021 276 0496 info@sawine.co.za

Critical wine analyses for monitoring authenticity adulteration – Tools for the authentication of South African wines

by | May 3, 2024 | Oenology

Project title:
Critical wine analyses for monitoring authenticity adulteration – Tools for the authentication of South African wines

Project number:
FShip P04000340

Project leader:
Dr Francois van Jaarsveld

ARC Infruitec-Nietvoorbij

Start date:

Project description:
Due to the importance of wine exports for South Africa and potential international technical trade barriers, this project has been classified as a Flagship research project for South Africa Wine. Flagship projects address “big issues,” and a more significant portion of the research budget is allocated to them.  Other Flagship projects include climate change-related projects, disease-resistant grapevine breeding, water-efficiency projects, blockchain and the AgriGenesis venture building studio.

Authenticity and the methods for determining fraud are two of the most critical issues in food quality control and safety today. With wine being one of the most adulterated foods in the world, authenticity determination is even more necessary.

Sending wine samples for analysis to international laboratories is expensive. Local laboratories and instrumentation must be optimised to spare South African wineries this expense. Laboratories and instrumentation have been identified but require sample preparation methods and analytical protocol optimisation.

This project aims to allow for additional analytical capacity and investigate the effectiveness of Fourier transform infrared spectroscopy (FT-IR) as a cost-effective screening tool for the authentication of wines, including all variations caused by grape cultivar, geographic location, and vintage. FT-IR and other methods in the authenticity studies will be compared and validated for their feasibility for the local authentication of South African wines.

Data from both commercial and authentic wines will be evaluated to ascertain whether trade samples can complement authentic databases. Data will also be assessed to see whether models built for red wine samples can be used for white wine samples in authentication. Not only will analytical methods, data and databases be validated as originally proposed, but as part of this proposed study, the database will also be applied and validated against older databases.

More results...

Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors