http://news.iqilu.com/shandong/shandonggedi/20120513/1219627.shtml
"sea cucumber is captured from sea water, adding ice and oxygen, at best conditions, for 7 hours at most." Recently, there are sea cucumber farmers burst out material, "many hotels in Ji'nan launched the live sea cucumber dishes, but at present, most of the living sea cucumbers sold in the Ji'nan market are transported from Shandong coastal cities, Dalian and other places, long trek, live sea cucumbers can be guaranteed to be alive?"
12 days of interview with reporters, although there are a large number of "live sea cucumbers" on the market at present, it is not easy to identify sea cucumbers, and the use of "sea crystal" to prolong the survival time of sea cucumbers is a secret in the industry, and "Sea Crystal" is harmful to the human body.
experts say that "living sea cucumbers" only meet the psychological needs of consumers to some extent, but if the living sea cucumber is not properly preserved, the nutritional value is not as good as the dried sea cucumber or instant sea cucumber processed immediately after the fishing.
[industry]
the sea cucumber to leave the sea can only live a few hours
"sea cucumbers are alive and coddled, leaving the sea for a few hours. At present, many businesses and hotels in the market are selling sea cucumbers as a selling point, but I think the living sea cucumber is just a 'gimmick'." Mr. Lee, who runs a sea cucumber store in Jiefang Road, recently broke the news to reporters.
the later reporter called Mr. Huang, who raised the sea cucumber in Qingdao for a long time. He said: "sea cucumber is a cold living creature, fishing from the sea, if adding oxygen to the sea, and packing the sea cucumber with a fresh-keeping box, do not touch fresh water. Under such a piece, it can live about 7 hours. "Live sea cucumber is not suitable for transportation, especially for long-distance transportation. If it is transported, it is best not to exceed 6 hours." Mr. Li, who has been in Weihai for five or six years, said.
more than ten hours away from the sea is also known as the live
at 6:30 on the morning of the 12 day. The reporter came to the seafood market in Ji'nan. Mr. Yu is busy selling sea cucumber. "Our sea cucumber is alive. It was salvaged from Wei Haihai at 5 p.m. yesterday. After packing," It began to transport to Ji'nan and shipped to the seafood market at 10 in the evening. It started selling in the early morning and usually sold to the morning. Every day, you can rest assured that the quality of sea cucumber is absolutely no problem. "
the reporter saw that in front of his booth, the salesman opened the white foam suitcase with a living sea cucumber with two black plastic bags in the box, surrounded by scattered ice, the salesman opened the black plastic bag and took the sea cucumber to a plastic bowl. The customers who were buying sea cucumbers were pinching sea cucumbers next to each other. Through conversation, the reporter learned that he was a buyer of a hotel, and the sea cucumber was pinched to confirm whether the sea cucumber was fresh.
according to the introduction of the gentleman, the reporter rough calculation, the previous day at 5 p.m. to the second day morning at 6:30, the living sea cucumbers sold before and after the 13.5 hours. If according to Mr. Huang and Mr. Li, who raised the sea cucumber for the year, the living sea cucumbers were hard to live for more than ten hours, but the living sea cucumbers sold in the Ji'nan market were more than ten hours away from the marine environment.
["life and death" hard to judge]
it's hard to tell the death of the dead
"the sea cucumber is sure to be alive. It's fresh. It's not a fresh seafood. I'll go to the hotel to get sea cucumbers more inclined to live sea cucumbers." Mr. Zhang, who works in a public institution in Ji'nan, said.
but how to distinguish the "live sea cucumber" sold on the market is dead and alive, Mr. Zhang said he has never made a clear distinction, "especially in the seafood market to buy a living sea cucumber. The sea cucumber is frozen in the ice, and it does not move."
reporters come to a hotel near the seafood market, see sea cucumbers in glass aquariums, and sea cucumbers do not move. The waiters say there are excreta to prove that the sea cucumber is alive.
this, Li Lujing, a researcher at the Shandong Fisheries Technology Extension Station, said that sea cucumber is a low living creature and slow, especially at low temperature, so it is easy to enter the low temperature dormancy state, so it is difficult for consumers to distinguish the death of sea cucumber by the naked eye.
[industry secrets]
the preservation of the sea crystal can prolong the survival period of
"the living sea cucumbers shipped with ice, if you want to keep up, it will be about two days", "living sea cucumber to buy back in the sea for a week is no problem", the reporter in the seafood market interview, a number of sea cucumber marketing The sales staff are different. "To keep the sea cucumber alive for two days to a week, it depends on sea crystal." Mr. Wu, who has been running sea cucumber for years, said that sea cucumber must be raised with sea water, but the cost is very expensive. Now many hotels are using sea crystal to raise sea cucumber. "Not only is sea cucumber, as long as it is a seafood sold in 'sea water", it will use sea crystal.
it is understood that sea crystal is a product of sea water and salt chemical industry. It is produced mainly through a series of processes such as evaporation, centrifugation and concentration of sea water or brine.
Han Zhen, executive director of the Shandong Cuisine Association, said that the sea crystal can't be eaten directly. It must be harmful to the human body, because it is a kind of chemical product. When some enterprises are processing sea crystal, the extraction of chemical substances is not thorough, which may lead to high content of harmful substances. If seafood products are fed with sea crystal for a long time, there may be adverse reactions such as dizziness, nausea, vomiting and even heavy metal poisoning.
industry insiders say that most hotels in Ji'nan are used to breed sea cucumbers with "artificial sea water" for two times. As a kind of industrial salt, the "sea crystal", which does not meet the standard, contains sodium nitrate and nitrite, which are all carcinogenic substances.
[expert pulse]
the high nutrition of the living sea cucumber is the misunderstanding
"the living sea cucumber is so expensive, is the nutritional value really higher than the dry sea cucumber?" In the seafood market, Ms. Han raised questions. By visiting seafood markets, sea cucumber stores and hotels, the reporter learned that the price of live sea cucumber is indeed higher than that of dried sea cucumbers. Take the sea cucumber with the same size as an example, the price of the sea cucumber in the seafood market is about 70 yuan, and the price of a sea cucumber is about 23 yuan. The price of the living sea cucumber in the hotel near the seafood market varies from 48 yuan to 68 yuan. The dried sea cucumber takes 3000 yuan / Jin as an example, about 200 catties of a catty, so the price for each sea cucumber is about 15 yuan. In fact, the nutritional value of dried sea cucumber is far greater than that of live sea cucumber. Because the sea cucumber leaves the sea water, if the water temperature, salinity and light conditions can not meet the requirements, the sea cucumber will spit intestines, and then slowly shrink, and its nutrients will gradually lose. Li Lujing said that if preserved sea cucumber is not preserved properly, its nutritive value is not as good as dried sea cucumber or instant sea cucumber processed immediately after fishing.