Cucumis metuliferus – Nutritional Value, Health Benefits

Cucumis Metuliferus is orange-colored fruit naturally found in Africa which is now cultivated in Newzealand, Australia, Kenya, New Zealand, France, and Israel. Other common names include jelly melon, métulon (France), and the trademarked names Kiwano (New Zealand), Horn Gurke (German), and Melano (Israel)
Horned melon is a cucumber family fruit juicy, emerald-green, jellylike flesh. Some of the common names of this semi-arid, yellow-orange, oblong-shaped fruit are kiwano, melano, African horned cucumber, jelly melon, hedged gourd, horned melon, etc.

Facts about Horned Melon (Kiwano Melon)

Name Horned Melon
Scientific Name Cucumis metuliferus
Common/English Name African cucumber, African horned cucumber, African horned melon, Bitter wild cucumber, Blowfish fruit, English tomato, Hedged gourd, Horned cucumber, Horned gourd,  Horned melon, Horny cucumber, Jelly melon, Kiwano, Melano, Metulon, Spiked pears, Spiny cucumber
Name in Other Languages Metulon (French), Rooi-agurkie, Rooikomkommer (Afr.), Mokapana (Tswana)

Common/English Names: African Cucumber, African Horned Cucumber, African Horned Melon, Bitter Wild Cucumber, Hedged Gourd, Horned Cucumber, Horned Melon, Horny Cucumber, Jelly Melon, Kiwano, Spiny Cucumber
Afrikaans Rooikomkommer, Rooi Agurkie, Wilde Komkommer
Benin AgBowounon , Gbowunon (Fon ), Agbowunon (Goun)
Botswana Magabala, Mokapana (Tswana), Mogau
Danish Afrika Agrurk
Democratic Republicof Conga Nku, Mutete, Mugaika , Mukaka, Uhufafa (Bantu), Kunguliranalima (Shi)
Dutch Zuiltjesdragende Komkommer
East Africa Tongon
Eastonian Ogamelon
Finnish Kivakurkku, Kiwano
French Concombre Corne, Concombre Africain , Concombre Cornu , Kiwano ,Melon A Corne, Melon Porte-Corne, Metulon, Metulo
German Horn Gurke, Hommelone, Hornmelone, Kiwabo , Kiwano, Geleenmelone, Kiwake, Morgensterngurke
Israel Melano
Italian Kiwano
Japanese Kiwano
Malawi Bitter Wild Cucumber, cucumber
Mozambique Mutate, Mugaika, Mushonga, Mugaka (Shona, Southern Mozambique)
Niger Nku,MuteteMugaika,Mukaka,Uhufafa(Bantu),Golo’n Zaki(Hausa),Oemanam Anag Eshan(Tamacheck), Gorgno Tiambou (Zarma)
Portuguese Kiwano, Kumbundu, Maxije, Pepino Africano Umbundu
Slovenia Afriska Kumara,Kivano
Somalia Patir
South Africa Bitter Wild Cucumber(English), Rooi – Agurkie, Rooikomkommer (Afrikaans), Mukake (Venda), Uhufafa (Zulu), Mokapana, Magabala(Tswana)
Spanish Kiwano
Swedish Kiwano ,Afrikansk Gurka
Zambia Mugagachiga
Zimbabwe Mushonga, Mugaka, Mutete , Mugaika , Mugaka (Shona, Southern), Ihalabujana Mu , Gumudza’mbga ( Northern), Gaka, Gakachika
History and origin Kiwano grows naturally in the tropical and subtropical sub-Saharan regions of Africa, stretching from Senegal to Somalia and South Africa. It has also been found in Yemen. Now It is primarily cultivated in California, Mississippi, Chile, Australia, and New Zealand, where it was introduced in the 1930s.
Fruit shape & size Similar size in shape to medium papaya or large pear, slightly oval in shape. It has horn-like spines, hence the name became “horned melon” 

Normal size is about 8-10 cm long and 4-5 cm in diameter

Fruit weight About 209g
Fruit color
  • Young fruit: is dark green with mottled light green spots.
  • Ripe fruit: yellow-orange or golden color
Flesh color Juicy, green, and translucent and contains a lot of seeds covered in a gelatin-like substance.
Fruit peel Fruit peel
Flavor/aroma Tart flavor
Fruit Taste sweet and tart  Its taste has been compared to a combination of cucumber and zucchini or a combination of banana, cucumber, and lemon
Season Available during the summer season
Major Nutritions Vitamin C (13.67%), Vitamin B6 (11.31%), Zinc (10.18%),  Vitamin B5 (8.52%), Vitamin B3 (8.23%), Potassium (6.11%), Copper (5.22%), Thaimin (4.83%)
Calories in 1cup (233 gm) 103 Kcal
It is said that
  • The whole fruit of ripe Horned Melon is eaten and is believed to be not only nutritious but has medicinal properties as well. Peoples in Botswana believe it is good for diabetic patients.
  • Leaves of the Horned Melon are also tasty and nutritious. Leaves are cooked like spinach or mixed with maize meal.
  • It is believed that the skin of the Horned Melon is very rich in vitamin C and fiber.
  • The fruit contains saponin – a kind of oily glycoside that foams freely when shaken with water.
  • According to Roodt (1998), Shona tribe in the Okavango area, Horned Melon root extract is used to relieve pain after childbirth.
  • It is also said that the boiled root of Horned Melon is an effective remedy for Gonorrhea.
  • Spiritual beliefs: Tribes living in the Okavango believe that one can prevent ghosts or evil spirits from entering one’s house by applying Paste of the Horned Melon root mixed with fat on the body
Precautions
  • Horned Melon tastes better while it is young and green, which may have excessive levels of compound which is not edible it may cause stomach cramps, headaches, and fever. In the ripe fruit, this compound will not be present and ready to eat.
  • The spines in the outer peel of this fruit are slightly sharp, be careful while handling.
How to Eat
  • Make delicious juice and drink it
  • Cut melon into two pieces sprinkles some salt or sugar which enhances the flavor and scoop out of the shell with a spoon and have delicious melon.
  • Use it as fruit salad.

