The wax apple, scientifically known as Syzygium samarangense, is a captivating fruit tree with a wide distribution across the tropics. This article explores various aspects of the wax apple, from its botanical characteristics and cultivation to its culinary uses and potential health benefits.
Syzygium samarangense belongs to the Myrtaceae family, a group that includes well-known plants like guava, allspice, cloves, and Surinam cherries. Native to an area encompassing the Greater Sunda Islands, the Malay Peninsula, and the Andaman and Nicobar Islands, the wax apple has been introduced to and cultivated in numerous tropical regions.
The tree itself is a tropical evergreen, typically reaching a height of up to 12 meters (39 feet). It features elliptical leaves that are 10-25 cm (4-10 in) long and 5-10 cm (2-4 in) broad. These leaves are aromatic when crushed. The trunk is relatively short, supporting a wide, open crown that starts low on the tree.
The flowers of the wax apple are a delicate white to yellowish-white, measuring about 2.5 cm (1 in) in diameter. They possess four petals and numerous stamens. These flowers grow in panicles of between three and 30 near the branch tips. Notably, the flowers and subsequent fruit are not exclusive to the leaf axils; they can emerge from nearly any point on the trunk and branches.
The fruit is a bell-shaped berry, typically 4-6 cm (1.6-2.4 in) long in wild plants. Its color can vary widely, ranging from white, pale green, or green to red, purple, crimson, deep purple, or even black. At the tip of the fruit are four fleshy calyx lobes. The skin is thin, and the flesh is white and spongy. Inside each berry, one or two rounded seeds, no larger than .8 cm (0.3 in), are found nestled in a cotton candy-like mesh.
Read also: Wax apple benefits: A comprehensive guide
When ripe, the fruit puffs outwards, exhibiting a slight concavity in the middle of the underside of the "bell." Healthy wax apples often have a light sheen.
Despite its name, the wax apple only shares a visual similarity with apples in terms of color. Its taste, fragrance, and density are distinct. The flavor is often compared to that of a snow pear, while its liquid-to-flesh ratio is similar to a watermelon. The flesh has a loose weave, with a flavorless, cotton candy-like mesh surrounding the seed(s).
Several cultivars have been developed to produce larger fruit. In Southeast Asia, the dark-colored varieties are often called "Black Pearl" or "Black Diamond." The pale greenish-white varieties, known as "Pearl," are highly sought after in fruit markets and command high prices.
The wax apple thrives in tropical and subtropical climates, requiring full sun exposure and temperatures above 18 degrees Celsius. Some growers in Arizona suggest providing filtered light or afternoon shade, especially in hot climates like Phoenix. They also recommend maintaining a soil pH of 6 and regularly applying soil sulfur, chelated iron, and chelated manganese. Protection from temperatures below 30°F (-1°C) is necessary in winter.
The tree can be propagated from seed, although cuttings or budding are also viable methods. Grafting is practiced in South-East Asia. Seedlings are sometimes used as rootstocks because of their hardiness and resistance to termites.
Read also: Apple Jacks Mascots: Sweet and Controversial
Some growers have noted that young fruit can be susceptible to sunburn, leading to brown, soft, and deformed areas.
The Java apple is known to be a heavy bearer when grown in good soil. A single tree can yield up to 700 fruits in a year. The tree tends to produce a lot of fruit per branch, which can sometimes cause branches to bend or break under the weight. Bearing of clonal trees can start after 3-5 years. The time it takes for the fruit to mature and ripen is about 2 months, or ripens 30-40 days after anthesis.
The wax apple goes by many names depending on the region. In the Philippines, it is known as macopa or makopa. In Thailand, it is called chom phuu, while in Chinese, it is referred to as lian wu. In French, it's known as pomme d’eau de Formose. Other common names include Java apple, rose apple, water apple, love apple, mountain apple, and Jamaican apple.
There are various named cultivars and varieties, including:
The fruit is often served uncut, with the core removed, to maintain its bell-shaped appearance. In the Indian Ocean islands, it is used in salads and lightly sautéed dishes.
Read also: Apple Skin Wax Analysis
Thai Wax apples are suitable for both raw and cooked applications, but they are most commonly enjoyed fresh with the core and seeds removed. When eaten raw, they can be served with salt or sugar for added flavor, or sliced up for salads, fruit bowls, and mixed drinks. They are frequently sautéed or preserved for sauces and jams, or used as a topping for ice cream, pancakes, and French toast. They’re often stewed with traditional apples to create a medley that can be turned into applesauce or syrup for cocktails.
In Southeast Asia, Thai Wax apples are used in a dish called rojak, a mix of pineapples, unripe mangoes, jicama, cucumber, prawn paste, and a spicy dressing. They may also be hollowed out and filled with rice and meat, topped with a tomato and minced garlic sauce. They pair well with onions, garlic, chilies, mint, lemon, fennel, cinnamon, sharp cheeses, and greens.
Chambakka Achar, a traditional South Indian pickle made with ginger, garlic, chili powder, mustard seeds, green chilis, and fenugreek powder, is a popular preparation.
Thai Wax apples are a source of vitamin C, which supports immune health, collagen production, iron absorption, and infection defense. They also provide fiber, which promotes digestion, gut health, blood sugar and pressure control, cholesterol reduction, and nutrient absorption.
The fruit contains calcium and potassium, nutrients that support bone formation and density, muscle and nerve function, blood clotting, hormone and enzyme regulation, cardiac function, electrolyte balance, and kidney stone prevention. It also contains carotene, which aids in cholesterol management, calcium absorption, eye health, and cognitive function.
In traditional medicine, the flowers are used in Taiwan to treat fever, while in India, the fruit is used as a diuretic and tonic for brain and liver health.
While native to Southeast Asia, the wax apple has been introduced to various regions worldwide. It has become naturalized in Thailand, Bangladesh, Taiwan, the Philippines, India, Malaysia, Samoa, Indonesia, Vietnam, Cambodia, Zanzibar, and the Tanzanian Island of Pemba. It was introduced to Jamaica in the early 20th century and then made its way to Suriname, Israel, and the islands of Curacao, Aruba, and Bonaire.
tags: #wax #apple #tree #information
