Fugu
Encyclopedia
is the Japanese word for pufferfish and the dish prepared from it, normally species of genus Takifugu
, Lagocephalus
, or Sphoeroides
, or porcupinefish
of the genus Diodon
. Fugu can be lethally poisonous due to its tetrodotoxin
; therefore, it must be carefully prepared to remove toxic parts and to avoid contaminating the meat. The restaurant preparation of fugu is strictly controlled by the law in Japan and several other countries, and only chefs who have qualified through rigorous training are allowed to deal with the fish. However, the domestic preparation occasionally leads to accidental death. Fugu is served as sashimi
and chirinabe. Some consider the liver the tastiest part but it is also the most poisonous, and serving the fugu liver in restaurants was banned in Japan in 1984. Fugu has become one of the most celebrated and notorious dishes in Japanese cuisine
.
tetrodotoxin
in the organs, especially the liver
, the ovaries
, and the skin. The poison, a sodium channel blocker
, paralyzes the muscle
s while the victim stays fully conscious along with causing paralysis
. The victim is unable to breathe, and eventually dies from asphyxia
tion. There is no known antidote
. The standard treatment is to support the respiratory
and circulatory system
s until the poison dissipates.
Advances in research and aquaculture have allowed some farmers to mass-produce safe fugu. Researchers surmised that fugu's tetrodotoxin came from eating other animals that held tetrodotoxin-laden bacteria
and developed immunity over time. Many farmers now produce 'poison-free' fugu by keeping the fugu away from the bacteria. Usuki
, a town in Ōita Prefecture
, has become known for selling non-poisonous fugu.
that date back more than 2,300 years. The Tokugawa shogunate
(1603–1868) prohibited the consumption of fugu in Edo
and its area of influence. It became common again as the power of the shogun
ate weakened. In western regions of Japan, where the government's influence was weaker and fugu was easier to get, various cooking methods were developed to safely eat them. During the Meiji Era (1867–1912), fugu was again banned in many areas. Fugu is also the only food officially forbidden to the Emperor of Japan
, for his safety.
rubripes), is the most prestigious edible species and the most poisonous. Other species are also eaten; for example, Higanfugu (T. pardalis), Shōsaifugu (T. vermicularis syn. snyderi), and Mafugu (T. porphyreus). The Ministry of Health, Labour and Welfare of Japan
provides a list that shows which species' body parts can be consumed. The list names safe genera
including pufferfish
of the Lagocephalus
and Sphoeroides
genera and the related porcupinefish
(Harisenbon) of the genus Diodon
.
ing season and then farmed in floating cages in the Pacific Ocean
. The largest wholesale fugu market in Japan is in Shimonoseki.
Fugu prices rise in autumn and peak in winter, the best season, because they fatten to survive the cold. Living fish arrive at a restaurant, surviving in a large tank, usually prominently displayed. Prepared fugu is also often available in grocery stores, which must display official license documents. Whole fish may not be sold to the general public.
Since 1958, fugu chefs must also earn a license to prepare and sell fugu to the public. This involves a two- or three-year apprenticeship. The licensing examination process consists of a written test, a fish-identification test, and a practical test, preparing and eating the fish. Only about 35 percent of the applicants pass. Small miscalculations result in failure or, in rare cases, death. This training process makes it safer to eat fugu in restaurants or markets. Also, commercially available fugu is grown in environments in which it grows to be less toxic.
(TTX) is a potent neurotoxin
that shuts down electrical signaling
in nerve
s by binding to the pores of sodium channel
protein
s in nerve cell
membranes
. Tetrodotoxin is not affected by cooking. It does not cross the blood–brain barrier
, leaving the victim fully conscious while paralyzing the muscles. In animal studies with mice, 8 μg tetrodotoxin per kg body weight killed 50%
of the mice. The pufferfish itself is not susceptible to the poison because of a mutation in the protein sequence of its cells' sodium channel.
As previously mentioned, commercially available fugu in supermarkets or restaurants is very safe; and, while not unheard of, poisoning from these products is very rare. Most deaths from fugu occur when untrained people catch and prepare the fish, accidentally poisoning themselves. In some cases, they even eat the highly poisonous liver as a delicacy. Poison concentrations vary from fish to fish, so poisoning may not always lead to death, instead giving little more than numbness on the lips and tongue while eating and shortly thereafter (part of the appeal). However, numbness of the lips is also the first sign of a lethal dose.
