Highly selective and sensitive analytical methods are necessary for food
analysis because diverse components can be found in this complex sample matrix,
sometimes occurring at only trace levels. Besides, simple and cost-effective methods
are needed to meet the requirements of governmental food standards organizations and
industries. Capillary Electrophoresis (CE) is a technique that meets these requirements
offering high-resolution separations and high-throughput. It only demands small
amounts of samples and chemicals for experiments and its versatility due to the
different separation modes possible and the combination with different detection
systems, has favored its application to determine diverse compounds in food analysis.
This chapter summarizes significant issues and challenges involved in the
determination of lipids, carbohydrates, and proteins, as well as recent advances in the
analysis of these food components by several CE modes and detection systems.