항산화활성이 높은 찰옥수수를 육종하고, 옥수수의 항산화활성에 가장 큰 효과를 나타내는 물질을 추적하고자, 찰옥수수 자식계통과 재래종의 항산화활성을 측정하고 페놀성화합물, tocopherols, carotenoids의 함량을 측정하였다. 전자공여능에 의한 항산화활성은 $15.5{sim}65.0%$였고, 페놀성화합물은 $102.3{sim}323.5;{mu}g/mL$였으며, tocopherols는 $15.6{sim}144.2;{mu}g/mL$였고, A450의 값은 $0.047{sim}0.206$였다. 4종의 검정찰옥수수는 항산화활성이 48.7%, 페놀성화합물은 $267.0;{mu}g/mL$, tocopherols은 $87.0;{mu}g/mL$로 상당히 높았다. 항산화활성과 페놀성화합물, tocopherols의 함량과는 고도의 상관관계가 있었으나 carotenoids와는 유의성이 없었다.
The antioxidative activity measured by electron donating ability was investigated for the breeding of the highest antioxidative waxy corn (Zea mays L.) and the research for the most effective antioxidant in waxy corn. The electron donating ability was $15.5{sim}65.0%$. The contents of phenolic compounds and tocopherols and the absorbance at 450 nm were $102.3{sim}323.5;{mu}g/mL$, $15.6{sim}144.2;{mu}g/mL$ and $0.047{sim}0.206$, respectively. The mean values of electron donating ability and contents of phenolic compounds and tocopherols of four black waxy corn were comparatively high, that is, 48.7%, $267.0;{mu}g/mL$ and $87.0;{mu}g/mL$, respectively. The electron donating ability was significantly correlated with the level of phenolic compounds and tocopherols but not with the content of carotenoids.
