Vitamin E (α-tocopherol) production by the marine microalgae Nannochloropsis oculata (Eustigmatophyceae) in nitrogen limitation
Abstract
Effects of nitrogen (N) sources and their concentration on the accumulation of α-tocopherol of Nannochloropsis oculata (Eustigmatophyceae) were examined. Sodium nitrate and ammonium chloride were used as inorganic nitrogen sources at the concentrations of 882 μmol l-1 and in half the strength of F/2 medium in N. Maximum content of α-tocopherol was 2325.8 ± 39 μg g-1 dry weight (DW) in NO3--N in the medium. N. oculata grew rapidly at 882 μmol l-1 concentration of NO3--N and NH4+-N in the medium and maximum cell numbers were obtained as 5.2 ± 0.3 x 10(7) cells ml-1 and 4.9 ± 0.1 x 10(7) cells ml-1, respectively. The research showed that decreasing N concentrations led to an increase in α-tocopherol accumulation, but reduced growth rate. Significant differences in the α-tocopherol content of N. oculata were found to be dependant on factors such as; N source, concentration and growth phase.
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D. tertiolecta and Tetraselmis suecica cultured under nitrogen-deprivation conditions increase the production of vitamin E.
“For example, microalgae, such as D. tertiolecta and Tetraselmis suecica, cultured under nitrogen-deprivation conditions increase the production of vitamin E (Carballo-Cardenas et al., 2003, Durmaz, 2007).”
From Microalgae Metabolites: A Rich Source for Food and Medicine (2019) · cites this paper as Durmaz, 2007
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References 26 · Cited by 160
- Authors
- Durmaz, Y.
- Affiliations
- Ege University (TR)
- Corresponding author
- Durmaz, Yaşar
- ORCID
- Durmaz, Yaşar
- Venue
- Aquaculture
- Publisher
- Elsevier BV
- Published
- 2007-11
- Volume
- 272
- Issue
- 1-4
- Pages
- 717-722
- ISSN
- 0044-8486 (ISSN-L)
- OpenAlex
- W1973632223
- Cited by
- 160
- References
- 26
- Citations by year
- 2026: 9 · 2025: 5 · 2024: 15 · 2023: 11 · 2022: 18 · 2021: 11 · 2020: 15 · 2019: 13 · 2018: 7 · 2017: 6 · 2016: 7 · 2015: 12 · 2014: 7 · 2013: 7 · 2012: 7
- FWCI
- 1.32
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Aquaculture (publishedVersion)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Seaweed-derived Bioactive Compounds
- Keywords
- alpha-tocopherol, vitamin E, Nannochloropsis oculata, marine microalgae, nitrogen limitation, inorganic nitrogen sources, sodium nitrate, ammonium chloride, microalgae growth rate, growth phase
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