Application of ultraviolet a led as a disinfectant and morphological effects on indoor grown lettuce
Abstract Lettuce (Lactuca sativa ‘Parris Island’), commonly grown in vertical farms for sustainable production, has been studied for its response to UVA LED light, but its disinfectant potential remains unexplored. Hence, the proposal intends to cover two important aspects, the development of the pl...
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Nature Portfolio
2025-03-01
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| Online Access: | https://doi.org/10.1038/s41598-025-95610-w |
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| author | Ruth Elizabet Martinez-Escobedo Ernesto Olvera-Gonzalez Edgar Zacarias-Moreno Julissa Elayne Cosme-Castorena Aldonso Becerra Sanchez Nivia Escalante-Garcia |
| author_facet | Ruth Elizabet Martinez-Escobedo Ernesto Olvera-Gonzalez Edgar Zacarias-Moreno Julissa Elayne Cosme-Castorena Aldonso Becerra Sanchez Nivia Escalante-Garcia |
| author_sort | Ruth Elizabet Martinez-Escobedo |
| collection | DOAJ |
| description | Abstract Lettuce (Lactuca sativa ‘Parris Island’), commonly grown in vertical farms for sustainable production, has been studied for its response to UVA LED light, but its disinfectant potential remains unexplored. Hence, the proposal intends to cover two important aspects, the development of the plant and its disinfection during cultivation, to obtain plants that are ready for consumption. Three LED light treatments were configured: Mode 1 (WBUVA-P) and Mode 2 (WBUVA-C) used White + Blue + UVA (395 nm), with intermittent and continuous application, respectively. The Control applied White + Blue (WB), denoted as Mode 3. A specific evaluation of different parameters, such as disinfection and identification of bacteria, biomass, chlorophyll content (SPAD units), and leaf area (LA), was conducted in the experiment. The most effective results were obtained with Mode 1 (WBUVA-P), achieving a 99.90% disinfection rate and promoting organic matter accumulation, as shown by increased leaf area, fresh weight, and dry weight. In contrast, Mode 2 (WBUVA-C) reached a 99.00% disinfection rate but did not significantly impact organic matter compared to the Control. These results suggest that UVA-LED radiation can be a valuable tool for food production, enhancing disinfection and organic matter content. However, further studies are needed to explore different intermittent UVA-LED emission durations and test other wavelengths. |
| format | Article |
| id | doaj-art-6167a19205ff4c2c87927bbafdf82768 |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-6167a19205ff4c2c87927bbafdf827682025-08-20T02:10:16ZengNature PortfolioScientific Reports2045-23222025-03-0115111210.1038/s41598-025-95610-wApplication of ultraviolet a led as a disinfectant and morphological effects on indoor grown lettuceRuth Elizabet Martinez-Escobedo0Ernesto Olvera-Gonzalez1Edgar Zacarias-Moreno2Julissa Elayne Cosme-Castorena3Aldonso Becerra Sanchez4Nivia Escalante-Garcia5Artificial Illumination Laboratory (LIA), National Technological Institute of Mexico, Pabellón de Arteaga CampusArtificial Illumination Laboratory (LIA), National Technological Institute of Mexico, Pabellón de Arteaga CampusArtificial Illumination Laboratory (LIA), National Technological Institute of Mexico, Pabellón de Arteaga CampusDepartment of Economic and Administrative Sciences, National Technological Institute of Mexico, Pabellón de Arteaga CampusAcademic Unit of Electrical Engineering, Autonomous University of ZacatecasArtificial Illumination Laboratory (LIA), National Technological Institute of Mexico, Pabellón de Arteaga CampusAbstract Lettuce (Lactuca sativa ‘Parris Island’), commonly grown in vertical farms for sustainable production, has been studied for its response to UVA LED light, but its disinfectant potential remains unexplored. Hence, the proposal intends to cover two important aspects, the development of the plant and its disinfection during cultivation, to obtain plants that are ready for consumption. Three LED light treatments were configured: Mode 1 (WBUVA-P) and Mode 2 (WBUVA-C) used White + Blue + UVA (395 nm), with intermittent and continuous application, respectively. The Control applied White + Blue (WB), denoted as Mode 3. A specific evaluation of different parameters, such as disinfection and identification of bacteria, biomass, chlorophyll content (SPAD units), and leaf area (LA), was conducted in the experiment. The most effective results were obtained with Mode 1 (WBUVA-P), achieving a 99.90% disinfection rate and promoting organic matter accumulation, as shown by increased leaf area, fresh weight, and dry weight. In contrast, Mode 2 (WBUVA-C) reached a 99.00% disinfection rate but did not significantly impact organic matter compared to the Control. These results suggest that UVA-LED radiation can be a valuable tool for food production, enhancing disinfection and organic matter content. However, further studies are needed to explore different intermittent UVA-LED emission durations and test other wavelengths.https://doi.org/10.1038/s41598-025-95610-wIntermittent lightLEDPlantsPlant-microorganism disinfectionUV-A |
| spellingShingle | Ruth Elizabet Martinez-Escobedo Ernesto Olvera-Gonzalez Edgar Zacarias-Moreno Julissa Elayne Cosme-Castorena Aldonso Becerra Sanchez Nivia Escalante-Garcia Application of ultraviolet a led as a disinfectant and morphological effects on indoor grown lettuce Scientific Reports Intermittent light LED Plants Plant-microorganism disinfection UV-A |
| title | Application of ultraviolet a led as a disinfectant and morphological effects on indoor grown lettuce |
| title_full | Application of ultraviolet a led as a disinfectant and morphological effects on indoor grown lettuce |
| title_fullStr | Application of ultraviolet a led as a disinfectant and morphological effects on indoor grown lettuce |
| title_full_unstemmed | Application of ultraviolet a led as a disinfectant and morphological effects on indoor grown lettuce |
| title_short | Application of ultraviolet a led as a disinfectant and morphological effects on indoor grown lettuce |
| title_sort | application of ultraviolet a led as a disinfectant and morphological effects on indoor grown lettuce |
| topic | Intermittent light LED Plants Plant-microorganism disinfection UV-A |
| url | https://doi.org/10.1038/s41598-025-95610-w |
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