Effect of domestic cooking on DF composition.
The influence of cooking on DF composition of processed potato products is given in Table 1. The SDF of both samples remained unchanged during domestic cooking. The major SDF constituents of potato have been identified as pectin and hemicellulose. Boiling and microwave-heating appeared to increase the IDF of instant mashed potato. In french fries, deep-fat frying significantly increased the IDF while baking caused only a minor additional change in IDF fraction.