Dipteryx alata

Dipteryx alata is a large, undomesticated, edible nut-bearing tree from dryish tropical lowlands in central South America belonging to the legume family, Fabaceae, from the Dipterygeae tribe in the Faboideae subfamily.[2] It is a wild species, widespread across the Cerrado savanna in South America.[3]

Dipteryx alata
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Rosids
Order:
Fabales
Family:
Fabaceae
Genus:
Dipteryx
Species:
D. alata
Binomial name
Dipteryx alata
Synonyms

Vernacular names

It is known in Spanish as almendro (almond) in Santa Cruz department in southern Bolivia,[4] almendrillo in Pando in northern Bolivia, and shihuahuaco in the Department of Madre de Dios in southern Peru. In both these last two regions it shares the same name with Dipteryx micrantha. Both tree species are also known as mawi in the Ese Eja language spoken there.[5]

The common name baru appears to be the most used in Brazilian Portuguese.[6][7][8][9] A long list of other names used in Brazil have been recorded; some of these names are barujo,[6] coco-feijão,[7] cumaruna,[6] cumarurana,[7] cumbaru,[6][7] emburena-brava[7] feijão-coco[6][7] and imburana-brava.[6] A number of names, such as cumaru[6][7] and pau-cumaru,[6] are shared with the closely related Amazonian D. odorata, the tonka bean or cumaru tree, due to the similarity of the two trees. Harri Lorenzi complied most of these names in 1992, culled from the herbarium sheets he had collected, and the names can be traced to specific regions.[6]

Taxonomy

The German botanist Julius Rudolph Theodor Vogel named the species alata, which means "winged" [10] and refers to the winged petiole of the leaves. As a legume, this tree belongs to the botanical family Fabaceae;[11] this is also known as Leguminosae, and commonly known as the bean, or pea, family.[12] The Dipterygeae tribe is an early branching of the Faboideae subfamily of the legumes, dating ~58 million years and preceding staple legumes such as soybeans, peas or peanuts by ~10 million years. It is quite distant from other less-known legumes such as Inga, Parkia, Tylosema, or tamarinds).[13][14]

Description

The tree can measure up to 25 m in height and 0.7 m in diameter.[15]

It has compound leaves with 6 to 14 leaflets. The greenish-white flowers are 6 to 15mm in diameter.[16]

Young sapling cultivated in São Paulo.

The form of the fruit (a bean pod) is ovoid and contains a juicy flesh within.[16] The fruit has an average weight of 25g and average dimensions of 52.40 ± 4.48mm for length, and 38.31 ± 4.05 mm for width.[8] Of these:

  • 42% is pulp
  • 53% is ligneous endocarp
  • 5% is seed

Distribution

It is native to Bolivia, Brazil, Paraguay and Peru.[4][7][16][17][18][19]

Bolivia: It has been recorded in northwestern Bolivia in the province of Abel Iturralde (in northern La Paz Department)[19] and Madre de Dios[5] (in Pando Department),[4] and in southeastern Bolivia in the provinces of Andrés Ibáñez, Chiquitos, Germán Busch, Ichilo, Ñuflo de Chávez, Sara and José Miguel de Velasco (all in Santa Cruz Department). It grows in the tropical savannah of the Chiquitania region.[19] It grows in Noel Kempff Mercado National Park,[4] and is thought to grow in Madidi National Park.[20]

Brazil: It can be found in suitable habitat throughout much of central and western Brazil.[7][18][16][19] It occurs in the north in the states of Pará[16] and Tocantins,[16] in the west in Acre,[19] Amazonas[19] and Rondônia,[16][19] in the northeast in Bahia,[16] Maranhão,[6][16] Piauí[16] and possibly Ceará,[16] in the central-west in Distrito Federal,[16][19] Goiás,[16][19] Mato Grosso[6][16][19] and Mato Grosso do Sul[6][16][19] and in the southeast in Minas Gerais,[6][16][19] Paraná[6][19] and the Atlantic coast of São Paulo.[6][7][16] According to Siqueira et al. (1992) it is almost extinct in the wild in these last two states, but found almost exclusively planted ex situ.[6]

Paraguay: It has been recorded from central eastern Paraguay in the departments of Amambay[17][21] and Concepción.[17]

