Property, quality and safety assessment of agro-products are increasingly
gaining attention due to the potential human health concern as well as social
sustainable development. Emerging techniques and methods have particular advantages
in nondestructive evaluation of agro-products due to their simplicity and faster
response time, and reliable results, compared with the conventional visual inspection
and destructive methods. This chapter briefly elaborates the principles and system
components of some representative techniques, in particular, near infrared
spectroscopy, infrared spectroscopy, fluorescence spectroscopy, Raman spectroscopy,
laser induced breakdown spectroscopy, traditional machine vision, hyperspectral and
multispectral imaging, magnetic resonance imaging, X-ray imaging, thermal imaging,
light backscattering imaging, electrical nose and acoustics. The recent applications and
technical challenges for these representative techniques are also presented.
Keywords: Agro-products, Methods, Nondestructive Evaluation, Techniques.
