Guamara and Cocuixtle: Source of Proteases for the Transformation of Shrimp By-Products into Hydrolysates with Potential Application oleh Juan Miguel de Jesús Rodríguez-Jiménez, Efigenia Montalvo-González, Ulises Miguel López-García, Julio César Barros-Castillo, Juan Arturo Ragazzo-Sánchez, María de Lourdes García-Magaña