Peru: It has been recorded in Peru in the departments of Huánuco (Pachitea Province), Loreto (Maynas and Ucayali provinces) and Madre de Dios (Tambopata Province).[22]

Ecology
Flowers in December in Brazil

Habitat

Of all the species of Dipteryx this species has the most southerly distribution and is the only one which grows in regions with marked seasons.[6]

It is found in the Amazon, Caatinga and central Brazilian savannah (called Cerrado in Brazil) phytogeographical regions. It grows mostly in the vegetative associations of Cerrado,[23] but also in tropical riverine and/or gallery forests, seasonally semi-deciduous tropical forests and Amazonian savannahs.[16]

It grows in areas with soil of low fertility in northern Bolivia,[5] but in Goiás it is typical for Cerrado areas with more soil fertility, where it occurs in a uniform manner. It may reliably be used as an indicator species of such conditions (Macedo, 1992), not occurring where the fertility is naturally very low.[6]

Interspecific relationships

Unlike most legumes, baru trees harbor no symbiotic nitrogen-fixing bacteria in root nodules and in fact depend on fixing nitrogen from water tables with their deep roots.[24]

A tree will produce about 150 kg of fruit per harvest in alternating years, being pollinated by native bees. The fruits are a food source for birds and small mammals, such as rodents, bats, and monkeys.[15][25]

Uses
Fruits of Dipteryx alata hanging from a branch in Formosa, Goiás in July

It is used as lumber, for charcoal production and for shade in pastures, by the indigenous peoples of its range. The fruits are often used as feed for cattle. The seeds are a nutritious part of the local communities' diet.[26][27][28]

According to Alexiades some among the Ese Eja people, which have recently started using the hallucinogenic drug ayahuasca, see visions of concrete houses under the influence of this drug, which according to a source interviewed by Alexiades represents a tree of this species. Alexiades theorises that this tree is to be considered a "teacher plant" in the new ayahuasca shamanism that the Ese Eja have adopted and that it, in specific, and trees in general, represents the "future".[5]

Uses for the fruit can be summarized as:[9]

Part of the FruitProduct/Sub-ProductUses
Pulp Pulp in natura Human food
Animal food
Medicinal/Pharmaceutical
Dehydrated Pulp Human food
Animal food
Medicinal/Pharmaceutical
FlourHuman food
Alcohol/Liqueur Human consumption
Medicinal/Pharmaceutical
Cosmetics
Industrial
ResiduesFarming (organic fertilizer)
Seed Raw Seed Human food
Animal food
Medicinal/Pharmaceutical
Agricultural (seeding)
Roasted SeedHuman Food
FlourHuman Food
MilkHuman Food
Oil Human food
Medicinal/Pharmaceutical
Cosmetics
Industrial
Cake Human food
Medicinal/Pharmaceutical
Cosmetics
Industrial
Paste/ButterHuman food
Ligneous endocarp CharcoalFuel
Pyroligneous acid and tarIndustrial
Ligneous EndocarpArtisanry

Cultivation

A tree has a useful lifespan of 60 years.[25]

The baru tree grows wild, but there are recent attempts at large-scale cultivation. The fruit matures shortly before rain season in the cerrado, which could range between June to October depending on its latitude.

Its brown fruits are either collected from the ground or picked from the tree when they are almost ripe.

Baru fruit extraction is a profitable alternative to deforestation. Several cerrado communities rely on the sale of baru fruits and seeds as a source of revenue.

Food and nutrition

Out of the fruit, the pulp is sweet and nutritious. It can be consumed fresh, but is also used to manufacture jams, jellies, and liquors. Baru seeds are high in fat, proteins, dietary fibers, magnesium, iron and zinc.[29]

Baru seed
Baru seeds
Baru seed, dry-roasted[30]
Nutritional value per 100 g (3.5 oz)
Energy2,238 kJ (535 kcal)
13.6 g
Sugars0.0 g
Dietary fiber9.2 g
42 g
Saturated7.6 g
Monounsaturated21.4 g
Polyunsaturated13.8 g
29 g
VitaminsQuantity %DV†
Vitamin E
143%
21.4 mg
MineralsQuantity %DV†
Calcium
11%
110 mg
Iron
37%
4.8 mg
Magnesium
46%
164 mg
Phosphorus
119%
832 mg
Potassium
21%
980 mg
Zinc
48%
4.6 mg
†Percentages are roughly approximated using US recommendations for adults.

