RASOANAIVO Case study of Madagascar .pdf
Nom original: RASOANAIVO_Case study of Madagascar.pdf
Titre: Diapositive 1
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TURNING OVER A NEW LEAF
For a More Sustainable Supply of Medicinal Tree Products
Case study of Madagascar
Philippe Rasoanaivo
Institut Malgache de Recherches Appliquées
Antananarivo, Madagascar
Trees threatened
by medicinal bark harvesting
Prunus africana
Cedrelopsis grevei
Effectively
Ravensara aromatica
Cinnamomum zeylanicum
Strychnos myrtoides
Erythroxylum pervillei
Potentially
Hernandia voyroni
Cryptocarya sp
Harvesting P. africana in Madagascar
Local community participation
(INDENA, Italy)
(Germany)
Processed
Raw
Graph showing the annual quantity of P. africana
exported for the period 1972-2000
200
150
100
50
0
19
72
19
74
19
76
19
78
19
80
19
82
19
84
19
86
19
88
19
90
19
92
19
94
19
96
19
98
20
00
Quantity (tons)
250
Year
Sustainable exploitation
In situ forest conservation
Ex situ forest boundary cultivation
Plantation
Cedrelopsis grevei
Exploitation of Cedrelopsis grevei
Leaves and stem barks are used
to extract essential oils
for local uses and export
Stem barks are used as an ingredient in phytomedicines
Estimated 10 tons harvested per year
Ravensara aromatica
Stem barks are used
to extract essential oils
For local uses and export
Estimated 50 tons harvested each year
Strychnos myrtoides
Stem bark contains alkaloids
that reverse chloroquine resistance
Possibility of important harvesting in the near future
Erythroxylum pervillei
Roots and stem bark contain alkaloids
that reverse MDR resistance
Possibility of important harvesting for clinical trials
Cinnamomum zeylanicum
Over-harvesting of stem barks
Hernandia voyroni
Stem barks are used
to extract essential oils
Trunk is extensively used
to make coffins, canoe
Alkaloids from stem barks
may be used as chemosensitiers
in malaria
Hazomanga
2 species: Cryptocaria sp (Lauraceae)
Stem barks: potentially used to extract essential oils
Produits Naturels Biologiques
(PRONABIO)
Trade Association
GC and GC/MS equipment
TLC scanner equipment
Thank you for your attention
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