Phaseolus lunatus

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Lima beans
Phaseoulus lunatus.jpg
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Rosids
Order:
Fabales
Family:
Fabaceae
Subfamily:
Faboideae
Tribe:
Phaseoleae
Genus:
Phaseolus
Species:
P. lunatus
Binomial name
Phaseolus lunatus
Synonyms[1]
  • Dolichos tonkinensis Bui-Quang-Chieu
  • Phaseolus bipunctatus Jacq.
  • Phaseolus ilocanus Blanco
  • Phaseolus inamoenus L.
  • Phaseolus limensis Macfad.
  • Phaseolus lunatus var. macrocarpus (Moench) Benth.
  • Phaseolus macrocarpus Moench
  • Phaseolus portoricensis Spreng.
  • Phaseolus puberulus Kunth
  • Phaseolus rosei Piper
  • Phaseolus saccharatus Macfad.
  • Phaseolus tunkinensis Lour.
  • Phaseolus vexillatus Blanco, nom, illeg, non L.
  • Phaseolus viridis Piper
  • Phaseolus xuaresii Zuccagni

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Phaseolus lunatus is a legume grown for its edible seeds.

It is commonly known as the butter bean or lima bean.

Origin and uses

Lima beans in a seed catalogue, 1894

P. lunatus is of Andean and Mesoamerican origin. Two separate domestication events are believed to have occurred. The first, taking place in the Andes around 2000 BC,[2] produced a large-seeded variety (lima type), while the second, taking place in Mesoamerica around 800 AD, produced a small-seeded variety (Sieva type).[2] By around 1300, cultivation had spread north of the Rio Grande, and in the 1500s, the plant began to be cultivated in the Old World.[2]

The small-seeded (Sieva) type is found distributed from Mexico to Argentina, generally below 1,600 m (5,200 ft) above sea level, while the large-seeded wild form (lima type) is found distributed in the north of Peru, from 320 to 2,030 m (1,050 to 6,660 ft) above sea level.[citation needed]

The Moche Culture (0–800 CE) cultivated lima beans heavily and often depicted them in their art.[3] During the Spanish Viceroyalty of Peru, lima beans were exported to the rest of the Americas and Europe, and since the boxes of such goods had their place of origin labeled "Lima, Peru", the beans got named as such. Despite the origin of the name, when referring to the bean, the word "lima" is generally pronounced differently than the Peruvian capital.[4][5]

The term "butter bean" is widely used for a large, flat and yellow/white variety of lima bean (P. lunatus var. macrocarpus, or P. limensis[6]).

In the United States Sieva-type beans are traditionally called butter beans, also otherwise known as the Dixie or Henderson type. In that area, lima beans and butter beans are seen as two distinct types of beans.

In Spain, it is called garrofón, and constitutes one of the main ingredients of the famous Valencian paella.

In the United Kingdom and the United States, "butter beans" refers to either dried beans which can be purchased to rehydrate, or the canned variety which are ready to use. In culinary use there, lima beans and butter beans are distinct, the latter being large and yellow, the former small and green. In areas where both are considered to be lima beans, the green variety may be labelled as "baby" (and less commonly "junior") limas.

Cultivars

Phaseolus lunatus - MHNT
Lima beans, cooked, no salt
Nutritional value per 100 g (3.5 oz)
Energy 482 kJ (115 kcal)
20.88 g
Sugars 2.9 g
Dietary fiber 7 g
0.38 g
7.8 g
Vitamins
Thiamine (B1)
(14%)
0.161 mg
Riboflavin (B2)
(5%)
0.055 mg
Niacin (B3)
(3%)
0.421 mg
Pantothenic acid (B5)
(8%)
0.422 mg
Vitamin B6
(12%)
0.161 mg
Folate (B9)
(21%)
83 μg
Vitamin E
(1%)
0.18 mg
Vitamin K
(2%)
2 μg
Minerals
Calcium
(2%)
17 mg
Iron
(18%)
2.39 mg
Magnesium
(12%)
43 mg
Manganese
(25%)
0.516 mg
Phosphorus
(16%)
111 mg
Potassium
(11%)
508 mg
Sodium
(0%)
2 mg
Zinc
(10%)
0.95 mg
Other constituents
Fluoride 2.2 µg
Link to USDA Database entry
Percentages are roughly approximated using US recommendations for adults.
Source: USDA Nutrient Database
File:Mochelimabeans.jpg
Moche ceramic vessel with lima beans, Larco Museum Collection, Lima, Peru