The baru seed, also known as the baru nut, baru almond, or chiquitanian almond, is the seed of Dipteryx alata Vogel. It is classified as a tertiary grain legume,[31] as its supply chain is still very limited. Atypically among legume crop plants, baru seeds develop from a tree, and are dispersed by animals, particularly birds, bats and rodents.[32]

Baru seeds are similar in taste to peanuts and are often served in similar ways in Western cuisines. The botanical definition of a "nut" is a fruit whose ovary wall becomes hard at maturity. Using this criterion, the baru seed is not a nut given its unique fruit. However, it was initially translated in English as "nut" due to the first internationally published articles translating the word "castanha" from Portuguese.

Baru seeds are highly nutritious[33] and rich in: Anti-oxidants (mainly tocopherols), protein, dietary fiber, omega-6, omega-3, magnesium, potassium, phosphorus and zinc.

Baru seeds should be served after heating either as boiling, baking or roasting, which deactivates a trypsin inhibitor enzyme.[34] The trypsin inhibitor, if not deactivated, will not allow for the high protein content in baru seeds to be digested.

Baru seeds are used mostly as an occasional salted snack by local communities, due to the difficulty of extracting them manually. In Canada and the United States, baru seeds are used as a snack and ingredient, and are slowly being adopted as a peanut substitute. Individually, they are eaten dry-roasted.

Allergies

Baru seeds come from one of the earliest branches of legumes (called Dipterygeae), and did not evolve some characteristics of more derived, commonly consumed legumes.[35] This applies to proteins similar to allergenic ones present in peanuts, soybeans or peas, for example, bearing no risk of cross-reactivity. They are also unrelated to tree nuts.[36]

However, due to their early-stage processing chain, there is a possibility of cross-contamination with native nuts from Brazil such as cashew nuts and Brazil nuts if processed in a shared facility.[37]

Conservation

According to an anonymous assessor writing for the IUCN in 1998, this species is vulnerable due to over-collection of the seeds, usage as timber, and habitat loss by intensive farming. However, the IUCN fails to provide references to back up this claim, and use a restricted distribution instead of the actual range.[38]

