Macrotyloma uniflorum

Last updated

Macrotyloma uniflorum
Horse Gram BNC.jpg
Horse gram seeds
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Macrotyloma
Species:
M. uniflorum
Binomial name
Macrotyloma uniflorum
Varieties
  • M. uniflorum var. benadirianum
  • M. uniflorum var. stenocarpum(Brenan) Verdc.
  • M. uniflorum var. uniflorum
  • M. uniflorum var. verrucosum
Synonyms [1]
  • Dolichos uniflorusLam.
  • Glycine uniflora(Lam.) Dalzell
  • Kerstingiella uniflora(Lam.) J.A.Lackey

Macrotyloma uniflorum (horsegram, also known as horse gram, kulthi bean, gahat, hurali, or Madras gram [2] ) 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. [3] 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.

Contents

Description

Macrotyloma uniflorum is a perennial climbing plant with a rhizome, growing to a height of about 60 cm (24 in). The stem sprouts from the rhizome each year. It is clad in varying amounts of whitish hairs and bears alternate, trifoliate leaves with petioles up to 7 cm (2.8 in) long. The leaflets are obovate or elliptical, and up to 7 cm (2.8 in) long. The flowers are borne in twos or threes in the leaf axils, and are typical of the bean family with banner, wings and keel. They are cream, yellowish or green, often with a purple blotch inside. These are followed by linear-oblong, upcurving pods up to 8 cm (3.1 in) long, containing up to ten reddish-brown, speckled or black seeds. [4] The seeds have a length of 3–6 mm (0.1–0.2 in). [5]

Distribution

Horse gram is native to tropical southern Asia and has been found in archaeological sites in India, starting from 2500 BC. [6] The plant was probably first domesticated in India, and is now grown as a legume from India to Myanmar. Additionally, the crop is also grown for fodder and green manure in tropical countries in southeastern Asia, and in northern Australia. [4] Generally, the major growing areas of Macrotyloma uniflorum are located in India, Africa and Australia. [7]

Cultivation

Horse gram is drought tolerant [8] and also withstands harsh environmental conditions such as salinity or metal stresses. [9] Generally, Horse Gram is planted with low agronomic inputs and without weeding. Furthermore, the crop grows on a broad range of soil types with different pH ranges. Cultivation is also possible on soils with poor organic matter and nitrogen availability. [5] Horse gram thrives where the temperature is in the range of 20 to 30 °C (68 to 86 °F). Frost temperatures are lethal. [7] Due to the drought-resistance Macrotyloma uniflorum is grown in areas with low precipitation (300–900 mm (12–35 in)). In wetter areas, Horse gram is usually sown at the end of the rainy season to still facilitate cultivation. Nonetheless, Macrotyloma uniflorum does not tolerate waterlogging. [10]

The plant is not only cultivated as a monoculture, but also as an inter- or mixed crop together with groundnut, sorghum, sesame, niger, maize, finger millet, pearl millet, amaranth, marvel grass or kidney bean. Furthermore, Macrotyloma uniflorum can also be grown along with trees such as neem, white siris or babul. Both, grain and green forage yield are highly dependent on the growing region as well as the selected cropping system. Substantial yield differences in the various growing regions exist: In India green forage yield varies from 5 - 14 t/ha and in Australia approximately 4.4 t/ha are reported. Grain yield in India is around 0.13 – 1.2 t/ha and 1.1 – 2.2 t/ha in Australia. [5] [7] [11]

Pests

Yield-impacting dieseases are anthracnose ( Colletotrichum lindemuthianum ), the yellow mosaic virus as well as powdery mildew. Other diseases affecting horse gram are dry root rot (Macrophomina phaseolina), rusts, aerial blight (Rhizoctonia solani) and leaf spot ( Cercospora ). The pod borer (Etiella zinckenella) and the pod fly (Melanagromyza obtusa) are the most damaging insect pests. [5] [7] Others are aphids ( Aphis craccivora ), hairy caterpillar (Azazia rubicans), pod caterpillar (Helicoverpa armigera), American serpentine leaf miner (Liriomyza trifolii), thrips, leaf hoppers and Callosobruchus as a storage pest. [5] [7]

