A new version of this entry is available:
Loading...
Article
2024
Monodopsis subterranea is a source of α‐tocomonoenol, and its concentration, in contrast to α‐tocopherol, is not affected by nitrogen depletion
Monodopsis subterranea is a source of α‐tocomonoenol, and its concentration, in contrast to α‐tocopherol, is not affected by nitrogen depletion
Abstract (English)
α-Tomonoenols (αT1) are tocochromanols structurally related to tocopherols (T) and tocotrienols (T3), the bioactive members of the vitamin E family. However, limited evidence exists regarding the sources and biosynthesis of tocomonoenols. Nitrogen depletion increases the content of α-tocopherol (αT), the main vitamin E congener, in microalgae, but little is known regarding its effect on other tocochromanols, such as tocomonoenols and tocotrienols. We therefore quantified the concentrations of T, T1, and T3, in freeze-dried biomass from nitrogen-sufficient, and nitrogen-depleted Monodopsis subterranea (Eustigmatophyceae). The identities of isomers of αT1 were confirmed by LC–MS and GC–MS. αT was the predominant tocochromanol (82% of total tocochromanols). αT1 was present in higher quantities than the sum of all T3 (6% vs. 1% of total tocochromanols). 11′-αT1 was the main αT1 isomer. Nitrogen depletion increased αT, but not αT1 or T3 in M. subterranea. In conclusion, nitrogen depletion increased the content of αT, the biologically most active form of vitamin E, in M. subterranea without affecting αT1 and T3 and could potentially be used as a strategy to enhance its nutritional value but not to increase αT1 content, indicating that αT1 accumulation is independent of that of αT in microalgae.
File is subject to an embargo until
This is a correction to:
A correction to this entry is available:
This is a new version of:
Notes
Publication license
Publication series
Published in
Food science and nutrition, 12 (2024), 3, 1869–1879.
https://doi.org/10.1002/fsn3.3880.
ISSN: 2048-7177
Other version
Faculty
Institute
Examination date
Supervisor
Edition / version
Citation
DOI
ISSN
ISBN
Language
English
Publisher
Publisher place
Classification (DDC)
570 Biology
Original object
Free keywords
Standardized keywords (GND)
Sustainable Development Goals
BibTeX
@article{Montoya‐Arroyo2024,
url = {https://hohpublica.uni-hohenheim.de/handle/123456789/15892},
doi = {10.1002/fsn3.3880},
author = {Montoya‐Arroyo, Alexander and Muñoz‐González, Alejandra and Lehnert, Katja et al.},
title = {Monodopsis subterranea is a source of α-tocomonoenol, and its concentration, in contrast to α-tocopherol, is not affected by nitrogen depletion},
journal = {Food science and nutrition},
year = {2024},
volume = {12},
number = {3},
}