See also

References
  1. "Dipteryx alata in Lista Vermelha da flora brasileira versão 2012.2". CNCFlora. Centro Nacional de Conservação da Flora. Retrieved 5 August 2019.
  2. Cardoso, D.; De Queiroz, L. P.; Pennington, R. T.; De Lima, H. C.; Fonty, E.; Wojciechowski, M. F.; Lavin, M. (2012). "Revisiting the phylogeny of papilionoid legumes: New insights from comprehensively sampled early-branching lineages". American Journal of Botany. 99 (12): 1991–2013. doi:10.3732/ajb.1200380. PMID 23221500.
  3. Tarazi, Roberto; Moreno, Maria Andréia; Gandara, Flávio Bertin; Ferraz, Elza Martins; Moraes, Mário Luiz Teixeira; Vinson, Christina Cleo; Ciampi, Ana Yamaguishi; Vencovsky, Roland; Kageyama, Paulo Yoshio (29 January 2010). "High levels of genetic differentiation and selfing in the Brazilian cerrado fruit tree Dipteryx alata Vog. (Fabaceae)". Genetics and Molecular Biology. 33 (1): 78–85. doi:10.1590/S1415-47572010005000007. PMC 3036066. PMID 21637609.
  4. "Name – Dipteryx alata Vogel". Tropicos.org. Missouri Botanical Garden. 2019. Retrieved 31 July 2019.
  5. Alexiades, Miguel N. (1999). Ethnobotany of the Ese Eja: Plants, Change and Health in an Amazonian Society (PhD). City University of New York. p. 240, 248, 398. CiteSeerX 10.1.1.452.5979.
  6. Corrêa, Gilmarcos de Carvalho (1999). Avaliação comportamental de plantas de baru (Dipteryx alata Vog.) nos cerrados do Estado de Goiás (PDF) (Sc.D.) (in Portuguese). Universidade Federal de Goiás. Docket 582.825:581.15(817.3). Retrieved 1 August 2019.
  7. Messina, Tainan (4 April 2012). "Dipteryx alata Vogel". CNCFlora (in Portuguese). Centro Nacional de Conservação da Flora. Retrieved 31 July 2019.
  8. Martins, Bruno De Andrade; Ferraz, Antonio Carlos De Oliveira; Schmidt, Flávio Luis (4 August 2017). "Physical characteristics of baru tree fruit aimed at kernel extraction". Semina: Ciências Agrárias. 38 (4): 1865. doi:10.5433/1679-0359.2017v38n4p1865.
  9. Vera, Rosângela; Soares Junior, Manoel Soares; Naves, Ronaldo Veloso; Souza, Eli Regina Barboza de; Fernandes, Eliana Paula; Caliari, Márcio; Leandro, Wilson Mozena (March 2009). "Características químicas de amêndoas de barueiros (dipteryx alata vog.) de ocorrência natural no cerrado do estado de Goiás, Brasil". Revista Brasileira de Fruticultura. 31 (1): 112–118. doi:10.1590/S0100-29452009000100017.
  10. Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange. F. Dümmler. 1837.
  11. "Dipteryx alata – Useful Tropical Plants".
  12. "Dipteryx – the Plant List".
  13. Cardoso, Domingos; de Queiroz, Luciano P.; Pennington, R. Toby; de Lima, Haroldo C.; Fonty, Émile; Wojciechowski, Martin F.; Lavin, Matt (December 2012). "Revisiting the phylogeny of papilionoid legumes: New insights from comprehensively sampled early-branching lineages". American Journal of Botany. 99 (12): 1991–2013. doi:10.3732/ajb.1200380. PMID 23221500.
  14. Sprent, Janet I. (April 2007). "Evolving ideas of legume evolution and diversity: a taxonomic perspective on the occurrence of nodulation". New Phytologist. 174 (1): 11–25. doi:10.1111/j.1469-8137.2007.02015.x. PMID 17335493.
  15. Tambarussi, Evandro Vagner; Sebbenn, Alexandre M.; Alves-Pereira, Alessandro; Vencovsky, Roland; Cambuim, Jose; Da Silva, Alexandre; Moraes, Marcela; De Moraes, Mario L.T. (15 September 2017). "Dipteryx alata Vogel (Fabaceae) a neotropical tree with high level of selfing: implication for conservation and breeding programs". Annals of Forest Research. 0. doi:10.15287/afr.2017.842.
  16. Carvalho, C.S. "Brazilian Flora Checklist – Dipteryx alata Vogel". Dipteryx in Flora do Brasil 2020 under construction. Jardim Botânico do Rio de Janeiro. Retrieved 31 July 2019.
  17. "Flora del Conosur" (in Spanish). Instituto de Botánica Darwinion. 2018. Retrieved 31 July 2019.
  18. de Lima, H.C.; Lima, I.B. (24 September 2014). "Dipteryx alata Vogel". Dipteryx in Lista de Espécies da Flora do Brasil (in Portuguese). Jardim Botânico do Rio de Janeiro. Retrieved 31 July 2019.
  19. "Name – Dipteryx alata Vogel". Vascular Plants of the Americas. Missouri Botanical Garden. 2019. Retrieved 31 July 2019.
  20. "Name – Dipteryx alata Vogel". Listado de la Flora del Parque Nacional Madidi, Bolivia. Missouri Botanical Garden. 5 November 2010. Retrieved 1 August 2019.
