At present time,one of the main problems of food industry is their generation of large amounts of agro-industrial residues which,in most cases,lead to the ecosystem degradation.Recently,research has been developed to use these residuals materials in the extraction of bioactive substances such as sugars,pigments,nutritional fibers,and proteins.Chemical characterization of ago-industrial residues is primordial,since it permits to profile their potentiality for any biotechnological treatment.