| Abstract: |
Subsequently, mixtures were made using oils with between 1 and 17 per cent acidity that were also past their “best before” date. (Representational Image) Researchers have designed a laser-based sensor that can detect counterfeit olive oil labelled as extra virgin or protected designation of origin. The tool, described in the journal Talanta, can distinguish between apparently similar oils that present notable differences in quality. This is possible thanks to the use of laser diodes, because the fluorescence emitted by adulterated oils is slightly different to that of pure extra virgin olive oils. |
