Preparation of margarine, fried in a pan or heated in an oven,showed 82% and 45% retention of vitD3, significantly different from100%.
A significant difference in retention between the two cookingprocedures was also found.
When using margarine as an ingredient,the retention of 64% for vitD3 in a cake baked for 60 min was significantly different from 100%.
Also, the retention of vitD3 in cakes was not significantly different from heating the margarine in a pan or in an oven