The changes depended on the type of legume and processing conditions. These changes in the overall antioxidant properties of processed legumes could be attributed to the synergistic combinations or counteracting of several types of factors, including oxidative reaction, leaching of water-soluble antioxidant compositions, formation or breakdown of antioxidant compositions, and solid losses during processing. However, dry heat processes caused smaller losses in total phenolic content and antioxidant activity.