Oil Quality Evaluation: The refined oil samples were analyzed for different quality attributes like free fatty acids, peroxide value, acid value, iodine value, saponification value
, color, odor, specific gravity, refractive index and fatty acid profile by following their respective procedures (AOAC, 2000; AOCS 1998).
Physico-chemical Characterization of the Extracted oils was obtained by using standard methods, such as color, odor, pH, density, specific gravity, acid value, Peroxide Value and Saponification value
. After that, the oil was processed for biodiesel production.
Properties MJO MPO MO Kinematic viscosity @ 40[degrees]C (cSt) 11.22 20.15 33.00 Viscosity index 225.36 219.00 185.21 Saponification value
(mg KOH [g.sup.-1]) 203.80 198.00 -- Total acid value (mg KOH [g.sup.-1]) 00.05 0.13 01.75 Flash point (0[degrees]C) 180.00 190.00 160.00 Pourpoint (0[degrees]C) -03.00 -02.00 -7.00 Iodine value (mg l [g.sup.-1]) 22.00 21.41 6.50 Table 2: Compositions of AA6061.
Similarly, in the case of chemical properties free fatty acids, saponification value
and peroxide value were reduced from 1.7 to 0.15%, 175 to 173 mg KOH/g oil and 3.4 to 1.2 mEq O2/Kg oil, respectively.
It has the same saponification value
as palm oil and provides the same moisturizing properties.
Characteristic Value Oil content (% of kernel dry weight) 46.0 Refractive index (20[degrees]) 1.4729 (*1) Iodine value (g iodine/100g) 125.3 (*2) Peroxide value 5.6 Saponification value
(mg KOH/g) 198.9 Acid value (mg KOH/g) 2.2 Unsaponifiable matter (%) 0.46 (*1), The value for 11 accessions varied between 1.4712 (for SE Sudan accession) and 1.4731 (for south Sudan accession); (*2), The value for 6 accessions varied between 107.9 (central Sudan accession) and 135.9 (western Sudan accession).
Refractive index, density, specific gravity, surface tension, acid value, free fatty acid value, saponification value
, iodine value, colour and peroxide value were carried out.
However, the proximate, fatty acid, amino acid, vitamin, sterol, and mineral compositions, which reflect nutritional value of seeds, and the physicochemical properties such as melting point, refractive index, iodine value, peroxide value, p-anisidine value, acid value, saponification value
, p-anisidine value, and oxidative stability, which determine the uses and applications of seed oils, have been not yet analyzed for L.
The saponification value
represents the number of milligrams of potassium hydroxide required to saponify 1gm of fat under the conditions specified.
Theoretical modeling of iodine value and saponification value
of biodiesel fuels from their fatty acid composition.
The acid value, hydroxyl value, and saponification value
of the [PE.sub.1] and [PE.sub.2] polyol were observed to be 2.35, 256, 254.84 and 11.64, 185, 234.5 mg KOH/g, respectively.
Properties of each sample like moisture content, free fatty acid, kinematic viscosity and saponification value