Recent evidence has shown that tetrodotoxin is produced by certain bacteria
–such as Pseudoalteromonas tetraodonis, certain species of Pseudomonas
and Vibrio
, as well as others—and that these are the source of the toxin in pufferfish.
There is no known antidote
, and treatment consists of emptying the stomach, feeding the victim activated charcoal to bind the toxin, and putting the victim on life support
until the poison has worn off. Japanese toxicologists
in several medical research centers are now working on developing an antidote for tetrodotoxin.
actor and "Living National Treasure
" Bandō Mitsugorō VIII who in 1975 died after eating an illegally large four servings of liver.
On August 23, 2007, a doctor in Thailand reported that unscrupulous fish sellers sold puffer meat disguised as salmon, which resulted in the deaths of fifteen people over three years. About 115 people were brought to different hospitals. Fugu was banned in Thailand five years prior to the deaths.
In March 2008, a fisherman in the Philippines died and members of his family became ill from pufferfish. The previous year, four people in the same town died and five others fell ill after eating the same variety of pufferfish.
have reportedly succeeded in creating a non-toxic variety of torafugu by restricting the fish's diet. After raising over 4,800 non-toxic fish, they are fairly certain that the fish's diet and digestive process actually produce the toxins. The non-toxic version is said to taste the same. Some skeptics say that the species being offered as non-toxic may be of a different species and that the toxicity has nothing to do with the diet of the pufferfish.
district in Tokyo
. Zuboraya is another popular chain in Osaka
.
In South Korea
, fugu is known as bok-eo (복어). It is very popular in port cities such as Busan
and Incheon
. It is prepared in a number of dishes such as soups or salads and commands a high price.
As of 2003, only seventeen restaurants in the United States
were licensed to serve fugu; twelve are in New York
. The fugu is cleaned of the most toxic parts in Japan and freeze-flown to the USA under license in customized, clear, plastic containers. Fugu chefs for U.S. restaurants are trained under the same rigorous specifications as in Japan.
Sale of fish belonging to this genus
is forbidden altogether in the European Union.
(1716–1783) expressed some of the Japanese attraction to fugu in a famous senryū
:
In the Kansai
region, the slang word teppō, meaning rifle
or gun
, is used for the fish. This is a play of words on the verb ataru , which can mean to be poisoned or shot. In Shimonoseki region, the ancient pronunciation fuku is more common instead of the modern fugu. The former is also a homonym
good fortune whereas the latter is one for disabled.
The Tsukiji fish market
fugu association holds a service each year at the height of the fugu season, releasing hundreds of caught fugu into the Sumida River
. A similar ceremony is also held at another large market in Shimonoseki.
A rakugo
, or humorous short story, tells of three men who prepared a fugu stew but were unsure whether it was safe to eat. To test the stew, they gave some to a beggar. When it did not seem to do him any harm, they ate the stew. Later, they met the beggar again and were delighted to see that he was still in good health. After that encounter, the beggar, who had hidden the stew instead of eating it, knew that it was safe and he could eat it. The three men had been fooled by the wise beggar.
Chairman Kaga, the fictional, eccentric and flamboyant host of the cooking show Iron Chef
, is portrayed to have died of fugu poisoning after the series ended (in a reunion episode in 2002).
Lantern
s can be made from the bodies of preserved fugu. These are occasionally seen outside of fugu restaurants, as children's toys, as folk art, or as souvenirs. Fugu skin is also made into everyday objects like wallet
s or waterproof boxes.
Takifugu
Takifugu is a genus of pufferfish, often better known by the Japanese name . There are 25 species belonging to the genus Takifugu, which can be found worldwide from about 45° latitude north to 45° latitude south, mostly in salt water. Their diet consists mostly of algae, molluscs, invertebrates...
, Lagocephalus
Lagocephalus
Lagocephalus is a genus in the pufferfish family .- Species :* Lagocephalus gloveri Abe & Tabeta, 1983* Diamondback puffer, Lagocephalus guentheri Miranda-Ribeiro, 1915...
, or Sphoeroides
Sphoeroides
Sphoeroides is a genus of pufferfishes.- Species :* Sphoeroides andersonianus Morrow, 1957* Narrow-headed puffer, Sphoeroides angusticeps * Bullseye puffer, Sphoeroides annulatus...
, or porcupinefish
Porcupinefish
Porcupinefish are fish of the family Diodontidae, , also commonly called blowfish ....
of the genus Diodon
Diodon
Members of the diodontidae, species of the genus diodon are usually known as porcupinefishes or balloonfishes.-Distinguishing features:Fish of the genus Diodon have;...
