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Bioresour Technol ; 101(18): 7180-3, 2010 Sep.
Article in English | MEDLINE | ID: mdl-20395131

ABSTRACT

The novel biodiesel production technology using supercritical reactive extraction from Jatropha curcas L. oil seeds in this study has a promising role to fill as a more cost-effective processing technology. Compared to traditional biodiesel production method, supercritical reactive extraction can successfully carry out the extraction of oil and subsequent esterification/transesterification process to fatty acid methyl esters (FAME) simultaneously in a relatively short total operating time (45-80 min). Particle size of the seeds (0.5-2.0 mm) and reaction temperature/pressure (200-300 degrees C) are two primary factors being investigated. With 300 degrees C reaction temperature, 240 MPa operating pressure, 10.0 ml/g methanol to solid ratio and 2.5 ml/g of n-hexane to seed ratio, optimum oil extraction efficiency and FAME yield can reach up to 105.3% v/v and 103.5% w/w, respectively which exceeded theoretical yield calculated based on n-hexane Soxhlet extraction of Jatropha oil seeds.


Subject(s)
Biofuels/analysis , Chromatography, Supercritical Fluid/methods , Jatropha/chemistry , Methanol/chemistry , Plant Extracts/chemistry , Plant Extracts/isolation & purification , Seeds/chemistry
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