Comparison of Diatoms and Dinoflagellates from Different Habitats as Sources of PUFAs

Elina Peltomaa, Heidi Hällfors, Sami J. Taipale

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Recent studies have clearly shown the importance of omega-3 (-3) and omega-6 (-6) polyunsaturated fatty acids (PUFAs) for human and animal health. The long-chain eicosapentaenoic acid (EPA; 20:5-3) and docosahexaenoic acid (DHA; 22:6-3) are especially recognized for their nutritional value, and ability to alleviate many diseases in humans. So far, fish oil has been the main human source of EPA and DHA, but alternative sources are needed to satisfy the growing need for them. Therefore, we compared a fatty acid profile and content of 10 diatoms and seven dinoflagellates originating from marine, brackish and freshwater habitats. These two phytoplankton groups were chosen since they are excellent producers of EPA and DHA in aquatic food webs. Multivariate analysis revealed that, whereas the phytoplankton group (46%) explained most of the differences in the fatty acid profiles, habitat (31%) together with phytoplankton group (24%) explained differences in the fatty acid contents. In both diatoms and dinoflagellates, the total fatty acid concentrations and the -3 and -6 PUFAs were markedly higher in freshwater than in brackish or marine strains. Our results show that, even though the fatty acid profiles are genetically ordered, the fatty acid contents may vary greatly by habitat and affect the -3 and -6 availability in food webs.
Original languageEnglish
Article number233
JournalMarine Drugs
Volume17
Issue number4
Number of pages17
ISSN1660-3397
DOIs
Publication statusPublished - Apr 2019
MoE publication typeA1 Journal article-refereed

Fields of Science

  • microalgae
  • diatoms
  • dinoflagellates
  • marine
  • brackish
  • freshwater
  • polyunsaturated fatty acids
  • EPA
  • DHA
  • FATTY-ACID-COMPOSITION
  • ALPHA-LINOLENIC ACID
  • FRESH-WATER
  • MICROALGAE
  • GROWTH
  • TOXIN
  • EUTROPHICATION
  • QUALITY
  • PROFILE
  • FISH
  • 416 Food Science

Cite this

@article{2cbc65cd83bc4debb2a5a503b9190bcf,
title = "Comparison of Diatoms and Dinoflagellates from Different Habitats as Sources of PUFAs",
abstract = "Recent studies have clearly shown the importance of omega-3 (-3) and omega-6 (-6) polyunsaturated fatty acids (PUFAs) for human and animal health. The long-chain eicosapentaenoic acid (EPA; 20:5-3) and docosahexaenoic acid (DHA; 22:6-3) are especially recognized for their nutritional value, and ability to alleviate many diseases in humans. So far, fish oil has been the main human source of EPA and DHA, but alternative sources are needed to satisfy the growing need for them. Therefore, we compared a fatty acid profile and content of 10 diatoms and seven dinoflagellates originating from marine, brackish and freshwater habitats. These two phytoplankton groups were chosen since they are excellent producers of EPA and DHA in aquatic food webs. Multivariate analysis revealed that, whereas the phytoplankton group (46{\%}) explained most of the differences in the fatty acid profiles, habitat (31{\%}) together with phytoplankton group (24{\%}) explained differences in the fatty acid contents. In both diatoms and dinoflagellates, the total fatty acid concentrations and the -3 and -6 PUFAs were markedly higher in freshwater than in brackish or marine strains. Our results show that, even though the fatty acid profiles are genetically ordered, the fatty acid contents may vary greatly by habitat and affect the -3 and -6 availability in food webs.",
keywords = "microalgae, diatoms, dinoflagellates, marine, brackish, freshwater, polyunsaturated fatty acids, EPA, DHA, FATTY-ACID-COMPOSITION, ALPHA-LINOLENIC ACID, FRESH-WATER, MICROALGAE, GROWTH, TOXIN, EUTROPHICATION, QUALITY, PROFILE, FISH, 416 Food Science",
author = "Elina Peltomaa and Heidi H{\"a}llfors and Taipale, {Sami J.}",
year = "2019",
month = "4",
doi = "10.3390/md17040233",
language = "English",
volume = "17",
journal = "Marine Drugs",
issn = "1660-3397",
publisher = "MDPI",
number = "4",

}

Comparison of Diatoms and Dinoflagellates from Different Habitats as Sources of PUFAs. / Peltomaa, Elina; Hällfors, Heidi; Taipale, Sami J.

