A review of dipterocarps - Center for International Forestry Research

Non-Timber Forest Products from Dipterocarps
Vateria indica, are mostly used for tanning and medicinal
purposes. To increase the collector’s income,
the leaves must be collected at the appropriate season
and stage of growth and be properly dried and
graded.
5. Bark: This is used for tanning and medicinal purposes,
for example: Dipterocarpus alatus (medicine),
D. tuberculatus (tannin), Hopea odorata (tannin),
H. parviflora (tannin), Shorea robusta (tannin,
medicine, gum), Vateria copallifera (toddy fermentation)
and V. indica (medicine).
Only the bark of S. robusta is utilised on a large scale.
Collection of bark from standing trees is detrimental
to tree growth, so improved methods of bark
extraction are needed or bark utilised only from felled
or dead trees.
There is good scope for greater utilisation of various
dipterocarp NTFPs for socioeconomic development.
This will be enhanced by further research and training in
a range of technologies. These include: oleoresin and
dammar tapping techniques; seed, leaf and bark
harvesting; grading and processing standardisation;
chemical evaluation of derivatives; and marketing and
pricing analysis.
Acknowledgements
We would like to thank Manuel Ruiz-Perez (Center for
International Forestry Research) for comments and suggestions
for the improvement of this chapter.
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