. Fugu can be lethally poisonous due to its tetrodotoxin
Tetrodotoxin
Tetrodotoxin, also known as "tetrodox" and frequently abbreviated as TTX, sometimes colloquially referred to as "zombie powder" by those who practice Vodou, is a potent neurotoxin with no known antidote. There have been successful tests of a possible antidote in mice, but further tests must be...
; therefore, it must be carefully prepared to remove toxic parts and to avoid contaminating the meat. The restaurant preparation of fugu is strictly controlled by the law in Japan and several other countries, and only chefs who have qualified through rigorous training are allowed to deal with the fish. However, the domestic preparation occasionally leads to accidental death. Fugu is served as sashimi
Sashimi
Sashimi is a Japanese delicacy. It consists of very fresh raw meat, most commonly fish, sliced into thin pieces.-Origin:The word sashimi means "pierced body", i.e...
and chirinabe. Some consider the liver the tastiest part but it is also the most poisonous, and serving the fugu liver in restaurants was banned in Japan in 1984. Fugu has become one of the most celebrated and notorious dishes in Japanese cuisine
Japanese cuisine
Japanese cuisine has developed over the centuries as a result of many political and social changes throughout Japan. The cuisine eventually changed with the advent of the Medieval age which ushered in a shedding of elitism with the age of shogun rule...
.
Toxicity
Fugu contains lethal amounts of the poisonPoison
In the context of biology, poisons are substances that can cause disturbances to organisms, usually by chemical reaction or other activity on the molecular scale, when a sufficient quantity is absorbed by an organism....
tetrodotoxin
Tetrodotoxin
Tetrodotoxin, also known as "tetrodox" and frequently abbreviated as TTX, sometimes colloquially referred to as "zombie powder" by those who practice Vodou, is a potent neurotoxin with no known antidote. There have been successful tests of a possible antidote in mice, but further tests must be...
in the organs, especially the liver
Liver
The liver is a vital organ present in vertebrates and some other animals. It has a wide range of functions, including detoxification, protein synthesis, and production of biochemicals necessary for digestion...
, the ovaries
Ovary
The ovary is an ovum-producing reproductive organ, often found in pairs as part of the vertebrate female reproductive system. Ovaries in anatomically female individuals are analogous to testes in anatomically male individuals, in that they are both gonads and endocrine glands.-Human anatomy:Ovaries...
, and the skin. The poison, a sodium channel blocker
Sodium channel blocker
Sodium channel blockers are agents that impair conduction of sodium ions through sodium channels.-Extracellular:The following naturally produced substances block sodium channels by binding to and occluding the extracellular pore opening of the channel:...
, paralyzes the muscle
Muscle
Muscle is a contractile tissue of animals and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move past each other and change the size of the cell. They are classified as skeletal, cardiac, or smooth muscles. Their function is to...
s while the victim stays fully conscious along with causing paralysis
Paralysis
Paralysis is loss of muscle function for one or more muscles. Paralysis can be accompanied by a loss of feeling in the affected area if there is sensory damage as well as motor. A study conducted by the Christopher & Dana Reeve Foundation, suggests that about 1 in 50 people have been diagnosed...
. The victim is unable to breathe, and eventually dies from asphyxia
Asphyxia
Asphyxia or asphyxiation is a condition of severely deficient supply of oxygen to the body that arises from being unable to breathe normally. An example of asphyxia is choking. Asphyxia causes generalized hypoxia, which primarily affects the tissues and organs...
tion. There is no known antidote
Antidote
An antidote is a substance which can counteract a form of poisoning. The term ultimately derives from the Greek αντιδιδοναι antididonai, "given against"....
. The standard treatment is to support the respiratory
Respiratory system
The respiratory system is the anatomical system of an organism that introduces respiratory gases to the interior and performs gas exchange. In humans and other mammals, the anatomical features of the respiratory system include airways, lungs, and the respiratory muscles...
and circulatory system
Circulatory system
The circulatory system is an organ system that passes nutrients , gases, hormones, blood cells, etc...
s until the poison dissipates.
Advances in research and aquaculture have allowed some farmers to mass-produce safe fugu. Researchers surmised that fugu's tetrodotoxin came from eating other animals that held tetrodotoxin-laden bacteria
Bacteria
Bacteria are a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals...
and developed immunity over time. Many farmers now produce 'poison-free' fugu by keeping the fugu away from the bacteria. Usuki
Usuki, Oita
is a city located on the east coast of Ōita Prefecture, Japan. It is famous for its Usuki Stone Buddhas, a national treasure, and its soy sauce production. Recently it has become known for having the look and feel of a Japanese castle town...
