Sphenostylis | |
---|---|
![]() | |
Sphenostylis angustifolia | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fabales |
Family: | Fabaceae |
Subfamily: | Faboideae |
Tribe: | Phaseoleae |
Subtribe: | Phaseolinae |
Genus: | Sphenostylis E.Mey. (1836) |
Species [1] | |
7; see text |
Sphenostylis is a genus of flowering plants in the legume family, Fabaceae. It includes seven species of prostrate, climbing or erect herbs or subshrubs. They are native to sub-Saharan Africa, where they grow in seasonally-dry tropical and subtropical open forest, woodland, bushland and thicket, wooded grassland, and grassland, mainly in the Zambezian and Sudanian regions. [1] It belongs to the subfamily Faboideae. Sphenostylis contains several species useful as food sources including Sphenostylis stenocarpa . Sphenostylis stenocarpa is characterized by its fruit (legume) and stipulated leaves.
Seven species are accepted: [1]
Three species of Sphenostylis are important food sources in Africa, including the under-exploited African Yam Bean or Sphenostylis stenocarpa, which can be consumed as dry cooked seeds or tuber. Seeds are usually added to soups, made into sauces, or milled into flour. [2] The African yam bean is grown in countries of West Africa such as Cameroon, Cote d’Ivoire, Ghana, Nigeria, and Togo. [2] The tuber grows as the root source, while the yam bean develops into the pod containing 20-30 seeds found above the ground. These seeds can be found in colors including brown, black, and red varieties. [3] It grows as a vine to heights of about 3m and produces brightly colored flowers in 100–150 days. [2]
This yam bean is a very useful crop because of the extreme conditions it can thrive in, including high rainfall, acidity, and infertile soils, and its resistance to several major crop pests. It is also useful because of its high nitrogen-fixing ability, replenishing soil it is grown in of its nitrogen. [2] In West Africa, the seeds of the African yam bean are primarily used, while in the East and Central regions of Africa, the tubers are primarily used. [4]
The African yam bean is a legume that is rich in protein and starch and an important source of calcium and amino acids. [3] It contains amino acids that are important for the development in early pre-school and school aged children and also those required for adults. [3] The yam bean is a useful source of nutrients for many African communities with a nutritional value comparable to that of the soybean, although the cooking time for the yam bean is much longer (4–6 hours). However, some health problems have been discovered in relation to consumption of these beans including flatulence, stomach cramps, diarrhea and dizziness. [4] These problems result from the way they are usually cooked.
Although little research has been devoted to this plant, some important studies have been conducted including one on how to relieve these health problems. Studies show problems are resolved when the yam bean seeds are exposed to pre-cooking treatments such as lactic acid fermented using a low-level technological process. The fermentation method also reduces the amount of time and energy to produce a viable food product from the yam bean. [4] In addition to research on cooking treatments, some research has been conducted on the genetic variability of the plant. The yam bean has a high level of genetic variability, which will be useful during the hybridization of the plant in order to increase food production and sustainability. While the yam bean has been subject to cultivation, there has been little artificial selection on specific traits. [2] If the yam bean could be grown in large quantities, this crop could be the important source of protein needed by the people of sub-Saharan Africa.
A bean is the seed of any plant in the legume family (Fabaceae) used as a vegetable for human consumption or animal feed. The seeds are often preserved through drying, but fresh beans are also sold. Most beans are traditionally soaked and boiled, but they can be cooked in many different ways, including frying and baking, and are used in many traditional dishes throughout the world. The unripe seedpods of some varieties are also eaten whole as green beans or edamame, but fully ripened beans contain toxins like phytohemagglutinin and require cooking.
The pinto bean is a variety of common bean. In Spanish they are called frijoles pintos. It is the most popular bean by crop production in Northern Mexico and the Southwestern United States, and is most often eaten whole, or mashed and then refried. Prepared either way, it is a common filling for burritos, tostadas, or tacos in Mexican cuisine, also as a side or as part of an entrée served with a side tortilla or sopaipilla in New Mexican cuisine.
