改性后的魔芋多糖的抗氧化能力优于未改性的魔芋精粉。

The antioxidant ability of modified konjac glucomannan is better than that of the unmodified konjac powder.

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与未改性的PAM比较，发现改性的PAM能提高沉降速度，降低糖汁的色值和混浊度。

Compared with the unmodified PAM, it is found that the modified PAM can increase the settling rate, reduce the colour and turbidity of the sugar juice.

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比较实验表明，VCG比未改性的壳聚糖的絮凝效果更好，COD去除率更高，且投加量更低。

The compared test showed that VCG's flocculating was better than the unchanged chitosan, and COD's removal rate was higher with lower dosing quantity.

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