, a town in Ōita Prefecture
Oita Prefecture
is a prefecture of Japan on Kyūshū Island. The prefectural capital is the city of Ōita.- History :Around the 6th century Kyushu consisted of four regions: Tsukushi-no-kuni 筑紫国, Hi-no-kuni 肥国, and Toyo no kuni...
, has become known for selling non-poisonous fugu.
History
The inhabitants of Japan have eaten fugu for centuries. Fugu bones have been found in several shell mounds, called kaizuka, from the Jōmon periodJomon period
The is the time in Japanese prehistory from about 14,000 BC to 300 BC.The term jōmon means "cord-patterned" in Japanese. This refers to the pottery style characteristic of the Jōmon culture, and which has markings made using sticks with cords wrapped around them...
that date back more than 2,300 years. The Tokugawa shogunate
Tokugawa shogunate
The Tokugawa shogunate, also known as the and the , was a feudal regime of Japan established by Tokugawa Ieyasu and ruled by the shoguns of the Tokugawa family. This period is known as the Edo period and gets its name from the capital city, Edo, which is now called Tokyo, after the name was...
(1603–1868) prohibited the consumption of fugu in Edo
Edo
, also romanized as Yedo or Yeddo, is the former name of the Japanese capital Tokyo, and was the seat of power for the Tokugawa shogunate which ruled Japan from 1603 to 1868...
and its area of influence. It became common again as the power of the shogun
Shogun
A was one of the hereditary military dictators of Japan from 1192 to 1867. In this period, the shoguns, or their shikken regents , were the de facto rulers of Japan though they were nominally appointed by the emperor...
ate weakened. In western regions of Japan, where the government's influence was weaker and fugu was easier to get, various cooking methods were developed to safely eat them. During the Meiji Era (1867–1912), fugu was again banned in many areas. Fugu is also the only food officially forbidden to the Emperor of Japan
Emperor of Japan
The Emperor of Japan is, according to the 1947 Constitution of Japan, "the symbol of the state and of the unity of the people." He is a ceremonial figurehead under a form of constitutional monarchy and is head of the Japanese Imperial Family with functions as head of state. He is also the highest...
, for his safety.
Species
The torafugu, or tiger blowfish (TakifuguTakifugu
Takifugu is a genus of pufferfish, often better known by the Japanese name . There are 25 species belonging to the genus Takifugu, which can be found worldwide from about 45° latitude north to 45° latitude south, mostly in salt water. Their diet consists mostly of algae, molluscs, invertebrates...
rubripes), is the most prestigious edible species and the most poisonous. Other species are also eaten; for example, Higanfugu (T. pardalis), Shōsaifugu (T. vermicularis syn. snyderi), and Mafugu (T. porphyreus). The Ministry of Health, Labour and Welfare of Japan
Ministry of Health, Labour and Welfare (Japan)
The ' is a cabinet level ministry of the Japanese government. It is commonly known as Kōrō-shō in Japan. This ministry provides regulations on maximum residue limits for agricultural chemicals in foods, basic food and drug regulations, standards for foods, food additives, etc.It was formed with...
provides a list that shows which species' body parts can be consumed. The list names safe genera
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
including pufferfish
Pufferfish
Tetraodontidae is a family of primarily marine and estuarine fish of the Tetraodontiformes order. The family includes many familiar species which are variously called pufferfish, balloonfish, blowfish, bubblefish, globefish, swellfish, toadfish, toadies, honey toads, sugar toads, and sea squab...
of the Lagocephalus
Lagocephalus
Lagocephalus is a genus in the pufferfish family .- Species :* Lagocephalus gloveri Abe & Tabeta, 1983* Diamondback puffer, Lagocephalus guentheri Miranda-Ribeiro, 1915...
and Sphoeroides
Sphoeroides
Sphoeroides is a genus of pufferfishes.- Species :* Sphoeroides andersonianus Morrow, 1957* Narrow-headed puffer, Sphoeroides angusticeps * Bullseye puffer, Sphoeroides annulatus...
genera and the related porcupinefish
Porcupinefish
Porcupinefish are fish of the family Diodontidae, , also commonly called blowfish ....
(Harisenbon) of the genus Diodon
Diodon
Members of the diodontidae, species of the genus diodon are usually known as porcupinefishes or balloonfishes.-Distinguishing features:Fish of the genus Diodon have;...
.
