Syzygium samarangense
{{short description|Species of Asian fruit tree in the flowering plant family Myrtaceae}}
{{Distinguish|text=Malay apple (Syzygium malaccense), or the water apple (Syzygium aqueum) }}
{{Use dmy dates|date=January 2020}}
{{Speciesbox
| image = Hoa của loài roi.jpg
| image2 = Syzygium fruit.jpg
| status = LC
| status_system = IUCN3.1
| genus = Syzygium
| species = samarangense
| authority = (Blume) Merr. & L.M.Perry{{WCSP | accessdate = 16 July 2018 }}
| synonyms =
{{Species list
| Myrtus samarangensis | Blume
| Jambosa samarangensis | (Blume) DC.
| Eugenia samarangensis | (Blume) O.Berg
| Myrtus obtusissima | Blume
| Jambosa obtusissima | (Blume) DC.
| Eugenia alba | Roxb.
| Jambosa alba | (Roxb.) G.Don
| Jambosa ambigua | Blume
| Jambosa timorensis | Blume
| Eugenia mindanaensis | C.B.Rob.
}}
}}
Syzygium samarangense is a species of flowering plant in the family Myrtaceae, native to an area that includes the Greater Sunda Islands, Malay Peninsula, and the Andaman and Nicobar Islands, but introduced in prehistoric times to a wider area{{Cite book |author=Julia F. Morton |year=1987 |title=Fruits of Warm Climates |chapter=Java apple |pages=381–382 |publisher=Florida Flair Books |location=Miami, FL |isbn=978-0-9610184-1-2|url=http://www.hort.purdue.edu/newcrop/morton/java_apple.html}} and now widely cultivated in the tropics. Common names in English include wax apple, Java apple, Semarang rose-apple, and wax jambu.{{GRIN | name = Syzygium samarangense (Blume) Merr. & L.M.Perry | id = 312990 | accessdate = 14 March 2016 }}
Description
Syzygium samarangense is a tropical tree growing to {{Convert|12|m|ft|abbr=on}} tall, with evergreen leaves {{Convert|10|-|25|cm|in|abbr=on|0}} long and {{Convert|5|-|10|cm|in|abbr=on|0}} broad. The leaves are elliptical, but rounded at the base; they are aromatic when crushed. The trunk is relatively short, with a wide {{En dash}} yet open {{En dash}} crown starting low on the tree. The bark is pinkish-gray in color, and flakes readily.{{Cite web|url=https://florafaunaweb.nparks.gov.sg/special-pages/plant-detail.aspx?id=4150|title=Syzygium samarangense|website=Singapore National Parks}}
The flowers are white to yellowish-white, {{convert|2.5|cm|in|abbr=on|0}} diameter, with four petals and numerous stamens. They form in panicles of between three and 30 near branch tips. The resulting fruit is a bell-shaped, edible berry, with colors ranging from white, pale green, or green to red, purple, or crimson, to deep purple or even black. The fruit grows {{Convert|4|-|6|cm|in|abbr=on|1}} long in wild plants, and has four fleshy calyx lobes at the tip. The skin is thin, and the flesh is white and spongy. Each berry holds one or two rounded seeds not larger than {{Convert|.8|cm|in|abbr=on|1}}. The flowers and resulting fruit are not limited to the axils of the leaves, and can appear on nearly any point on the surface of the trunk and branches. When mature, the tree is considered a heavy bearer, yielding up to 700 fruits in a crop.
