喷雾干燥与水浴模拟实验条件对应关系的研究

Study on the relationships between spray-drying conditions and water-bath simulation experiment

喷雾干燥是生产粉末的一种常用加工方式,但如果用来生产有活性的菌种粉末,依然需要进一步的研究。喷雾干燥使菌种致死的主要原因是高温脱水,本实验对喷雾干燥菌落成活数与水浴模拟加热条件的对应关系进行了研究,选择不同水浴加热温度和不同加热时间与最佳喷雾条件进行对比,结果表明,在喷雾条件为进口温度170℃,出口温度70℃时与水浴模拟实验60℃,10min的菌落成活数相当。

Spray drying is a common processing method in the production of powder. But it still need to further study active bacteria powder production. Spray-drying makes bacteria die is mainly due to high-temperature dehydration. By comparing different heating temperature and time with the best spraying conditions,the corresponding relationships between spray-drying conditions and water-bath simulation heating conditions were studied. Results showed that there was the same number of colonies survived between the spray-drying conditions of inlet temperature 170℃,outlet temperature 70℃ and that water bath simulation experiment conditions of 60℃,10min.