Production and Characterization of Biodiesel Using Nonedible Castor Oil by Immobilized Lipase from Bacillus aerius

Table 1

Characteristic peaks of methyl ricinoleate taken as a standard.

S. number	Compound	FTIR peaks		NMR peaks
		Functional groups	Values in cm^−1	Functional groups	Values in ppm
1	Methyl ricinoleate	–C=O, OH	1743.39, 3481	–CH2–O–C–O, –C=O	2.32, 4.21
		–C=C–	1648	–C=C–	5.32
		–CH– stretching	2942	–CH2, –CH–	2.82, 1.29
2	Ricinoleic acid	–C=O, OH	1680, 3481	–C=O, OH	6.00, 12.05
		–C=C–	1616	–C=C–	5.42
		–CH–	2942	–CH2, –CH	2.52, 1.29