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Bok choy (
American English American English, sometimes called United States English or U.S. English, is the set of varieties of the English language native to the United States. English is the most widely spoken language in the United States and in most circumstances i ...
, Canadian English, and Australian English), pak choi (
British English British English (BrE, en-GB, or BE) is, according to Lexico, Oxford Dictionaries, "English language, English as used in Great Britain, as distinct from that used elsewhere". More narrowly, it can refer specifically to the English language in ...
) or pok choi (''Brassica rapa'' subsp. ''chinensis'') is a type of
Chinese cabbage Chinese cabbage (''Brassica rapa'', subspecies ''pekinensis'' and ''chinensis'') can refer to two cultivar groups of leaf vegetables often used in Chinese cuisine: the Pekinensis Group (napa cabbage) and the Chinensis Group (bok choy). These ...
, used as food. ''Chinensis'' varieties do not form heads and have green leaf blades with lighter bulbous bottoms instead, forming a cluster reminiscent of
mustard greens ''Brassica juncea'', commonly brown mustard, Chinese mustard, Indian mustard, leaf mustard, Oriental mustard and vegetable mustard, is a species of mustard plant. Cultivar ''Brassica juncea'' cultivars can be divided into four major subgroups ...
. It has a flavor between spinach and water chestnuts but is 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 South China () 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 that most of its citizens are not n ...
,
East Asia East Asia is the eastern region of Asia, which is defined in both Geography, geographical and culture, ethno-cultural terms. The modern State (polity), states of East Asia include China, Japan, Mongolia, North Korea, South Korea, and Taiwan. ...
, and
Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical south-eastern region of Asia, consisting of the regions that are situated south of mainlan ...
. Being winter-hardy, they are increasingly grown in Northern Europe. Now considered a subspecies of ''
Brassica rapa ''Brassica rapa'' is a plant species growing in various widely cultivated forms including the turnip (a root vegetable); napa cabbage, bomdong, bok choy, and rapini. ''Brassica rapa'' subsp. ''oleifera'' is an oilseed which has many common n ...
'', this group was originally classified as its own species under the name ''Brassica chinensis'' by
Carl Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his Nobility#Ennoblement, ennoblement in 1761 as Carl von Linné#Blunt, Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalise ...
. They are a member of the family of Brassicaceae or Cruciferae, also commonly known as the mustards, the crucifers, or the cabbage family.


Spelling and naming variations

Other than the ambiguous term "Chinese cabbage", the most widely used name in North America for the ''chinensis'' variety is simply ''bok choy'' (
Cantonese Cantonese ( zh, t=廣東話, s=广东话, first=t, cy=Gwóngdūng wá) is a language within the Chinese (Sinitic) branch of the Sino-Tibetan languages originating from the city of Guangzhou (historically known as Canton) and its surrounding ar ...
for "white vegetable") or ''siu bok choy'' (
Cantonese Cantonese ( zh, t=廣東話, s=广东话, first=t, cy=Gwóngdūng wá) is a language within the Chinese (Sinitic) branch of the Sino-Tibetan languages originating from the city of Guangzhou (historically known as Canton) and its surrounding ar ...
, for "small white vegetable"; as opposed to ''dai bok choy'' meaning "big white vegetable" which refers 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 als ...
). It can also be spelled ''pak choi'', ''bok choi'', and ''pak choy''. In the UK and South Africa, the term ''pak choi'' is used. Less commonly, the descriptive English names ''Chinese chard'', ''Chinese mustard'', ''celery mustard'', and ''spoon cabbage'' are also employed. In Australia, the
New South Wales Department of Primary Industries The New South Wales Department of Primary Industries (DPI) is an agency of the New South Wales Government, responsible for the administration and development for agriculture, fisheries, aquaculture, forestry, and biosecurity in New South Wales. ...
has redefined many transcribed names to refer to specific cultivars. In addition, they have introduced the word ''buk choy'' to refer to a specific kind of cabbage distinct from ''pak choy''. In
Mandarin Chinese Mandarin (; ) is a group of Chinese (Sinitic) dialects that are natively spoken across most of northern and southwestern China. The group includes the Beijing dialect, the basis of the phonology of Standard Chinese, the official language ...
, the common name is 青菜 ''qing cai'' ("green vegetable") or 小白菜 ''xiao bai cai'' ("small white vegetable"). Although it is simply called 白菜 ''baak choi'' ("white vegetable") in
Cantonese Cantonese ( zh, t=廣東話, s=广东话, first=t, cy=Gwóngdūng wá) is a language within the Chinese (Sinitic) branch of the Sino-Tibetan languages originating from the city of Guangzhou (historically known as Canton) and its surrounding ar ...
, the same characters pronounced ''bai cai'' by Mandarin speakers are preferably used as the name for
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 als ...
. What is labelled Bok Choy may come in 2 forms: white bok choy () or Shanghai bok choy (). White bok choy is usually more expensive and has a dark crinkly colored leaves and stem portions that are white and crisp texture that is more suitable to Cantonese style cooking, stir fries, and simple or raw preparations. Shanghai bok choy has greater availability in most American markets, and has mild-tasting spoon-shaped leaves that are lighter green with stems that are jade green instead of white. The texture of Shanghai bok choy is less crisp, and it gets slimy if overcooked, but otherwise can often be substituted for white bok choy.


