Basil is native to tropical regions from central Africa to Southeast Asia. It is a tender plant, and is used in cuisines worldwide. Depending on the species and cultivar, the leaves may taste somewhat like anise, with a strong, pungent, often sweet smell.
There are many varieties of Ocimum basilicum, as well as several related species or hybrids also called basil. The type used commonly as a flavor is typically called sweet basil (or Genovese basil), as opposed to Thai basil (O. basilicum var. thyrsiflora), lemon basil (O. × citriodorum), and holy basil (Ocimum tenuiflorum). While most common varieties of basil are treated as annuals, some are perennial in warm, tropical climates, including holy basil and a cultivar known as "African blue basil".
- 1 Etymology
- 2 Nomenclature and taxonomy
- 3 Culinary use
- 4 Other cultivars
- 5 Chemical components
- 6 Cultivation
- 7 Research
- 8 Folk medicine
- 9 Cultural aspects
- 10 List of the cultivars and their nomenclature
- 11 See also
- 12 References
- 13 External links
The name "basil" comes from Latin, basilius, and Greek βασιλικόν φυτόν (basilikón phutón), "royal/kingly plant".
Nomenclature and taxonomy
Most basils are cultivars of sweet basil.
- Anise basil, Licorice basil or Persian basil (O. basilicum 'Licorice')
- Cinnamon basil (Ocimum basilicum 'Cinnamon')
- Dark opal basil (Ocimum basilicum 'Dark Opal')
- Lettuce leaf basil (Ocimum basilicum 'Crispum')
- Purple basil (Ocimum basilicum 'Purpurescens')
- Rubin basil (Ocimum basilicum 'Rubin')
- Globe basil, dwarf basil, French basil (Ocimum basilicum 'Minimum')
- Thai basil (Ocimum basilicum thyrsifolium)
- African blue basil (Ocimum basilicum X O. kilimandscharicum)
- Spice basil (Ocimum basilicum X O. americanum), which is sometimes sold as holy basil)
- Lemon basil (Ocimum basilicum X O. americanum)
- Camphor basil, African basil (O. kilimandscharicum)
- Clove basil, also African basil (Ocimum gratissimum)
- Holy basil (Ocimum tenuiflorum, formerly known as O. sanctum)
|Nutritional value per 100 g (3.5 oz)|
|Energy||94 kJ (22 kcal)|
|Dietary fiber||1.6 g|
|Vitamin A equiv.||
|Pantothenic acid (B5)||
†Percentages are roughly approximated using US recommendations for adults. |
Source: USDA Nutrient Database
Basil is most commonly used fresh in recipes. In general, it is added at the last moment, as cooking quickly destroys the flavor. The fresh herb can be kept for a short time in plastic bags in the refrigerator, or for a longer period in the freezer, after being blanched quickly in boiling water. The dried herb also loses most of its flavor, and what little flavor remains tastes very different, with a weak coumarin flavor, like hay.
Basil is one of the main ingredients in pesto—a green Italian oil-and-herb sauce.
The most commonly used Mediterranean basil cultivars are "Genovese", "Purple Ruffles", "Mammoth", "Cinnamon", "Lemon", "Globe", and "African Blue". The Chinese also use fresh or dried basils in soups and other foods. In Taiwan, people add fresh basil leaves to thick soups. They also eat fried chicken with deep-fried basil leaves. Basil (most commonly Thai basil) is commonly steeped in cream or milk to create an interesting flavor in ice cream or chocolates (such as truffles). The leaves are not the only part of basil used in culinary applications, the flower buds have a more subtle flavor and they are edible.
Several other basils, including some other Ocimum species, are grown in many regions of Asia. Most of the Asian basils have a clove-like flavor that is, in general, stronger than the Mediterranean basils. The most notable is the holy basil or tulsi, a revered home-grown plant in India and Nepal.
Lemon basil has a strong lemony smell and flavor very different from those of other varieties because it contains a chemical called citral. It is widely used in Indonesia, where it is called kemangi, served raw together with raw cabbage, green beans, and cucumber as an accompaniment to fried fish or duck. Its flowers, when broken up, are a zesty salad condiment.
The various basils have such different scents because the herb has a number of different essential oils in different proportions for various cultivars. The essential oil from European basil contains high concentrations of linalool and methyl chavicol (estragole), in a ratio of about 3:1. Other constituents include: 1,8-cineole, eugenol, and myrcene, among others. The clove scent of sweet basil is derived from eugenol. The aroma profile of basil includes 1,8-cineole and methyl eugenol.
Most culinary and ornamental basils are cultivars of the species Ocimum basilicum, but other species are also grown and there are many hybrids between species. Traditionally a green plant, some varieties, such as 'Purple Delight' have leaves that appear purple.
