Biodiesel, the methyl ester of vegetable oil is a renewable, low environmental impact and potential as a green alternative fuel for diesel engine. High oil prices and growing concerns over climate change are driving investment and innovation in the biofuels sector as countries and industry increasingly look towards renewable bioenergy to replace fossil fuels. This study examines fuel properties...

The use of volatile fatty acids (VFAs) for microbial lipid accumulation was investigated in flask cultures of Cryptococcus albidus. The optimum culture temperature and pH were 25°C and pH 6.0, respectively, and the highest lipid content (27.8%) was obtained with ammonia chloride as a nitrogen source. The lipid yield coefficient on VFAs was 0.167 g/g of C. albidus with a VFAs (acetic, propionic,...

Using calcium oxide-based catalyst, optimization of two-stage trans-esterification processes at a fixed catalyst (1.0 wt. %) and molar ratio (1:6) was achieved. Processes were tested on Jatropha, Sweet Almond Sesame seed oils to produce compare biodiesel yields. An solution speed (629.630 rpm), temperature (26.661 oC), time (60 min) resulted in an 83.304% for refined jatropha (RJB) production, ...

The chemical composition of essential oil and volatile obtained from the roots of Jatropha ribifolia (Pohl) Baill was performed in this work. The Clevenger extractor was utilized in hydrodistillation of oil and chemical composition determined by gas chromatography coupled with mass spectrometry detector (GC-MS). The identification of compounds was confirmed by retention index (Kovats index) obt...

While energy production is highly dependent on fossil fuels, which consider the main source of global warming, biofuels would play a significant impact in diminishing such warming. In this paper, biooils were extracted from inedible seeds (Jatropha and Castor) using different continuous devices (solvents, screw presses, hydraulic press-machines), aiming to achieve highest oil’s yield improved e...

BACKGROUND Recently, Jatropha curcas L. has attracted worldwide attention for its potential as a source of biodiesel. However, most DNA markers have demonstrated high levels of genetic similarity among and within jatropha populations around the globe. Despite promising features of copia-type retrotransposons as ideal genetic tools for gene tagging, mutagenesis, and marker-assisted selection, th...

The present study investigated the potential of Jatropha curcas L. seed oil and lye its ash for soapmaking. Oil was extracted from seeds using Soxhlet extractor n-hexane. Lye solution obtained by boilingash with distilled water. physicochemical properties (saponification value, Iodine acid valueand peroxide value) (and blend palm oil) were found to be consistent reported values inliterature. co...