A preharvest finishing procedure for Lemna to produce high levels of zeaxanthin that is retained post-high-light exposure
Development of a productive, nutritious, and low-input food source is needed for humanity's expanding population on Earth and for long-duration crewed space missions. The exceptionally protein- and micronutrient-rich members of the aquatic plant family Lemnaceae are uniquely suited for both pur...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | Future Foods |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S266683352400220X |
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| author | Marina López-Pozo William W. Adams, III Maureen McNamara Barbara Demmig-Adams |
| author_facet | Marina López-Pozo William W. Adams, III Maureen McNamara Barbara Demmig-Adams |
| author_sort | Marina López-Pozo |
| collection | DOAJ |
| description | Development of a productive, nutritious, and low-input food source is needed for humanity's expanding population on Earth and for long-duration crewed space missions. The exceptionally protein- and micronutrient-rich members of the aquatic plant family Lemnaceae are uniquely suited for both purposes. We here introduce a protocol to accumulate large quantities of the carotenoid zeaxanthin that are retained post-high-light exposure. The function of the essential human micronutrients zeaxanthin, lutein, vitamin E (α-tocopherol), and pro-vitamin A (β-carotene) are briefly reviewed. Attention is given to the role of zeaxanthin in opposing oxidants (reactive oxygen species), the production of which is further enhanced by space radiation. We report a new preharvest finishing procedure – sudden transfer of Lemna plants grown in low light (200 µmol photons m-2 s-1) to high light (1000 µmol photons m-2 s-1) for six hours, which rapidly increased and stabilized zeaxanthin content. Unlike terrestrial crops, Lemna possessed a uniquely high protein content when grown in low light and did not experience any adverse effects of the abrupt five-fold increase in light intensity. These findings provide additional justification for Lemnaceae as food crops with applications on Earth as well as for future long-duration human space missions. |
| format | Article |
| id | doaj-art-baf34fb9e7b44259ad6802c845e63f2b |
| institution | Kabale University |
| issn | 2666-8335 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Future Foods |
| spelling | doaj-art-baf34fb9e7b44259ad6802c845e63f2b2024-12-18T08:53:59ZengElsevierFuture Foods2666-83352024-12-0110100517A preharvest finishing procedure for Lemna to produce high levels of zeaxanthin that is retained post-high-light exposureMarina López-Pozo0William W. Adams, III1Maureen McNamara2Barbara Demmig-Adams3Corresponding author.; Department of Ecology & Evolutionary Biology, University of Colorado, Boulder 80309-0334, CO, USADepartment of Ecology & Evolutionary Biology, University of Colorado, Boulder 80309-0334, CO, USADepartment of Ecology & Evolutionary Biology, University of Colorado, Boulder 80309-0334, CO, USADepartment of Ecology & Evolutionary Biology, University of Colorado, Boulder 80309-0334, CO, USADevelopment of a productive, nutritious, and low-input food source is needed for humanity's expanding population on Earth and for long-duration crewed space missions. The exceptionally protein- and micronutrient-rich members of the aquatic plant family Lemnaceae are uniquely suited for both purposes. We here introduce a protocol to accumulate large quantities of the carotenoid zeaxanthin that are retained post-high-light exposure. The function of the essential human micronutrients zeaxanthin, lutein, vitamin E (α-tocopherol), and pro-vitamin A (β-carotene) are briefly reviewed. Attention is given to the role of zeaxanthin in opposing oxidants (reactive oxygen species), the production of which is further enhanced by space radiation. We report a new preharvest finishing procedure – sudden transfer of Lemna plants grown in low light (200 µmol photons m-2 s-1) to high light (1000 µmol photons m-2 s-1) for six hours, which rapidly increased and stabilized zeaxanthin content. Unlike terrestrial crops, Lemna possessed a uniquely high protein content when grown in low light and did not experience any adverse effects of the abrupt five-fold increase in light intensity. These findings provide additional justification for Lemnaceae as food crops with applications on Earth as well as for future long-duration human space missions.http://www.sciencedirect.com/science/article/pii/S266683352400220XAntioxidantsDuckweedInflammationMicronutrientsProteinZeaxanthin |
| spellingShingle | Marina López-Pozo William W. Adams, III Maureen McNamara Barbara Demmig-Adams A preharvest finishing procedure for Lemna to produce high levels of zeaxanthin that is retained post-high-light exposure Future Foods Antioxidants Duckweed Inflammation Micronutrients Protein Zeaxanthin |
| title | A preharvest finishing procedure for Lemna to produce high levels of zeaxanthin that is retained post-high-light exposure |
| title_full | A preharvest finishing procedure for Lemna to produce high levels of zeaxanthin that is retained post-high-light exposure |
| title_fullStr | A preharvest finishing procedure for Lemna to produce high levels of zeaxanthin that is retained post-high-light exposure |
| title_full_unstemmed | A preharvest finishing procedure for Lemna to produce high levels of zeaxanthin that is retained post-high-light exposure |
| title_short | A preharvest finishing procedure for Lemna to produce high levels of zeaxanthin that is retained post-high-light exposure |
| title_sort | preharvest finishing procedure for lemna to produce high levels of zeaxanthin that is retained post high light exposure |
| topic | Antioxidants Duckweed Inflammation Micronutrients Protein Zeaxanthin |
| url | http://www.sciencedirect.com/science/article/pii/S266683352400220X |
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