Effect of SALATRIM-enriched biscuit on lipid metabolism of sprague-dawley rats

To investigate utilization of SALATRIM as a low caloric fat, Sprague-Dawley rats were fed on the diet containing powder of health oriented SALATRIM-enriched biscuit at the 35% dietary level. The caloric availability of SALATRIM was estimated to be 4.8 kcal/g on average. In comparison with the corn oil-enriched biscuit group, there was no detectable effect on the serum and liver lipid concentrations in the SALATRIM-enriched biscuit group. Analysis of the fatty acid analysis of liver phospholipids showed that the proportions of stearic, arachidonic and docosahexaenoic acids in the SALATRIM-enriched biscuit group were significantly higher than those in the corn oil-enriched biscuit group, while the proportion of linoleic acid was significantly low. As a result, the desaturation index of linoleic acid in the SALATRIM group tended to be higher than in the corn oil group. In perirenal and epididymal adipose tissues, the proportion of oleic acid in rats fed SALATRIM-enriched biscuit was significantly higher than in those fed corn oil-enriched biscuit, while the proportion of linoleic acid tended to be low. These results suggest that SALATRIM can be used as a low caloric fat as a biscuit material without influencing lipid metabolism, confirming availability of SALATRIM.