In this study, oil extraction from Niger seeds was evaluated with different microwave irradiation times (0–200 s) and pulsed electric fields (PEF) intensities (0–5 kV/cm) as pretreatments. Then, oil extraction was completed with a screw press at different rotation speeds (11–57 rpm).
What is the oil extraction efficiency of Niger seeds?
In different references, 37%–50% oil extraction efficiency for Niger seeds has been reported. The highest unsaturated fatty acids are linoleic and oleic acids, and the most predominant saturated fatty acids are palmitic and stearic acids.
Which fatty acids are found in extracted oil of Niger seeds?
The profile of fatty acids in extracted oil of Niger seeds both at microwave‐PEF conditions and standard sample has been shown in Table 4 and Figure 6. In both samples, linoleic acid was the most predominant fatty acid in the oil of Niger seeds.
What is niger seeds oil used for?
Niger seeds oil could be used as a replacement for olive and sesame seeds oils in pharmaceutical industries; moreover, it may be used in the production of soaps, paints, grease, and perfumes (Pradhan, Mishra, & Paikary, 1995 ). Furthermore, this oil contains considerable quantities of antioxidants (Ramadan & Moersel, 2003 ).