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Worldwide there are over 800 species of the genus Ficus (Latin: fig) and of the more than 10 species found in the Philippines, Balete is a shared common name for six of them: (1)
Ficus benjamina, salisi (2) Ficus elastica , Indian rubber tree (3) Ficus indica, baleteng-baging (4) Ficus payapa, payapa (5) Ficus retusa, marabutan, and (6) Ficus stipulosa, botgo.

Family Moraceae
Balete
Ficus elastica
INDIAN RUBBER TREE

Common names  
Balete (Tag.)  
Indian rubber tree (Engl.)  
Rubber tree
Rubber plant  
Assam rubber (Engl.)  

Botany
Glabrous spreading tree, up to 8 meters high, with numerous adventitious roots from the trunk and branches.
Leaves are large and smooth, leathery and shiny, slenderly acuminate and entirem with prominent midribs. The stipules are usually red, often as long as the leaves.

Distribution
Introduced, but now pantropic in cultivation. Popularly planted as a roadside tree.

Chemical constituents and characteristics
The latex contains caoutchouc, 10-30 per cent; a bitter substance; albuminoid. The wax contains cerotic acid.

Parts utilized
Rootlets and bark.

Uses
Folkloric
- Skin eruptions and dermatitis: Boil one cup of chopped bark in 1/2 gallon of water for 10 mins; use decoction to wash involved areas, twice daily.
- Decoction of aerial rootlets used for wounds, cuts and sores.
- Bark is astringent and used as styptics for wounds.
- Decoction of latex for parasitic worms (trichuris trichura).
• In northern Cameroon, used as fertility enhancement. source
Plant that Detoxify the Air
- Of the ficus plants tested, the rubber plant is the best for removing chemical toxins from the indoor environment, especially formaldehyde.

Studies
Antiinflammatory: Study showed marked inhibition of experimentally induced inflammation, similar to those achieved with indomethacin, an effect attributed to the presence of flavonoids.
Hypoallergenicity: (1) Ficus elastica has been suggested as a possible source of natural rubber latex without the allergenicity of latex protein from Hevea basiliensis. (2) Prelim studies showed that natural rubber from Ficus elastica do not cause allergic reactions in hypersenstivie humans

Antimicrobial / Constituents: Study isolated four known compounds from the leaves of F elastica – emodin, sucrose, morin and rutrin. Results showed antimicrobial activity against B cereus and Pseudomoas aeruginosa. No Antifungal activity was observed.

Superstition
An occasional folkloric advice against having it as a decorative bonzai inside the house as it is believed to invite ghosts.

Availability
Wild-crafted.
 



Additional Sources and Suggested Readings
(1)
Rubber Plants (Ficus elastica) / Plants that Detoxify the Air
(2)
The anti-inflammatory effect of a crude aqueous extract of the root bark of Ficus elastica in the rat / Sackeyfio AC Lugeleka OM: / ARCH INT PHARMACODYN THER 1986 May; 281(1):169-76
(3)
The anti-inflammatory effect of a crude aqueous extract of the root bark of "Ficus elastica" in the rat / Arch Int Pharmacodyn Ther. 1986 May;281(1):169-76
(4)
Occupational Latex Allergy: The End of the Innocence / Holzman, Robert S. MD; Katz, Jonathan D. MD
(5)
Hypoallergenic natural rubber products from parthenum argentatum (gray) and other non-hevea brasiliensis species / FreePatentOnLine

(6)
Investigation on the Chemical Constituents of the Leaves of Ficus elastica Roxb. and Their Antimicrobial Activity / Hassan Abdalla Almahy et al / Pertanika J. Sci. & Technol. 11(1): 57 - 63 (2003)


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