莲藕柠檬复合饮料工艺的研究

摘要

Objective] This study almed to optimize the processing technoIogy of compound beverage of Iotus root and Iemon. [Method] The Iotus root and Iemon were seIected as raw materials for preparing compound beverage. The Iotus root and Iemon were juiced respectiveIy. SubsequentIy, their juices were mixed together with a series of proportions so as to expIore a rational processing ratio of Iotus root and Iemon. [Result] The resuIts showed that the browning of Iotus root juice couId be effectiveIy prevented when the Iotus root juice was heated for 9 min and added with 0.8% citric acid. The optimized formuIa of compound beverage of Iotus root and Iemon was as foI ows: Iotus root juice to Iemon juice ratio, 5:1; addition amount of white granuIated sugar, 12%; addition amount of stabiIizer (CMC-Na), 0.15%. Af-ter moduIation, homogenization, steriIization and other processes, the compound beverage of Iotus root and Iemon was prepared. [Conclusion] The compound bever-age, prepared by optimized technoIogy and formuIa, was characterized by a IittIe of yeI ow coIor, fuI of Iotus root and Iemon fIavors, rich nutrients, smooth taste with sweet and sour, as weI as good stabiIity.%[目的]研究并优化莲藕柠檬复合饮料的加工工艺。[方法]选用莲藕、柠檬为原料研制莲藕柠檬复合饮料，将莲藕、柠檬分别榨汁，按一定的比例混合，并考察复合饮料合理的加工配比。[结果]试验得出，莲藕汁在加热9 min，添加0.8%柠檬酸的条件下可有效防止褐变。莲藕柠檬复合饮料的优化配方为：莲藕汁与柠檬汁配比5∶1，添加白砂糖12%，稳定剂为CMC-Na 0.15%。经调配、均质、灭菌等工艺制成复合饮料。[结论]优化的工艺配方下制得的产品色泽为藕色略带黄色，质地均匀，具有藕香和柠檬香气，营养丰富，口感清爽细腻，酸甜可口，具有良好的稳定性。