KOPRI Repository

Cellular growth and fatty acid content of Arctic green microalgae

Cited 0 time in scopus
Metadata Downloads
Title
Cellular growth and fatty acid content of Arctic green microalgae
Authors
Jung, Woongsic
Kim, Eun Jae
Lim, Suyoun
Sim, Hyunji
Han, Se Jong
Kim, Sanghee
Kang, Sung-Ho
Choi, Han-Gu
Subject
Plant Sciences; Marine & Freshwater Biology
Keywords
Arctic; Chlamydomonadalean; Fatty acid methyl ester; Microalgae; Psychrophilic
Issue Date
2016
Citation
Jung, Woongsic, et al. 2016. "Cellular growth and fatty acid content of Arctic green microalgae". Algae, 31(1): 61-72.
Abstract
Arctic microalgae thrive and support primary production in extremely cold environment. Three Arctic green microalgal strains collected from freshwater near Dasan Station in Ny-Alesund, Svalbard, Arctic, were analyzed to evaluate the optimal growth conditions and contents of fatty acids. The optimal growth temperature for KNF0022, KNF0024, and KNF0032 was between 4 and 8°C. Among the three microalgal strains, KNF0032 showed the maximal cell number of 1.6 × 107 cells mL-1 at 4°C. The contents of fatty acids in microalgae biomass of KNF0022, KNF0024, and KNF0032 cultured for 75 days were 37.34, 73.25, and 144.35 mg g-1 dry cell weight, respectively. The common fatty acid methyl esters (FAMEs) analyzed from Arctic green microalgae consisted of palmitic acid methyl ester (C16:0), 5,8,11-heptadecatrienoic acid methyl ester (C17:3), oleic acid methyl ester (C18:1), linoleic acid methyl ester (C18:2), and α-linolenic acid methyl ester (C18:3). KNF0022 had high levels of heptadecanoic acid methyl ester (26.58%) and heptadecatrienoic acid methyl ester (22.17% of the total FAMEs). In KNF0024 and KNF0032, more than 72.09% of the total FAMEs consisted of mono- and polyunsaturated fatty acids. Oleic acid methyl ester from KNF0032 was detected at a high level of 20.13% of the FAMEs. Arctic freshwater microalgae are able to increase the levels of polyunsaturated fatty acids under a wide range of growth temperatures and can also be used to produce valuable industrial materials.
DOI
http://dx.doi.org/10.4490/algae.2016.31.2.8
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    qrcode

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse