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Kei Apple Fruit Health Benefits

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Kei Apple Fruit Health Benefits. With regards to health benefits, the roots and thorns of the tree are used to treat amenorrhea and chest pain in the African traditional medicine. The other such species are used by the Zulu to treat pain in rheumatic fever and rheumatism.

Following is the list of compounds a fresh ripe fruit it is said to have and it includes:

Ascorbic acid per 100 g83 mg

Scientists in Egypt have reported 15 amino acids namely:

Aspartic acid0.96%
Glutamic acid2.00%
Methionine + valine0.28%
Proline trace; serine0.48%

 Scientific name – Dovyalis caffra

Indigenous to Southern Africa, Dovyalis caffra is a small to medium sized straggly tree. Similar to a small apple, the ripe fruits are a treat to the taste buds. With no petals, the flowers of the fruit Kei apple are either introverted or clustered and are inconspicuous. Even though some female plants are parthenogenetic, with male and female flowers on separate plants, it has the male and female reproductive organs in separate individuals. Having an extensive distribution from the Kei River in the South, from which the common name originated; northwards down the eastern side of the continent to Tanzania.

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The tree is usually found in dry woodland, where it grows upto 6m tall, also prevalent in moist open woodland regions, it reaches at its greatest size of about 8-9 metres. With pointed 3-6 cm elongated shoot spikes in the leaf axils, bunch of alternately arranged simple ovate leaves with 3-6cm long are produced by buds at the base of the spine.

Containing more than a few small seeds, the skin and flesh of the edible fruit has an unvarying color that ranges to yellow or orange globose berry which is of 2.5�4 cm in diameter. They are very acidic, but succulent and tasty. It has a production that�s often abundant, weighing down the twigs in the summer.

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Kei apples are small fruits, averaging 2 to 5 centimeters in diameter, and have a round to oblate, curved shape. The skin is smooth, velvety, and semi-tough, ripening from green to yellow-orange with maturity. Underneath the surface, the golden flesh is soft, aqueous, succulent, and tender with an aromatic, sweet scent. In the center of the flesh, there may also be two rings of oval seeds, and each fruit contains 5 to 15 seeds. Kei apples vary in flavor from extremely acidic to sweet-tart with tangy, fruity notes reminiscent of mango, starfruit, and apricot.

Uses and cultural aspects

The leaves of the tree are used as fodder for livestock. The edible fruit of Kei apple are used in jam making. In order to have a good enclose, the plant requires a regular trimming and it prefers both full sun and light shade for best results. Apart from being cultivated as a fruit-bearing tree, they are also cultivated as a border i.e. they are both food and fence. Simply put, they can be formed a dense hedge around a garden.

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Kei apples are available in the late summer through fall. In some subtropical climates, the fruits are harvested year-round.

Current Facts

Kei apples, botanically classified as Dovyalis caffra, are small, tangy fruits found on an evergreen tree or shrub belonging to the Flacourtiaceae family. The rare fruits are considered berries and are native to Southern Africa, where they have been primarily gathered from plants used for natural fencing. Kei apples are named after the Kei River in the Eastern Cape province of South Africa. Outside of Africa, Kei apples have been introduced to subtropical climates around the world, where they have been grown as a coastal hedge. Kei apples are not commercially cultivated and are primarily grown in home gardens and small farms. The fruit’s fresh eating ability is highly variable, and due to its unpalatable acidic flavor, Kei apples are primarily reserved for cooked applications with added sweeteners. Despite their sour reputation, Kei apples are being selectively bred on a small scale in California by specialty growers to improve the fruit’s flavors, creating more palatable, sweeter crops for fresh eating.

Nutritional Value

Kei apples are an excellent source of vitamin C, an antioxidant that reduces inflammation and strengthens the immune system, and are a good source of potassium, a mineral that balances fluid levels within the body. The fruits also contain antioxidants to protect the body against external environmental aggressors.


Kei apples are best suited for cooked applications and are frequently combined with sweeter fruits or sugar to develop a palatable flavor. The fruits can be eaten raw, but depending on how the fruits were bred, the flavor may vary from acidic and sharp to pleasant with a sweet-tart flavor. When acidic, the fruits can be sliced, sprinkled with sugar, and left to absorb the sugar before consumption. Once sweetened, the fruits can be eaten as a snack, dessert, or blended into a sweet beverage. Sugared Kei apple slices can also be used in fruit or green salads or incorporated into desserts such as cakes, puddings, tarts, and pies. The natural acidity and pectin content of Kei apples make them ideal for use in making jams, jellies, compotes, and syrups. Beyond jams, Kei apples can be simmered into sauces for meats, boiled and strained into a juice, used to flavor boiled grains, or dried into fruit leather. It is not recommended to cook Kei apples for extended periods as the fruits break down into a thick liquid when heated. Kei apples pair well with meats such a poultry, beef, and pork, fish, ginger, nutmeg, cinnamon, fruits such as strawberries, peaches, coconuts, and apples, vanilla, and caramel. Whole Kei apples should be immediately consumed for the best flavor and will keep up to one week, depending on the degree of ripeness, when stored in the refrigerator.

Ethnic/Cultural Info

Kei apples are known as Umkokolo in Africa and are often referred to as a famine food found on a natural fence. The fruits grow on plants that can be shaped into shrubs or small trees and thrive in various subtropical climates with sandy to saline soil. Each plant can grow to nine meters in height and produce long, sharp spines, creating a dense thicket. With its evergreen and impenetrable nature, Kei apple shrubs are used as natural fencing in Southern Africa, especially in Kenya, as a form of protection. The shrubs are planted close together as a hedge around houses, farmland, and animal stables to prevent wild predators such as lions from entering the property. In addition to providing natural protection, the fruits are seen as a failsafe food for both humans and animals in times of famine. Kei apples are an essential source of vitamin C, and each plant is highly prolific, producing a large number of fruits.


Kei apples are native to Southern Africa and have been found growing wild in South Africa, Swaziland, Mozambique, and Zimbabwe since ancient times. The sweet-tart fruits were introduced to England in 1838 and were sent to Algeria, Southern France, Egypt, and Italy as an ornamental landscape variety. Kei apples were also brought to Northwestern Australia, Jamaica, the Philippines, and in 1901, the fruits were introduced into the United States in Florida and California. Today Kei apples are grown on a small scale worldwide and can be found in home gardens and through specialty growers in Africa, Australia, Europe, Asia, Central America, and warmer regions of North America.

Here are the health benefits of kei apple fruit

1. Strengthens the immune system

Kei apple is a good source of Vitamin C, a powerful antioxidant that aids in strengthening the immune system and reducing inflammation.

2. Prevents scurvy

The fruit has a high content of Vitamin C which prevents scurvy, repairs bones, maintains healthy teeth and ensures fast healing of wounds. Scurvy is a condition or disease that is caused by lack of Vitamin C.

3. Fights cancer

Kei apple is rich in antioxidants such as polyphenols and Vitamin C that fight the body against free radicals that may cause cancer and other diseases such as neurodegenerative and cardiovascular diseases.

4. Enhances absorption of iron

The fruit is rich in Vitamin C which enhances the absorption of iron in the body.

5. Helps in balancing fluid levels in the body

Kei apple is an excellent source of potassium, an important mineral that helps in balancing fluid levels in the body. It also protects the body against environmental aggressors.

6. Protects the body against external environmental aggressors

The fruit is rich in antioxidants that play a major role in protecting the body against external environmental aggressors.

7. Promotes good health

Kei apple fruit is a good source of different types of antioxidants and amino acids that help in promoting good health.

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