Qualitative study in vitro fruit and epicarpes Citrus Limetta Risso, Citrus Limon Burm and Citrus aurantiifolia (Christm.) Swingle Gharb of Morocco

Several epidemiological studies have provided good evidence of the inverse relationship associated with the consumption of citrus fruits and chronic diseases. After many years of research in the role of phytomicronutrients such as phenolic compounds, carotenoids and alkaloids, they are now widely studied and appreciated to use in the control of these degenerative diseases. These positive influences on human health have significantly increased production and consumption of citrus in recent decades. The lemon is a citrus fruit of the Rutaceae family which is rich in bioactive compounds. These could play a much more important protective role in the perspective of preventive nutrition. Indeed, these molecules have not revealed all their secrets until today. This is qualitative study based on a phytochemical screening and analytical technique for separating the thin layer chromatography (TLC ) extracts of fruits, épicarpes limetta Citrus , Citrus limon and Citrus aurantiifolia to highlight the existence of secondary metabolites that characterize them. The results of this study allowed us to reveal the existence of flavonoids, tannins, coumarins, alkaloids, carotenoids, quinones, sterols, terpenes, reducing compounds and iridoides. TLC tests confirm the presence of these secondary metabolites.