MODELING THE MICROBIAL INACTIVATION DURING VACUUM DRYING

摘要：

　　The formulation of dried starter and probiotic cultures is an important issue.During drying,thermal and dehydration stress is imposed on the cells,leading to an inactivation of a part of the cell population.To optimize processing it is therefore important to know how the inactivation during drying proceeds and what temperature profile leads to a minimum inactivation of the cells.The inactivation kinetics in a temperature and moisture range relevant to the drying process was determined and linked to the drying kinetics during vacuum drying.The predicted inactivation was compared to the measured inactivation during drying.The model shows a reasonable agreement with the experimental data for the probiotic test strain L.paracasei (F19),depending on the drying rate.

关键词： inactivation kinetics low temperature vacuum drying probiotics modeling drying-induced inactivation

作者: P.Foerst U.Kulozik

作者单位: Technische Universit(a)t München(TUM)Weihenstephaner Berg 1D-85356 Freising

会议类型: 国际会议

会议名称: The 18th International Drying Symposium Conference(第十八届国际干燥学术大会(IDS2012))

会议地点: 厦门

会议语种:英文

页码: 1-6

在线出版日期: 2012-01-11（万方平台首次上网日期，不代表论文的发表时间）