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Lalithamba, H. S.
- Transesterification of Pumpkin Oil Using Nano Calcium Oxide Catalyst
Authors
1 Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumkur, Karnataka, IN
2 Department of Chemistry, Siddaganga Institute of Technology, Tumkur, Karnataka, IN
Source
International Journal of Innovative Research and Development, Vol 5, No 11Sp (2016), Pagination: 58-61Abstract
Due to the increase in population and economic growth of the nation, particularly in growing countries like India, has resulted in huge demand of energy sources. Due to reduction of non-renewable petroleum sources and recent hike in petroleum prices and lack of availability of petroleum products have generated interest in extraction of energy from renewable energy sources wherein the biodiesel plays an important role which is derived from plant origin for diesel engines. In this study crude Pumpkin seed oil was used as a feedstock for biodiesel production by Nano-CaO catalyzed methanolysis. The produced biodiesel was characterized by Fourier transform infrared spectroscopy (FTIR). The fuel properties of pumpkin biodiesel such as viscosity, density, flashpoint, ash content, carbon residue, pour point and calorific value were investigated according to ASTM standards. The biodiesel-diesel blends (B10, B20, B30, B40 and B50) were prepared and fuel properties (viscosity, density and flash point) also investigated.
Keywords
Pumpkin Biodiesel, Fuel Properties, Viscosity, Density, Flash Point.- Synthesis of Nα-Protected Diazomethylketone Using COMU and its Application in the Preparation of Bromomethylketones and Selenazoles:Study of Antibacterial and Antioxidant Activities
Authors
1 Department of Chemistry, Siddaganga Institute of Technology, Tumakuru, Karnataka, IN
Source
International Journal of Innovative Research and Development, Vol 5, No 11Sp (2016), Pagination: 129-135Abstract
An efficient protocol for the synthesis of N-protected diazomethylketone was developed using (1-cyano-2-ethoxy-2-oxoethylideneaminooxy)-dimethylamino-morpholinomethylene) methanaminium hexa-fluorophosphate (COMU) and N-nitrosourea (NNU) is developed. Conversion of carboxylic acids to diazomethylketones in an excellent yield was obtained under milder reaction conditions, through a simple workup. Further, the synthesized compounds were used for the preparation of bromomethylketones using 45% aqueous HBr and selenazoles. Prepared bromomethylketones were subjected for their antibacterial activity against Escherichia coli and Staphylococcus aureus strains and antioxidant studies. Antibacterial activity reveals that the compound Fmoc-Phe-CO-CH2-Br exhibited the zone of inhibition with respect to Streptomycin sulphate standard. For antioxidant assay, % RSC of Fmoc-Ala-CO-CH-N2, Fmoc-Phe-CO-CH2-Br and Fmoc-Phe-CO-CH-N2 exhibited free radical inhibition or scavenger activity with 2, 2-diphenyl-1-picrylhydrazyl (DPPH). The synthesized compounds were characterized by HRMS, 1H NMR, and 13C NMR studies.