In: Marine Drugs, Vol. 17, No. 4, 233, 04.2019.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Comparison of Diatoms and Dinoflagellates from Different Habitats as Sources of PUFAs

AU - Peltomaa, Elina

AU - Hällfors, Heidi

AU - Taipale, Sami J.

PY - 2019/4

Y1 - 2019/4

N2 - Recent studies have clearly shown the importance of omega-3 (-3) and omega-6 (-6) polyunsaturated fatty acids (PUFAs) for human and animal health. The long-chain eicosapentaenoic acid (EPA; 20:5-3) and docosahexaenoic acid (DHA; 22:6-3) are especially recognized for their nutritional value, and ability to alleviate many diseases in humans. So far, fish oil has been the main human source of EPA and DHA, but alternative sources are needed to satisfy the growing need for them. Therefore, we compared a fatty acid profile and content of 10 diatoms and seven dinoflagellates originating from marine, brackish and freshwater habitats. These two phytoplankton groups were chosen since they are excellent producers of EPA and DHA in aquatic food webs. Multivariate analysis revealed that, whereas the phytoplankton group (46%) explained most of the differences in the fatty acid profiles, habitat (31%) together with phytoplankton group (24%) explained differences in the fatty acid contents. In both diatoms and dinoflagellates, the total fatty acid concentrations and the -3 and -6 PUFAs were markedly higher in freshwater than in brackish or marine strains. Our results show that, even though the fatty acid profiles are genetically ordered, the fatty acid contents may vary greatly by habitat and affect the -3 and -6 availability in food webs.

AB - Recent studies have clearly shown the importance of omega-3 (-3) and omega-6 (-6) polyunsaturated fatty acids (PUFAs) for human and animal health. The long-chain eicosapentaenoic acid (EPA; 20:5-3) and docosahexaenoic acid (DHA; 22:6-3) are especially recognized for their nutritional value, and ability to alleviate many diseases in humans. So far, fish oil has been the main human source of EPA and DHA, but alternative sources are needed to satisfy the growing need for them. Therefore, we compared a fatty acid profile and content of 10 diatoms and seven dinoflagellates originating from marine, brackish and freshwater habitats. These two phytoplankton groups were chosen since they are excellent producers of EPA and DHA in aquatic food webs. Multivariate analysis revealed that, whereas the phytoplankton group (46%) explained most of the differences in the fatty acid profiles, habitat (31%) together with phytoplankton group (24%) explained differences in the fatty acid contents. In both diatoms and dinoflagellates, the total fatty acid concentrations and the -3 and -6 PUFAs were markedly higher in freshwater than in brackish or marine strains. Our results show that, even though the fatty acid profiles are genetically ordered, the fatty acid contents may vary greatly by habitat and affect the -3 and -6 availability in food webs.

KW - microalgae

KW - diatoms

KW - dinoflagellates

KW - marine

KW - brackish

KW - freshwater

KW - polyunsaturated fatty acids

KW - EPA

KW - DHA

KW - FATTY-ACID-COMPOSITION

KW - ALPHA-LINOLENIC ACID

KW - FRESH-WATER

KW - MICROALGAE

KW - GROWTH

KW - TOXIN

KW - EUTROPHICATION

KW - QUALITY

KW - PROFILE

KW - FISH

KW - 416 Food Science

U2 - 10.3390/md17040233

DO - 10.3390/md17040233

M3 - Article

VL - 17

JO - Marine Drugs

JF - Marine Drugs

SN - 1660-3397

IS - 4

M1 - 233

ER -