【摘要】 讨论了壳聚糖（中粘度）对于菠萝汁在透光度、颜色、可溶性固形物、总酸度、ＰＨ、总糖、维生素Ｃ等的影响．菠萝汁在２０℃～３０℃间，用壳聚糖溶液进行了１２０分钟的试验，实验显示壳聚糖溶液对透光度和颜色有显著影响．在ＰＨ值和总酸方面有影响．壳聚糖处理使总糖、可溶性固形物、维生素Ｃ等有所下降．更多还原

【Abstract】 The paper evaluated the effects of chitosan (medium viscosity) on transparence, color. soltlble solids, total acidity, PH, total sugar and Vc of pineapple juice. Pineapple juice was treated with chitosan solutions at 20-30℃ for 120 minutes. Chitosan treatmentgreatly affected transparence, color, PH values and total acidity, besides resulted in the reduction of total sugar, soluble solids and Vc.更多还原