Abstract:

The technologies for tracing the geographical origins of food products are very important for effectively assessingthe geographical origins and protecting specialty food products. An increasing amount of research has been dedicated toidentifying the geographic origins of food products in China and abroad. The geographical traceability of plant-derived foodproducts has been extended to wheat, potato, tomato, garlic and mushroom from wine, tea, coffee, olive oil, honey and fruitjuice. The principal analytical techniques used include mineral element fingerprinting, organic compound fingerprinting,near infrared spectroscopic fingerprinting and electronic nose. Many researchers in related fields have begun to focus onthe causes of the regional characteristics and the influences of variety, harvest year and food processing technologies on thetraceability indexes of plant-derived food products from different geographical origins. However, it is difficult to differentiatethe sub-regional characteristics of food products, and there is still a lack of research on the stability of traceability models.This review is expected to provide references for tracing, confirming and supervising the geographic origins of specialtyplant-derived products and geographic indication products.

Key words: traceability, mineral elements, organic compounds, near infrared spectroscopy (NIR), electronic nose