The influence of LED light on the development and antioxidant status of broccoli (Brassica oleracea var. italica) microgreens

Suzana Pavlović, Zdenka Girek, Jelena Damnjanović, Svetlana Roljević Nikolić, Dragana Stevanović and Milan Ugrinović
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Suzana Pavlović: Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Group for nutrition and metabolism, Belgrade, Serbia
Zdenka Girek: Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Group for nutrition and metabolism, Belgrade, Serbia
Jelena Damnjanović: Research and Development Institute Tamiš, Pančevo, Serbia
Svetlana Roljević Nikolić: Research and Development Institute Tamiš, Pančevo, Serbia
Dragana Stevanović: Research and Development Institute Tamiš, Pančevo, Serbia
Milan Ugrinović: Institute for Vegetable Crops Smederevska Palanka, Smederevska Palanka, Serbia

Horticultural Science, 2025, vol. 52, issue 3, 272-280

Abstract: The aim of the research was to examine the influence of different light treatments on the growth, phytochemicals and antioxidant potential of broccoli microgreens. Plants were grown in a growth chamber under LED (light-emitting diode) cold white, red and blue light and under fluorescent cold white light (control). The results showed that white and blue light treatments were the best for microgreen growth. Higher concentration of pigments was recorded in plants grown under LED light compared to those grown under FL (fluorescent lamp) light. The content of phenols and flavonoids had a positive and significant correlation with DPPH (2,2-diphenyl-1-picrylhydrazyl) antioxidative capacity (r = 0.66 and r = 0.90, respectively). The first two principal components account for 97.92 % of the total variation of all observed traits in this trial. Based on the PCA (principal component analysis) results, it can be concluded that the traits total phenols content, carotenoid content, chlorophyll a and b content make up the largest share of variability in the obtained results and that the red light conditions were the most unfavourable for the content of phytochemical compounds and antioxidant potential.

Keywords: broccoli; flavonoids; LED lights; phenols; photosynthetic pigments (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlhor:v:52:y:2025:i:3:id:44-2024-hortsci

DOI: 10.17221/44/2024-HORTSCI

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