Jatropha curcas Hope or Hype?
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Jatropha curcas Hope or Hype?
Wagner VendrameAssociate ProfessorTREC, Homestead
Heller, 1996
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What is Jatropha?
• Family Euphorbiaceae• Genus Jatropha: 170 species• Jatropha curcas L. • Physic Nut, Barbados Nut, Purging
Nut, Curcas Bean• Small tree or large shrub, 12-15ft
tall• Perennial
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Diversity in the
genus Jatropha
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E
B C
DA
Diversity in the genus Jatropha; botanical illustration of Jatropha curcas (A); J. grossidentata (B), J. excisa (C), J. clavuligera (D), and J. weddeliana. Photos and illustration by B. Dehgan.
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a. flowering branchb. barkc. leaf venationd. pistillate flowere. staminate flowerf. cross-section of immature fruitg. fruitsh. longitudinal section of fruitsi. seed(a - c and f- i from Aponte 1978; d and e from Dehgan 1984) (reprinted with Permission, Heller
1996)
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oil palm belt
J. curcas belt
J. curcas belt
Global indication of the most suitable climates for J. curcas (30° N; 35° S)
Claims and Facts on Jatropha curcas, (Jongschaap et al., 2007)
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Where can it be grown in FL?• Cultivated in the tropics as living
fence• Zones 9-11• Full sun• Drought tolerant• Marginal soils
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Jatropha curcas plantation in Mexico
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A. Bielenberg ram press for oil extraction from J. curcas seedsB. Soap production from J. curcas oil C. Perkins engine with generator converted to run on Jatropha oil Photos courtesy of R. K. Henning
A
B
C
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Jatropha curcas
Fruits Leaves Whole Plant
Husks
Erosion control Hedge plant
Shelter plant for other crops
Organic fertilizer Rodent repellentMedicinal uses
Seeds
Bark
Kernels
FuelMulchBiogas
Medicinal uses
Kernels
Shells
Oil (Biolipid)Triglycerides
Seed Cake or Expeller
CosmeticsSoap productionMedicinal usesBiopesticides
Animal feedOrganic fertilizerRodent repellent
MonoalkylestersBiodiesel + Glycerin
BIODIESEL
Uses for Jatropha curcas (modified from Heller 1996).
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Jatropha Crop
Biofuel Production
Use in Vehicles
Renewable Energy
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Acknowledgements
• CALS – UF• FDACS• Vecenergy, the energy division
of the Vecellio Group