The experiments indicated that it was possible that the reductant of NBT in the freeze thaw cycle was superoxide anion free radical.
实验还表明还原NBT的还原剂很可能是超氧阴离子自由基。
What is more, these two fractions also had good scavenging effects on the superoxide anion free radical, and the scavenging effects were stronger than that of vitamin c.
另外，这两个馏分对O - 2。自由基体系也有较好的清除作用，且清除作用略强于维生素c。
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