Solvent free hydroxylation of the methyl esters of Blighia unijugata seed oil in the presence of cetyltrimethylammonium permanganate

Extraction of oil from the seed of Blighia unijugata gave a yield of 50.82 ± 1.20% using hexane in a soxhlet extractor. The iodine and saponification values were 67.60 ± 0.80 g iodine/100 g and 239.20 ± 1.00 mg KOH/g respectively with C18:1 being the dominant fatty acid. Unsaturated methyl esters of Blighia unijugata which had been previously subjected to urea adduct complexation was used to synthesize methyl 9, 10-dihydroxyoctadecanoate via hydroxylation in the presence of cetyltrimethylammonium permanganate (CTAP). The reaction was monitored and confirmed using FTIR and GC-MS. This study has revealed that oxidation reaction of mono unsaturated bonds using CTAP could be achieved under solvent free condition

Solvent free hydroxylation of the methyl esters of <it>Blighia unijugata </it>seed oil in the presence of cetyltrimethylammonium permanganate

Abstract Extraction of oil from the seed of Blighia unijugata gave a yield of 50.82 ± 1.20% using hexane in a soxhlet extractor. The iodine and saponification values were 67.60 ± 0.80 g iodine/100 g and 239.20 ± 1.00 mg KOH/g respectively with C18:1 being the dominant fatty acid. Unsaturated methyl esters of Blighia unijugata which had been previously subjected to urea adduct complexation was used to synthesize methyl 9, 10-dihydroxyoctadecanoate via hydroxylation in the presence of cetyltrimethylammonium permanganate (CTAP). The reaction was monitored and confirmed using FTIR and GC-MS. This study has revealed that oxidation reaction of mono unsaturated bonds using CTAP could be achieved under solvent free condition.</p

Mapping Algae of Sundarban Origin as Lipid Feedstock for Potential Biodiesel Application

Abstract Six Cyanobacterial and fifteen other algal taxa from Sundarban mangrove forest of South East Asia have been analyzed for total lipid estimation and fatty acid profiling to search for a suitable feedstock for algal biodiesel production. Total lipid content varied from 7 -23 % for the studied genera. GCMS analysis revealed that Palmitic (16:0) and Oleic (18:1) as major fatty acids from the taxa collected from freshwater, brackish water and marine habitat of Sundarban with variable salinity (0-23psu). A few microalgae from cyanophyceae like, Lyngbya majuscula, Phormidium valderianum, Synechocystis pevalekii and chlorophycean genera viz. Rhizoclonium riparium, Rhizoclonium africanum, Pithophora cleveana, Spirogyra orientalis and Cladophora crystallina, having suitable fatty acid composition were identified for biodiesel production. Fatty acid profile showed more diversification in unsaturated fatty acid in fresh water region, indicating more variable environment in upstream fresh water regions of Sundarban