Production of γ‐linolenic acid from the marine green alga Chlorella sp. NKG 042401

Yuki Miura, Koji Sode, Noriyuki Nakamura, Naoki Matsunaga, Tadashi Matsunaga

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Abstract γ‐Linolenic acid (GLA) production using a high GLA producing marine green alga, Chlorella sp. NKG 042401, was studied. GLA was presented in the galactolipid fraction (37.9%/total fatty acids). The effects of growth conditions on GLA production were studied. Optimum salinity for GLA production was 5 g 1−1, at which salinity the highest cell concentration was achieved, resulting in a 1.6‐fold increase in GLA productivity. Total fatty acid, however, was not drastically affected by change of salinity. Nitrogen starvation decreased the ratio of unsaturated fatty acids, and consequently GLA ratio in total fatty acid decreased. The urea adduct method was used to concentrate GLA from crude extract. As a result, after 5 sequential concentration procedures, GLA was concentrated 5‐fold with a yield of 49%.

Original languageEnglish
Pages (from-to)163-167
Number of pages5
JournalFEMS Microbiology Letters
Volume107
Issue number2-3
DOIs
Publication statusPublished - 1993 Jan 1
Externally publishedYes

Fingerprint

Chlorella
Chlorophyta
alpha-Linolenic Acid
Salinity
Fatty Acids
Galactolipids
Starvation
Complex Mixtures
Unsaturated Fatty Acids
Urea
Nitrogen
Growth

Keywords

  • Chlorella sp
  • Environment
  • Fatty acid
  • Gamma‐linolenic acid (GLA)
  • Green algae

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology
  • Genetics

Cite this

Production of γ‐linolenic acid from the marine green alga Chlorella sp. NKG 042401. / Miura, Yuki; Sode, Koji; Nakamura, Noriyuki; Matsunaga, Naoki; Matsunaga, Tadashi.

In: FEMS Microbiology Letters, Vol. 107, No. 2-3, 01.01.1993, p. 163-167.

Research output: Contribution to journalArticle

Miura, Yuki ; Sode, Koji ; Nakamura, Noriyuki ; Matsunaga, Naoki ; Matsunaga, Tadashi. / Production of γ‐linolenic acid from the marine green alga Chlorella sp. NKG 042401. In: FEMS Microbiology Letters. 1993 ; Vol. 107, No. 2-3. pp. 163-167.
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