Dr. Gabriel Aguirre-Álvarez has been a full-time professor at the Autonomous University of Hidalgo State (UAEH), Mexico, since 1996. He is an agro-industrial engineer for the UAEH. In 2003, he received MSc in Leather Technology from the University of Northampton, UK. Then, in 2009, Dr. Aguirre obtained his PhD in Food Sciences at the University of Nottingham, UK. His research is focused on the transformation of agri-food waste from agro-industrial processes. Some examples of this are as follows: The extraction and characterization of a wide range of biopolymers such as collagen, gelatin, hyaluronic acid, and lycopene for their application in the biomedical, pharmaceutical, cosmeceutical, and food industries. Furthermore, the preparation of films and coatings with antibacterial, antioxidant, water transport, and enhanced mechanical properties when prepared from natural wastes are also topics of interest.