Effect of mixed light emitting diode spectrum on antioxidants content and antioxidant activity of red lettuce grown in a closed soilless system
Abstract Background Light spectra have been demonstrated to result in different levels of comfort or stress, which affect plant growth and the availability of health-promoting compounds in ways that sometimes contradict one another. To determine the optimal light conditions, it is necessary to weigh...
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| Format: | Article |
| Language: | English |
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BMC
2023-07-01
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| Series: | BMC Plant Biology |
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| Online Access: | https://doi.org/10.1186/s12870-023-04364-y |
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| author | Sopanat Sawatdee Teeraya Jarunglumlert Prasert Pavasant Yasuko Sakihama Adrian E. Flood Chattip Prommuak |
| author_facet | Sopanat Sawatdee Teeraya Jarunglumlert Prasert Pavasant Yasuko Sakihama Adrian E. Flood Chattip Prommuak |
| author_sort | Sopanat Sawatdee |
| collection | DOAJ |
| description | Abstract Background Light spectra have been demonstrated to result in different levels of comfort or stress, which affect plant growth and the availability of health-promoting compounds in ways that sometimes contradict one another. To determine the optimal light conditions, it is necessary to weigh the vegetable’s mass against the amount of nutrients it contains, as vegetables tend to grow poorly in environments where nutrient synthesis is optimal. This study investigates the effects of varying light conditions on the growth of red lettuce and its occurring nutrients in terms of productivities, which were determined by multiplying the total weight of the harvested vegetables by their nutrient content, particularly phenolics. Three different light-emitting diode (LED) spectral mixes, including blue, green, and red, which were all supplemented by white, denoted as BW, GW, and RW, respectively, as well as the standard white as the control, were equipped in grow tents with soilless cultivation systems for such purposes. Results Results demonstrated that the biomass and fiber content did not differ substantially across treatments. This could be due to the use of a modest amount of broad-spectrum white LEDs, which could help retain the lettuce’s core qualities. However, the concentrations of total phenolics and antioxidant capacity in lettuce grown with the BW treatment were the highest (1.3 and 1.4-fold higher than those obtained from the control, respectively), with chlorogenic acid accumulation (8.4 ± 1.5 mg g− 1 DW) being particularly notable. Meanwhile, the study observed a high glutathione reductase (GR) activity in the plant achieved from the RW treatment, which in this study was deemed the poorest treatment in terms of phenolics accumulation. Conclusion In this study, the BW treatment provided the most efficient mixed light spectrum to stimulate phenolics productivity in red lettuce without a significant detrimental effect on other key properties. |
| first_indexed | 2024-03-13T00:44:01Z |
| format | Article |
| id | doaj.art-dc3177f4f9a348e299024ec894898c3d |
| institution | Directory Open Access Journal |
| issn | 1471-2229 |
| language | English |
| last_indexed | 2024-03-13T00:44:01Z |
| publishDate | 2023-07-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Plant Biology |
| spelling | doaj.art-dc3177f4f9a348e299024ec894898c3d2023-07-09T11:10:13ZengBMCBMC Plant Biology1471-22292023-07-0123111710.1186/s12870-023-04364-yEffect of mixed light emitting diode spectrum on antioxidants content and antioxidant activity of red lettuce grown in a closed soilless systemSopanat Sawatdee0Teeraya Jarunglumlert1Prasert Pavasant2Yasuko Sakihama3Adrian E. Flood4Chattip Prommuak5School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and TechnologyFaculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok (Rayong Campus)Tree Moments Co. LtdGraduate School/Research Faculty of Agriculture, Hokkaido UniversitySchool of Energy Science and Engineering, Vidyasirimedhi Institute of Science and TechnologyEnergy Research Institute, Chulalongkorn UniversityAbstract Background Light spectra have been demonstrated to result in different levels of comfort or stress, which affect plant growth and the availability of health-promoting compounds in ways that sometimes contradict one another. To determine the optimal light conditions, it is necessary to weigh the vegetable’s mass against the amount of nutrients it contains, as vegetables tend to grow poorly in environments where nutrient synthesis is optimal. This study investigates the effects of varying light conditions on the growth of red lettuce and its occurring nutrients in terms of productivities, which were determined by multiplying the total weight of the harvested vegetables by their nutrient content, particularly phenolics. Three different light-emitting diode (LED) spectral mixes, including blue, green, and red, which were all supplemented by white, denoted as BW, GW, and RW, respectively, as well as the standard white as the control, were equipped in grow tents with soilless cultivation systems for such purposes. Results Results demonstrated that the biomass and fiber content did not differ substantially across treatments. This could be due to the use of a modest amount of broad-spectrum white LEDs, which could help retain the lettuce’s core qualities. However, the concentrations of total phenolics and antioxidant capacity in lettuce grown with the BW treatment were the highest (1.3 and 1.4-fold higher than those obtained from the control, respectively), with chlorogenic acid accumulation (8.4 ± 1.5 mg g− 1 DW) being particularly notable. Meanwhile, the study observed a high glutathione reductase (GR) activity in the plant achieved from the RW treatment, which in this study was deemed the poorest treatment in terms of phenolics accumulation. Conclusion In this study, the BW treatment provided the most efficient mixed light spectrum to stimulate phenolics productivity in red lettuce without a significant detrimental effect on other key properties.https://doi.org/10.1186/s12870-023-04364-yPhenolics productivityAntioxidant enzymesMolecular antioxidantsLight spectrumContinuous lightHydroponic cultivation |
| spellingShingle | Sopanat Sawatdee Teeraya Jarunglumlert Prasert Pavasant Yasuko Sakihama Adrian E. Flood Chattip Prommuak Effect of mixed light emitting diode spectrum on antioxidants content and antioxidant activity of red lettuce grown in a closed soilless system BMC Plant Biology Phenolics productivity Antioxidant enzymes Molecular antioxidants Light spectrum Continuous light Hydroponic cultivation |
| title | Effect of mixed light emitting diode spectrum on antioxidants content and antioxidant activity of red lettuce grown in a closed soilless system |
| title_full | Effect of mixed light emitting diode spectrum on antioxidants content and antioxidant activity of red lettuce grown in a closed soilless system |
| title_fullStr | Effect of mixed light emitting diode spectrum on antioxidants content and antioxidant activity of red lettuce grown in a closed soilless system |
| title_full_unstemmed | Effect of mixed light emitting diode spectrum on antioxidants content and antioxidant activity of red lettuce grown in a closed soilless system |
| title_short | Effect of mixed light emitting diode spectrum on antioxidants content and antioxidant activity of red lettuce grown in a closed soilless system |
| title_sort | effect of mixed light emitting diode spectrum on antioxidants content and antioxidant activity of red lettuce grown in a closed soilless system |
| topic | Phenolics productivity Antioxidant enzymes Molecular antioxidants Light spectrum Continuous light Hydroponic cultivation |
| url | https://doi.org/10.1186/s12870-023-04364-y |
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