As we all know, salmon is a very popular fish food. It has a variety of flavors, delicious taste, and a pleasant and smooth taste. Many people like to eat it. Does salmon have parasites? Let's take a look at the specifics below!
Does salmon have parasites
The salmon we eat is generally divided into deep sea salmon and freshwater salmon.
Deep-sea salmon without parasites
The world’s deep-sea salmon origins are imported into North Atlantic countries such as Norway and Chile. Parasitic species in the deep sea areas are extremely difficult to survive. The salmon there does not go back to the freshwater area and is not contaminated with parasites, so deep sea salmon is free of parasites.
Freshwater salmon has a parasite
Freshwater salmon generally lives in Alaska and Hokkaido, Japan. Wild salmon can be traced back to rivers, where parasites often survive. Salmon in the Pacific region belongs to freshwater salmon and contains more bacteria.
Mustard cannot kill salmon parasites
Salmon has a lot of parasites, which can easily be eaten raw. Some people think that eating green salmon with sashimi can kill parasites and eat them at ease. In fact, the killing bactericidal effect of the green mustard is limited and does not have the effect of killing parasites.
According to Zeng Jing, deputy director of the Department of Nutrition of the Guangdong Armed Police Corps Hospital, the green mustard contains glucosyl isocyanide ester, which can be antibacterial, anti-oxidant, anti-tumor and anti-parasitic. The data show that glucosyl isocyanide ester has certain bactericidal and antibacterial effects. It can kill Escherichia coli and Staphylococcus aureus and has inhibitory effects on white bacteria, Streptococcus hemolyticus, Streptococcus viridans, Shigella and Salmonella. However, the bactericidal action of Bacillus mainly present in cooked meat products is weak.
Zeng Jing said that although mustard has a positive effect on improving the taste and removing odor, it cannot rely on mustard to kill the fish. Experiments have shown that the bactericidal action of green mustard is stronger with increasing concentration; in addition, it is also related to the processing time. The fish is treated in a certain concentration of mustard for 90 to 120 minutes to achieve the bactericidal effect.
How to kill salmon parasites
Can kill parasites through high temperatures
The parasites in salmon are generally classified into nematodes and ovaries, which are present in the anus, abdomen and tail. Parasites can be eliminated very well by high temperatures. Normal temperatures can kill parasites at 70°C.
Frozen can kill parasites
High temperature or freezing is an effective method to kill alloparasites. In order to maintain the food value of fish meat, it is still mainly frozen.
The environmental protection and health departments of some countries have issued specific food safety regulations. For example, the U.S. Food and Drug Administration requires that fish be frozen at minus 35°C for 15 hours, or frozen at minus 20°C for 7 days before consumption; the European Union’s standard is Freezing at minus 20°C for more than 24 hours.
The Hong Kong Centre for Food Safety stipulates that, when purchasing raw materials, the fish are refrigerated at minus 20 °C for 24 hours and they are generally able to kill parasites in fish.
How to eat salmon safe
Salmon has parasites that cannot be eaten raw
When most of China's salmon is imported, it will undergo rigorous testing. Most of them are free of parasites and can be eaten in moderation.
If parasites in salmon are not killed and eaten, the parasites enter the human body as larvae, causing serious damage to the gastrointestinal tract and digestive system, and can easily cause symptoms such as disturbance of digestive organs.
High temperature cooking
Some salmon with parasites are recommended to cook at high temperatures so that they can kill the parasite and at the same time with other ingredients. The taste is also good.
Attention date
When the salmon is salvaged, it will be refrigerated, and it will be destroyed in three days after the thawing is prescribed. Friends should pay more attention to the next date when they eat salmon.
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