Cited by 91Algal biology and biofuel productionAquaculture Nutrition and GrowthSeaweed-derived Bioactive Compounds

Effects of different photoperiod and trophic conditions on biomass, protein and lipid production by the marine alga Nannochloropsis gaditana at optimal concentration of desalination concentrate

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Matos, Ângelo Paggi, Cavanholi, Monnik Gandin, Moecke, Elisa Helena Siegel, Sant'Anna, Ernani Sebastião·2017·Bioresource Technology

Abstract

This study investigated the cultivation of the marine alga Nannochloropsis gaditana in a medium based on desalination concentrate (DC) with an optimal concentration of 75% DC, under three trophic conditions and four photoperiod schedules. N. gaditana produced a peak biomass concentration (1.25gL-1) under mixotrophic culture condition and a photoperiod of 16L:08D. N. gaditana cells compensate to different light-dark regimes producing different amounts of protein (17.9-44.8%). The intracellular lipid content in N. gaditana cells increased both under autotrophic conditions with a 16L:08D cycle (16.7%), and under mixotrophic conditions with a 08L:16D cycle (15.7%). In heterotrophic culture, N. gaditana cells were rich in polyunsaturated fatty acids (46.0%). This study demonstrates an alternative approach to enhancing intracellular lipid content of the marine alga N. gaditana by modifying the photoperiod, trophic conditions and stress-salinity-conductivity with the use of a DC-based medium.

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Authors
Matos, Â. P., Cavanholi, M. G., Moecke, E. H. S., & Sant'Anna, E. S.
Affiliations
Universidade Federal de Santa Catarina (BR)
Corresponding author
Matos, Ângelo Paggi
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2017-01
Volume
224
Pages
490-497
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2548498991
Cited by
91
References
37
Citations by year
2026: 6 · 2025: 16 · 2024: 14 · 2023: 12 · 2022: 10 · 2021: 7 · 2020: 10 · 2019: 8 · 2018: 8
FWCI
1.45
Type
journal article
Language
en
Open access
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Fundação de Amparo à Pesquisa e Extensão Universitária (213/1999)
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
Nannochloropsis gaditana, photoperiod, trophic state, desalination concentrate, microalgae cultivation, biomass production, protein content, intracellular lipid content, polyunsaturated fatty acids, mixotrophic cultivation, heterotrophic culture, autotrophic culture, salt stress, light-dark cycle
MeSH terms
Light, Lipids, Proteins, Photoperiod, Biomass, Autotrophic Processes, Heterotrophic Processes, Carbon Cycle, Stramenopiles

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