Research shows that at 115 degrees Celsius, sweet corn is heated for 10 minutes, 25 minutes, and 50 minutes, respectively, and its anti-free radical activity is increased by 22%, 44%, and 53%, respectively. Therefore, the longer the heating time Corn, the better the anti-aging effect. If the following are true, the above conclusions cannot be weakened:. ['After heating for 65 minutes, the anti-free radical activity of corn decreased.', 'Compared with sweet corn, waxy corn has a smaller increase in anti-free radical activity after heating for the same time.', 'Sweet corn is a relatively rare type of corn and is not representative.', 'For corn, it is not that the higher the activity against free radicals, the better its anti-aging effect.']