Resumen
- he industrial use of citrus fruits has become an intensive activity in which there are companies dedicated to work for all the productivity chain (farmers, processors, distributors and traders) producing juice, pulp, concentrates and fresh fruits. Nevertheless, as production increases, the production of solid and liquid waste, especially water, soluble sugars, fiber, organic acids, amino acids, minerals, essential oils, flavonoids and vitamins creates a problem. Flavonoids, specifically, are widely distributed among vegetables, have showed a great variety of organic activities and have a great added value, given their possible industrial applications. As the interest in bioactive substances from a natural origin is increasing, it becomes imperative to develop extraction methods with fewer pollutants and with a maximum performance by those bioactive substances, with a shorter period of time and with a lower cost. This research work, precisely, introduces a description of flavonoids in citrus fruits remains, emphasizing the methods for extracting and characterizing them.