Study On The Enrichment Of α-Linolenic Acid From Descurainia Sophia Oil And Production Of Biodiesel

The diesel fuel consumption has been increasing steadily over the last few decades and looks set to continue into the future. But environmental concerns are driving industry to develop viable alternative fuels from renewable resources. An alternative diesel fuel must be technically feasible, economically competitive, environmentally acceptable, and readily available. Biodiesel is a nonpetroleum-based fuel that consists of alkyl esters derived from either the transesterification of triglycerides (TGs) or the esterification of free fatty acids (FFAs) with low molecular weight alcohols. The flow and combustion properties of biodiesel are similar to petroleum-based diesel and, thus, can be used either as a substitute for diesel fuel or more commonly in fuel blends. Biodesel is made from renewable resources, is biodegradable and nontoxic, and has a higher flash point than normal diesel. In addition, biodesel increases lubricity, which prolongs engine life and reduces the frequency of engine part replacement. Another significant advantage of biodesel is its low emission profile and its oxygen content of 10-11%. Biodiesel is called the environmentally friendly biofuel since it provides a means to recycle carbon dioxide. This paper was to produce fatty acid alkyl esters from the transesterification of Descurainia Sophia oil. Then the sample of fatty acid alkyl esters was operated by freezing crystallization, and the resulting sample had better properties than biodiesel of European Standard (EN 14214).ALA is an omega-3 fatty acid and has been reported to be useful in prevention and treatment of coronary artery disease, hypertension, and type 2 diabetes. ALA is the precursor fatty acid for the synthesis of eicosapentaenoic acid and docosahexaenoic acid which are associated with control of cardiovascular diseases. ALA reduces the risk of cardiovascular disease by lowering serum triglycerides and reducing the development of thrombosis and arteriosclerosis. There are richα-linolenic acid in the Descurainia Sophia oil (42.75%). This paper was to produce fatty acids from the saponification of Descurainia Sophia oil. Then the sample of fatty acid was worked by freezing crystallization and urea inclusion, the resulting sample ofα-linolenic acid was microencapsulated, which was beneficial to pharmacological experiments.