摘要
物料内部水分含量、水分状态以及水分分布是物料干燥的重要特性,也是影响物料干燥过程的主要因素。干燥过程物料内部水分含量、水分状态及其分布的检测有助于真实反映干燥过程中物料内部的传质现象,并且为干燥工艺的优化和物料干燥数学模型的建立提供依据。综述了核磁共振技术在水分检测中的应用,并展望了核磁共振技术在果蔬干燥过程中物料内部水分无损检测中的意义和前景。
Moisture content, moisture status and moisture distribution of the materials is not only the important drying characteristics, but also be the main factors of influence during material drying. The testing of drying materials internal moisture content, study on distribution and mobility of water helps to truly reflect mass-transfer phenomenon of material interior during drying process, And for drying technology optimization of improvement and the establishing of materials drying mathematical model provides the basis. This paper reviews the NMR technology in the application of moisture detection, and the significance and foreground that NMR technology used in material internal moisture nondestructive testing during fruit and vegetable drying is prospected.
出处
《食品科技》
CAS
北大核心
2012年第6期294-298,共5页
Food Science and Technology
基金
国家自然科学基金项目(31060231)
南昌航空大学无损检测技术教育部重点实验室开放基金项目(ZD200629008)
关键词
核磁共振
水分
无损检测
nuclear magnetic resonance
moisture
nondestructive testing
