Research Article

Quality Evaluation of Oil from Seeds of Wild Plant Tylosema fassoglensis in Kenya

Table 1

Comparison of physicochemical properties of T.  fassoglensis oil with other seed oils.

ParameterTylosemaCottonSoy beanGroundnut Sunflower Canola

Acid value (mg KOH/g)2.49 ± 0.5611.50 ± 0.332.72 ± 0.174.40 ± 0.101.02 ± 760.071 ± 0.49
Iodine value (gm I/100 gm)94.06 ± 0.1494.7 ± 0.12119.21 ± 0.4095.30 ± 0.43119.92 ± 0.00116.10 ± 0.50
Peroxide value (meq/kg)6.34 ± 0.589.25 ± 0.4721.38 ± 1.611.97 ± 0.106.32 ± 127.36 ± 0.14
Refractive index (at 40°C)1.47 ± 0.331.46 ± 0.561.47 ± 0.101.46 ± 0.501.47 ± 121.46 ± 0.00
Saponification value (mg KOH/g)145.93 ± 0.69189 ± 0.38199.63 ± 1.81189.90 ± 0.10182.23 ± 0.37184.10 ± 0.61
Unsaponifiable matter (g/kg)5.87 ± 0.471.5 ± 0.111.76 ± 0.285.77 ± 0.251.5 ± 0.061.394 ± 0.3

Values are mean ± SD for triplicate determinations; source: FAO/WHO [9].