Effect of Different Salinity Levels on β-Carotene Production by Dunaliella Sp. Isolates from the Maharlu Lake, Iran
ABSTRACT Background and Objective: Microalgae are a group of algae that produce biochemical products consisting of a wide range of carbohydrates, lipids and proteins that are commercially valuable. Interest in microalgal cultivation is currently blossoming globally. Species of Dunaliella are found i...
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Golestan University of Medical Sciences
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ftdoajarticles:oai:doaj.org/article:5d65f5a461df44abba2d0936d51079ad 2023-05-15T13:52:02+02:00 Effect of Different Salinity Levels on β-Carotene Production by Dunaliella Sp. Isolates from the Maharlu Lake, Iran Keiwan Ebrahimi Mohammadi Faraz Arashrad 2016-09-01T00:00:00Z https://doaj.org/article/5d65f5a461df44abba2d0936d51079ad EN eng Golestan University of Medical Sciences http://mlj.goums.ac.ir/article-1-910-en.html https://doaj.org/toc/2538-4449 2538-4449 https://doaj.org/article/5d65f5a461df44abba2d0936d51079ad Medical Laboratory Journal, Vol 10, Iss 5, Pp 58-64 (2016) dunaliella microalgae maharlu lake β-carotene Medicine R article 2016 ftdoajarticles 2022-12-31T07:03:32Z ABSTRACT Background and Objective: Microalgae are a group of algae that produce biochemical products consisting of a wide range of carbohydrates, lipids and proteins that are commercially valuable. Interest in microalgal cultivation is currently blossoming globally. Species of Dunaliella are found in freshwater, euryhaline habitats of all continents, oceans including the Dead Sea and even the salt lakes of the Antarctic. This study investigates the effect of different salinity levels on β-carotene production by Dunaliella sp. Methods: Water samples from a hyper-saline lake (the Maharlu Lake in Shiraz) were cultured in modified Johnson media. The β-carotene content was measured after the samples were treated with different salinities (1, 2 and 3M NaCl). Results: The cell count and β-carotene content of Dunaliella sp. samples ranged between 0.46×106 to 2.12×106 cell.mL-1 and 0.15 to 9.98 pg.cell-1, respectively. At the end of the experiments, the mean maximum cell content (1.78×106 cell. mL-1) and the highest mean β-carotene content (7.41 pg. cell-1) were obtained at 2 and 3M NaCl concentrations, respectively. Conclusion: Salinity of the medium might affect the quantity and composition of carotenoids in Dunaliella sp. isolates. Alteration of the culture medium’s salinity to 3M NaCl significantly increases the accumulation of β-carotene and total carotenoids in Dunaliella sp. isolates. Keywords: Dunaliella, Microalgae, Maharlu Lake, β-carotene. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Saline Lake ENVELOPE(-111.528,-111.528,57.081,57.081) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
dunaliella microalgae maharlu lake β-carotene Medicine R |
spellingShingle |
dunaliella microalgae maharlu lake β-carotene Medicine R Keiwan Ebrahimi Mohammadi Faraz Arashrad Effect of Different Salinity Levels on β-Carotene Production by Dunaliella Sp. Isolates from the Maharlu Lake, Iran |
topic_facet |
dunaliella microalgae maharlu lake β-carotene Medicine R |
description |
ABSTRACT Background and Objective: Microalgae are a group of algae that produce biochemical products consisting of a wide range of carbohydrates, lipids and proteins that are commercially valuable. Interest in microalgal cultivation is currently blossoming globally. Species of Dunaliella are found in freshwater, euryhaline habitats of all continents, oceans including the Dead Sea and even the salt lakes of the Antarctic. This study investigates the effect of different salinity levels on β-carotene production by Dunaliella sp. Methods: Water samples from a hyper-saline lake (the Maharlu Lake in Shiraz) were cultured in modified Johnson media. The β-carotene content was measured after the samples were treated with different salinities (1, 2 and 3M NaCl). Results: The cell count and β-carotene content of Dunaliella sp. samples ranged between 0.46×106 to 2.12×106 cell.mL-1 and 0.15 to 9.98 pg.cell-1, respectively. At the end of the experiments, the mean maximum cell content (1.78×106 cell. mL-1) and the highest mean β-carotene content (7.41 pg. cell-1) were obtained at 2 and 3M NaCl concentrations, respectively. Conclusion: Salinity of the medium might affect the quantity and composition of carotenoids in Dunaliella sp. isolates. Alteration of the culture medium’s salinity to 3M NaCl significantly increases the accumulation of β-carotene and total carotenoids in Dunaliella sp. isolates. Keywords: Dunaliella, Microalgae, Maharlu Lake, β-carotene. |
format |
Article in Journal/Newspaper |
author |
Keiwan Ebrahimi Mohammadi Faraz Arashrad |
author_facet |
Keiwan Ebrahimi Mohammadi Faraz Arashrad |
author_sort |
Keiwan Ebrahimi Mohammadi |
title |
Effect of Different Salinity Levels on β-Carotene Production by Dunaliella Sp. Isolates from the Maharlu Lake, Iran |
title_short |
Effect of Different Salinity Levels on β-Carotene Production by Dunaliella Sp. Isolates from the Maharlu Lake, Iran |
title_full |
Effect of Different Salinity Levels on β-Carotene Production by Dunaliella Sp. Isolates from the Maharlu Lake, Iran |
title_fullStr |
Effect of Different Salinity Levels on β-Carotene Production by Dunaliella Sp. Isolates from the Maharlu Lake, Iran |
title_full_unstemmed |
Effect of Different Salinity Levels on β-Carotene Production by Dunaliella Sp. Isolates from the Maharlu Lake, Iran |
title_sort |
effect of different salinity levels on β-carotene production by dunaliella sp. isolates from the maharlu lake, iran |
publisher |
Golestan University of Medical Sciences |
publishDate |
2016 |
url |
https://doaj.org/article/5d65f5a461df44abba2d0936d51079ad |
long_lat |
ENVELOPE(-111.528,-111.528,57.081,57.081) |
geographic |
Antarctic The Antarctic Saline Lake |
geographic_facet |
Antarctic The Antarctic Saline Lake |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Medical Laboratory Journal, Vol 10, Iss 5, Pp 58-64 (2016) |
op_relation |
http://mlj.goums.ac.ir/article-1-910-en.html https://doaj.org/toc/2538-4449 2538-4449 https://doaj.org/article/5d65f5a461df44abba2d0936d51079ad |
_version_ |
1766256225633173504 |