Evaluation of growth and nutritional value of Brassica microgreens grown under red,blue and green LEDs combinations |
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| Authors: | Khaled Y Kamal Mortaza Khodaeiaminjan Ahmed A El-Tantawy Diaa A Moneim Asmaa Abdel Salam Salwa M A I Ash-shormillesy Ahmed Attia Mohamed A S Ali Raúl Herranz Mohamed A El-Esawi Amr A Nassrallah Mohamed Fawzy Ramadan |
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| Institution: | 1. Agronomy Department, Faculty of Agriculture, Zagazig University, Zagazig, 44519 Egypt;2. Department of Molecular Biology, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czech Republic;3. Ornamental Horticulture Department, Faculty of Agriculture, Cairo University, Cairo, 12613 Egypt;4. Department of Plant production (Genetic Branch), Faculty of Environmental and Agricultural Sciences, Arish University, Arish, Egypt;5. Plant Pathology Department, Faculty of Agriculture, Zagazig University, Zagazig, 44519 Egypt;6. Department of Environmental Biology, Centro de Investigaciones Biológicas (CSIC), Ramiro de Maeztu 9, Madrid, 28040 Spain;7. Botany Department, Faculty of Science, Tanta University, Tanta, 31527 Egypt;8. Biochemistry Department, Faculty of Agriculture, Cairo University, Cairo, 12613 Egypt;9. Agricultural Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44519 Egypt |
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| Abstract: | Microgreens are rich functional crops with valuable nutritional elements that have health benefits when used as food supplements. Growth characterization, nutritional composition profile of 21 varieties representing five species of the Brassica genus as microgreens were assessed under light-emitting diodes (LEDs) conditions. Microgreens were grown under four different LEDs ratios (%); red:blue 80:20 and 20:80 (R80:B20 and R20:B80), or red:green:blue 70:10:20 and 20:10:70 (R70:G10:B20 and R20:G10:B70). Results indicated that supplemental lighting with green LEDs (R70:G10:B20) enhanced vegetative growth and morphology, while blue LEDs (R20:B80) increased the mineral and vitamin contents. Interestingly, by linking the nutritional content with the growth yield to define the optimal LEDs setup, we found that the best lighting to promote the microgreen growth was the green LEDs combination (R70:G10:B20). Remarkably, under the green LEDs combination (R70:G10:B20) conditions, the microgreens of Kohlrabi purple, Cabbage red, Broccoli, Kale Tucsan, Komatsuna red, Tatsoi and Cabbage green, which can benefit human health in conditions with limited food, had the highest growth and nutritional content. |
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