Fresh fish swimming in the market is suspected to be carcinogenic.
a micro-blog has once again raised concerns about food safety. Yesterday, a micro-blog news said that the fish floating in the water, fish tank dying fish immediately restore vitality, the excessive use of fish floating additives will lead to excessive lead, arsenic content of fish, human consumption may cause cancer, but also affect the intelligence.
for such rumors, Hu Kun, an expert in fishery medicine at Shanghai Ocean University, said that there was no record of poisoning or carcinogenesis in China. However, the use of fish floating spirit is still short of national standards.
the too active fish may have taken the medicine
yesterday, a reminder on micro-blog's "too active fish do not buy" was forwarded more than 5 million times in half a day. It said: "go to the vegetable farm to buy fish, the result is a startling scene. The vendors add a white powder to the big basin and stir quickly with their hands. Then the white powder will dissolve, and the half dead fish and shrimp are poured into it. Here it is. This is a catalyst that can cause cancer, commonly known as fish floating spirit, and also has an impact on intelligence.
Baidu entry explains that the chemical name of fish floating spirit is sodium percarbonate, commonly known as solid hydrogen peroxide. Sodium percarbonate can quickly dissolve in water at room temperature and release oxygen quickly. Therefore, as long as the fish tank to add some fish floating spirit, the oxygen content in the fish tank will increase rapidly. In this way, some fish that originally looked for "no" because of oxygen deficiency can temporarily prolong life because of the addition of fish floating spirit.
does the fish in the Shanghai market use fish floating? Yesterday afternoon, the reporter saw in the vegetable farm of the control river road. There were not many living fish left in the aquatic stall, and the oxygen pump was placed in the general fish basin. Mr. Zhu, a fish trader, told reporters that in summer the temperature would be high, and they would reduce the quantity accordingly. "As long as there are fish in the pot, they will continue to oxygenate." That's the most common way to do it. " As for the fish floating spirit, Zhu said that he had never used it, nor had he seen it.
Tang Tailai, an aquatic product marketing information analyst in Tongchuan, said that aquatic products sold in the market require business certification and quality certification. "In the summer, in order to increase oxygen and prevent fish from dying too fast, the fish dealers either use ice or use oxygen pumps and fish buoyancy, which increases the cost. The market has not heard of selling fish floating spirit, nor has it seen who uses fish floating in the market.
Liang Weiquan, director of Fisheries Office of Shanghai Municipal Agriculture Commission, made clear that Shanghai's aquaculture industry did not find out the use of fish floating spirit.
fish floating spirit is short of national standard
however, fish floating spirit is not fresh. Reporters noted that as early as 2007, they were reported by the media in Beijing, Guangzhou and other places, and aroused social concern. At that time, Beijing food hygiene supervision department issued an early warning of fish floating Ling. At that time, the media said that the fish floating in the spirit contains lead, arsenic and other heavy metals, if too much use will make fish also appear to exceed the standard of these heavy metals, causing a threat to human health.
, however, Dr. Hu Kun, a fishery medicine expert at Shanghai Ocean University and a national aquatic animal disease source, introduced the use of fish floating spirit in the transport link of aquatic products to reduce the mortality of fish and shrimp, and to play a certain role in keeping fresh. Some water environment disinfection, also use fish floating spirit. One thing to be sure is that our country has not found any case of excessive heavy metals caused by the use of fish floating spirit, or even a case of intelligence and carcinogenesis. People don't have to worry too much.
Hu Kun also admitted that the embarrassment of fish floating Ling is lack of national standards. "For example, in Europe and America, what kind of fishery drugs can be used, there are quasi entries. It is counter in the country that there is an entry for banned fishing drugs. Yu Fu Ling is not included in the banned items, but there are no complete scientific data on how it should be used. "It is suggested that the public buy fish and shrimp to regular places, because these places need to be tested by the state before they are listed, and they are relatively safe."
remind
to observe fish eyes and scales
whether contaminated
consumers can identify fish floating pollution by observing fish eyes and scales when buying fish.
normal living fish eyes are clear and pollute living fish eyes cloudy; normal living fish scales are full and lustrous, and contaminated fish scales are lustrous, incomplete, and likely to have multiple bleeding. Especially for those fish that are not particularly active in Shanghai, the public should keep their eyes open when buying.