Bok choy (

American English American English, sometimes called United States English or U.S. English, is the set of variety (linguistics), varieties of the English language native to the United States. English is the Languages of the United States, most widely spoken lang ...

Canadian English Canadian English (CanE, CE, en-CA) encompasses the Variety (linguistics), varieties of English language, English used in Canada. According to the 2016 Canadian Census, 2016 census, English was the first language of 19.4 million Canadians or ...

, and

Australian English Australian English (AusE, AusEng, AuE, AuEng, en-AU) is the set of variety (linguistics), varieties of the English language native to Australia. It is the country's common language and ''de facto'' national language. While Australia has no of ...

), pak choi (

British English British English is the set of Variety (linguistics), varieties of the English language native to the United Kingdom, especially Great Britain. More narrowly, it can refer specifically to the English language in England, or, more broadly, to ...

South African English South African English (SAfE, SAfEn, SAE, en-ZA) is the List of dialects of English, set of English language dialects native to South Africans. History British Empire, British settlers first arrived in the South African region in 1795, ...

, and

Caribbean English Caribbean English (CE, CarE) is a set of dialects of the English language which are spoken in the Caribbean and most countries on the Caribbean coasts of Central America and South America. Caribbean English is influenced by, but is distinct to ...

) or pok choi is a type of

Chinese cabbage Chinese cabbage (''Brassica rapa'', subspecies ''pekinensis'' and ''chinensis'') is either of two cultivar groups of leaf vegetables often used in Chinese cuisine: the Pekinensis Group (napa cabbage) and the Chinensis Group (bok choy). These v ...

(''

Brassica rapa ''Brassica rapa'' is a plant species that has been widely cultivated into many forms, including the turnip (a root vegetable), komatsuna, napa cabbage, bomdong, bok choy, and rapini. ''Brassica rapa'' subsp. ''oleifera'' is an oilseed c ...

'' subsp. ''chinensis'') cultivated as a

leaf vegetable Leaf vegetables, also called leafy greens, vegetable greens, or simply greens, are plant leaves eaten as a vegetable, sometimes accompanied by their petioles and shoots, if tender. Leaf vegetables eaten raw in a salad can be called salad gre ...

to be used as food. Varieties do not form heads and have green leaf blades with lighter bulbous bottoms instead, forming a cluster reminiscent of mustard greens. Its flavor is described as being between

spinach Spinach (''Spinacia oleracea'') is a leafy green flowering plant native to Central Asia, Central and Western Asia. It is of the order Caryophyllales, family Amaranthaceae, subfamily Chenopodioideae. Its leaves are a common vegetable consumed eit ...

and water chestnuts but slightly sweeter, with a mildly peppery undertone. The green leaves have a stronger flavor than the white bulb. ''Chinensis'' varieties are popular in

southern China Northern China () and Southern China () are two approximate regions that display certain differences in terms of their geography, demographics, economy, and culture. Extent The Qinling–Daba Mountains serve as the transition zone between ...

East Asia East Asia is a geocultural region of Asia. It includes China, Japan, Mongolia, North Korea, South Korea, and Taiwan, plus two special administrative regions of China, Hong Kong and Macau. The economies of Economy of China, China, Economy of Ja ...

, and

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

. Originally classified as ''Brassica chinensis'' by

Carl Linnaeus Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...

, they are now considered a subspecies of ''

. ''They are a member of the family

Brassicaceae Brassicaceae () or (the older but equally valid) Cruciferae () is a medium-sized and economically important Family (biology), family of flowering plants commonly known as the mustards, the crucifers, or the cabbage family. Most are herbaceous pla ...

