壳聚糖对苹果汁澄清的研究

Effect of Chitosan on Clarification of Apple Juice

通过利用壳聚糖在不同条件下对苹果汁进行处理,探索壳聚糖澄清苹果汁的最佳工艺条件。以优质苹果为原料,榨汁过滤后由单因素试验可知,壳聚糖添加量0.32 g/L、温度45℃、澄清时间50 min。由正交试验得出壳聚糖澄清苹果汁的最佳工艺条件是:壳聚糖用量0.32 g/L、温度50℃、澄清时间60 min,所得澄清苹果汁的透光率达到97.7%。

Apple juice was treated by chitosan under different conditions to probe the optimum technological condition for clarification of apple juice. The results from the test of single factor showed that the optimum adding chitosan amount, temperature and clarification time was 0. 32g/L, 45℃ and 50min respectively for clarification of apple juice. The results from the orthogonal test showed that the optimum technological condition for clarification of apple juice was adding 0.32 g/L chitosan at 50℃ for 60 min and its transmittance of the clarified apple juice was up to 97.7%.