Nutrition

Horse gram and moth bean are legumes of the tropics and subtropics, grown mostly under dry-land agriculture. The chemical composition is comparable with more commonly cultivated legumes. Like other legumes, these are deficient in methionine and tryptophan, though horse gram is an excellent source of iron and molybdenum. Comparatively, horse gram seeds have higher trypsin inhibitor and hemagglutinin activities and natural phenols than most bean seeds. Natural phenols are mostly phenolic acids, namely, 3,4-dihydroxybenzoic, 4-hydroxybenzoic, vanillic, caffeic, p-coumaric, ferulic, syringic and sinapic acids. Though both require prolonged cooking, a soak solution (1.5% NaHCO3 + 0.5% Na
2
CO
3
+ 0.75% citric acid) has been shown to reduce cooking time and improve protein quality. [12]

Horse gram seed contains carbohydrate (57.2% w/w), protein (22% w/w), dietary fiber (5.3% w/w), fat (0.50% w/w), calcium (287 mg), phosphorus (311 mg), iron (6.77 mg) and calories (321 kcal) as well as vitamins like thiamine (0.4 mg), riboflavin (0.2 mg) and niacin (1.5 mg) per 100 grams of dry matter. The nutritional content is partly dependent on soil conditions and the weather. The less appealing taste has led it to be not commonly eaten. [13]

The carbohydrate-fraction of horse gram flour consists of oligo-saccharides and starches. The starches can be divided in terms of digestability in those that can be digested and uptaken in the small intestine, and those that partly will fermented in the colon by the microflora. The latter ones, called resistant starches, account for 43.4% of the carbohydrate content of horse gram flour. Oligo-saccharides such as raffinose and stachyose contribute to digestion difficulties. The fermentation in the colon often may lead to flatulence and diarrhoea, given the high concentration of both, resistant starches and oligo-saccharides, for horse gram longer cooking times, and other treatments are needed. [9] Enzymatic treatments with xylanase has the goal to improve the functional and expansive properties of horse gram seeds in order to facilitate the use as an ingredient in the food industry. By following a high temperature short time (HTST) treatment, the content of phytic acid, tannins and protease-inhibitors could be reduced by 46%, 61% and 92% respectively. The flour resulting from this treatment had higher water- and oil-absorption capabilities. Those improvements in digestibility and processibility could make horsegram an interesting protein- and flour source for the food industry. [14]

Breeding

Globally, southwest India and the African continent are regarded as horse gram gene-rich regions. [7] From the 1970s, germplasm of horse gram has been conserved. [15] The US Department of Agriculture's (USDA) Germplasm Resources Information Network (GRIN) has preserved 35 accessions of horse gram, the Australian Tropical Crops and Forages Genetic Resources Centre, has 38 accessions and the Kenya Agricultural Research Institute (KARI) has conserved 21 accessions. [7]

A large amount of drought resistance genes exist in horse gram and grain yield enhancement represents the main breeding goal. [7] [15] [8] Little attention has been given to the genome structure and organization of horse gram. The use of new genes for horse gram breeding could benefit from genetic data on numerous phenological and morphological features. These may impact agronomic methods and crop productivity. [16] Many unfavorable traits such as late flowering, indeterminate twining growth habit, long and thin stem, thermo- and photosensitivity and a poor harvest index exist in horse gram. [7] The digestability and processability improvements described in Nutrition section implicitly suggest to consider the reduction of phytic acid content, tannins and protease-inhibitors as additional breeding goals.