Basil grows between 30–130 cm (12–51 in) tall, with opposite, light green, silky leaves 3–11 cm (1.2–4.3 in) long and 1–6 cm (0.39–2.36 in) broad. The flowers are small, white in color and arranged in a terminal spike. Unusual among Lamiaceae, the four stamens and the pistil are not pushed under the upper lip of the corolla, but lie over the inferior lip. After entomophilous pollination, the corolla falls off and four round achenes develop inside the bilabiate calyx.
Basil is sensitive to cold, with best growth in hot, dry conditions. It behaves as an annual if there is any chance of a frost. However, due to its popularity, basil is cultivated in many countries around the world. Production areas include countries in the Mediterranean area, those in the temperate zone, and others in subtropical climates.
In Northern Europe, Canada, the northern states of the U.S., and the South Island of New Zealand it will grow best if sown under glass in a peat pot, then planted out in late spring/early summer (when there is little chance of a frost). Additionally, it may be sown in soil once chance of frost is past. It fares best in well-drained, sunny exposure.
Although basil grows best outdoors, it can be grown indoors in a pot and, like most herbs, will do best on a sun-facing windowsill. It should be kept away from extremely cold drafts, and grows best in strong sunlight, therefore a greenhouse or row cover is ideal if available. It can, however, be grown even in a basement, under fluorescent lights.
If its leaves have wilted from lack of water, it will recover if watered thoroughly and placed in a sunny location. Yellow leaves towards the bottom of the plant are an indication that the plant has been stressed; usually this means that it needs less water, or less or more fertilizer.
In sunnier climates such as Southern Europe, the southern states of the U.S., the North Island of New Zealand, and Australia, basil will thrive when planted outside. It also thrives over the summertime in the central and northern United States, but dies out when temperatures reach freezing point. It will grow back the next year if allowed to go to seed. It will need regular watering, but not as much attention as is needed in other climates.
Basil can also be propagated reliably from cuttings with the stems of short cuttings suspended for two weeks or so in water until roots develop.
Once a stem produces flowers, foliage production stops on that stem, the stem becomes woody, and essential oil production declines. To prevent this, a basil-grower may pinch off any flower stems before they are fully mature. Because only the blooming stem is so affected, some stems can be pinched for leaf production, while others are left to bloom for decoration or seeds.
Once the plant is allowed to flower, it may produce seed pods containing small black seeds, which can be saved and planted the following year. Picking the leaves off the plant helps promote growth, largely because the plant responds by converting pairs of leaflets next to the topmost leaves into new stems.
Basil is popularly recommended as a companion plant to the tomato. Common claims are that basil may deter pests or improve tomato flavor. However, in double-blind taste tests, basil did not significantly affect the taste of tomatoes when planted adjacent to them.
Basil suffers from several plant pathogens that can ruin the crop and reduce yield. Fusarium wilt is a soil-borne fungal disease that will quickly kill younger basil plants. Seedlings may be killed by Pythium damping off.
A common foliar disease of basil is gray mold caused by Botrytis cinerea; it can cause infections post-harvest and is capable of killing the entire plant. Black spot can be seen on basil foliage and is caused by the fungi genus Colletotrichum.
More recently, downy mildew of basil caused by Peronospora belbahrii has been a huge problem for commercial producers and home growers. The disease was first reported in Italy in 2004. It was reported in the U.S. in 2007 and 2008 and has been steadily increasing in prevalence, distribution, and economic importance since then.
There are many rituals and beliefs associated with basil. The French sometimes call basil "l'herbe royale" ("royal herb"), while in Welsh it has the synonymous name "brenhinllys". Jewish folklore suggests it adds strength while fasting. In Portugal, dwarf bush basil is traditionally presented in a pot, together with a poem and a paper carnation, to a sweetheart, on the religious holidays of Saint John and Saint Anthony. However, basil represented hatred in ancient Greece, and European lore sometimes claims that basil is a symbol of Satan. African legend claims that basil protects against scorpions, while the English botanist Culpeper cites one "Hilarius, a French physician" as affirming it as common knowledge that smelling basil too much would breed scorpions in the brain.
Basil has religious significance in the Greek Orthodox Church, where it is used to sprinkle holy water. The Bulgarian Orthodox Church, Serbian Orthodox Church, Macedonian Orthodox Church and Romanian Orthodox Church use basil (Bulgarian and Macedonian: босилек; Romanian: busuioc, Serbian: босиљак) to prepare holy water and pots of basil are often placed below church altars.
In Europe, basil is placed in the hands of the dead to ensure a safe journey. In India, they place it in the mouth of the dying to ensure they reach God. The ancient Egyptians and ancient Greeks believed it would open the gates of heaven for a person passing on.
