Characterization and viscosity parameters of seed oils from wild plants
2003
Eromosele, C.O. | Paschal, N.H.
The physico-chemical properties of Spondias mombin seed oil and the viscosity-temperature profiles of six seed oils from other plants which grow in the wild: Balanites aegytiaca, Lophira lanceolata, Sterculia setigera, Khaya senegalensis, Ximenia americana and Sclereocarya birrea, were investigated. The oil content of S. mombin seed was significant at 31.5% (w/w). The oil appeared stable as deduced from its low peroxide and acid values of 6.0 mEq kg-1 and 1.68 mg KOH, respectively. The X. americana oil was denser than the other ones, with a value of 0.9625 g cm-3 at 30 degrees C. The kinematic viscosities of the oils and their temperature dependence in the range 30-70 degrees C suggested a potential industrial application of the oils as lubricating base stock. Specifically, the kinematic viscosities of the oils were in the range 59.8-938.2 cst at 30 degrees C with X. americana having the highest value. At 70 degrees C, the reduction in viscosities of the oils was marked: reduction by over 70% of their values at 30 degrees C for S. setigera, K. senegalensis, X. americana and S. birrea oils.
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