Medicinal uses

Scientists from the Indian Institute of Chemical Technology have found that unprocessed raw horse gram seeds not only possess antihyperglycemic properties[ citation needed ], but also have qualities which reduce insulin resistance. The scientists made[ citation needed ] a comparative analysis between horse gram seeds and their sprouts and found that the seeds have greater beneficial effects on the health of hyperglycemic individuals. The majority of antioxidant properties are confined to the seed coat and its removal would not do any good[ citation needed ]. Raw horse gram seed is rich in polyphenols, flavonoids, and proteins, major antioxidants present in fruits and other food materials. The seed has the ability to reduce postprandial hyperglycemia by slowing down carbohydrate digestion and reducing insulin resistance by inhibiting protein-tyrosine phosphatase 1 beta enzyme. [17] [ citation needed ]

Indian regional specifics

In India, it is also known as ulavalu, gahat, muthira, kulath, khollu or kulthi. It is used to make popular dishes like Kulitan Saaru, Kulitan Upkari, Kulitan Ghassi (coconut curry preparation), and an idli -like preparation (but not fermented) called Kulitan Sannan.

In Myanmar (Burma), horse gram is known as pe bazat (ပဲပိစပ်) in Burmese. It is commonly used in making pon ye gyi , a fermented bean paste used in traditional Burmese cuisine.

Related Research Articles

<span class="mw-page-title-main">Bean</span> Seed of one of several genera of the plant family Fabaceae

A bean is the seed of several plants in the family Fabaceae, which are used as vegetables for human or animal food. They can be cooked in many different ways, including boiling, frying, and baking, and are used in many traditional dishes throughout the world.

<span class="mw-page-title-main">Carbohydrate</span> Organic compound that consists only of carbon, hydrogen, and oxygen

A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 and thus with the empirical formula Cm(H2O)n, which does not mean the H has covalent bonds with O. However, not all carbohydrates conform to this precise stoichiometric definition, nor are all chemicals that do conform to this definition automatically classified as carbohydrates.

<span class="mw-page-title-main">Cereal</span> Grass that has edible grain

A cereal is a grass cultivated for its edible grain. Cereals are the world's largest crops, and are therefore staple foods. They include rice, wheat, rye, oats, barley, millet, and maize. Edible grains from other plant families, such as buckwheat and quinoa are pseudocereals. Most cereals are annuals, producing one crop from each planting, though rice is sometimes grown as a perennial. Winter varieties are hardy enough to be planted in the autumn, becoming dormant in the winter, and harvested in spring or early summer; spring varieties are planted in spring and harvested in late summer. The term cereal is derived from the name of the Roman goddess of grain crops and fertility, Ceres.

<i>Eleusine coracana</i> Species of grass

Eleusine coracana, or finger millet is an annual herbaceous plant widely grown as a cereal crop in the arid and semiarid areas in Africa and Asia. It is a tetraploid and self-pollinating species probably evolved from its wild relative Eleusine africana.

<span class="mw-page-title-main">Guar</span> Species of flowering plant in the bean family Fabaceae

The guar or cluster bean, with the botanical name Cyamopsis tetragonoloba, is an annual legume and the source of guar gum. It is also known as gavar, gawar, or guvar bean.

<span class="mw-page-title-main">Chickpea</span> Species of flowering plant with edible seeds in the family Fabaceae

The chickpea or chick pea is an annual legume of the family Fabaceae, subfamily Faboideae. Its different types are variously known as gram or Bengal gram, chhana, chana, or channa, garbanzo or garbanzo bean, or Egyptian pea. Chickpea seeds are high in protein. It is one of the earliest cultivated legumes, the oldest archaeological evidence of which was found in Syria.

<span class="mw-page-title-main">Sago</span> Starch extracted from tropical palm stems

Sago is a starch extracted from the pith, or spongy core tissue, of various tropical palm stems, especially those of Metroxylon sagu. It is a major staple food for the lowland peoples of New Guinea and the Maluku Islands, where it is called saksak, rabia and sagu. The largest supply of sago comes from Southeast Asia, particularly Indonesia and Malaysia. Large quantities of sago are sent to Europe and North America for cooking purposes. It is traditionally cooked and eaten in various forms, such as rolled into balls, mixed with boiling water to form a glue-like paste (papeda), or as a pancake.