Spelling and naming variations

Other than the term "Chinese cabbage", the most widely used name in North America for the ''chinensis'' variety is ''bok choy'' (

Cantonese Cantonese is the traditional prestige variety of Yue Chinese, a Sinitic language belonging to the Sino-Tibetan language family. It originated in the city of Guangzhou (formerly known as Canton) and its surrounding Pearl River Delta. While th ...

for "white vegetable") or ''siu bok choy'' (

, for "small white vegetable", as opposed to ''dai bok choy'' meaning "big white vegetable", referring to the larger

Napa cabbage Napa cabbage (''Brassica rapa'' subsp. ''pekinensis,'' or ''Brassica rapa'' Pekinensis Group) is a type of Chinese cabbage originating near the Beijing region of China that is widely used in East Asian cuisine. Since the 20th century, it has al ...

). It is also sometimes spelled as ''pak choi'', ''bok choi'', and ''pak choy''. In the UK, South Africa, and the

Caribbean The Caribbean ( , ; ; ; ) is a region in the middle of the Americas centered around the Caribbean Sea in the Atlantic Ocean, North Atlantic Ocean, mostly overlapping with the West Indies. Bordered by North America to the north, Central America ...

the term ''pak choi'' is used. Less commonly, the names ''Chinese chard'', ''Chinese mustard'', ''celery mustard'', and ''spoon cabbage'' are also used. There are two main types of bok choy, collectively called ''xiǎo bái cài'' ("small white vegetable") in Mandarin. One is white bok choy () with dark green blades and white stalks, which is primarily cultivated in

South China South China ( zh, s=, p=Huá'nán, j=jyut6 naam4) is a geographical and cultural region that covers the southernmost part of China. Its precise meaning varies with context. A notable feature of South China in comparison to the rest of China is ...

, and in

it is simply called ''baak choi'' (; the same characters pronounced ''bái cǎi'' by Mandarin speakers are preferably used for

). The other is green bok choy (; ; ; ; ) with light green stalks, which is more common in

East China East China () is a geographical region in the People’s Republic of China, mainly consisting of seven province-level administrative divisions, namely the provinces (from north to south) Shandong, Jiangsu, Anhui, Zhejiang, Jiangxi, Fujian, ...

; the young and tender plants of green bok choy is called baby bok choy (), which is less crisp and therefore may become too soft if overcooked. In Australia, the

New South Wales Department of Primary Industries New or NEW may refer to: Music * New, singer of K-pop group The Boyz * ''New'' (album), by Paul McCartney, 2013 ** "New" (Paul McCartney song), 2013 * ''New'' (EP), by Regurgitator, 1995 * "New" (Daya song), 2017 * "New" (No Doubt song), 1 ...

has redefined many transcribed names to refer to specific cultivars. They have introduced the word ''buk choy'' to refer to white bok choy and redefined ''pak choy'' to refer to green bok choy.

Uses

Cooking

Bok choy cooks in 2 to 3 minutes by steaming, stir-frying, or simmering in water (8 minutes if steamed whole). The leaves cook faster than the stem. It is often used in similar ways to other leafy vegetables such as spinach and cabbage. It can also be eaten raw. It is commonly used in salads.

Preserving

Dried bok choy is saltier and sweeter. Pickled bok choy remains edible for months. Immature plants have the sweetest, tenderest stems and leaves.

Nutritional value

The raw vegetable is 95% water, 2%

carbohydrates A carbohydrate () is a biomolecule composed of carbon (C), hydrogen (H), and oxygen (O) atoms. The typical hydrogen-to-oxygen atomic ratio is 2:1, analogous to that of water, and is represented by the empirical formula (where ''m'' and ''n'' ma ...

, 1%

protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residue (biochemistry), residues. Proteins perform a vast array of functions within organisms, including Enzyme catalysis, catalysing metab ...

and less than 1%

fat In nutrition science, nutrition, biology, and chemistry, fat usually means any ester of fatty acids, or a mixture of such chemical compound, compounds, most commonly those that occur in living beings or in food. The term often refers specif ...

