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8/8/2019 Paper on Jatropha Curcas From Mittelbach
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Jakarta, November 20-21, 2006
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Symposium on Biofueland Industrial Productsfrom Jatropha curcas and other Tropical Oil SeedPlants
Managua / Nicaragua23 - 27 February 1997
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Biomass Project within an Austrian
Development Help Project in Nicaragua1990 2000
Evaluation of Jatropha curcas L. asenergy plantCultivation of 1.000 ha
The biofuel part, however, suffers from thedevelopment of fossil fuel prices, whichmakes the production of diesel from physicnut uneconomical at the moment.
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Biodiesel from Oil of Jatropha Curcas L.
FAME from
Fuel Parameter Rape Seed Jatropha curcas
Cetane Number 49 - 62 51 59
CFPP [C] -19 - -8 -3
Iodine Number 104 - 120 95 - 107
Oxidation Stability [h] 7 3
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CFPP of B100 vs. Saturated Fatty Acids
-20
-15
-10
-5
0
5
10
15
0 5 10 15 20 25 30 35 40 45 50
Content of Saturated Fatty Acid Chains [wt.%]
C F P P [ C ]
typical range ofBioDiesel derived fromRapeseed Oil
typical range ofBioDiesel derived fromUsed Cooking Oil
typical range ofBioDiesel derived fromAnimal Fat
Source: BDI, 2005
Jatropha
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Toxic Principles of Jatropha Curcas L.
Phorbol esters:mainly in the oil; esters of tigliane diterpenes
tumor promotion, cell proliferation, activation of bloodplatelets, lymphocyte mitogenesis, inflammation
Curcin:mainly in the oil cake; Ribosome-inactivating protein
Non-toxic varieties found in Mexico
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Separation of 6 New Compounds
3 kg of seed oilSeparation on silica with SPE
Column chromatography on silica: 3.52 g
2 x column chromatography
HPLC separation C8 reversed-phase HPLC [Spherisorb]
Final purification with HPLC
Isolation of compounds: 1-7 mg each
d f f d
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Identification of 6 New Compounds
Methods:
MALDI-TOF MS
NMR techniques including1H-1H correlation (COSY)1D and 2D total correlation (TOCSY)
disortionless enhancement by polarization (DEPT)heteronuclear multiple quantum/bond coherence(HMQC/HMBC)gradient-enhanced nuclear Overhauser effect
W.Haas, H.Sterk, M.Mittelbach: J. Nat. Prod. 2002, 65, 1434-1440
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DHPB: Hirota et al. 1998
O HO
OH
HO
H H
O
O O
O
H1
23 4
5 6
7
8
9
10
1112
13
14 1516
17
18
19
20
1'
2' 3'
4'
5'6'
7'
8'
9'10'
11'
12'
13'14'
15'
16'
17'
18'
19'
20'
21'
22'
23'
24'
N l Cl f C l b M j
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Novel Class of Cyclobutan Mojety
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Detoxification Experiments with the Seed Oil
Oil Raffination
Degumming Deacidification
Bleaching Desodorization
W.Haas, M.Mittelbach, Industrial Crops Prod. 2000
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Detoxification During Raffination
Untreated degumming
deacidification
bleaching desodorization
Summary
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Summary
Oil form Jatropha curcas L. is an excellent source for biodieselproduction
Fuel properties are almost similar to those of rape seed oil ME
Non edible oil ideal for utilization in Asian countries
Oil must be produced in specified plants
Quick essay for toxic compounds is necessary
Detoxification of oil cake would improve the economy
Research on non-toxic varieties
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Third edition 2006
340 pages
Publisher: Martin Mittelbach
Contact:
mittelbach_biodiesel@gmx.at
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