Flatfish were once a high class fish and had a very expensive ransom. However, with the development of aquaculture technology and successful flatfish farming, flatfish has become the most popular fish to the extent that it is now known as the national raw fish dish. Let’s find out how effective flat fish are, which Koreans love regardless of their gender and age.
FlatfishㅣSource: Getty Image Bank
High protein, low fat, perfect for a diet
The season for wild flounder is from the end of October, when autumn begins in earnest, to the end of January, when the cold weather is at its peak. At this time, flatfish are actively feeding in preparation for the spring spawning season, so they are fat and rich in fat, so they taste the best.
Flounder is a high-protein, low-fat white fish that contains almost no sugar. The fat content is 3.7g per 100g, about twice as high as flounder, and protein accounts for more than 20% of the total weight. Calories are also low at 103 to 124 kcal per 100 g, so even those who are very concerned about weight control can enjoy it without any burden.
Effective in preventing obesity and adult diseases
Flounder is rich in essential amino acids such as valine, leucine, and isoleucine, which are effective for building muscle, and ingredients that help relieve fatigue, such as citric acid. It also contains a large amount of calcium and vitamin D (18ug per 100g), so it is excellent for children’s growth, preventing osteoporosis, and improving immunity.
Flounder lipids are rich in omega-3, an unsaturated fatty acid, which is effective in preventing obesity and adult diseases. In particular, there is a lot of EPA and IPA, which prevent the aggregation of platelets, and help to smooth the blood circulation by reducing the levels of bad cholesterol and neutral fat in the blood. It also has the effect of stabilizing blood pressure, so it is good for preventing high blood pressure and arteriosclerosis. In 2017, through its own research, the Ministry of Oceans and Fisheries discovered for the first time in the world a substance that inhibits angiotensin converting enzyme 1 (ACE), a substance that causes constriction of blood vessels in the muscle protein of flounder.
In addition, flatfish have a powerful antioxidant called glutathione, which is very effective in removing active oxygen from the body, which is one of the main culprits of ageing. It is also rich in collagen, vitamin B12, and cobalamin, which is good for improving skin elasticity and protecting vision.
How to buy and store flounder
First, it is fresh with a smooth surface and reddish white flesh.
Second, choose ones that don’t have lumpy eggs protruding from the belly, and avoid dull ones because they’re old.
Third, remove the trimmed flounder, sprinkle with salt, flour and pepper, wrap in plastic wrap, and freeze.
Fourth, don’t throw the bones away, put them in a container, cover them with plastic wrap and freeze them, and then use them in stews like Maeuntang to make cold soup.
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