Antioxidant Capacity and Shelf Life of Radish Microgreens Affected by Growth Light and Cultivars
Microgreens are young, immature vegetables that contain higher concentrations of active compounds compared to mature vegetables and seeds. Radish microgreens are a good source of antioxidants, phenolic compounds, ascorbic acid, carotenoids, and anthocyanins. The production of microgreens is limited...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/9/1/76 |
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| author | Selma Mlinarić Antonija Piškor Anja Melnjak Alma Mikuška Martina Šrajer Gajdošik Lidija Begović |
| author_facet | Selma Mlinarić Antonija Piškor Anja Melnjak Alma Mikuška Martina Šrajer Gajdošik Lidija Begović |
| author_sort | Selma Mlinarić |
| collection | DOAJ |
| description | Microgreens are young, immature vegetables that contain higher concentrations of active compounds compared to mature vegetables and seeds. Radish microgreens are a good source of antioxidants, phenolic compounds, ascorbic acid, carotenoids, and anthocyanins. The production of microgreens is limited by their short shelf life due to higher dark respiration and accelerated senescence. The study was performed on three radish cultivars (<i>Raphanus sativus</i> L.): purple radish (cvP), red radish (cvR), and green radish (cvG). Radish microgreens were grown in chambers with controlled conditions (24 °C and a photoperiod of 16/8 h) under two types of artificial LED light (45 μmol m<sup>−2</sup>s<sup>−1</sup>): under white light (B:G:R) and a blue/red light combination (B:2R). The effect of the two types of light was examined on the 3rd, 7th, and 14th day after storage at a low temperature (+4 °C). The physiological status of the three cultivars of radish microgreens was examined by measuring the contents of total soluble phenolics, ascorbic acid, proteins, sugars, dry matter, anthocyanins, carotenoids, and chlorophyll as well as the total antioxidant activity. The results revealed that radish microgreens’ antioxidant capacity and phytochemical profile depend on the radish cultivar and on the type of LED light used for cultivation. It was shown that B:2R and red cultivar were most beneficial for the synthesis of most of the determined phytochemicals compared to B:G:R, or the purple and green cultivar, respectively. Storage at a low temperature in darkness slowed down most of the metabolic reactions during the first seven days, thus preserving most of the antioxidant activity. |
| first_indexed | 2024-03-09T12:29:18Z |
| format | Article |
| id | doaj.art-04fcd7645d424cf492134f82d189d87e |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-09T12:29:18Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-04fcd7645d424cf492134f82d189d87e2023-11-30T22:30:34ZengMDPI AGHorticulturae2311-75242023-01-01917610.3390/horticulturae9010076Antioxidant Capacity and Shelf Life of Radish Microgreens Affected by Growth Light and CultivarsSelma Mlinarić0Antonija Piškor1Anja Melnjak2Alma Mikuška3Martina Šrajer Gajdošik4Lidija Begović5Department of Biology, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, CroatiaDepartment of Biology, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, CroatiaDepartment of Biology, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, CroatiaDepartment of Biology, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, CroatiaDepartment of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, CroatiaDepartment of Biology, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000 Osijek, CroatiaMicrogreens are young, immature vegetables that contain higher concentrations of active compounds compared to mature vegetables and seeds. Radish microgreens are a good source of antioxidants, phenolic compounds, ascorbic acid, carotenoids, and anthocyanins. The production of microgreens is limited by their short shelf life due to higher dark respiration and accelerated senescence. The study was performed on three radish cultivars (<i>Raphanus sativus</i> L.): purple radish (cvP), red radish (cvR), and green radish (cvG). Radish microgreens were grown in chambers with controlled conditions (24 °C and a photoperiod of 16/8 h) under two types of artificial LED light (45 μmol m<sup>−2</sup>s<sup>−1</sup>): under white light (B:G:R) and a blue/red light combination (B:2R). The effect of the two types of light was examined on the 3rd, 7th, and 14th day after storage at a low temperature (+4 °C). The physiological status of the three cultivars of radish microgreens was examined by measuring the contents of total soluble phenolics, ascorbic acid, proteins, sugars, dry matter, anthocyanins, carotenoids, and chlorophyll as well as the total antioxidant activity. The results revealed that radish microgreens’ antioxidant capacity and phytochemical profile depend on the radish cultivar and on the type of LED light used for cultivation. It was shown that B:2R and red cultivar were most beneficial for the synthesis of most of the determined phytochemicals compared to B:G:R, or the purple and green cultivar, respectively. Storage at a low temperature in darkness slowed down most of the metabolic reactions during the first seven days, thus preserving most of the antioxidant activity.https://www.mdpi.com/2311-7524/9/1/76<i>Raphanus sativus</i> L.LED lightanthocyaninstotal soluble phenolicsascorbic acid |
| spellingShingle | Selma Mlinarić Antonija Piškor Anja Melnjak Alma Mikuška Martina Šrajer Gajdošik Lidija Begović Antioxidant Capacity and Shelf Life of Radish Microgreens Affected by Growth Light and Cultivars Horticulturae <i>Raphanus sativus</i> L. LED light anthocyanins total soluble phenolics ascorbic acid |
| title | Antioxidant Capacity and Shelf Life of Radish Microgreens Affected by Growth Light and Cultivars |
| title_full | Antioxidant Capacity and Shelf Life of Radish Microgreens Affected by Growth Light and Cultivars |
| title_fullStr | Antioxidant Capacity and Shelf Life of Radish Microgreens Affected by Growth Light and Cultivars |
| title_full_unstemmed | Antioxidant Capacity and Shelf Life of Radish Microgreens Affected by Growth Light and Cultivars |
| title_short | Antioxidant Capacity and Shelf Life of Radish Microgreens Affected by Growth Light and Cultivars |
| title_sort | antioxidant capacity and shelf life of radish microgreens affected by growth light and cultivars |
| topic | <i>Raphanus sativus</i> L. LED light anthocyanins total soluble phenolics ascorbic acid |
| url | https://www.mdpi.com/2311-7524/9/1/76 |
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