Thermal Properties of Expanded Amaranth Seed Oil

Abstract

This study presents the results of an analysis of amaranth oil. The aim of this research was to determine the physicochemical properties of the oil, particularly its thermal properties. The oil obtained from expanded amaranth seeds was tested. The obtained results proved the oil’s good resistance to oxidation. Three peaks present on the DSC melting curves of amaranth oil were associated with the presence of low-melting-point triacyloglicerols with polyunsaturated fatty acids (the first peak) and a medium-melting-point fraction rich in triacyloglicerols with monounsaturated and saturated fatty acids (the second and third peaks). The composition of fatty acids in the studied amaranth oil showed a high content of essential fatty acids.

Keywords

• amaranth
• amaranth oil
• thermal properties