Recent advances in emerging imaging techniques for non-destructive detection of food quality and safety

Food quality and safety issues are increasingly attracting attention. Emerging imaging techniques have particular advantages in non-destructive detection of food quality and safety. This review looks at the trends in applying these emerging imaging techniques to analysis of food quality and safety, in particular, hyperspectral imaging, magnetic resonance imaging, soft X-ray imaging, ultrasound imaging, thermal imaging, fluorescence imaging, and odor imaging. On the basis of the observed trends, we also present the technical challenges and future outlook for these emerging imaging techniques.