Vi cá mập

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Vi cá mập (Phồn thể: ; Việt phanh: jyu4 ci3, Mandarin: (Bính âm) Yú Chì / (Wade-Giles) Yü Ch'ih4 ) là tên loại vi của Cá mập được chế biến thành món ăn của một số nước Đông Á như Trung Quốc, Nhật Bản, Triều Tiên, Việt Nam...dành cho những người giàu có do giá đắt.

Shark fin soup
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Shark fin soup
Vi cá mập và một số bộ phận khác của cá mập bày bán ở nhà thuốc Đông Y
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Vi cá mập và một số bộ phận khác của cá mập bày bán ở nhà thuốc Đông Y



Mục lục

[sửa] Shark fin

Genuine shark fin soup or stew is made with shark fins obtained from any of a variety of shark species. Raw shark fins are processed by first removing the skin, trimming them to shape, and thoroughly drying them. Bleaching with hydrogen peroxide may be employed before drying to make the colour of the sharks fin more appealing. Shark fins are the cartilaginous pectoral and dorsal fins of a shark.

Fresh shark fin is rarely used in cuisine, and is almost always used in dried form. Dried shark fin is prepared by first reconstituting in clear meat stock made from either Chinese dried ham or chicken. Fins are then cooked through simmering in a rich stock with similarly rich and high-priced ingredients. This is done for no more than an hour in order to preserve the shark fin's texture and shape. It is then served as rich soup or stew, usually as a main course. Individual shark fin "needles" can be described as having a texture somewhere between soft rubber and hard agarose jelly, with the flexibility of the former and the slight brittle "crunch" of the latter. When a whole fin is eaten, the binding tissue combined with the needles softens the needles' otherwise rubbery impact. Shark fin itself does not have much flavour though it may hold a slight fishy fragrance. It is for these reasons that flavourful stocks and ingredients are used to enhance the flavour of shark fin.

Considered a highly prized delicacy, the best shark fin soup can fetch up to US$100 per bowl. Where they are in high demand like in Hong Kong, genuine sharks' fins from sought-after species such as the Hammerhead (Sphyrna spp.), Mako (Isurus spp.), and blue shark (Prionace glauca) can sell for US$400 per kilogram. However, there are also cheaper shark fins, usually taken from smaller shark species, used for casual dining. The quantities used for each bowl of soup may vary from a few needles of fin rays (typical in a US$150 Chinese feast), to a whole small fin, or even more. The price depends on the size and quality of shark fin used; shark fin is estimated to cost at least US$4.50 per bowl.

Shark fin is the third-most prized ingredient of the four treasures of the sea in Chinese cuisine. The others are abalone (which is always the most expensive), sea cucumber (varies in cost), and finally, dried scallops (known as conpoy) or fish maw.

[sửa] Pseudo-shark fin

There is an imitation version are usually sold as cans that may simply be labeled as shark-fin soup (in most cases preceded by the word "imitation" on the product label), and sells for around US$1.50 per bowl. It does not contain shark-fins, but instead is made of mung bean vermicelli shaped to resemble shark fins, though they are nowhere equivalent to genuine shark fin in either texture or color. It is commonly served in chicken broth, with culinary fungus and pork to enhance the texture and taste.

[sửa] Controversy

According to wildlife conservationists, much of the sharks' fins in the trade are cut from living sharks; this process is called finning. Because shark meat is worth very little, the finless and often still-living sharks are thrown back into the sea to make room for more of the valuable fins. When returned to the ocean, the finless sharks, unable to move, die from suffocation or are eaten by other sharks or animals. Also, many times fishermen who are looking for tuna find the sharks and fin them. Finning is vigorously opposed by animal welfare groups; both on moral grounds and also because it is purportedly a major cause for the rapid decline of global shark populations, in some cases by 99% over the last 50 years, leading conservation ecologists and fishery experts to predict widespread shark extinction in 10 or 20 years. An estimated 100 million sharks are slaughtered each year for their fins, and the industry is valued at US$1.2 billion; because of the lucrative profits, there are allegations of links to organized crime. They also raise questions on the medical harm from the consumption of high levels of toxic mercury reportedly found in shark fins.

In countries such as Thailand and Singapore, public awareness advertisements on finning have reportedly reduced consumption by 25%. In Hong Kong, the oldest chain of restaurants specializing in shark fin soup has reportedly closed, citing lobbying by the animal rights groups as one of the main reasons.

New laws have been passed to prevent finning; though much of the international waters continue to be unregulated. The United States recently issued a ban on finning, applicable only to U.S.-registered vessels, even in U.S. territorial waters; and shark fins cannot be imported into the USA without entire carcasses. International fishing authorities are in the process of banning shark fishing (and finning) in the Atlantic ocean and Mediterranean Sea. However shark fishing and finning continues unabated in the Pacific and Indian ocean.

Large-scale removal of sharks may severely unbalance the ecosystem of warm seas by allowing some species of large or middle-sized fish to multiply or grow bigger: for an example see grouper.

NBA star Yao Ming pledged to stop eating shark fin soup at a news conference on August 2, 2006. Australian naturalist Steve Irwin was known to walk out of Chinese restaurants if he saw shark fin soup on the menu. [1]

[sửa] Xem thêm

  • Cellophane noodles
  • Shark cartilage

[sửa] Tham khảo

  • Baum J.K., Myers R.A., Kehler D.G., Worm B., Harley S.J., Doherty P.A. (2003) — Collapse and Conservation of Shark Populations in the Northwest Atlantic. Science, 5605: 389–392.

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