老鹰茶喷雾干燥工艺试验研究

摘要

为深度开发应用老鹰茶资源,以四川老鹰茶为原料,研究了老鹰茶粉喷雾干燥工艺条件.在单因素试验的基础上,通过正交试验对喷雾干燥工艺进行优化.结果表明:老鹰茶喷雾干燥较优的工艺条件为进风温度190℃、料液浓度25%、进料流量20 mL/min和出风温度90℃.在此工艺下,喷雾干燥产品得率为29.12%,产品内含成分丰富.%In order to deeply develop and apply the Sichuan Hawk tea resource, the Litsea coreana Levl. var was used as raw material, and the spray drying conditions of preparing Hawk tea powder was disussed. Based on the single factor experiment, L9(34) orthogonal experiment was used to optimize the spray drying conditions, and the optimal spray drying processing conditions were determined as follows:inlet temperature of 190℃, materiel concentration of 25%, inlet flow rate of 20 mL/min and outlet temperature of 90℃. Under the conditions, the yield of product was 29.12%, and the biochemical component of product was rich.