Sprouting is the natural process by which seeds or spores germinate and put out shoots, and already established plants produce new leaves or buds, or other structures experience further growth.
Legumes are plants in the family Fabaceae, or the fruit or seeds of such plants. When used as a dry grain for human consumption, the seeds are also called pulses. Legumes are grown agriculturally, primarily for human consumption, but also as livestock forage and silage, and as soil-enhancing green manure. Well-known legumes include beans, chickpeas, peanuts, lentils, lupins, mesquite, carob, tamarind, alfalfa, and clover. Legumes produce a botanically unique type of fruit – a simple dry fruit that develops from a simple carpel and usually dehisces on two sides.
Vigna subterranea is a member of the family Fabaceae. Its name is derived from the Bambara ethnic group. The plant originated in West Africa. As a food and source of income, the Bambara groundnut is considered to be the third most important leguminous crop in those African countries where it is grown, after peanut and cowpea. The crop is mainly cultivated, sold and processed by women, and is, thus, particularly valuable for female subsistence farmers.
Macrotyloma uniflorum is a legume native to tropical southern Asia, known for its distinct taste and texture, widely used legume in many cuisines. It is also known for human consumption for its rich nutrients and reputed medicinal properties. It is commonly grown for horse feed, hence the name “horse gram”. Horse gram grown in parts of India, as well as Nepal, Malaysia, Sri Lanka, and is introduced to the West Indies. It is consumed whole, sprouted, or ground. It is consumed in many parts of India and is also known as a superfood. Horse gram is also allowed to be eaten on some Hindu fasting days. Medical uses of these legumes have been discussed and is described in the Ayurveda.
Vicia is a genus of over 240 species of flowering plants that are part of the legume family (Fabaceae), and which are commonly known as vetches. Member species are native to Europe, North America, South America, Asia and Africa. Some other genera of their subfamily Faboideae also have names containing "vetch", for example the vetchlings (Lathyrus) or the milk-vetches (Astragalus). The lentils are included in genus Vicia, and were formerly classified in genus Lens. The broad bean is sometimes separated in a monotypic genus Faba; although not often used today, it is of historical importance in plant taxonomy as the namesake of the order Fabales, the Fabaceae and the Faboideae. The tribe Vicieae in which the vetches are placed is named after the genus' current name. The true peas (Pisum) are among the closest living relatives of vetches.
The winged bean, also known as cigarillas, Goa bean, four-angled bean, four-cornered bean, manila bean, princess bean, star bean, kamrangi bean, pea, or dragon bean, is a tropical herbaceous legume plant.
Vigna umbellata, previously Phaseolus calcaratus, is a warm-season annual vine legume with yellow flowers and small edible beans. It is commonly called ricebean or rice bean. To date, it is little known, little researched and little exploited. It is regarded as a minor food and fodder crop and is often grown as intercrop or mixed crop with maize, sorghum or cowpea, as well as a sole crop in the uplands, on a very limited area. Like the other Asiatic Vigna species, ricebean is a fairly short-lived warm-season annual. Grown mainly as a dried pulse, it is also important as a fodder, a green manure and a vegetable. Ricebean is most widely grown as an intercrop, particularly of maize, throughout Indo-China and extending into southern China, India, Nepal and Bangladesh. In the past it was widely grown as lowland crop on residual soil water after the harvest of long-season rice, but it has been displaced to a great extent where shorter duration rice varieties are grown. Ricebean grows well on a range of soils. It establishes rapidly and has the potential to produce large amounts of nutritious animal fodder and high quality grain.
Vigna aconitifolia is a drought-resistant legume, commonly grown in arid and semi-arid regions of India. It is commonly called mat bean, moth bean, matki or dew bean. The pods, sprouts and protein-rich seeds of this crop are commonly consumed in India. Moth bean can be grown on many soil types, and can also act as a pasture legume.