Regulations
Strict fishing regulations are now in place to protect fugu populations from depletion. Most fugu are now harvested in the spring during the spawnSpawn (biology)
Spawn refers to the eggs and sperm released or deposited, usually into water, by aquatic animals. As a verb, spawn refers to the process of releasing the eggs and sperm, also called spawning...
ing season and then farmed in floating cages in the Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...
. The largest wholesale fugu market in Japan is in Shimonoseki.
Fugu prices rise in autumn and peak in winter, the best season, because they fatten to survive the cold. Living fish arrive at a restaurant, surviving in a large tank, usually prominently displayed. Prepared fugu is also often available in grocery stores, which must display official license documents. Whole fish may not be sold to the general public.
Since 1958, fugu chefs must also earn a license to prepare and sell fugu to the public. This involves a two- or three-year apprenticeship. The licensing examination process consists of a written test, a fish-identification test, and a practical test, preparing and eating the fish. Only about 35 percent of the applicants pass. Small miscalculations result in failure or, in rare cases, death. This training process makes it safer to eat fugu in restaurants or markets. Also, commercially available fugu is grown in environments in which it grows to be less toxic.
Offal
Selling or serving the liver (the most toxic part) is illegal in Japan; but this "forbidden fruit" is still sometimes eaten by amateur cooks, often with fatal results.Cost
A dish of fugu can easily cost ¥5,000 (approx. US$50), but it can be found for as little as ¥2,000 (approx. US$20), and a full-course fugu meal (usually eight servings) can cost ¥10,000-¥20,000 (approx. US$100-$200) or more. The expense encourages chefs to slice the fish very carefully to obtain the largest possible amount of meat. The special knife, called fugu hiki, is usually stored separately from other knives.Preparations
- Sashimi—The most popular dish is fugu sashimiSashimiSashimi is a Japanese delicacy. It consists of very fresh raw meat, most commonly fish, sliced into thin pieces.-Origin:The word sashimi means "pierced body", i.e...
, also called Fugu sashi or tessa, sliced so thinly that the pattern of the plate can be seen through the meat. Knives with exceptionally thin blades are used for cutting fugu into translucent slices, a technique known as . These plates are often decorated in the form of a chrysanthemumChrysanthemumChrysanthemums, often called mums or chrysanths, are of the genus constituting approximately 30 species of perennial flowering plants in the family Asteraceae which is native to Asia and northeastern Europe.-Etymology:...
flower, which is significant in Japanese culture.
- Milt—The soft roeRoeRoe or hard roe is the fully ripe internal egg masses in the ovaries, or the released external egg masses of fish and certain marine animals, such as shrimp, scallop and sea urchins...
(Shirako) of the blowfish is a highly prized food item in Japan. It is often found in department stores; and, along with cod milt, it is one of the most popular kinds of soft roe. It is often grilled and served with salt.
- Fried—Fugu can be eaten deep fried as Fugu Kara-age.
- Baked—The fins of the fish are dried out completely, baked, and served in hot sake, a dish called Hire-zake.
- Stew—Vegetables and fugu can be simmered as Fugu-chiri, also called tetchiri, in which case the fish's very light taste is hard to distinguish from the vegetables and the dip.
- Salad—If the spikes in the skin are pulled out, the skin can be eaten as part of a salad called yubiki.
Poison
TetrodotoxinTetrodotoxin
Tetrodotoxin, also known as "tetrodox" and frequently abbreviated as TTX, sometimes colloquially referred to as "zombie powder" by those who practice Vodou, is a potent neurotoxin with no known antidote. There have been successful tests of a possible antidote in mice, but further tests must be...
(TTX) is a potent neurotoxin
Neurotoxin
A neurotoxin is a toxin that acts specifically on nerve cells , usually by interacting with membrane proteins such as ion channels. Some sources are more general, and define the effect of neurotoxins as occurring at nerve tissue...
that shuts down electrical signaling
Action potential
In physiology, an action potential is a short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called excitable cells, which include neurons, muscle cells, and...
in nerve
Nerve
A peripheral nerve, or simply nerve, is an enclosed, cable-like bundle of peripheral axons . A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons. Nerves are found only in the peripheral nervous system...
s by binding to the pores of sodium channel
Ion channel
Ion channels are pore-forming proteins that help establish and control the small voltage gradient across the plasma membrane of cells by allowing the flow of ions down their electrochemical gradient. They are present in the membranes that surround all biological cells...
protein
Protein
Proteins are biochemical compounds consisting of one or more polypeptides typically folded into a globular or fibrous form, facilitating a biological function. A polypeptide is a single linear polymer chain of amino acids bonded together by peptide bonds between the carboxyl and amino groups of...
s in nerve cell
Neuron
A neuron is an electrically excitable cell that processes and transmits information by electrical and chemical signaling. Chemical signaling occurs via synapses, specialized connections with other cells. Neurons connect to each other to form networks. Neurons are the core components of the nervous...
membranes
Cell membrane
The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. It basically protects the cell...