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  22. "Name – Dipteryx alata Vogel". Catalogue of the Flowering Plants and Gymnosperms of Peru. Missouri Botanical Garden. 8 August 2009. Retrieved 1 August 2019.
  23. https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1074669/1/baru.pdf
  24. Zuffo, Alan Mario; Júnior, Joacir Mario Zuffo; Carvalho, Rezânio Martins; dos Santos, Adaniel Sousa; Oliveira, João Batista da Silva; Fonseca, Wéverson Lima (25 January 2017). "Response of baru (Dipteryx alata Vog.) seedlings to liming and NPK application". Journal of Plant Nutrition. 40 (9): 1332–1338. doi:10.1080/01904167.2016.1267210.
  25. Ragusa-Netto, J. (16 March 2017). "Seed removal of Dipteryx alata Vog. (Leguminosae: Faboidae) in the edge and interior of Cerrado". Brazilian Journal of Biology. 77 (4): 752–761. doi:10.1590/1519-6984.20715. PMID 28355393.
  26. Paniagua Zambrana, Narel Y.; Bussmann, Rainer W.; Hart, Robbie E.; Moya Huanca, Araceli L.; Ortiz Soria, Gere; Ortiz Vaca, Milton; Ortiz Álvarez, David; Soria Morán, Jorge; Soria Morán, María; Chávez, Saúl; Chávez Moreno, Bertha; Chávez Moreno, Gualberto; Roca, Oscar; Siripi, Erlin (10 October 2017). "Traditional knowledge hiding in plain sight – twenty-first century ethnobotany of the Chácobo in Beni, Bolivia". Journal of Ethnobiology and Ethnomedicine. 13 (1): 57. doi:10.1186/s13002-017-0179-2. PMC 5634836. PMID 29017576.
  27. "Cultura (Cosmovisión) y Salud entre los Ese'Ejja | FlacsoAndes".
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  29. Fernandes, Daniela C; Freitas, Jullyana B; Czeder, Ludmila P; Naves, Maria Margareth V (2010). "Nutritional composition and protein value of the baru (Dipteryx alata Vog.) almond from the Brazilian Savanna". Journal of the Science of Food and Agriculture. 90 (10): 1650–1655. doi:10.1002/jsfa.3997. PMID 20564449. S2CID 89796230.
  30. De Oliveira Sousa, Amanda Goulart; Fernandes, Daniela Canuto; Alves, Aline Medeiros; De Freitas, Jullyana Borges; Naves, Maria Margareth Veloso (2011). "Nutritional quality and protein value of exotic almonds and nut from the Brazilian Savanna compared to peanut". Food Research International. 44 (7): 2319–2325. doi:10.1016/j.foodres.2011.02.013. INIST:24462545.
  31. "Grain Legumes".
  32. Tambarussi, Evandro Vagner; Sebbenn, Alexandre M.; Alves-Pereira, Alessandro; Vencovsky, Roland; Cambuim, Jose; Da Silva, Alexandre; Moraes, Marcela; De Moraes, Mario L.T. (15 September 2017). "Dipteryx alata Vogel (Fabaceae) a neotropical tree with high level of selfing: implication for conservation and breeding programs". Annals of Forest Research. 0. doi:10.15287/afr.2017.842.
  33. Fernandes, Daniela C; Freitas, Jullyana B; Czeder, Ludmila P; Naves, Maria Margareth V (11 May 2010). "Nutritional composition and protein value of the baru (Dipteryx alata Vog.) almond from the Brazilian Savanna". Journal of the Science of Food and Agriculture. 90 (10): 1650–1655. doi:10.1002/jsfa.3997. PMID 20564449.
  34. Siqueira, Egle Machado de Almeida; Marin, Alinne Martins Ferreira; da Cunha, Marcela de Sá Barreto; Fustinoni, Adriana Medeiros; de Sant'Ana, Lívia Pimentel; Arruda, Sandra Fernandes (January 2012). "Consumption of baru seeds [Dipteryx alata Vog.], a Brazilian savanna nut, prevents iron-induced oxidative stress in rats". Food Research International. 45 (1): 427–433. doi:10.1016/j.foodres.2011.11.005.
  35. Cardoso, D.; Pennington, R.T.; de Queiroz, L.P.; Boatwright, J.S.; Van Wyk, B.-E.; Wojciechowski, M.F.; Lavin, M. (November 2013). "Reconstructing the deep-branching relationships of the papilionoid legumes". South African Journal of Botany. 89: 58–75. doi:10.1016/j.sajb.2013.05.001.
  36. Geiselhart, Sabine; Hoffmann-Sommergruber, Karin; Bublin, Merima (August 2018). "Tree nut allergens". Molecular Immunology. 100: 71–81. doi:10.1016/j.molimm.2018.03.011. PMID 29680588.
  37. https://www.gov.mb.ca/agriculture/food-safety/at-the-food-processor/food-safety-program/pubs/fs_7.pdf
  38. World Conservation Monitoring Centre 1998. Dipteryx alata. 2006 IUCN Red List of Threatened Species.blavla Downloaded on 10 July 2007

Further reading
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