Sahing
Canarium luzonicum Blume
MANILA ELEMI
Ch'ing-kuo

Other scientific names  Common names
Canarium villosum Blume Alañgi (Ilk) 
Pimela luzonica  Blume Alanki (Ilk) 
Canarium album Blanco  Antang (Ibn)
Canarium commune F. Vill.  Anteng (Ilk) 
Canarium carapifolium Perk.  Bakan (Ting.) 
Canarium polyanthum Perk.  Bakoog (Ilk)
Canarium triandrum   Basiad (Tag) 
  Belis (Tag) 
  Bulau (Pang) 
  Malapili (Bik) 
  Manila Elemi (English) 
  Palsahingin (Tag) 
  Piling liitan (Tag) 
  Pilauai (Tag) 
  Pisa (Tag) 
  Chinese olive (Engl.)
  Tugtugin (Tag)
  Brea blanca, arbol a brea (Spanish) 

Gen info
Canarium belongs to the family Burseraceae with 75 known genera and about 550 species.

Of the canarium species, there are 75 known and nine of which are found in the Philippines, with at least four of econimic importance: Canarium ovatum (Pili), C. indicum, C. album, and C. luzonicum (Sahing,Manila elemi).

Resin called elemi is obtained from members of the family Bursecraceae, particularly Canarium, Dacryodes, and Protium. As with other resins grouped as balsams, elemis are more viscous than oleoresins, semisolid, and very fragrant. Its soft and malleable nature comes from its liquid sesquiterpenes.The resin is primarily from volatile sesquiterpenes and non-volatile triterpenes.

Although "elemi" used to be generically applied to a large number of oleoresins, it is now used to describe Manila elemi, from Canarium luzonicum, one of the best known and single largest source of the world's supply of elemi. Manila elemi is a soft and fragrant oleoresin, oily, paie yellow to greenish, of honey consistency, balsamic in odor and bitter tasting.

France has been the largest single market, followed by Germany, and increasingly by Japan.

Botany
A large tree reaching a height of more than 30 meters, the trunk a meter or more. Leaves are alternate, pinnate, and about 30 cm long, commonly with three opposite pairs and a terminal leaflet. The leaflets are smooth, oblong-ovate,m 12-20 cm long, 3-7 cm wide, smooth and shiny on both sides, pointed at the apex, rounded or obtusely pointed at the base. Flowers are clustered and borne on large compounded inflorescences. Fruit is ovoid, 4-5 cm long, 2-2.5 cm wide, smooth, with a single seed.

Distribution
Primary forests at low and medium altitudes

Parts utilized
Fruit and sap

Constituents and properties
• Oleoresin (Manila Elemi), d-alpha-phellandrene, dipentene, sesquiterpine alchol, elemicin, trimethyl homogallic aldehyde, trimethyl homogallic acid, d-limonene, terpene, terpinolene, pinene.
• Rubifacient and antirheumatic.
• Antiseptic, fungicidal and insecticidal.

Uses
Folkloric
 
Arthritis and rheumatism - Apply oleoresin over affected parts.
Boils, abscesses, and furuncles - Apply oleoresin over affected area to induce swelling to come a point.
Used for burns and sores.
For fevers and chills, the tree bark is struck with a bolo or sharp instrument to induce the sap to bleed. The tree sap is allowed to hardened overnight and a corn-sized drop is taken with water.
The tree bark is commonly used for postpartum baths, one of many ingredients in a decoction (balat ng buboy, palad ng buli, dahon ng payang-payang, galamay amo, and three pieces of batong buhay).
In plaster, heated and applied to the chest to stop secvere coughing.

Availability
Commercial and wild-crafted.



Additional Sources
Plant Resins: Chemistry, Evolution, Ecology
http://books.google.com/books?id=zY6tOeej-LAC&pg=PA356&lpg=PA356&dq=canarium+luzonicum+botany&source
=web&ots=UfNYYNOL_s&sig=LJuAjzut8UJwRCvQrhMg1WdGbDo&hl=en&sa=X&oi=book_result&resnum=5&ct=result#PPA356,M1