粮油食品低场核磁共振检测技术研究进展

Research Process of Low-Field Nuclear Magnetic Resonance(LF-NMR) Detection Technology in Grain and Oil Food

因食品质量和安全问题,快速无损检测技术备受重视。低场核磁共振技术为粮油食品储藏加工研究提供了独特的研究视角,是一项非常有潜力的快速无损检测技术。首先对低场核磁技术及原理进行简介,然后从以下3个方面综述该技术在粮油食品中质量安全检测上的研究进展:基于低场核磁共振技术的粮油食品物化特性和感官指标的检测应用技术及国内国际标准测定方法;加工储藏过程中的质量变化监测研究;油脂掺假检测及食品内部成像专题等,最后指出了该技术有待研究解决的问题,并展望其未来在粮油食品检测方向上的应用前景。

Rapid non - destructive detection technology has attracted increasing attention due to the food quality and safety. Low -field nuclear magnetic resonance （LF -NMR） technology provides a unique research perspective for grain and oil food processing and storage, which is a very potential rapid non - destructive detection technique. The basic principle of LF - NMR technology is introduced and then the research progress of application of the technology in grain and oil quality and safety detection is reviewed in the following three aspects. Firstly, the standard methods and detection application technology at home and abroad for measuring physico - chemical properties and sensory indicators of grain and oil food by LF - NMR are summarized. Secondly, quality change monitoring during food processing and storage is described. Thirdly, two applications of oil adulteration detection and internal imaging are coneluded as topics. Finally, the problems of LF - NMR application technology to be solved are discussed. It is revealed that the application of LF - NMR technology will be popular in the grain and oil food detection in future.