Proximal Composition and Nutritional Potential of Stored Microgreens: <em>Brassica oleracea, Brassica oleracea var. capitata, Beta vulgaris, Amaranthus</em>

Microgreens are important plants because of the nutritional, economic, environmental and social benefits. The present investigation had the objective of evaluating the proximal composition and nutritional potential of microgreens (Brassica oleracea, Brassica oleracea va. capitata, Beta vulgaris, Amaranthus) as a function of days of storage. An A*B design was used where factor A was (Types of microgreens) and Factor B was (days of storage). This study analyzed the proximate composition, pigment levels and antioxidant capacity of selected microgreens (broccoli, cabbage, beetroot and red amaranth) during a ten-day storage pe-riod. The results indicated high moisture content of up to 95.65% in cabbage, there were significant decreases in protein content with values of 4.79% in cabbage and 2.90% in broccoli, as well as in fat, which ranged from 0.69% in broccoli to 0.55% on day 10. Re-garding pigments, chlorophyll showed a decrease from 2.50 mg/g to 2.00 mg/g in broccoli, and ß-carotene was reduced from 0.77 µg/g to 0.82 µg/g. However, microgreens retained significant antioxidant capacity, with values up to 547 mg EAA/g in beet. Furthermore, the mineral analysis highlighted high levels of calcium and potassium in the broccoli micro-green with values of 880 mg/kg and 4100 mg/kg, as well as a low presence of heavy met-als, supporting its consumption as a nutritional source. These results show the need to consider storage time when evaluating the nutritional quality of microgreens.