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Nigella sativa
Species of annual flowering plant in the family Ranunculaceae From Wikipedia, the free encyclopedia
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Nigella sativa (common names, black caraway, black cumin, nigella or kalonji)[2][3][4] is an annual flowering plant in the family Ranunculaceae, native to western Asia (Arabia, the Levant, Cyprus, Turkey, Iran and Iraq), and eastern Europe (Bulgaria and Romania). It is naturalized over parts of Europe, northern Africa, and east to Myanmar.[1] It is used as a spice in various food preparations, especially in Arab and Halal cuisines.[5]
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Etymology
The genus name Nigella is a diminutive of the Latin niger "black", referring to the seed color.[5][6] The specific epithet sativa means "cultivated".[5]
Common names
In food preparation, Nigella sativa and its seeds are variously called black caraway, black seed, black cumin, fennel flower, nigella, nutmeg flower, Roman coriander,[2][5] or black onion seed.[7]
Black seed and black caraway may also refer to Elwendia persica, which is also known as Bunium persicum.[8]
Description
N. sativa grows to 20–30 cm (7.9–11.8 in) tall, with finely divided, linear (but not thread-like) leaves. The flowers are delicate, and usually coloured pale blue and white, with five to ten petals. The fruit is a large and inflated capsule composed of three to seven united follicles, each containing numerous seeds which are used as spice, sometimes as a replacement for Bunium bulbocastanum (also called black cumin).[5]
Fruits
Seeds
Close-up of the seeds
Culinary uses
The seeds of N. sativa are used as a spice in many cuisines.[5] In Palestine, the seeds are ground to make bitter qizha paste.[9]
The dry-roasted seeds flavour curries, vegetables, and pulses. They can be used as a seasoning in recipes with pod fruit, vegetables, salads, and poultry. In some cultures, the black seeds are used to flavour bread products. They are used as a part of the spice mixture panch phoron (meaning a mixture of five spices) in many recipes in Bengali cuisine and most recognizably in some variations of naan, such as nân-e barbari.[10] Nigella is also used in tresse cheese, a braided string cheese called majdouleh or majdouli in the Middle East.
In the United States, the Food and Drug Administration classifies Nigella sativa as Generally Recognized as Safe (GRAS) for use as a spice, natural seasoning, or flavouring.[11]
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History
Archaeological evidence about the earliest cultivation of N. sativa dates back three millennia, with N. sativa seeds found in several sites from ancient Egypt, including the Tomb of Tutankhamun.[4][12] Seeds were found in a Hittite flask in Turkey from the second millennium BC.[13]
N. sativa may have been used as a condiment of the Old World to flavour food.[5][12] The Persian physician Avicenna described N. sativa as a treatment for dyspnea in his The Canon of Medicine.[14] N. sativa was used in the Middle East as a traditional medicine.[15]
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Chemistry
Oils are 32% to 40% of the total composition of N. sativa seeds.[4][16] N. sativa oil contains linoleic acid, oleic acid, palmitic acid, and trans-anethole, and other minor constituents, such as nigellicine, nigellidine, nigellimine, and nigellimine N-oxide.[4] Aromatics include thymoquinone, dihydrothymoquinone, p-cymene, carvacrol, α-thujene, thymol, α-pinene, β-pinene and trans-anethole.[4] Protein and various alkaloids are present in the seeds.[4]
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Folk medicine
Despite considerable use of N. sativa in folk medicine practices in Africa and Asia, there is insufficient high-quality clinical evidence to indicate that consuming the seeds or oil can be used to treat human diseases.[4] One meta-analysis of clinical trials found weak evidence that N. sativa has a short-term benefit on lowering systolic and diastolic blood pressure.[17] A 2016 review indicated that N. sativa supplementation may lower total cholesterol, LDL, and triglyceride levels.[18]
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See also
- Nigella damascena (love-in-a-mist)
References
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