Analysis of Heavy
metals and Physico-Chemical Properties of Sesamum indicum Seed Oil from Arid Zone
of Rajasthan
Ram Prakash and Arora Arun Kumar
Res. J. Chem. Environ; Vol. 26(8); 51-55;
doi: https://doi.org/10.25303/2608rjce051055; (2022)
Abstract
In the current study, we reported the concentration of heavy metals (ppm), physicochemical
properties and fatty acid composition of Sesamum indicum seed oil from arid zone
in Rajasthan. MP-AES is used for the analysis of heavy metals from the seed oil
of Sesamum indicum. The heavy metals are found in seed oil in following order: Zn
(7.92), Fe (1.14), Mn (0.74), Pb (0.07), Ni (0.05) and Cr (0.01) in ppm respectively.
Sesamum indicum oil was tested for its physicochemical properties. The proximate
analysis revealed 46.00% oil content.
HPLC was used to determine the fatty acid composition of the oil sample. Saturated,
monounsaturated and polyunsaturated fatty acids were recorded for 15.52%, 42.86%
and 41.32% of the total amount of fatty acids respectively. Linoleic acid (42.38%)
was the most abundant fatty acid followed by oleic acid (41.20%) and palmitic acid
(9.90%). Stearic acid (5.62%), linolenic acid (0.48%) and palmitoleic acid (0.12%)
were present in small amounts.