. Tetrodotoxin is not affected by cooking. It does not cross the blood–brain barrier
Blood-brain barrier
The blood–brain barrier is a separation of circulating blood and the brain extracellular fluid in the central nervous system . It occurs along all capillaries and consists of tight junctions around the capillaries that do not exist in normal circulation. Endothelial cells restrict the diffusion...
, leaving the victim fully conscious while paralyzing the muscles. In animal studies with mice, 8 μg tetrodotoxin per kg body weight killed 50%
LD50
In toxicology, the median lethal dose, LD50 , LC50 or LCt50 of a toxin, radiation, or pathogen is the dose required to kill half the members of a tested population after a specified test duration...
of the mice. The pufferfish itself is not susceptible to the poison because of a mutation in the protein sequence of its cells' sodium channel.
As previously mentioned, commercially available fugu in supermarkets or restaurants is very safe; and, while not unheard of, poisoning from these products is very rare. Most deaths from fugu occur when untrained people catch and prepare the fish, accidentally poisoning themselves. In some cases, they even eat the highly poisonous liver as a delicacy. Poison concentrations vary from fish to fish, so poisoning may not always lead to death, instead giving little more than numbness on the lips and tongue while eating and shortly thereafter (part of the appeal). However, numbness of the lips is also the first sign of a lethal dose.
Recent evidence has shown that tetrodotoxin is produced by certain bacteria
Bacteria
Bacteria are a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals...
–such as Pseudoalteromonas tetraodonis, certain species of Pseudomonas
Pseudomonas
Pseudomonas is a genus of gammaproteobacteria, belonging to the family Pseudomonadaceae containing 191 validly described species.Recently, 16S rRNA sequence analysis has redefined the taxonomy of many bacterial species. As a result, the genus Pseudomonas includes strains formerly classified in the...
and Vibrio
Vibrio
Vibrio is a genus of Gram-negative bacteria possessing a curved rod shape, several species of which can cause foodborne infection, usually associated with eating undercooked seafood. Typically found in saltwater, Vibrio are facultative anaerobes that test positive for oxidase and do not form...
, as well as others—and that these are the source of the toxin in pufferfish.
Treatment
The symptoms from ingesting a lethal dose of tetrodotoxin may include dizziness, exhaustion, headache, nausea, or difficulty breathing. The victim remains conscious but cannot speak or move. Breathing stops and asphyxiation follows.There is no known antidote
Antidote
An antidote is a substance which can counteract a form of poisoning. The term ultimately derives from the Greek αντιδιδοναι antididonai, "given against"....
, and treatment consists of emptying the stomach, feeding the victim activated charcoal to bind the toxin, and putting the victim on life support
Life support
Life support, in medicine is a broad term that applies to any therapy used to sustain a patient's life while they are critically ill or injured. There are many therapies and techniques that may be used by clinicians to achieve the goal of sustaining life...
until the poison has worn off. Japanese toxicologists
Toxicology
Toxicology is a branch of biology, chemistry, and medicine concerned with the study of the adverse effects of chemicals on living organisms...
in several medical research centers are now working on developing an antidote for tetrodotoxin.
Incidents
Statistics from the Tokyo Bureau of Social Welfare and Public Health indicate 20 to 44 incidents of fugu poisoning per year between 1996 and 2006 in Japan (a single incident may involve multiple diners). Each year, these incidents led to between 34 and 64 victims being hospitalized and zero to six deaths, an average fatality rate of 6.8%. Of the 23 incidents reported in Tokyo from 1993 through 2006, only one took place in a restaurant. All others involved fishermen eating their catch. Much higher figures have been reported for earlier years; and, for example, in 1958—the first year the preparation of fugu required a special license in Japan—176 people died. According to the Fugu Research Institute 50% of the victims were poisoned by eating the liver, 43% from eating the ovaries, and 7% from eating the skin. One of the most famous victims was the KabukiKabuki
is classical Japanese dance-drama. Kabuki theatre is known for the stylization of its drama and for the elaborate make-up worn by some of its performers.The individual kanji characters, from left to right, mean sing , dance , and skill...
actor and "Living National Treasure
Living National Treasure
Living National Treasure or Living Human Treasure is a title awarded in several countries, and denotes a person or a group which is regarded as a national treasure while still alive....