. In a reference serving, raw bok choy provides 54 kilojoules (13 food

calorie The calorie is a unit of energy that originated from the caloric theory of heat. The large calorie, food calorie, dietary calorie, kilocalorie, or kilogram calorie is defined as the amount of heat needed to raise the temperature of one liter o ...

s) of

food energy Food energy is chemical energy that animals and humans derive from food to sustain their metabolism and muscular activity. Most animals derive most of their energy from aerobic respiration, namely combining the carbohydrates, fats, and protein ...

and is a rich source (20% or more of the

Daily Value In the U.S. and Canada, the Reference Daily Intake (RDI) is used in nutrition labeling on food and dietary supplement products to indicate the daily intake level of a nutrient that is considered to be sufficient to meet the requirements of 97� ...

, DV) of

vitamin A Vitamin A is a fat-soluble vitamin that is an essential nutrient. The term "vitamin A" encompasses a group of chemically related organic compounds that includes retinol, retinyl esters, and several provitamin (precursor) carotenoids, most not ...

(30% DV),

vitamin C Vitamin C (also known as ascorbic acid and ascorbate) is a water-soluble vitamin found in citrus and other fruits, berries and vegetables. It is also a generic prescription medication and in some countries is sold as a non-prescription di ...

(54% DV) and

vitamin K Vitamin K is a family of structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. The human body requires vitamin K for post-translational modification, post-synthesis modification of certain proteins ...

(44% DV), while providing

folate Folate, also known as vitamin B9 and folacin, is one of the B vitamins. Manufactured folic acid, which is converted into folate by the body, is used as a dietary supplement and in food fortification as it is more stable during processing and ...

vitamin B6 Vitamin B6 is one of the B vitamins, and is an essential nutrient for humans. The term essential nutrient refers to a group of six chemically similar compounds, i.e., "vitamers", which can be interconverted in biological systems. Its active f ...

and

calcium Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to it ...

in moderate amounts (10–17% DV).

History

Bok choy evolved from the

mustard plant The mustard plant is any one of several plant species in the genera ''Brassica'', ''Rhamphospermum'' and ''Sinapis'' in the family Brassicaceae (the mustard family). Mustard seed is used as a spice. Grinding and mixing the seeds with water, vin ...

in China, where it has been cultivated since the 5th century CE. It can be traced to the Yangtze River delta area, one of the world's oldest agricultural regions. It also has been traced to the

Yellow River The Yellow River, also known as Huanghe, is the second-longest river in China and the List of rivers by length, sixth-longest river system on Earth, with an estimated length of and a Drainage basin, watershed of . Beginning in the Bayan H ...

Valley where archaeologists found Chinese cabbage seeds dating back 6,000 years. As bok choy grew in use, it spread to other parts of Asia and was eventually cultivated in countries such as Japan, Malaysia, Indonesia, and the Philippines. Bok choy plantations were present in Japan and Malaya by the early 19th century. In Malaya, bok choy was not commonly consumed by the poor. The vegetable was introduced to Europe in the mid-18th century. A Swede named Osbeck brought bok choy seeds to Europe during the same time period Jesuit missionaries brought similar strains of the vegetable to German scientists working in Russia. Bok choy was introduced to North America in the 19th century, but did not gain in use for another century.

Gallery

Young Bok Choy in garden.jpg, Young bok choy plants in garden Bok Choy.JPG, Bok choy Bokchoy.jpg, White bok choy Baby Pak Choi (01).JPG, Green bok choy Pak-ch.jpg, Bok choy plant in side view Bokchoy flower.jpg, Bok choy has yellow flowers Jadeite Cabbage, National Palace Museum.jpg, Bok choy as depicted in art, the ''

Jadeite Cabbage The ''Jadeite Cabbage'' () or ''Jadeite Cabbage with Insects'' is a piece of jadeite carved into the shape of a napa cabbage head, and with a locust and katydid camouflaged in the leaves. It is part of the collection of the National Palace Museum ...

References

External links

* {{Authority control Asian vegetables Brassica Cantonese cuisine Leaf vegetables

Spelling and naming variations

Uses

Cooking

Preserving

Nutritional value

History

Gallery

See also

References

External links