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Eugenia stipitata
In Singapore: Araza Fruit, Araca Boi (Grown in Singapore)
Araçá-boi (Eugenia stipitata) is a fruit tree of the Myrtle family native to the western Amazon. It is grown mainly for its very acidic fruit, which is usually processed into juice, nectar and jam; seed propagation and shade-tolerant young trees are the key to cultivation.
Eugenia stipitata (Araza, Portuguese common names araçá, araçá-boi Portuguese pronunciation: [ɐɾɐˈsa ˈboj], Spanish common name arazá, from Guarani arasa; also known as membrillo in Ecuador) is a fruit tree native to the Amazon rainforest in Brazil, Colombia, Peru and Ecuador.
During the first, and in some cases also second or third, year it can be intercropped with annual cultures. The tree is useful for agroforestry systems and growth in the shade of taller trees appeared to be higher than under less intense shade.
The propagation is done by seed, which is common in most fruit trees. The seeds have the best germination rate when they are extracted from the completely mature fruits. The success of germination stays in 80% up to 60 days when the seeds are kept in water.
This climacteric fruit contains a high level of acidity, averaging pH 2.4 for the juice, and that confers to it a good quality for processing. Moreover, it contains a high level of nitrogen and potassium. The dry weight contains 8-10% of proteins, 5–6.5% of fibre, 65–72% of other carbohydrates and a small amount of calcium, 0.16–0.21%, 10-12ppm of zinc and also some phosphorus, potassium and magnesium. For 100g of fruit, there is approximately 775 mg of vitamin A, 9.84 mg of vitamin B1, 768 mg of vitamin C (which is double that of an orange). The pulp of the fruit contains 4% of dry matter, 11.9% of proteins, 49.2% of sugars (glucose 3.1%, fructose 33.9%, sucrose 17.2%), 4% of ash, 39% of total dietary fibres amino acids and minerals. The main constituents of the oil of the fruit of E. stipitata are sesquiterpenes which the main component is germacrene B and which confers an antioxidant activity at the fruit. Furthermore, ethanolic extract of the fruit showed antimutagenic and antigenotoxic properties which suggest that this fruit could work as preventive agent against cancer.
Eugenia azeda · Grumichama · Eugenia calycina · Eugenia paranapanemensis · Eugenia pitanga · Eugenia pyriformis · Mountain stopper · Eugenia squamiflora · Eugenia subterminalis · Surinam cherry · Eugenia valsuganana · Stopper
[Contains information from Leaf Area Index (LAI) and Heritage Trees from data.gov.sg (National Parks Board), made available under the terms of the Singapore Open Data Licence version 1.0]
Text excerpted from the Wikipedia article Eugenia stipitata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
