November. In conclusion, there is potential for expanding the commercial utilization of the mandarin fish as a food resource.