Acacia mangium

Acacia mangium
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Fabales
Family:	Fabaceae
Genus:	Acacia
Species:	A. mangium
Binomial name
Acacia mangium Willd.
Range of Acacia mangium
Synonyms
Acacia glaucescens sensu Kaneh. & Hatus. Acacia holosericea A. Cunn. Acacia holosericea G. Don var. glabrata auct. non Maiden Acacia holosericea G. Don var. multispirea auct. non Domin Acacia holosericea G. Don var. neurocarpa auct. non (Hook.)Domin Mangium montanum Rumph. Racosperma mangium (Willd.) Pedley[1]

Acacia mangium is a species of flowering tree in the pea family, Fabaceae, that is native to northeastern Queensland in Australia, the Western Province of Papua New Guinea, Papua, and the eastern Maluku Islands.^[2] Common names include Black Wattle, Hickory Wattle and Mangium. Its uses include environmental management and wood.^[1]Acacia mangium grows up to 30 metres (98 ft) tall, often with a straight trunk. This tree is widely used in Goa in the mining industry for rehabilitation of the waste dumps as it is a drought resistant species and binds the sterile mine waste consisting of lateritic strata. Like many other legumes, it is able to fix nitrogen in the soil^[3]. Acacia mangium has about 142,000 seeds/kg^[4].

Chemistry

The gum contains 5.4% ash, 0.98% N, 1.49% methoxyl, and by calculation, 32.2% uronic acid^[5]. The sugar composition after hydrolysis: 9.0% 4-0-methylglucuronic acid, 23.2% glucuronic acid, 56% galactose, 10% arabinose, and 2% rhamnose.

References

1. ^ ^{a b} "Acacia mangium - ILDIS LegumeWeb". www.ildis.org. http://www.ildis.org/LegumeWeb?version~10.01&LegumeWeb&tno~23511&genus~Acacia&species~mangium. Retrieved 2008-04-26. 
2. ^ Francis, John K. (2003-01-01). "Acacia mangium Willd" (PDF). Tropical Tree Seed Manual. Reforestation, Nurseries & Genetics Resources. http://www.rngr.net/Publications/ttsm/Folder.2003-07-11.4726/Acacia%20mangium.pdf/file. Retrieved 2009-02-24. ^{[dead link]}
3. ^ "Acacia mangium". www.hort.purdue.edu. http://www.hort.purdue.edu/newcrop/duke_energy/Acacia_mangium.html. Retrieved 2008-04-26. 
4. ^ "Growing Process of Tropical Trees-(Compiled version)". ftbc.job.affrc.go.jp. http://ftbc.job.affrc.go.jp/html/english/ph_collection/html/sougou.htm#table. Retrieved 2008-04-26. 
5. ^ Anderson, D.M.W. (1978). "Chemotaxonomic aspects of the chemistry of acacia gum exudates.". Kew Bull. 32 (3): 529–536. doi:10.2307/4109654. JSTOR 4109654. 

Gallery

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  Trunk in Kolkata, West Bengal, India.

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  Tree in Kolkata, West Bengal, India.

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  Leaves with fruit pod at canopy in Kolkata, West Bengal, India.

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  Leaves at canopy on the branchesin Kolkata, West Bengal, India.

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  Leaves at canopy in Kolkata, West Bengal, India.

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  Acacia mangium Branch and Pods

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  Acacia mangium Old Bark