This work evaluated the quality of sorrel seeds as function of irradiation doses (0, 2.5, 5, 10, and 20kGy, respectively) so as
to determine dose level causing minimal undesirable changes to sorrel seed. Physicochemical properties (proximate, color,
peroxide value, free fatty acid value, saponification value and fatty acids), and functional properties (Water and oil holding
capacity, foaming capacity, emulsification and protein solubility) of the oil were determined using standard analytical
methods. The results showed that irradiation decreased crude protein and crude lipids significantly, while the ash content
and the crude fiber remained unaffected. Significant changes in peroxide values, saponification and free fatty acids were
observed after irradiation. Gas chromatography (GC) results revealed a clear trend toward an increase in the amount of
saturated fatty acids with increasing irradiation dose and a decrease in the amount of polyunsaturated fatty acids in the
triacylglycerol composition of the irradiated samples compared to the unirradiated sample. An inducement of trans-fatty
acids at 20kGy was also observed. The functional properties showed fluctuation with increasing dose of irradiation.
PAPER TITLE :PHYSICOCHEMICAL PROPERTIES AND FATTY ACID PROFILE OF GAMMA-IRRADIATED SORREL SEED (HIBISCUS SABDARIF
APPLIED TROPICAL AGRICULTURE | VOLUME 21 NUMBER 3 2016
Paper Details
- Author(s) : Sanni, T.A.1*, Alabi, O.O.1 and Ogundele, J.O.2
- Abstract:
