Isolation and molecular characterization of Thraustochytrium strain isolated from Antarctic Peninsula and its biotechnological potential in the production of fatty acids
Abstract
Thraustochytrids are unicellular protists belonging to the Labyrinthulomycetes class, which are characterized by the presence of a high lipid content that could replace conventional fatty acids. They show a wide geographic distribution, however their diversity in the Antarctic Region is rather scarce. The analysis based on the complete sequence of 18S rRNA gene showed that strain 34-2 belongs to the species Thraustochytrium kinnei, with 99% identity. The total lipid profile shows a wide range of saturated fatty acids with abundance of palmitic acid (16:0), showing a range of 16.1-19.7%. On the other hand, long-chain polyunsaturated fatty acids, mainly docosahexaenoic acid and eicosapentaenoic acid are present in a range of 24-48% and 6.1-9.3%, respectively. All factors analyzed in cells (biomass, carbon consumption and lipid content) changed with variations of culture temperature (10°C and 25°C). The growth in glucose at a temperature of 10°C presented the most favorable conditions to produce omega-3fatty acid. This research provides the identification and characterization of a Thraustochytrids strain, with a total lipid content that presents potential applications in the production of nutritional supplements and as well biofuels.
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BibTeX
@article{caamano2026isolation,
title = {{Isolation and molecular characterization of Thraustochytrium strain isolated from Antarctic Peninsula and its biotechnological potential in the production of fatty acids}},
author = {Esteban Caamaño and Lyliam Loperena and Ivonne Hinzpeter and Paulina Pradel and Felipe Gordillo and Gino Corsini and Mario Tello and Paris Lavín and Alex González},
journal = {Brazilian Journal of Microbiology},
year = {2026},
month = oct,
doi = {10.1016/j.bjm.2017.01.011},
url = {https://hal.science/hal-05790440v1},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Isolation and molecular characterization of Thraustochytrium strain isolated from Antarctic Peninsula and its biotechnological potential in the production of fatty acids
AU - Esteban Caamaño
AU - Lyliam Loperena
AU - Ivonne Hinzpeter
AU - Paulina Pradel
AU - Felipe Gordillo
AU - Gino Corsini
AU - Mario Tello
AU - Paris Lavín
AU - Alex González
PY - 2026
DA - 2026/10/09
JO - Brazilian Journal of Microbiology
DO - 10.1016/j.bjm.2017.01.011
UR - https://hal.science/hal-05790440v1
AB - Thraustochytrids are unicellular protists belonging to the Labyrinthulomycetes class, which are characterized by the presence of a high lipid content that could replace conventional fatty acids. They show a wide geographic distribution, however their diversity in the Antarctic Region is rather scarce. The analysis based on the complete sequence of 18S rRNA gene showed that strain 34-2 belongs to the species Thraustochytrium kinnei, with 99% identity. The total lipid profile shows a wide range of saturated fatty acids with abundance of palmitic acid (16:0), showing a range of 16.1-19.7%. On the other hand, long-chain polyunsaturated fatty acids, mainly docosahexaenoic acid and eicosapentaenoic acid are present in a range of 24-48% and 6.1-9.3%, respectively. All factors analyzed in cells (biomass, carbon consumption and lipid content) changed with variations of culture temperature (10°C and 25°C). The growth in glucose at a temperature of 10°C presented the most favorable conditions to produce omega-3fatty acid. This research provides the identification and characterization of a Thraustochytrids strain, with a total lipid content that presents potential applications in the production of nutritional supplements and as well biofuels.
SN - 1517-8382
SN - 1678-4405
ER -