Latin name: Ocimum basilicum
Region name : Kemangi, Kemangen, Selasih, Surawung
Family name : Lamiaceae (mints)
Basil is best known as a culinary herb prominently featured in Italian cuisine, and also plays a major role in north-east Asian cuisine of Taiwan and south-east Asian cuisines of Thailand, Vietnam, Cambodia, and Laos. 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 species hybrids also called basil. The type used in Italian food is typically called sweet basil, as opposed to Thai basil (ocimum basilicum var.thyrsiflora), lemon basil (ocimum citriodorum) and holy basil (ocimum tenuiflorum), which are used in Asia. 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 is originally native to India and other tropical regions of Asia, having been cultivated there for more than 5,000 years.
Etymology :
The word basil comes from the Greek (basileus), meaning "king", as it is believed to have grown above the spot where St. Constantine and Helen discovered the Holy Cross. The Oxford English Dictionary quotes speculations that basil may have been used in "some royal unguent, bath, or medicine". Basil is still considered the "king of herbs" by many cookery authors.
Cultivation :
Basil grows between 30–130 cm tall, with opposite, light green, silky leaves 3–11 cm long and 1–6 cm 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 very sensitive to cold, with best growth in hot, dry conditions. It behaves as an annual if there is any chance of a frost. 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 a well-drained sunny spot.
Although basil grows best outdoors, it can be grown indoors in a pot and, like most herbs, will do best on an equator-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. They 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 very reliably from cuttings in exactly the same manner as 'Busy Lizzie' (Impatiens), with the stems of short cuttings suspended for two weeks or so in water until root 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.
Other basils :
Several other basils, including some other Ocimum species, are grown in many regions of Asia. Most of the Asian basils have a clove-like flavour that is generally stronger than the Mediterranean basils. The most notable is the holy basil or tulsi, a revered home-grown plant in India and Nepal. In China, the local cultivar is called (traditional Chinese: pinyin: jiǔ céng tǎ; literally "nine-level pagoda"), while the imported varieties are called (traditional Chinese: pinyin: luó lè) or (traditional Chinese: pinyin: bā xī lǐ), although often refers to a different plant—parsley.
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 and 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.
Basil seeds :
When soaked in water, the seeds of several basil varieties become gelatinous, and are used in Asian drinks and desserts such as falooda or sherbet. They are used for their medicinal properties in Ayurveda, the traditional medicinal system of India and Siddha medicine, a traditional Tamil system of medicine. They are also used as popular drinks in Southeast Asia.
Chemical components :
The various basils have such different scents because the herb has a number of different essential oils which come together in different proportions for various breeds. The strong clove scent of sweet basil is derived from eugenol, the same chemical as actual cloves. The citrus scent of lemon basil and lime basil reflects their higher portion of citral, which causes this effect in several plants including lemon mint, and of limonene, which gives actual lemon peel its scent. African blue basil has a strong camphor smell because it contains camphor and camphene in higher proportions. Licorice basil contains anethole, the same chemical that makes anise smell like licorice, and in fact is sometimes called "anise basil."
Other chemicals that help to produce the distinctive scents of many basils, depending on their proportion in each specific breed, include:
citronellol (scented geraniums, roses, and citronella.
linalool(a flowery scent also in coriander)
myrcene (bay leaf, myrcia)
pinene (which is, as the name implies, the chemical which gives pine oil its scent)
ocimene
terpineol
linalyl acetate
fenchyl acetate
trans-ocimene
1,8-cineole
camphor octanane
methyl eugenol
eugenol
beta-caryophyllene
Based on chemical content, basils can be divided into four groups:
1) French basil, contains lower amounts of phenols.
2) exotic basil, contains methyl chavicol (40-80%)
3) methyl cinnamate basil, contains methyl cinnamate - ether 90%
4) eugenol basil, contains eugenol
These groupings are not used by gardeners.
Basil and oregano contain large amounts of (E)-beta-caryophyllene (BCP), which might have a use in treating inflammatory bowel diseases and arthritis. BCP is the only product identified in nature that activates CB2 selectively; it interacts with one of two cannabinoid receptors (CB2), blocking chemical signals that lead to inflammation, without triggering cannabis's mood-altering effects.
Diseases :
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 also be killed by Pythium damping off.
A common foliar disease of basil is gray mold caused by Botrytis cinerea; it can also cause infections post-harvest and is capable of killing the entire plant. Black spot can also be seen on basil foliage and is caused by the fungi genus Colletotrichum.
Potential health effects :
Recently, there has been much research into the health benefits conferred by the essential oils found in basil. Scientific studies in vitro have established that compounds in basil oil have potent anti oxidant, anti cancer, anti viral, and anti microbial properties. In addition, basil has been shown to decrease the occurrence of platelet aggregation and experimental thrombus in mice. It is traditionally used for supplementary treatment of stress, asthma and diabetes in India. In Siddha medicine, it is used for treating pimples on the face, but noted that intake of the seeds in large quantities is harmful for the brain.
Basil, like other aromatic plants such as fennel and tarragon tree, contains estragole, a known carcinogen and teratogen in rats and mice. While human effects are currently unstudied, extrapolation using body weight from the rodent experiments indicates that 100–1000 times the normal anticipated exposure still probably produces a minimal cancer risk.
Continue to : - Content List
- Prev :KiTolod
- Next :Kava Kava