When ripe, the fruit puff outwards, with a slight concavity in the middle of the underside of the "bell". Healthy wax apples have a light sheen to them. Despite its name, a ripe wax apple only resembles an apple on the outside in color. It does not taste like an apple, and it has neither the fragrance nor the density of an apple. Its flavor is similar to a snow pear, and the liquid-to-flesh ratio of the wax apple is comparable to a watermelon. Unlike either apple or watermelon, the wax apple's flesh has a very loose weave. The very middle holds a seed situated in a sort of cotton candy-like mesh. This mesh is edible, but flavorless. The color of its juice depends on the cultivar; it may be purple to entirely colorless.{{Citation needed|date=March 2019}}
Uses
= Culinary =
{{Nutritional value |float=right| name=Rose-apples, raw
| kcal=25
| kJ=105
| protein=0.60 g
| fat=0.30 g
| carbs=5.70 g
| calcium_mg=29
| iron_mg=0.07
| magnesium_mg=5
| phosphorus_mg=8
| potassium_mg=123
| sodium_mg=0
| zinc_mg=0.06
| vitC_mg=22.3
| thiamin_mg=0.020
| riboflavin_mg=0.030
| niacin_mg=0.800
| cholesterol = 0 mg
| note=[https://web.archive.org/web/20160701165224/https://ndb.nal.usda.gov/ndb/foods/show/2381?fgcd=&manu=&lfacet=&format=&count=&max=35&offset=&sort=&qlookup=rose+apple Link to Full Nutrient Report of USDA Database entry]
}}
Several cultivars with larger fruit have been selected. In general, the paler or darker the color, the sweeter it is.{{clarify|date=October 2016}}
In Southeast Asia, the black ones are nicknamed "Black Pearl" or "Black Diamond", while the very pale greenish-white ones, called "Pearl", are among the highest-priced ones in fruit markets. The fruit is often served uncut, but with the core removed, to preserve the unique bell-shaped presentation.
In the Indian Ocean islands cuisine, the fruit is frequently used in salads, as well as in lightly sautéed dishes. It is mainly eaten as a fruit and also used to make pickles called chambakka achar.{{cite web|title=Kerala style Chambakka Achar(Kerala Style Love Apple Pickle)|date=27 February 2023|url=https://secretindianrecipe.com/recipe/kerala-style-chambakka-acharkerala-style-love-apple-pickle|ref={{sfnref|Indian Recipes, Vegetarian Recipes|2023}}|access-date=1 March 2025}}
In the Philippines, its local name is macopa or makopa. Its precolonial name is dambo. Because of their similarity in appearance, it is often confused with tambis (Syzygium aqueum),{{Cite book|url=https://books.google.com/books?id=cjHCoMQNkcgC|title=The Encyclopedia of Fruits and Nuts|last1=Janick|first1=Jules|last2=Paull|first2=Robert|publisher=CABI|year=2008|pages=552, 553|isbn=9780851996387}} although the latter is more commonly cultivated.
Gallery
File:2014-04-26 Syzygium samarangense 04 anagoria.JPG|Cross-section of the fruit
File:2014-04-26_Syzygium_samarangense_01_anagoria.JPG|Fruit packed for sale
File:Bell_Fruit_-_%E0%B4%9A%E0%B4%BE%E0%B4%AE%E0%B5%8D%E0%B4%AA_04.JPG|Fruit in the tree
File:Taiwan_fruits.jpg|Fruit for sale
File:Jambakai01.jpg|Fruit in Puducherry
File:Jambakai02.jpg|Tree in Puducherry
File:Wax apple (Syzygium samarangense).jpg|Red variety of fruit
File:Wax apple (Syzygium samarangense) with leaves.jpg|Fruit with leaves
File:Wax apple (Syzygium samarangense) Tree lower trunk.jpg|Lower trunk
File:Lainwu (Wax apple) diamond P00063.JPG|"Black Pearl" wax apple
File:Fruits of Syzygium samarangense at a street-side shop in Jagadishpur Hat, West Bengal, India.jpg|Fruits of Syzygium samarangense, for sale in West Bengal, India.
File:Wax apple2.jpg
File:Man trang.jpg
References
{{Commons category|Syzygium samarangense}}
{{Reflist}}
{{Taxonbar|from=Q11643111}}
Category:Flora of tropical Asia