Application of stable isotope technique to authenticate the geographical origin of imported apple products

This research aimed to authenticate the geographical origin of imported fresh apples using isotopic techniques. The results show that the correlation between delta H-2 and delta O-18 of water from the US and Australian apples imported to Vietnam followed the respective linear evaporation line models. The apple water isotopic compositions of the two countries were distinct. All the apple water lines for each varietal sample from different locations had intersection points on the global meteoric water line for their respective locality. Those values were compared with the isotopic composition of the local meteoric water to authenticate the geographical origin of the apple.

Automated summary

This research used isotopic techniques to authenticate the geographical origin of imported fresh apples by comparing the isotopic compositions of apple water with that of local meteoric water.