With regard to the amount of water, on the other hand, 1.0 g of rapeseed oil was hydrolyzed with 3.0 g of water. Thus, the weight ratio of water/rapeseed oil was 3.0/1.0 for Table 1 and Fig. 2. However, when its ratio decreased from 3.0/1.0 to 1.0/1.0, the yield of saturated fatty acids decreased from 97.7 mol% to 77.2 mol% due to the insufficient hydrolysis of glycerides and fatty acids under the same reaction condition. From these results, it was concluded that an appropriate hydrolysis/hydrogenation condition is 270 oc/5 MPa (H2) with 3.0 g of water and g of Pdlc for 1.0 g of rapeseed oil.