Culinary use

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


Nutritional value

See the table for the nutritional content of bok choy. The raw vegetable is 95% water, 2% carbohydrates, 1%
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...
and less than 1%
fat In nutrition, biology, and chemistry, fat usually means any ester of fatty acids, or a mixture of such compounds, most commonly those that occur in living beings or in food. The term often refers specifically to triglycerides (triple est ...
. In a reference serving, raw bok choy provides 54 kilojoules (13 food calories) of
food energy Food energy is chemical energy that animals (including humans) derive from their food to sustain their metabolism, including their muscular activity. Most animals derive most of their energy from aerobic respiration, namely combining the carbohy ...
and is a rich source (20% or more of the
Daily Value The Reference Daily Intake (RDI) used in nutrition labeling on food and dietary supplement products in the U.S. and Canada is the daily intake level of a nutrient that is considered to be sufficient to meet the requirements of 97–98% of healthy ...
, DV) of
vitamin A Vitamin A is a fat-soluble vitamin and an essential nutrient for humans. It is a group of organic compounds that includes retinol, retinal (also known as retinaldehyde), retinoic acid, and several provitamin A carotenoids (most notably ...
(30% DV),
vitamin C Vitamin C (also known as ascorbic acid and ascorbate) is a water-soluble vitamin found in citrus and other fruits and vegetables, also sold as a dietary supplement and as a topical 'serum' ingredient to treat melasma (dark pigment spots) ...
(54% DV) and
vitamin K Vitamin K refers to structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. The human body requires vitamin K for post-synthesis modification of certain proteins that are required for blood coagulation ...
(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 an ...
,
vitamin B6 Vitamin B6 is one of the B vitamins, and thus an essential nutrient. The term refers to a group of six chemically similar compounds, i.e., " vitamers", which can be interconverted in biological systems. Its active form, pyridoxal 5′-phosp ...
and
calcium Calcium is a chemical element with the 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 t ...
in moderate amounts (10–17% DV).


History

Bok choy evolved in China, where it has been cultivated since the 5th century AD.


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, Shanghai bok choy Pak-ch.jpg, Bok choy plant in side view Bokchoy flower.jpg, Bok choy has yellow flowers Bok choy green kimchi.jpg, Homemade
kimchi ''Kimchi'' (; ko, 김치, gimchi, ), is a traditional Korean side dish of salted and fermented vegetables, such as napa cabbage and Korean radish. A wide selection of seasonings are used, including '' gochugaru'' (Korean chili powder), ...
made from bok choy


See also

*
Gai lan Gai lan, kai-lan, Chinese broccoli, Chinese kale, or jie lan (''Brassica oleracea'' var. ''alboglabra'') is a leaf vegetable with thick, flat, glossy blue-green leaves with thick stems, and florets similar to (but much smaller than) broccoli. ...
*
Choy sum Choy sum (also spelled choi sum, choi sam in Cantonese; cai xin, caixin in Standard Mandarin) is a leafy vegetable commonly used in Chinese cuisine. It is a member of the genus ''Brassica'' of the mustard family, Brassicaceae (''Brassica rapa ...
*
List of leaf vegetables This is a list of vegetables which are grown or harvested primarily for the consumption of their leafy parts, either raw or cooked. Many vegetables with leaves that are consumed in small quantities as a spice such as oregano, for medicinal purpo ...
*''''


References


External links

* * {{Taxonbar, from=Q165178 Asian vegetables Brassica Cantonese cuisine Leaf vegetables