Abstract
This research aimed to authenticate the geographical origin of imported fresh apples using isotopic techniques. The results show that the correlation between δ
2
H and δ
18
O 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.
Highlights
Authentication of the geographical origin of the apple using isotopic techniques.
δ
2
H and δ
18
O in extracted water from the US and Australian fresh apples imported to Vietnam were analyzed.
Intersection of apple water line with global meteoric water line reflects δ
2
H, δ
18
O values of the apple’s source water.