" Bandō Mitsugorō VIII who in 1975 died after eating an illegally large four servings of liver.
On August 23, 2007, a doctor in Thailand reported that unscrupulous fish sellers sold puffer meat disguised as salmon, which resulted in the deaths of fifteen people over three years. About 115 people were brought to different hospitals. Fugu was banned in Thailand five years prior to the deaths.
In March 2008, a fisherman in the Philippines died and members of his family became ill from pufferfish. The previous year, four people in the same town died and five others fell ill after eating the same variety of pufferfish.
Aquaculture
Scientists at Nagasaki UniversityNagasaki University
is a national university of Japan. Its nickname is Chōdai . The main campus is located in Bunkyo-machi, Nagasaki City, Nagasaki Prefecture, Japan.- History :...
have reportedly succeeded in creating a non-toxic variety of torafugu by restricting the fish's diet. After raising over 4,800 non-toxic fish, they are fairly certain that the fish's diet and digestive process actually produce the toxins. The non-toxic version is said to taste the same. Some skeptics say that the species being offered as non-toxic may be of a different species and that the toxicity has nothing to do with the diet of the pufferfish.
Availability
Most Japanese cities enjoy one or more fugu restaurants. They may cluster, because of earlier restrictions, as proximity made it easier to ensure freshness. A famous restaurant specializing in fugu is Takefuku, in the GinzaGinza
is a district of Chūō, Tokyo, located south of Yaesu and Kyōbashi, west of Tsukiji, east of Yūrakuchō and Uchisaiwaichō, and north of Shinbashi.It is known as an upscale area of Tokyo with numerous department stores, boutiques, restaurants and coffeehouses. Ginza is recognized as one of the most...
district in Tokyo
Tokyo
, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...
. Zuboraya is another popular chain in Osaka
Osaka
is a city in the Kansai region of Japan's main island of Honshu, a designated city under the Local Autonomy Law, the capital city of Osaka Prefecture and also the biggest part of Keihanshin area, which is represented by three major cities of Japan, Kyoto, Osaka and Kobe...
.
In South Korea
South Korea
The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...
, fugu is known as bok-eo (복어). It is very popular in port cities such as Busan
Busan
Busan , formerly spelled Pusan is South Korea's second largest metropolis after Seoul, with a population of around 3.6 million. The Metropolitan area population is 4,399,515 as of 2010. It is the largest port city in South Korea and the fifth largest port in the world...
and Incheon
Incheon
The Incheon Metropolitan City is located in northwestern South Korea. The city was home to just 4,700 people when Jemulpo port was built in 1883. Today 2.76 million people live in the city, making it Korea’s third most populous city after Seoul and Busan Metropolitan City...
. It is prepared in a number of dishes such as soups or salads and commands a high price.
As of 2003, only seventeen restaurants in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
were licensed to serve fugu; twelve are in New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...
. The fugu is cleaned of the most toxic parts in Japan and freeze-flown to the USA under license in customized, clear, plastic containers. Fugu chefs for U.S. restaurants are trained under the same rigorous specifications as in Japan.
Sale of fish belonging to this genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
is forbidden altogether in the European Union.
Social aspects
The Japanese poet Yosa BusonYosa Buson
was a Japanese poet and painter from the Edo period. Along with Matsuo Bashō and Kobayashi Issa, Buson is considered among the greatest poets of the Edo Period. Buson was born in the village of Kema in Settsu Province...
(1716–1783) expressed some of the Japanese attraction to fugu in a famous senryū
Senryu
is a Japanese form of short poetry similar to haiku in construction: three lines with 17 or fewer total morae . Senryū tend to be about human foibles while haiku tend to be about nature, and senryū are often cynical or darkly humorous while haiku are more serious...
:
- I cannot see her tonight.
- I have to give her up
- So I will eat fugu.
In the Kansai
Kansai
The or the lies in the southern-central region of Japan's main island Honshū. The region includes the prefectures of Mie, Nara, Wakayama, Kyoto, Osaka, Hyōgo, and Shiga. Depending on who makes the distinction, Fukui, Tokushima and even Tottori Prefecture are also included...
region, the slang word teppō, meaning rifle
Rifle
A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile , imparting spin around an axis corresponding to the...
or gun
Gun
A gun is a muzzle or breech-loaded projectile-firing weapon. There are various definitions depending on the nation and branch of service. A "gun" may be distinguished from other firearms in being a crew-served weapon such as a howitzer or mortar, as opposed to a small arm like a rifle or pistol,...
