EFFECTS OF STABILIZED (RICE BRAN , DEFATTED RICE BRAN AND RICE BRAN OIL) ON SERUM LIPID PARAMETERS AND BLOOD GLUCOSE LEVELS IN RATS

Abstract

This study was performed to investigate the effect of feeding with stabilized (full-fat rice bran ( FFRB) , Defatted rice bran ( DFRB) and rice bran oil ( RBO ) ) on growth, serum lipid parameters and blood glucose levels of rats . Results showed that, ( DFRB ) contain protein content, ash, fiber and carbohydrates significantly higher than that of ( FFRB ) on contrast they contain significantly lower lipids. ( RBO) has a higher proportion of saturated fatty acids (SFA) especially palmitic acid (16:0), and monounsaturated fatty acids (MUFA) than corn oil. But, corn oil was relatively high in polyunsaturated fatty acids (PUFA) especially linoleic acid (18: 2) than (RBO). Furthermore, ( RBO) contained relatively higher concentration of compesterol, stigmasterol, b-sitoisterol, cycloartanol, cycloartenol 24-Methylenecy cloartanol and oryzanol compared to the corn oil. The highest gain in body weight was observed in rats fed on diets containing( RBO) followed by control and ( FFRB ), In addition, no significant difference with the organ weights among all of the tested groups. The serum total cholesterol level and triglyceride of rats that maintained on full-fat rice bran diet was significantly lower than those fed on different diet , while Lowest glucose was observed in rats fed on defatted rice bran. non-significant variations for HDL-cholesterol among the experimental diets as compared to control. It is apparent from the results that ALT (Alanine amino transferase) and AST (Aspartate amino transferase) activities were slightly reduced with full-fat rice bran, defatted rice bran and rice bran oil as compared to normal basal diet. Finally, it can be concluded that, usingstabilization ( FFRB ), ( DFRB) and ( RBO ) had the pronounced effects for lowering serum lipid cholesterol and blood glucose levels in experimental rats.