可溶性甲壳质澄清刺梨汁的研究

Study of Soluble Chitosan on Settling of Cili Juice Clarification

研究了可溶性甲壳质对刺梨汁的快速澄清作用。测定果汁澄清前后的主要成分变化。结果表明:(1)经可溶性甲壳质剂处理的刺梨汁透光率可达95%以上,VC和SOD的损失均小于2%;(2)易使果汁产生二次浑浊和褐变的果胶、单宁类物质的减少率分别为100%和40%。经扩试和工厂生产试验证明,该法先进合理可行,优于酶法和明胶法。

The effects of Cilijuice （Rosa roxburghii Tratt） settled by chitosan were analyzed and the changes of main components of Cili juice before and after the fast settlement were determined. The results showed as following： （1） The transparency of settled juice is over 95%, and losses of VC and SOD are respectively below 2%. （2） Removal rates of pectin and tannin causing the secondary precipitation and browning are 100% and 40% respectively. The methed is proved to be better than enzyme reaction and gelatin settlement, through this advanced and practical test.