Abacá
Encyclopedia
Abacá, Musa textilis (ɑːbəˈkɑː ah-bə-KAH, from Spanish "abacá" for Musa textilis) is a species of banana
Banana
Banana is the common name for herbaceous plants of the genus Musa and for the fruit they produce. Bananas come in a variety of sizes and colors when ripe, including yellow, purple, and red....

 native to the Philippines
Philippines
The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

, grown as a commercial crop in the Philippines, Ecuador, and Costa Rica. The plant is of great economic importance, being harvested for its fibre, once generally called Manila hemp
Manila hemp
Manila hemp, also known as manilla, is a type of fiber obtained from the leaves of the abacá , a relative of the banana. It is mostly used for pulping for a range of uses, including speciality papers. It was once used mainly to make manila rope, but this is now of minor importance...

, extracted from the trunk or pseudostem. On average, the plant grows about 12 feet (4 meters) tall. The fiber was originally used for making twines and ropes; now most abacá is pulped and used in a variety of specialized paper products including tea bags, filter paper and banknotes. It is classified as a hard fiber, along with coir
Coir
Coir is a natural fibre extracted from the husk of coconut and used in products such as floor mats, doormats, brushes, mattresses etc. Technically coir is the fibrous material found between the hard, internal shell and the outer coat of a coconut. Other uses of brown coir are in upholstery...

, henequin and sisal
Sisal
Sisal is an agave that yields a stiff fibre traditionally used in making twine, rope and also dartboards. The term may refer either to the plant or the fibre, depending on context...

.

Abacá was first cultivated on a large scale in Sumatra
Sumatra
Sumatra is an island in western Indonesia, westernmost of the Sunda Islands. It is the largest island entirely in Indonesia , and the sixth largest island in the world at 473,481 km2 with a population of 50,365,538...

 in 1925 under the Dutch
Dutch Empire
The Dutch Empire consisted of the overseas territories controlled by the Dutch Republic and later, the modern Netherlands from the 17th to the 20th century. The Dutch followed Portugal and Spain in establishing an overseas colonial empire, but based on military conquest of already-existing...

, who had observed its cultivation in the Philippines for cordage since the 19th century, followed up by plantings in Central America
Central America
Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...

 in 1929 sponsored by the U.S. Department of Agriculture. Commercial planting began in 1930 in British North Borneo; with the commencement of WWII, the supply from the Philippines was eliminated by the Japanese
Empire of Japan
The Empire of Japan is the name of the state of Japan that existed from the Meiji Restoration on 3 January 1868 to the enactment of the post-World War II Constitution of...

. Today, abaca is produced commercially in only three countries: Philippines, Ecuador, and Costa Rica. Yields are highest in Costa Rica, but the industry is new and planted acreage limited.

Composition

The leaves grow from the trunk of the plant, the bases of the leaves form a sheath (covering) around the trunk; there are approximately 25 of these, with 5 cm in diameter and from 12 to 25 leaves with overlapping petiole
Petiole (botany)
In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules. Leaves lacking a petiole are called sessile, or clasping when they partly surround the...

s, covering the stalk to form a shrub
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...

, "false trunk" or pseudostem about 30 to 40 cm in diameter. They grow in succession, with the oldest growing from the bottom of the trunk and successively younger ones from the top. The sheaths contain the valuable fibre. The coarse fibres range from 5 to 11½ feet (1.5 to 3.5 metres) in length. They are composed primarily of cellulose
Cellulose
Cellulose is an organic compound with the formula , a polysaccharide consisting of a linear chain of several hundred to over ten thousand β linked D-glucose units....

, lignin
Lignin
Lignin or lignen is a complex chemical compound most commonly derived from wood, and an integral part of the secondary cell walls of plants and some algae. The term was introduced in 1819 by de Candolle and is derived from the Latin word lignum, meaning wood...

, and pectin
Pectin
Pectin is a structural heteropolysaccharide contained in the primary cell walls of terrestrial plants. It was first isolated and described in 1825 by Henri Braconnot...

.

Applications

Most abacá fiber is pulped and processed into specialty paper used in tea bag
Tea bag
A tea bag is a small, porous sealed bag containing tea leaves and used for brewing tea. Tea bags are commonly made of paper, silk or plastic. The bag contains the tea leaves while the tea is brewed, making it easier to dispose of the leaves, and performs the same function as a tea infuser...

s, vacuum bags, currency, and more. It can be used to make handcrafts like bags, carpets, clothing and furniture. Abacá rope is very durable, flexible and resistant to salt water damage, allowing its use in hawser
Hawser
Hawser is a nautical term for a thick cable or rope used in mooring or towing a ship. A hawser passes through a hawsehole, also known as a cat hole, located on the hawse....

s, ship's lines and fishing net
Fishing net
A fishing net or fishnet is a net that is used for fishing. Fishing nets are meshes usually formed by knotting a relatively thin thread. Modern nets are usually made of artificial polyamides like nylon, although nets of organic polyamides such as wool or silk thread were common until recently and...

s. Abacá fiber was once used primarily for rope, but this application is now of minor significance. Lupis is the finest quality of abacá. Sinamay is woven chiefly from abacá.

Harvesting

The plant is normally grown in well-drained loam
Loam
Loam is soil composed of sand, silt, and clay in relatively even concentration . Loam soils generally contain more nutrients and humus than sandy soils, have better infiltration and drainage than silty soils, and are easier to till than clay soils...

y soil, using pieces of mature root planted at the start of the rainy season. Growers harvest abacá fields every three to eight months after an initial growth period of 12–25 months and a total lifespan of about 10 years. Harvest generally includes having several operations concerning the leaf sheaths:
  • tuxying (separation of primary and secondary sheath)
  • stripping (getting the fibres)
  • drying (usually following tradition of sun-drying).


In Costa Rica, more modern harvest and drying techniques are being developed to accommodate the very high yields obtained there.

The fibers can then be spun into twines or cordage, or used in the pulping process for fine paper.

Scientific classification

The abacá plant belongs to the banana
Banana
Banana is the common name for herbaceous plants of the genus Musa and for the fruit they produce. Bananas come in a variety of sizes and colors when ripe, including yellow, purple, and red....

 family, Musaceae
Musaceae
Musaceae is a botanical name for a family of flowering plants. The family is native to the tropics of Africa and Asia. The plants have a large herbaceous growth habit with leaves with overlapping basal sheaths that form a pseudostem making some members appear to be woody trees.The family has been...

; it resembles the closely related wild seeded bananas, Musa acuminata
Musa acuminata
Musa acuminata is a species of wild banana native to Southeast Asia. It is the progenitor of modern edible bananas, along with Musa balbisiana. First cultivated by humans around 8000 years ago, it is one of the earliest examples of domesticated plants.-Taxonomy and nomenclature:Musa acuminata...

and Musa balbisiana
Musa balbisiana
Musa balbisiana is a species of wild banana native to South Asia. It is one of the ancestors of modern cultivated bananas along with Musa acuminata. It grows lush leaves in clumps and grows with a more upright habit than most cultivated bananas. Flowers grow in inflorescences coloured red to...

. Its scientific name is Musa textilis.

External links

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