Feijoa Fruits
Few fruit bearers have received as much initial high-level attention and yet have amounted to so little as this member of the Myrtaceae, Feijoa sellowiana Berg. It is the best known of only 3 species in the genus which the German botanist, Ernst Berger, named after Don da Silva Feijoa, a botanist of San Sebastian, Spain. The specific name honors F. Sellow, a German who collected specimens in the province of Rio Grande do Sul in southern Brazil. The paucity of vernacular names is indicative of its lack of popularity. In Uruguay, it is called, in Spanish, guayabo del pais. It has been nicknamed "pineapple guava", "Brazilian guava" and "fig guava". The term "guavasteen" has been adopted in Hawaii. The most unlikely term, "New Zealand banana", has shown up in agricultural literature from that country.Description
The plant is a bushy shrub 3 to 20 ft (0.9-6 m) or more in height with pale gray bark; the spreading branches swollen at the nodes and white-hairy when young. The evergreen, opposite, short-petioled, bluntly elliptical leaves are thick, leathery, 1 1/8 to 2 1/2 in (2.8-6.25 cm) long, 5/8 to 1 1/8 in (1.6-2.8 cm) wide; smooth and glossy on the upper surface, finely veiny and silvery-hairy beneath. Conspicuous, bisexual flowers, 1 1/2 in (4 cm) wide, borne singly or in clusters, have 4 fleshy, oval, concave petals, white outside, purplish-red inside; 5/8 to 3/4 in (1.6-2 cm) long, and a cluster of numerous, erect, purple stamens with round, golden-yellow anthers. The fruit is oblong or ovoid or slightly pear-shaped, 1-1 1/2 to 2 1/2 in (4-6 cm) long and 1 1/8 to 2 in (2.8-5 cm) wide, with the persistent calyx segments adhering to the apex. The thin skin is coated with a "bloom" of fine whitish hairs until maturity, when it remains dull-green or yellow-green, sometimes with a red or orange blush. The fruit emits a strong long-lasting perfume, even before it is fully ripe. The thick, white, granular, watery flesh and the translucent central pulp enclosing the seeds are sweet or subacid, suggesting a combination of pineapple and guava or pineapple and strawberry in flavor. There are usually 20 to 40, occasionally as many as 100, very small, oblong seeds hardly noticeable when the fruit is eaten.
Food Uses
When preparing feijoas for eating or preserving, peeling should be immediately followed by dipping into a weak salt solution or into water containing fresh lemon juice. Both of these methods will prevent the flesh from oxidizing (turning brown). The flesh and pulp (with seeds) are eaten raw as dessert or in salads, or are cooked in puddings, pastry fillings, fritters, dumplings, fruit-sponge-cake, pies or tarts, or employed as flavoring for ice cream or soft drinks. Surplus fruits may be peeled, halved and preserved in sirup in glass jars, or sliced and crystallized, or made into chutney, jam, jelly, conserve, relish, sauce or sparkling wine.
The thick petals are spicy and are eaten fresh by children and sometimes by adults. The petals may be plucked without interfering with fruit set.
Food Value Per 100 g of Edible Portion*
| Moisture | 84% |
| Protein | 0.9% |
| Fat | 0.2% |
| Carbohydrates* | 10% |
| Ash | 0.5% |
| Minerals: | |
| Potassium | 166 mg |
| Sodium | 5 mg |
| Calcium | 4 mg |
| Magnesium | 8 mg |
| Phosphorus | 10 mg |
| Iron | 0.05 mg |
| Ascorbic Acid | 28-35 mg |
*Analyses reported in the literature.
**Sugar 6% compared to 13% in the orange.
The fruit is rich in water-soluble iodine compounds. The percentage varies with locality and from year to year but the usual range is 1.65 to 3.90 mg/kg of fresh fruit. Most types are high in pectin, so that 3 lbs (1.4 kg) of jelly can be made from 1 lb (.45 kg) of fruit. (hort.purdue.edu)