Both bush and pole (vine) cultivars exist, the latter range from 1 to 5 m in height. The bush cultivars mature earlier than the pole cultivars. The pods are up to 15 cm (5.9 in) long. The mature seeds are 1 to 3 cm (0.39 to 1.18 in) long and oval to kidney-shaped. In most cultivars the seeds are quite flat, but in the "potato" cultivars, the shape approaches spherical. White seeds are common, but black, red, orange, and variously mottled seeds are also known. The immature seeds are uniformly green. Lima beans typically yield 2,900 to 5,000 kg (6,400 to 11,000 lb) of seed and 3,000 to 8,000 kg (6,600 to 17,600 lb) of biomass per hectare.

The seeds of the cultivars listed below are white unless otherwise noted. Closely related or synonymous names are listed on the same line.

Bush types

  • 'Henderson' / 'Thorogreen', 65 days (heirloom)
  • 'Eastland', 68 days
  • 'Jackson Wonder', 68 days (heirloom, seeds brown mottled with purple)
  • 'Dixie Butterpea', 75 days (heirloom, two strains are common: red speckled and white seeded)
  • 'Fordhook 242', 75 days, 1945 AAS winner

Pole types

  • 'Carolina' / 'Sieva', 75 days (heirloom)
  • 'Christmas' / 'Giant Speckled' / 'Speckled Calico', 78 days (heirloom, seeds white mottled with red)
  • 'Big 6' / 'Big Mama', 80 days[7]
  • 'King of the Garden', 85 days (heirloom)

Nutritional value

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Lima beans, like many other legumes, are a good source of dietary fiber, and a virtually fat-free source of high-quality protein.

Lima beans contain both soluble fiber, which helps regulate blood sugar levels and lowers cholesterol, and insoluble fiber, which aids in the prevention of constipation, digestive disorders, irritable bowel syndrome and diverticulitis.[citation needed]

Blood sugar

The high fiber content in lima beans prevents blood sugar levels from rising too rapidly after eating them due to the presence of large amounts of absorption-slowing compounds in the beans, and their high soluble fiber content. Soluble fiber absorbs water in the stomach, forming a gel that slows down the absorption of the bean's carbohydrates. They can therefore help balance blood sugar levels while providing steady, slow-burning energy, which makes them a good choice for people with diabetes suffering with insulin resistance.

Heart

Soluble fiber binds with the bile acids that form cholesterol and, because it is not absorbed by the intestines, it exits the body, taking the bile acids with it. As a result, the cholesterol level is lowered. They may, therefore, help to prevent heart disease, and may reduce the dose required to combat cholesterol in the form of natural food.

Lima beans also provide folate and magnesium. Folate lowers levels of homocysteine, an amino acid that is an intermediate product in the metabolic process called the methylation cycle. Elevated blood levels of homocysteine are an independent risk factor for heart attack, stroke, and peripheral vascular disease.

The magnesium content of lima beans is a calcium-channel blocker. When enough magnesium is present, veins and arteries relax, which reduces resistance and improves the flow of blood, oxygen, and nutrients throughout the body.

References

  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Larco Hoyle, Rafael. Los Mochicas. Museo Arqueológico Rafael Larco Herrera. Lima 2001. ISBN 9972-9341-0-1
  4. ↑ Lima Bean, Cambridge Dictionary
  5. ↑ Allison Keene, Dietribes: Lima Beans, Mental Floss
  6. ↑ Oxford English Dictionary, 45th Edition, various quotations
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.

External links

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