以新鲜桑葚果浆为原料,麦芽糊精为壁材,采用离心喷雾干燥技术制备桑葚果粉。通过单因素试验、正交试验,以产品得粉率、含水量、Vc含量等为考察指标,研究了进风温度、出风温度、离心泵转速等离心喷雾干燥设备工艺参数对桑葚果粉产品的影响,得到适宜的工艺条件是:进风温度为200℃,出风温度为100℃,离心泵转速为260 r/min,流量泵流速为24 mL/min。该技术制备桑葚粉效率高,耗能小,且产品风味接近原浆。

Mulberry powder was produced by fresh mulberry and maltodextrin as wall material through Centrifugal Spay Drying technology.Through single factor experiment and orthogonal experiment,the influence of the Centrifugal Spay Drying processing parameters such as inlet air temperature,outlet air temperature,and rotation rate to the product quality were studied.The processes evaluated by the yield rate of powder,water content and vitamin C content.The optimum production conditions were: the inlet temperature was 200℃,the outlet temperature was 100℃,the rotation rate was 260 r/min,and the pump flow speed was 24 mL/min.The Centrifugal Spay Drying technology is a very useful technology which use less energy and highly efficient.It will help to broaden the comprehensive utilization of mulberry in the fields of food and medical industries and provide the guidance to the mulberry powder industrial production.