Combined Effect of Salinity and LED Lights on the Yield and Quality of Purslane (Portulaca oleracea L.) Microgreens

The present work aims to explore the potential improve quality of purslane microgreens by combining water salinity and LED lighting during their cultivation. Purslane plants were grown in a growth chamber with light insulated compartments, under different sources on 16 h d−1 photoperiod—fluorescent lamps (FL) two treatments, including red blue (RB)) spectrum red, far (RB+IR) lights spectrum—while providing all them intensity 150 µmol m−2 s−1. Plants exposed adding 0 or 80 mM NaCl. Biomass, cation anions, total phenolics (TPC) flavonoids content (TFC), antioxidant capacity (TAC), chlorophylls (Chl) carotenoids (Car) fatty acids determined. results showed that yield was increased 21% both RB RB+FR compared FL non-salinity conditions. nitrate reduced 81% 91% when RB+FR, respectively, as light, 9.5% saline conditions lowest oxalate contents obtained combinations salinity. Cl Na leaves also Microgreens reached highest TPC, while TFC, Chl Car. Finally, acid not affected salinity, but these factors slightly influenced composition. It is concluded use production, since it improves product, reducing anti-nutritional compounds.