Fiji Longan/Dimocarpus longan, commonly known as the longan is a tropical tree species that produces edible fruit. It is one of the better-known tropical members of the soapberry family Sapindaceae, to which the lychee and rambutan also belong. The fruit of the longan is similar to that of the lychee but less aromatic in taste.^[rx] It is native to tropical Asia and China.

The longan (from Cantonese lùhng-ngáahn, literally ‘dragon eye’), is so named because it resembles an eyeball when its fruit is shelled (the black seed shows through the translucent flesh like a pupil/iris). The seed is small, round, and hard, and of an enamel-like, lacquered black. The fully ripened, freshly harvested fruit has a bark-like shell, thin, and firm, making the fruit easy to peel by squeezing the pulp out as if one were “cracking” a sunflower seed. When the shell has more moisture content and is more tender, the fruit becomes less convenient to the shell. The tenderness of the shell varies due to either premature harvest, variety, weather conditions, or transport/storage conditions.

 

Fiji Longan is also known as Matoa has the scientific name Pometia pinata is a large tropical hardwood and fruit tree from the family of Sapindaceae and is closely related to lychee and maple. Naturally widespread, the trees grow through the Andaman Islands, China (Yunnan), Fiji, Indonesia, Laos, Malaysia, Nicobar Islands, Niue, Papua New Guinea, Philippines, Salomon Islands, Sri Lanka, Taiwan, Thailand, Tonga, Vanuatu, Vietnam, and Wallis and Futuna Islands. The genus is honored to the French botanist Pierre Pomet (1658-1699); the specific name is the Latin adjective “tinnitus, a, um” = fledged, winged, with reference to the pinnate leaves. Apart from Fiji longan it is also known as Fijian Longan, Dawa, Island Lychee, Oceanic Lychee, Pacific Lychee, Kasai, Megan, Taun, Fiji longan, Kasai tree, Kava, langsir, matoa and Taun tree. 

They are referred to as a “typical fruit from Papua” and are called Ton or Taun on the island of Papua New Guinea, Buah Matoa in Indonesia, and Kasai in Western Malaysia. The tropical fruits can be found throughout Indonesia and are highly variable in their appearance, with fruits in shades of green, red, purple, and brown. The flavor of the mature fruit is like the mixture of rambutan, lychee, and longan fruit, with a juicy texture and very sweet and is a popular fruit for eating.

Plant Description

Fiji Longan is small to a large, evergreen tree that grows about 12-50 m high with a large, spreading crown with a spread of 10–20 m across. Bole is cylindrical, straight up to 7 m high and diameter up to 30 cm with fawnish to reddish bark. The plant is found growing in common in lowland forest, forest edges, open woodlands, lava flows, and often cultivated in villages of the Pacific Islands, lowland riverbanks, humid woodlands, swampy forests, often on alluvial sites and along or near rivers and streams, but also on hillsides. The plant thrives on a wide range of soils but does best on slightly acidic to neutral, well-drained, fertile sandy, loamy and clayey soils, but will tolerate mildly alkaline soils of pH 7–8 and even soils with impeded drainage.

Leaves

The plant has alternate, stalked, compound leaves that are more than 1 m long. Each leaf consists of 4–15 pairs of leaflets and lacks a terminal leaflet. The papery to leathery leaflets are egg-shaped to drop-shaped, slightly to distinctly sickle-shaped. When young, the leaflets are bright red in color, turning dark green when mature, hairless to covered with hair, 6–40 cm long and 2–13 cm wide, and with toothed margins. The lowest pair of leaflets are smaller than others, round, pear-shaped, or cushion-shaped, 0.4–3 by 0.3–5 cm, appearing like a stipule, and with one of the leaflets reduced.

Flowers

The plant is monoecious, producing both male and female flowers in the same individual. The flowers are about 2–2.5 mm across, generally white to green-yellow, and occur on branched flowering stalks that are 15–70 cm long. Flowering normally takes place from July – October.

Fruits

Fertile flowers are followed by ellipsoid to round fruit that is 1.5-5 cm long and 1-3 cm wide. The pericarp is thin or moderately thick, smooth, greenish-yellow, reddish-brown, purplish, dark red or black, enclosing a gelatinous, sweet, juicy, white translucent, pulpy aril lode that partly encloses a single large seed with a curved embryo. The seed is egg-shaped, unequal-sided, up to 2.5 cm long and 1.5 cm wide, brown, and with a white covering (aril).

Health Benefits of Fiji Longan

Listed here are some well-known health Benefits of Fiji Longan for beauty and your body

1. Reduce Coronary Heart Disease

Vitamin C in Fiji Longan is supposed to help reduce heart disease. Additionally, if your diet is not healthy, you can use the Fiji Longan as a companion (fruit) as a counterweight.

2. Help control high blood pressure

Even not only the fruit flesh, extracts of seeds and leaves are also proven to help reduce high blood pressure.  Fiji Longan extract consists of diuresis, which surges the amount of fluid released from the body. When too much fluid in the body, blood pressure will automatically increase. So, if the fluid level returns to normal, it can make blood pressure drop. Research from Bandung states that at a dose of 100 milligrams per kilogram of body weight, this Fiji Longan extract can remove water and salt through urine so that a person’s blood pressure can go down. Even so, all the benefits of this Fiji Longan must still be studied further. However, it never hurts to try fruit with this unique taste, because it has fiber and nutritional content that is not inferior to other fruits.

