Opuntia ficus-indica, the Indian fig opuntia, fig opuntia, or prickly pear, is a species of cactus that has long been a domesticated crop plant grown in agricultural economies throughout arid and semiarid parts of the world. O. ficus-indica is the most widespread and most commercially important cactus. It is grown primarily as a fruit crop, and also for the vegetable nopales and other uses. Cacti are good crops for dry areas because they efficiently convert water into biomass. O. ficus-indica is the most widespread of the long-domesticated cactuses. Opuntia species hybridize easily, but the wild origin of O. ficus-indica is likely to have been in central Mexico, where its closest genetic relatives are found.
Names Most culinary references to the "prickly pear" refer to this species. The Spanish name tuna is also used for the fruit of this cactus and for Opuntia in general; according to Alexander von Humboldt, it was a word of Taino origin taken into the Spanish language around 1500. Common English names for the plant and its fruit are Indian fig opuntia, Barbary fig, cactus pear, prickly pear, and spineless cactus, among many others. In Mexican Spanish, the plant is called nopal, a name that may be used in American English as culinary terms. Peninsular Spanish mostly uses higo chumbo for the fruit and chumbera for the plant. In Greek, the plant is called φραγκοσυκιά and the fruit φραγκόσυκο, literally "Frankish fig", a label historically applied to foreign produce. In Cyprus, the fruits are commonly known as παπουτσόσυκα and the plant as παπουτσοσυκιά; the name is glossed in Cypriot dialect sources and popularly explained as "shoe figs" in reference to the thick, shoe-like pads.
Description
O. ficus-indica is polyploid, hermaphroditic, and autogamous. As Opuntia species grow in semiarid environments, the main limiting factor in their environment is water. They have developed several adaptations to dry conditions, notably succulence. A perennial shrub, O. ficus-indica can grow up to 5 m in height, with thick, succulent, and oblong to spatulate stems called cladodes. It has a water-repellent and sun-reflecting waxy epidermis. Cladodes 1–2 years old produce flowers, with the fruit's colours ranging from pale green to deep red. The plants flower in three distinct colours: white, yellow, and red. The flowers first appear in early May through the early summer in the Northern Hemisphere, and the fruits ripen from August through October. The fruits are typically eaten, minus the thick outer skin, after chilling in a refrigerator for a few hours. They have a taste similar to sweet watermelon. The bright red/purple or white/yellowish flesh contains many tiny hard seeds that are usually swallowed but should be avoided by those who have problems digesting seeds.
Uses
Human consumption
O. ficus-indica is consumed widely as food. The fruits are commercialized in many parts of the world, eaten raw, and have one of the highest concentrations of vitamin C of any fruit. The young "leaves" (actually cladodes, which technically are stems) are cooked and eaten as a vegetable known as nopalitos. They are sliced into strips, skinned or unskinned, and fried with eggs and jalapeños, served as a breakfast treat. They have a texture and flavor like green beans. The fruits or leaves can be boiled, used raw, or blended with fruit juice, cooked on a frying pan, used as a side dish with chicken, or added to tacos. Jams and jellies are produced from the fruit, which resemble strawberries and figs in color and flavor. Mexicans use Opuntia fruit to make an alcoholic drink called colonche.In Sicily, a prickly pear-flavored liqueur called ficodi is produced, flavored somewhat like a medicinal aperitif. In Malta, a liqueur called bajtra (the Maltese name for prickly pear) is made from this fruit, which grows wild in almost every field. On the island of Saint Helena, the prickly pear also gives its name to locally distilled liqueur, Tungi Spirit.
Fodder The cattle industry of the Southwest United States has begun to cultivate O. ficus-indica, both as a feed source for cattle and a boundary fence. Cattle are normally fed a spineless variety of the cactus. The cactus pads are low in dry matter and crude protein but useful as a supplement in drought conditions. In addition to the food value, the moisture content adequately eliminates watering the cattle during drought. Numerous wildlife species use the prickly pear for food. In severe drought years, the spines of wild prickly pear are sometimes burned off for emergency feed.
Soil erosion prevention O. ficus-indica is planted in hedges to provide a cheap but effective erosion control in the Mediterranean basin. Under those hedges and adjacent areas, soil physical properties, nitrogen, and organic matter are considerably improved. The structural stability of the soil is enhanced, runoff and erosion are reduced, and water storage capacity and permeability are enhanced. Prickly pear plantations also positively impact the plant growth of other species by improving severe environmental conditions, which facilitate the colonization and development of herbaceous species. O. ficus-indica is being advantageously used in Tunisia and Algeria to slow and direct sand movement and enhance the restoration of vegetative cover, thus minimizing deterioration of built terraces with its deep and strong rooting system.
Other The plant may be used as an ingredient in adobe to bind and waterproof roofs. O. ficus-indica (as well as other species in Opuntia and Nopalea) is cultivated in nopalries to serve as a host plant for cochineal insects, which produce desirable red and purple dyes, a practice dating to the pre-Columbian era. Mucilage from prickly pear may work as a natural, non-toxic dispersant for oil spills. Mexico has a semicommercial pilot plant for biofuel production from Opuntia biomass, in operation since 2016.
Cultivation
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