Abstract
•Recent (2013–2020) analytical tools for geographical origin traceability of oils were reviewed.•Chemometrics were widely used in the tracing authentication of edible oils.•PLS-DA and LDA provide better results than the traditional chemometrics in oil authentication.•Olive oil and extra virgin olive oil are more authenticated oils.•This work will be valuable to the deep research about oils geographical authentication.
The global market for imported, high-quality priced foods has grown dramatically in the last decade, as consumers become more conscious of food originating from around the world. Many countries require the origin label of food to protect consumers need about true characteristics and origin. Regulatory authorities are looking for an extended and updated list of the analytical techniques for verification of authentic oils and to support law implementation. This review aims to introduce the efforts made using various analytical tools in combination with the multivariate analysis for the verification of the geographical origin of oils. The popular analytical tools have been discussed, and scientometric assessment that underlines research trends in geographical authentication and preferred journals used for dissemination has been indicated. Overall, we believe this article will be a good guideline for food industries and food quality control authority to assist in the selection of appropriate methods to authenticate oils.