In Boccaccio's Decameron a memorably morbid tale (novella V) tells of Lisabetta, whose brothers slay her lover. He appears to her in a dream and shows her where he is buried. She secretly disinters the head, and sets it in a pot of basil, which she waters with her daily tears. Shortly after the pot is taken from her by her brothers, she dies of grief. Boccaccio's tale is the source of John Keats' poem Isabella or The Pot of Basil – which in turn inspired the paintings Isabella (Millais painting) and Isabella and the Pot of Basil. A similar story is told of the Longobard queen, Rosalind.
In certain central regions of Mexico, basil is used to draw fortune by hanging a bunch of the plant in the door or window of the shop. The plant's growth reflects the wealth of the business, showing how dutifully the owner cares for his shop and the herb.
List of the cultivars and their nomenclature
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Acyclic monoterpenoid trienes such as p-myrcene and configurational isomers of p- ocimene are found in the oils of basil (leaves of Ocimum basilicum, Labiatae), bay (leaves of Fimenta acris, Myrtaceae), hops (strobiles of Humulus lupulus, ...
- Md Shahidul Islam (4 February 2011). Transient Receptor Potential Channels. Springer. pp. 50–. ISBN 978-94-007-0265-3. Archived from the original on 12 October 2013. Retrieved 2 August 2013.
Eugenol is a vanilloid contained in relatively high amounts in clove oil from Eugenia caryophyllata, as well as cinnamon leaf oil (Cinnamomum zeylanicum) and oil from the clove basil Ocimum gratissimum. While eugenol is often referred to as ...
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- Hiltunen, Raimo; Holm, Yvonne (2 September 2003). Basil: The Genus Ocimum. CRC Press. ISBN 9780203303771. Archived from the original on 18 April 2017.
- Bomford, Michael (May 2009). "Do Tomatoes Love Basil but Hate Brussels Sprouts? Competition and Land-Use Efficiency of Popularly Recommended and Discouraged Crop Mixtures in Biointensive Agriculture Systems". Journal of Sustainable Agriculture. 33 (4): 396–417. doi:10.1080/10440040902835001. Archived from the original on 18 September 2016. Retrieved 17 September 2016.
- Bomford, Michael (May 2004), Yield, Pest Density, and Tomato Flavor Effects of Companion Planting in Garden-scale Studies Incorporating Tomato, Basil, and Brussels Sprout, West Virginia University Libraries
- Garibaldi, A., Minuto, A., Minuto, G., Gullino, M.L., 2004. First Report of Downy Mildew on Basil (Ocimum basilicum) in Italy. Plant Disease 88, 312–312
- Roberts, P.D., Raid, R.N., Harmon, P.F., Jordan, S.A., Palmateer, A.J., 2009. First Report of Downy Mildew Caused by a Peronospora sp. on Basil in Florida and the United States. Plant Disease 93, 199–199.
- Wick, R.L., Brazee, N.J., 2009. First Report of Downy Mildew Caused by a Peronospora Species on Sweet Basil (Ocimum basilicum) in Massachusetts. Plant Disease 93, 318–318.
- Ceuppens, S., Delbeke, S., De Coninck, D., Boussemaere, J., Boon, N., & Uyttendaele, M. (2015). Characterization of the Bacterial Community Naturally Present on Commercially Grown Basil Leaves: Evaluation of Sample Preparation Prior to Culture-Independent Techniques. International Journal of Environmental Research and Public Health, 12(8), 10171–10197. http://doi.org/10.3390/ijerph120810171
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The name "basil" comes from the Greek word for "king" — so greatly did the Greeks esteem this king of herbs. Herbe royale, the French respectfully call it. In Italy basil serves the goddess Love; a sprig of it worn by a suitor bespeaks his loving ...
- Marcus Zuerius Boxhorn (1654). Originum gallicorum Liber. Archived from the original on 12 October 2013. Retrieved 2 August 2013.
Brenhinllys dqf, basil, Ocimum
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[herb] Brenhinllys dot', basil. Wild, or small basil
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During one of their talks, Satan told God to pick a bunch of basil flowers, lay them under his pillow, and sleep on them overnight. In the morning, God should take them to a virgin, have her smell them, and she would conceive. This one time ...
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A basil-like tulsi leaf, which is considered to be a holy plant, may be placed in the mouth as well.
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- Copetta, Andrea; Lingua, G; Berta, G; et al. (2006). "Effects of three AM fungi on growth, distribution of glandular hairs, and essential oil production in Ocimum basilicum L. var. Genovese". Mycorrhiza. 16 (7): 485–494. doi:10.1007/s00572-006-0065-6. PMID 16896796.
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