Opportunities of determining olor oil in olive oil with different methods

Olive oil is an oil that attracts great attention and is preferred by consumers with its high nutritional values and antioxidant properties. On the other hand, it is a well-known fact that olive oil, which has many varieties, is introduced to the market, and it is adulterated by mixing it with different vegetable oils as well as its own variety.In our study, in order to observe whether adulteration in olive oil can be practically determined based on some known detection methods, sunflower oil, hazelnut oil and cottonseed oil, which are the most used vegetable oils in adulteration, were mixed in certain proportions (5%, 25%, 50%), deliberate adulteration was done and these adulterations were determined. It is aimed to observe whether it can be detected by refractive index and thermal conductivity analysis.As a result, it has been evaluated that the measurements and statistical analyzes on pure olive oil and adulteration are effective methods in determining the refractive index and thermal conductivity values in the light, but it will still be more effective to evaluate these values together with other determining methods rather than alone.