Preharvest Methyl Jasmonate Treatment Affects the Mineral Profile, Metabolites, and Antioxidant Capacity of Radish Microgreens Produced without Substrate

This study investigated the impact of Methyl Jasmonate (MeJA) application on the nutritional content and yield of five different colored radish microgreens. Microgreens were produced without substrate and subjected to 0.5 mM and 1.0 mM MeJA treatments on the 7th day, three days before harvest. The p...

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Bibliographic Details
Published in:Foods 2024-03, Vol.13 (5), p.789
Main Authors: Tilahun, Shimeles, Baek, Min Woo, An, Ki-Seok, Choi, Han Ryul, Lee, Jong Hwan, Tae, Su Ho, Park, Do Su, Hong, Jin Sung, Jeong, Cheon Soon
Format: Article
Language:English
Subjects:
Amino acid composition
Amino acids
Anthocyanin
Anthocyanins
antioxidant capacity
Antioxidants
Ascorbic acid
Chlorophyll
Cultivars
Cultivation
Defense mechanisms
Dry matter
Flavonoids
glucosinolates
Isoflavones
MeJA
Metabolites
Methyl jasmonate
microgreens
Nutritive value
Phenols
Phytochemicals
Plant metabolites
Radishes
Secondary metabolites
Seeds
Substrates
Vegetables
Water shortages
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Summary:This study investigated the impact of Methyl Jasmonate (MeJA) application on the nutritional content and yield of five different colored radish microgreens. Microgreens were produced without substrate and subjected to 0.5 mM and 1.0 mM MeJA treatments on the 7th day, three days before harvest. The parameters measured included yield, dry matter, minerals, amino acids, secondary metabolites such as chlorophylls (Chls), anthocyanins, flavonoids, phenolics, glucosinolates (GSLs), vitamin C, and antioxidant capacity. MeJA at 1.0 mM generally improved yield and dry weight across cultivars, and all microgreens exhibited rich mineral and amino acid composition, with the influence of cultivar being more significant than MeJA treatment. However, MeJA enhanced all cultivars' anthocyanins, GSLs, phenolics, flavonoids, and antioxidant activities. Generally, as the antioxidant capacity is the primary factor influencing the nutritional quality of microgreens, MeJA-treated microgreens, especially with selected superior cultivars such as 'Asia purple' and 'Koregon red', could offer a potential for cultivation of value-added, eco-friendly microgreens with substrate-free cultivation.
ISSN:2304-8158
2304-8158
DOI:10.3390/foods13050789