Quality food and its effect on health are becoming more important to customers. Together with food scandals of the recent past, this pushes the food industry to make their products more transparent.
The origin of raw materials is one key issue. This point touches topics such as the utilization of materials derived from genetically modified organisms and also the use of the correct materials stated on the list of ingredients.
An effective technique that can be used to investigate the genetic background of ingredients and the origin of materials in processed food are technologies based on Polymerase Chain Reaction (PCR), as these techniques are extremely sensitive.
A certain amount and quality of DNA are required to employ PCR-based technologies for the analysis of food. Some sample materials (e.g. plant samples, processed food) contain significant levels of inhibitors, which inhibit PCR-based downstream applications and so interfere with the analysis.