<span class="mw-page-title-main">Lentil</span> Species of flowering plant with edible seeds in the family Fabaceae

The lentil is an edible legume. It is an annual plant known for its lens-shaped seeds. It is about 40 cm (16 in) tall, and the seeds grow in pods, usually with two seeds in each. As a food crop, the largest producers are Canada and India, producing 29% and 27%, respectively, of the world's total lentils in 2021.

<span class="mw-page-title-main">Legume</span> Plant in the family Fabaceae

A legume is a plant in the family Fabaceae, or the fruit or seed of such a plant. When used as a dry grain, the seed is also called a pulse. Legumes are grown agriculturally, primarily for human consumption, for livestock forage and silage, and as soil-enhancing green manure. Well-known legumes include beans, soybeans, chickpeas, peanuts, lentils, lupins, grass peas, 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.

<span class="mw-page-title-main">Mung bean</span> Species of plant

The mung bean, alternatively known as green gram, maash ٫ mūng, monggo, đậu xanh, pesalu, kacang hijau or munggo (Philippines), is a plant species in the legume family. The mung bean is mainly cultivated in East, Southeast and South Asia. It is used as an ingredient in both savoury and sweet dishes.

<i>Vigna subterranea</i> Species of plant

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.

<i>Vigna mungo</i> Species of plant

Vigna mungo, also known as black gram, urad bean, urid bean, matimah, matikolai, mash kalai, maas/kalo daal, uzhunnu parippu, ulundu parippu, minapa pappu, uddu, or black matpe, is a bean grown in South Asia. Like its relative, the mung bean, it has been reclassified from the Phaseolus to the Vigna genus. The product sold as black lentil is usually the whole urad bean, whereas the split bean is called white lentil. It should not be confused with the much smaller true black lentil.

<span class="mw-page-title-main">Winged bean</span> Species of legume plant

The winged bean, also known as cigarillas, goa bean, four-angled bean, four-cornered bean, manila bean, princess bean, star bean, kamrangi bean, pea, dragon bean, is a tropical herbaceous legume plant.

<i>Vigna umbellata</i> Species of flowering 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.

<i>Vigna aconitifolia</i> Species of flowering plant

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.

Macrotyloma geocarpum is also known as the ground bean, geocarpa groundnut, Hausa groundnut, or Kersting's groundnut. In French, it is often called la lentille de terre. M. geocarpum is an herbaceous annual plant and a crop of minor economic importance in sub-Saharan Africa, tolerant of drought, with a growth habit similar to that of the peanut.

<i>Cucumeropsis mannii</i> Species of fruit and plant

Cucumeropsis mannii is a species of melon native to tropical Africa west of the East African Rift, where it is grown for food and as a source of oil.

<i>Macrotyloma</i> Genus of legumes

Macrotyloma is a genus of plants in the legume family which include several species of edible beans. Some species are also used as fodder for livestock.

<i>Sphenostylis</i> Genus of legumes

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. 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.

<span class="mw-page-title-main">Staple food</span> Food that is eaten routinely and considered a dominant portion of a standard diet

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.