, is used for the fish. This is a play of words on the verb ataru , which can mean to be poisoned or shot. In Shimonoseki region, the ancient pronunciation fuku is more common instead of the modern fugu. The former is also a homonym
Homonym
In linguistics, a homonym is, in the strict sense, one of a group of words that often but not necessarily share the same spelling and the same pronunciation but have different meanings...
good fortune whereas the latter is one for disabled.
The Tsukiji fish market
Tsukiji fish market
The , commonly known as the , is the biggest wholesale fish and seafood market in the world and also one of the largest wholesale food markets of any kind. The market is located in Tsukiji in central Tokyo, and is a major attraction for foreign visitors....
fugu association holds a service each year at the height of the fugu season, releasing hundreds of caught fugu into the Sumida River
Sumida River
The is a river which flows through Tokyo, Japan. It branches from the Arakawa River at Iwabuchi and flows into Tokyo Bay. Its tributaries include the Kanda and Shakujii rivers....
. A similar ceremony is also held at another large market in Shimonoseki.
A rakugo
Rakugo
is a Japanese verbal entertainment. The lone sits on the stage, called the . Using only a paper fan and a small cloth as props, and without standing up from the seiza sitting position, the rakugo artist depicts a long and complicated comical story...
, or humorous short story, tells of three men who prepared a fugu stew but were unsure whether it was safe to eat. To test the stew, they gave some to a beggar. When it did not seem to do him any harm, they ate the stew. Later, they met the beggar again and were delighted to see that he was still in good health. After that encounter, the beggar, who had hidden the stew instead of eating it, knew that it was safe and he could eat it. The three men had been fooled by the wise beggar.
Chairman Kaga, the fictional, eccentric and flamboyant host of the cooking show Iron Chef
Iron Chef
is a Japanese television cooking show produced by Fuji Television. The series, which premiered on October 10, 1992, is a stylized cook-off featuring guest chefs challenging one of the show's resident "Iron Chefs" in a timed cooking battle built around a specific theme ingredient. The series ended...
, is portrayed to have died of fugu poisoning after the series ended (in a reunion episode in 2002).
Lantern
Lantern
A lantern is a portable lighting device or mounted light fixture used to illuminate broad areas. Lanterns may also be used for signaling, as 'torches', or as general light sources outdoors . Low light level varieties are used for decoration. The term "lantern" is also used more generically to...
s can be made from the bodies of preserved fugu. These are occasionally seen outside of fugu restaurants, as children's toys, as folk art, or as souvenirs. Fugu skin is also made into everyday objects like wallet
Wallet
A wallet, or billfold, is a small, flat case that is used to carry personal items such as cash, credit cards, identification documents , photographs, business cards and other paper or laminated cards...
s or waterproof boxes.
See also
- Culture of JapanCulture of JapanThe culture of Japan has evolved greatly over the millennia, from the country's prehistoric Jōmon period to its contemporary hybrid culture, which combines influences from Asia, Europe and North America...
- Cuisine of Japan
- Fugu PlanFugu PlanThe Jewish settlement in Imperial Japan involved the movement of Jews to and through Japan to its occupied areas of China shortly prior to and during World War II, coinciding with the Second Sino-Japanese War...
- Shanghai Fugu AgreementShanghai Fugu Agreementthumb|255px|[[Fugu]], a political and poisonous delicacyThe Shanghai Fugu Agreement was a successful 1985 political prank played on the Social Democrats in the German state of Hesse....
- TakifuguTakifuguTakifugu is a genus of pufferfish, often better known by the Japanese name . There are 25 species belonging to the genus Takifugu, which can be found worldwide from about 45° latitude north to 45° latitude south, mostly in salt water. Their diet consists mostly of algae, molluscs, invertebrates...
- "One Fish, Two Fish, Blowfish, Blue FishOne Fish, Two Fish, Blowfish, Blue Fish"One Fish, Two Fish, Blowfish, Blue Fish" is the eleventh episode of The Simpsons second season. It originally aired on the Fox network in the United States on January 24, 1991. In the episode, Homer consumes a poisonous fugu fish at a sushi restaurant, and is told that he has only twenty-two hours...
"
Further reading
- Sueyoshi´, Sueyoshi's pages on fishes. Retrieved Sep 11, 2004