本文研究了壳聚糖和明胶两种澄清剂对桂圆汁的澄清效果。研究发现，壳聚糖的澄清效果优于明胶，工艺参数壳聚糖添加量为200ppm，澄清时间为60min，澄清温度为45℃。经澄清后桂圆汁透光率达到88％，浊度仅为3．1NTU。%This paper studied the clarification effects of chitosan and gelatin on found that chitosan clarifying time 60 reached 88% and the was better than min, temperature gela 45℃ tin .The process parameters were chitosan After clarification, the transmittance turbidity was only 3.1NTU longan juice. It dosage 200 ppm, of longan juice
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