The results showed that after heating sweet corn for 10 minutes, 25 minutes and 50 minutes at 115  degree, its anti free radical activity increased by 22%, 44% and 53% respectively. Therefore, the longer the heating time, the better the anti-aging effect of corn.
Compared with sweet corn, the increase of anti free radical activity of waxy corn after heating for the same time is very small cannot weaken the above conclusion.