Agrotecnio aims to become a reference in Europe addressing all the key elements of the food production chain in an integrated way focusing on target crops and animals of commercial importance, rather than model systems. This later aspect sets our centre apart from other centers which focus on fundamental science and/or model plant and animal systems. As a result we should be able to address fundamental and important questions in the crop/animal of interest and results from our research will be directly and immediately applicable to our target organism. [Més informació]
(MDPI, 2022) Chavez Angel, Emigdio; Puertas, Blanca; Kreuzer, Martin; Soliva-Fortuny, Robert; Ng, Ryan C.; Castro-Álvarez, Alejandro; Sotomayor Torres, Clivia M.
he substitution of extra virgin olive oil with other edible oils is the primary method forfraud in the olive-oil industry. Developing inexpensive analytical methods for confirming the qualityand authenticity of olive oils is a major strategy towards combatting food fraud. Current methodsused to detect such adulterations require complicated time- and resource-intensive preparation steps.In this work, a comparative study incorporating Raman and infrared spectroscopies, photolumines-cence, and thermal-conductivity measurements of different sets of adulterated olive oils is presented.The potential of each characterization technique to detect traces of adulteration in extra virgin oliveoils is evaluated. Concentrations of adulterant on the order of 5% can be detected in the Raman,infrared, and photoluminescence spectra. Small changes in thermal conductivity were also foundfor varying amounts of adulterants. While each of these techniques may individually be unableto identify impurity adulterants, the combination of these techniques together provides a holisticapproach to validate the purity and authenticity of olive oils.