Susan Solati - Department of microbiology, Falavarjan branch, Islamic azad university, Isfahan, Iran
Keivan Behshti Maal - Department of microbiology, Falavarjan branch, Islamic azad university, Isfahan, Iran
Ahmadreza Massah - Department of microbiology, Falavarjan branch, Islamic azad university, Isfahan, Iran

Background and Aim:biodiesel is a renewable fuel that can be produced biological oils derived from plants, animals or microbes.Methods:One of the appropriate techniques to demonstrate the production of convertible oil to biodiesel is IR technique. Principle of this method is to establish a peak in a certain range of developed spectrum based on unit cm-1. Production of lipid in the strain of cyanobacteria separated from urban wastewater was analyzed using IR technique and a perkinElmer model device. The investigated range of device was adjusted from 400 cm-1 to 4000 cm-1.Results:Creating a peak in each particular region represents a specific operative group. Presence of known operative groups in biodiesel combination includes the presence of a peak at 1099 cm-1, 1164 cm-1, and 1236 cm-1 of C-O-C bond, which indicated ester factor, and long peak in 1747 cm-1 region represents carbonyl group and peaks between 2855 cm-1 and 2928 cm-1 indicate aliphatic compounds. All peaks in specified points prove the type of convertible oil to biodiesel.Conclusion:IR technique was used as a cheap, accurate and fast method to analyze the lipids produced by cyanobacteria strain in order to produce biodiesel.

Biodiesel,IR technique, renewable