经降解得到的羧甲基壳聚糖均具有一定的羟基自由基清除活性，且分子量越小，其抗氧化性能越强。
All degraded carboxymethyl chitosans show certain hydroxyl radical scavenging activity, but the antioxidant activity is stronger at lower molecular weight.
利用荧光光度分析法研究了黑色素对羟基自由基的清除活性。
The scavenging of melanin to hydroxyl free radicals was studied by fluorometry.
利用荧光光度分析法研究了黑色素对羟基自由基的清除活性。
The scavenging of melanin to hydroxyl free radicals was studied by fluorometry.
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