3. Prevents the Development of Cancer

Cancer occurs when free radicals are free to access your body. Antioxidants are the real deal for free radicals because they will fight it and prevent the development of cancerous cells. As rich in vitamin C and vitamin E, Fiji Longan is an excellent source of powerful antioxidants.

4. Maintain Skin Health

The content of vitamin E in the Fiji Longan also has an important role in maintaining skin health by maintaining and improving skin moisture and elasticity. Together with some of the phytochemical compounds contained in the fruit of Fiji Longan, vitamin E is able to increase the regeneration of skin cells.

5. Cure dysentery

To treat dysentery using Fiji Longan, you can utilize the fruit leaves Fiji Longan to get the properties. Fiji Longan fruit marinade leaves were already believed long ago to remedy dysentery.

6. Stress Relief

Fiji Longan fruit is a healthy snack you could consume on a daily basis because it is so rich in vitamin E which is essential for stress relief. Whenever you feel stressed, sometimes your appetite is also improving, snacking with Fiji Longan fruit is not going to cause weight gain but instead, it will relieve your stress effectively.

7. Increases Endurance

During a workout you need endurance and to improve your work productivity you need to expand your endurance as well. Body endurance is closely related to your current stamina and the sugar compound found in Fiji Longan fruit is an excellent energy booster to increase your endurance.

8. Improve Male and Female Fertility

Fiji Longan fruit contains vitamin E. Vitamin E is a powerful antioxidant and important to protect and increase fertility health. For women, vitamin E contains antibodies that can protect eggs and increase fertility by 20 to 30 percent and can prevent membrane splits during pregnancy. As for men, vitamin E can improve sperm quality and motility in men.

9. Fights Viral Infection

Viral infection is not going to be fatal but fighting it is not an easy case at all. The best thing to fight this infection is by making sure your immunity system is in an excellent state and consuming Fiji Longan which is rich in vitamin C and antioxidants are the perfect protection against viral infection.

10. Improve Immune System

Fiji Longan fruits consist of vitamin C. Vitamin C has been known to prevent free radicals and helps to increase endurance. If you increase endurance, would be protected from viruses attacks the disease.

Traditional uses and benefits of Fiji Longan

• Masticated bark is applied to burns in Papua New Guinea.
• Both leaf and bark extracts are used, either individually or in combination with other plants, to treat a wide range of ailments, including stomach complaints, diarrhea, dysentery, pain relief (bones, muscles, joints, chest, headache), colds, flu, diabetes, and mouth ulcers in Fiji.
• In the Solomon Islands, oral medicine is prepared from the bark to protect babies from the devil.
• An infusion of the bark was used to treat diarrhea in children, stomach trouble, serious coughs accompanying fever, and constipation, and the leaves were also used medicinally in Tonga.
• It was used as a traditional treatment for chickenpox, with the patient being bathed in an infusion (hot water extract) of the bark in parts of Sarawak (Malaysia).
• Malays boil leaves and bark and use decoction in a bath for fever.
• The bark is used for festering sores in Java.
• The Fijian longan is often used in traditional medicine in the Pacific Islands.
• It is used to treat deep pains in the bones, migraine headaches, to aid expulsion of the placenta after childbirth, to relieve rheumatic aching of muscles and joints, to relieve fever, as a remedy for flu and cold, to cure diarrhea, stomach trouble, cough, fever, constipation, and diaper rash.
• Leaves are antimicrobial.
• Decoction of the leaves or bark is used medicinally against fever and sores.
• An infusion of the leaves is rubbed onto the heads of infants or is given internally to treat unclosed fontanelles.
• An abundant, thin, red gum obtained from the inner bark is considered to have many medicinal properties.
• An infusion of the bark is used as an emetic for mouth infections, colds, and mucous congestion, and to treat abdominal pains.
• Decoction of the bark is used to treat mouth cancers.

Culinary Uses

• The arillode of ripe fruit is sweet and is eaten fresh.
• The oily seeds are boiled or roasted and eaten.

Other facts

• Trees are occasionally planted as fences, boundary markers, avenue trees, shade trees, and wind-breaks and used in urban greenings.
• The tree provides a very good general-purpose hardwood timber that is particularly well suited to light construction, moldings, interior joinery and framing, non-impact tool handles, furniture, for canoes, boats and ship construction, agricultural and sports implements, paddles, flooring, plywood and veneers.
• Wood is also used to produce excellent charcoal.
• Canoe putty is extracted from the inner bark.
• An extract of the leaves was formerly used to dye hair black in Fiji.
• Leaves are used against rice pests.
• A gum obtained from the inner bark is used to waterproof canoes.
• Hair shampoo is made from bark.
• Timber can be used for furniture and cabinetwork but must be dried to sufficiently low moisture content.
• Each stem of the fruit contains 23-76 pieces weighing between 0.5 – 1.0 kg.

Precautions

• Be careful with allergic reactions because it is not the kind of fruit you commonly find in the market. If you are allergic to lychee or longan fruit, perhaps avoiding this fruit is a wise move.
• If you are not familiar with this fruit, don’t try to consume the kind of fruit that looks like Fiji Longan fruit because the chance it is not Fiji Longan fruit is higher and probably could be harmful to your body.

References

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