Black turtle bean

Boiled, with salt^[1]

Nutritional value per 100 g (3.5 oz)
Energy	552 kJ (132 kcal)
Carbohydrates	23.71
Sugars	0.32
Dietary fiber	8.7
Fat	0.54
Saturated	0.139
Trans	0
Monounsaturated	0.047
Polyunsaturated	0.231
Protein	8.86
Vitamins and minerals Vitamins Quantity %DV^† Vitamin A equiv. 0% 0 μg Vitamin A 6 IU Thiamine (B1) 20% 0.244 mg Riboflavin (B2) 5% 0.059 mg Niacin (B3) 3% 0.505 mg Vitamin B6 4% 0.069 mg Folate (B9) 37% 149 μg Vitamin B12 0% 0 μg Vitamin C 0% 0 mg Vitamin D 0% 0 μg Vitamin E 6% 0.87 mg Vitamin K 3% 3.3 μg Minerals Quantity %DV^† Calcium 2% 27 mg Iron 12% 2.10 mg Magnesium 17% 70 mg Phosphorus 11% 140 mg Potassium 12% 355 mg Sodium 10% 237 mg Zinc 10% 1.12 mg
Other constituents	Quantity
Water	65.74 g
^†Percentages estimated using US recommendations for adults,[2] except for potassium, which is estimated based on expert recommendation from the National Academies.[3]

The black turtle bean is a small, shiny variety of the common bean (Phaseolus vulgaris) especially popular in Latin American cuisine, though it can also be found in the Cajun and Creole cuisines of south Louisiana. Like all varieties of the common bean, it is native to the Americas,^[4] but has been introduced around the world. It is also used in Indian cuisine, Tamil cuisine, where it is known as karuppu kaaramani and in Maharashtrian cuisine, where it is known as kala ghevada. It is widely used in Uttrakhand, where it is also known as "bhatt". It is a rich source of iron and protein. The black turtle bean is often simply called the black bean (frijoles negros, zaragoza, judía negra, poroto negro, caraota negra, or habichuela negra in Spanish; and feijão preto in Portuguese), although this terminology can cause confusion with at least three other types of black beans.

The black turtle bean is the only type of turtle bean. It is called turtle because of its hard outer "shell".^[5]

It is not to be confused with douchi, the Chinese dish made with black hulled soybeans.

Background

Cooked black beans

The black bean has a dense, meaty texture, which makes it popular in vegetarian dishes, such as frijoles negros and the Mexican-American black bean burrito. It is a very popular bean in various regions of Brazil, and is used in the national dish, feijoada. It is also a main ingredient of Moros y Cristianos in Cuba, is a required ingredient in the typical gallo pinto of Costa Rica and Nicaragua, is a fundamental part of Pabellón criollo in Venezuela, and is served in almost all of Latin America, as well as many Hispanic enclaves in the United States. In the Dominican Republic cuisine, it is also used for a variation of the Moros y Cristianos simply called Moro de habichuelas negras. The black turtle bean is also popular as a soup ingredient. In Cuba, black bean soup is a traditional dish, usually served with white rice. Black beans sticky rice is a Thai dessert.^[6]

The bean was first widely grown in the present-day United States after the Mexican–American War (1846–1848). However, initially the variety was primarily grown as a snap pea (for the edible seed pod).^[7]

It is also common to keep the boiled water of these beans (which acquires a black coloring) and consume it as a soup with other ingredients for seasoning (known as sopa negra, black soup, or as sopa de frijoles, bean soup), as a broth (caldo de frijol, bean broth) or to season or color other dishes (aforementioned gallo pinto, for example).

Samples of black turtle beans were reported in 2006 to contain total anthocyanins in their dried seed coats of 0−2.78 mg/g.^[8]

Gallery

• 
  Cooked whole black turtle beans on tortillas
• 
  A bean dip from black beans
• 
  Salad with corn and beans

See also

• Pinto bean
• Kidney bean
• Bolita bean

References

1. "Beans, black, mature seeds, cooked, boiled, with salt". US Department of Agriculture. Archived from the original on 10 Feb 2016. Retrieved 31 December 2021.
2. United States Food and Drug Administration (2024). "Daily Value on the Nutrition and Supplement Facts Labels". FDA. Archived from the original on 2024-03-27. Retrieved 2024-03-28.
3. National Academies of Sciences, Engineering, and Medicine; Health and Medicine Division; Food and Nutrition Board; Committee to Review the Dietary Reference Intakes for Sodium and Potassium (2019). "Chapter 4: Potassium: Dietary Reference Intakes for Adequacy". In Oria, Maria; Harrison, Meghan; Stallings, Virginia A. (eds.). Dietary Reference Intakes for Sodium and Potassium. The National Academies Collection: Reports funded by National Institutes of Health. Washington, DC: National Academies Press (US). pp. 120–121. doi:10.17226/25353. ISBN 978-0-309-48834-1. PMID 30844154. Retrieved 2024-12-05.
4. Moskin, Julia (February 28, 2017). "Rediscovering Bean Soup". New York Times.
5. Ware, Megan (10 January 2018). "Black beans: Health benefits, facts, and research". Medical and health information. Retrieved 4 May 2023.
6. Purple Hull Peas
7. "Heirloom Bean Varieties". Mother Earth News. February 15, 2013.
8. Choung MG, Choi BR, An YN, Chu YH, Cho YS (2003). "Anthocyanin profile of Korean cultivated kidney bean (Phaseolus vulgaris L.)". J Agric Food Chem. 51 (24): 7040–3. Bibcode:2003JAFC...51.7040C. doi:10.1021/jf0304021. PMID 14611168.

External links

• The World's Healthiest Foods - Black Beans
• Unlocking the Nutritional Power of Sprouted Black Bean Flour