References

  1. "Macrotyloma uniflorum (Lam.) Verdc". Plants of the World Online . Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 17 July 2020.
  2. "Taxonomy - GRIN-Global Web v 1.10.5.0". npgsweb.ars-grin.gov. Retrieved 24 September 2019.
  3. "Horse Gram" (PDF). Government of India, Directorate of Pulses Development. 3 April 2017.
  4. 1 2 Brink, Martin (2006). Cereals and Pulses. PROTA. pp. 102–104. ISBN   978-90-5782-170-7.
  5. 1 2 3 4 5 Kumar D (2007) Production technology for horse gram in India, Central Arid Zone Research Institute. Evergreen Printers, Jodhpur, India, pp 1–27, http://www.cazri.res.in/publications/KrishiKosh/113-(PRODUCTION%20TECHNOGY%20).pdf
  6. Pearman, Georgina (2005). Prance, Ghillean; Nesbitt, Mark (eds.). The Cultural History of Plants. Routledge. p. 144. ISBN   0415927463.
  7. 1 2 3 4 5 6 7 8 9 Aditya, J. P.; Bhartiya, Anuradha; Chahota, Rakesh K.; Joshi, Dinesh; Chandra, Nirmal; Kant, Lakshmi; Pattanayak, Arunava (2019-09-01). "Ancient orphan legume horse gram: a potential food and forage crop of future". Planta. 250 (3): 891–909. doi: 10.1007/s00425-019-03184-5 . ISSN   1432-2048. PMID   31115659. S2CID   160009881.
  8. 1 2 Bhardwaj, Jyoti; Chauhan, Rohit; Swarnkar, Mohit Kumar; Chahota, Rakesh Kumar; Singh, Anil Kumar; Shankar, Ravi; Yadav, Sudesh Kumar (2013-09-23). "Comprehensive transcriptomic study on horse gram (Macrotyloma uniflorum): De novo assembly, functional characterization and comparative analysis in relation to drought stress". BMC Genomics. 14 (1): 647. doi: 10.1186/1471-2164-14-647 . ISSN   1471-2164. PMC   3853109 . PMID   24059455.
  9. 1 2 Prasad, Saroj Kumar; Singh, Manoj Kumar (1 May 2015). "Horse gram- an underutilized nutraceutical pulse crop: a review". Journal of Food Science and Technology. 52 (5): 2489–2499. doi:https://doi.org/10.1007/s13197-014-1312-z.
  10. Brink, Martin (2006). Cereals and Pulses. PROTA. ISBN   978-90-5782-170-7.
  11. Haq Nazmul (2011) Underutilized food legumes: potential for multipurpose uses. In: Pratap A, Kumar J (eds) Biology and breeding of food legumes. CAB International, UK, pp 335–336
  12. Kadam, S. S.; Salunkhe, D. K. (1985). "Objectives". C R C Critical Reviews in Food Science and Nutrition. 22 (4): 1–26. doi:10.1080/10408398509527416. ISSN   0099-0248. PMID   3899515.
  13. Bhartiya, A.; Aditya, J. P.; Kant, L. (2015). "Nutritional and Remedial Potential of an Underutilized Food Legume Horsegram (Macrotyloma uniflorum): A Review". The Journal of Animal and Plant Sciences. 25 (4): 908–920. ISSN   1018-7081.
  14. Sreerama, Yadahally N.; Sasikala, Vadakkoot B.; Pratape, Vishwas M. (2008-06-01). "Nutritional implications and flour functionality of popped/expanded horse gram" . Food Chemistry. 108 (3): 891–899. doi:10.1016/j.foodchem.2007.11.055. ISSN   0308-8146. PMID   26065750.
  15. 1 2 Chahota, Rakesh & Thakur, Nisha & Sharma, Reecha. (2020). Efficient Improvement in an Orphan Legume: Horsegram, Macrotyloma uniflorum (Lam.) Verdi, Using Conventional and Molecular Approaches. 10.1007/978-3-030-47306-8_12. }
  16. Katoch, Megha; Mane, Rushikesh Sanjay; Chahota, Rakesh Kumar (2022). "Identification of QTLs Linked to Phenological and Morphological Traits in RILs Population of Horsegram (Macrotyloma uniflorum)". Frontiers in Genetics. 12. doi: 10.3389/fgene.2021.762604 . ISSN   1664-8021. PMC   8821879 . PMID   35145543.
  17. Mallikarjun, Y. (April 25, 2013). "Raw horse gram good for diabetics". The Hindu. Retrieved May 31, 2017.
  18. Kashid, R. R., & Talekar, S. M. (2021). Horse Gram (Macrotyloma uniflorum): Nutraceutical Pulse Crop: A Review.
  19. Shah, R. (2018). What About My Calcium?. CircleOHealth.