Horned melon Scientific Classification

Scientific Name: Cucumis metuliferus

Rank Scientific Name & (Common Name)
Kingdom Plantae (Plants)
Subkingdom Tracheobionta (Vascular plants)
Superdivision Spermatophyta (Seed plants)
Division Magnoliophyta (Flowering plants)
Class Magnoliopsida (Dicotyledons)
Subclass Dilleniidae
Order Violales
Family Cucurbitaceae (Cucumber family)
Genus Cucumis L. (Melon)
Species Cucumis metuliferus E. Mey. ex Naud. (African horned cucumber)
Synonyms
  • Cucumis L.
  • Cucumis metuliferus E. Mey
  • Cucumis metuliferus E.Mey. ex Naudin
  • Cucumis metuliferus E.Mey. ex Schrad.
  • Cucumis metuliferus Naudin

Nutritional Value

the table below for in depth analysis of nutrients:

Horned melon (Cucumis metuliferus), ripe, raw, Nutrition value per 100 g.

Principle Nutrient Value % of RDA
Energy 44 Kcal 2.2%
Carbohydrates 7.56 g 5.8%
Protein 1.78 g 3%
Total Fat 1.26 g 6%
Cholesterol 0 mg 0%
Vitamins
Folates 3 μg <1%
Niacin 0.565 mg 3.5%
Pantothenic acid 0.183 mg 3.5%
Pyridoxine 0.063 mg 5%
Riboflavin 0.015 mg 1%
Thiamin 0.025 mg 2%
Vitamin-A 147 IU 5%
Vitamin-C 5.3 mg 9%
Electrolytes
Sodium 2 mg <1%
Potassium 123 mg 2.6%
Minerals
Calcium 13 mg 1.3%
Copper 0.020 mg 2.5%
Iron 1.13 mg 14%
Magnesium 40 mg 10%
Manganese 0.039 mg 1.5%
Phosphorus 37 mg 5%
Zinc 0.48 mg 4%

Health benefits of Horned melon (kiwano)

  1. Horned melons are low-calorie fruits. 100 grams of fresh fruit composes just 44 calories. Nonetheless, this tropical melon is endowed with health benefiting phytonutrients, dietary fiber, minerals, and vitamins.
  2. The antioxidants present in Kiwanis have scientifically proven to be anti-inflammatory, skin-protective, and may help prevent cancers.
  3. Fresh melons carry a good amount of phenolic compounds such as β-carotene, and zeaxanthin.
  4. Zeaxanthin helps protect the retina from the “age-related macular related macular disease” (ARMD) by filtering harmful ultra-violet rays, especially in older adults.
  5. Further, kiwano carries 143 IU/100 g of vitamin-A. Together with pigment compounds, vitamin A plays an antioxidant and takes part in night-vision, maintenance of healthy mucosa and skin, and bones. Consumption of natural vegetables and fruits rich in flavonoids is known to help protect from lung and oral cavity cancers.
  6. Fresh kiwano fruit contains 5.3 mg (9% of DV) of vitamin C. Consumption of foods rich in vitamin C helps the body develop resistance against infectious agents and scavenge harmful free radicals.
  7. Fresh Horned melon is a modest source of potassium and other electrolytes. Potassium is an important component of cell and body fluids that helps control heart rate and blood pressure caused by sodium.
  8. 100 g of fresh fruit provides 1.1.3 mg (14% DV) of iron and 40 mg (10% DV) of magnesium. It is also a good source of minerals like phosphorus, calcium, magnesium, and other trace elements.
  9. Further, they carry average levels of vital B-complex vitamins such as thiamin, niacin, folic acid, riboflavin, and pantothenic acids.

Selection and storage

Fresh kiwano can be found year-round in some African regions of Malawi and Nigeria. In the US markets, however, their availability is still limited to big cities supermarkets.

Buy firm these melons with deep, bright yellow-orange skin and intact horns over the surface.

Avoid soft, and those with blemishes or soft spots on the skin. Kiwano, like bananas, is rare fruit that are susceptible to chill injuries.

Kiwanis have a very long shelf life and store well when kept in a cool, dry place for up to 3-6 months. Do not refrigerate.

Take care while handling sharply spiked melons as they may inflict stabbing injury on hands.

Preparation and serving methods

At home, wash the fruit in cold running water and mop dry using a soft towel. To prepare, trim away top calyx and tips. Using a paring knife, cut the fruit in half lengthwise. Scoop seed-filled juicy pulp using a spoon. You can also cut it into slices or wedges to eat like a melon.

Serving methods:

Kiwano as is quite unappetizing because of its bland, neutral taste. Sprinkle some sugar, if desired.

Strain the fruit pulp for juice and spoon over ice cream or fruit salads as you do in passion fruit.

Safety profile

Being a member of cucurbitaceae, horned melons (Kiwanis) may compose triterpenoid compounds, particularly cucurbitacin-B. It may cause gastrointestinal disturbances like stomach pain, vomiting, and diarrhea. stomach pain may be self-limiting.

Taste a spoonful of juicy pulp before eating the whole fruit to ensure that it is not from a bitter stock. If found; the whole fruit should be discarded.

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References

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