Apios americana, sometimes called the American groundnut, potato bean, hopniss, Indian potato, hodoimo, America-hodoimo, cinnamon vine, or groundnut is a perennial vine that bears edible beans and large edible tubers.
Yam is the common name for some plant species in the genus Dioscorea that form edible tubers.
Tylosema esculentum, with common names gemsbok bean and marama bean or morama bean, is a long-lived perennial legume native to arid areas of southern Africa. Stems grow at least 3 metres (9.8 ft), in a prostrate or trailing form, with forked tendrils that facilitate climbing. A raceme up to 25 millimetres (1 in) long, containing many yellow-orange flowers, ultimately produces an ovate to circular pod, with large brownish-black seeds.
Erythrina edulis (basul) is a nitrogen fixing tree that is native to the Andean region from western Venezuela to southern Bolivia. Nowadays it is known in Venezuela as "frijol mompás", in Bolivia, Peru and Northwest Argentina as "psonay", "pajuro", "sachaporoto del basul" or "poroto del sacha", in Colombia as "chachafruto", "balú", "baluy" or "sachaporoto" and in Ecuador as "guato". Although it is widely known, it is not commonly cultivated. Future research is needed, especially in agroforestry. Basul is a legume and so it produces protein-rich beans covered in pods which can be used for human or animal nutrition. The leaves and branches can be used as fodder. Besides the agricultural aspects, Erythrina edulis can also be used as a fence plant.
This is a categorically organized list of foods. Food is any substance consumed to provide nutritional support for the body. It is produced either by plants, animals, or fungi, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, and minerals. The substance is ingested by an organism and assimilated by the organism's cells in an effort to produce energy, maintain life, or stimulate growth.
A staple food, food staple, or simply staple, is a food that is eaten often and in such quantities that it constitutes a dominant portion of a standard diet for an individual or a population group, supplying a large fraction of energy needs and generally forming a significant proportion of the intake of other nutrients as well. For humans, a staple food of a specific society may be eaten as often as every day or every meal, and most people live on a diet based on just a small variety of food staples. Specific staples vary from place to place, but typically are inexpensive or readily available foods that supply one or more of the macronutrients and micronutrients needed for survival and health: carbohydrates, proteins, fats, minerals, and vitamins. Typical examples include grains, seeds, nuts and root vegetables. Among them, cereals, legumes and tubers account for about 90% of the world's food calorie intake.
Rhizopus oryzae is a filamentous heterothallic microfungus that occurs as a saprotroph in soil, dung, and rotting vegetation. This species is very similar to Rhizopus stolonifer, but it can be distinguished by its smaller sporangia and air-dispersed sporangiospores. It differs from R. oligosporus and R. microsporus by its larger columellae and sporangiospores. The many strains of R. oryzae produce a wide range of enzymes such as carbohydrate digesting enzymes and polymers along with a number of organic acids, ethanol and esters giving it useful properties within the food industries, bio-diesel production, and pharmaceutical industries. It is also an opportunistic pathogen of humans causing mucormycosis.
Scutellonema bradys, also known as yam nematode, is a migratory endoparasitic nematode causing major damage to yam crop in many African tropical regions, as well in parts of South and Central America and Asia. They can cause reduction of 20-30% in tuber weight at harvest.
The Future 50 Foods report, subtitled "50 foods for healthier people and a healthier planet", was published in February 2019 by the World Wide Fund for Nature (WWF) and Knorr. It identifies 50 plant-based foods that can increase dietary nutritional value and reduce environmental impacts of the food supply, promoting sustainable global food systems.
Sphenostylis stenocarpa or the African yam bean is a species of plant in the Fabaceae which is native to Africa. It is an important source of food in many parts of Africa. The tubers are fried, boiled or roasted, and are higher than the seeds in protein.