Culture Conditions stimulating high γ-Linolenic Acid accumulation by Spirulina platensis

Brazilian Journal of Microbiology

Srinivasa Reddy Ronda²  S.s. Lele¹ 

[1] ,Koneru Lakshmaiah College of Engineering A.P ,India

关键词: gamma linolenic acid;    light intensity;    oil supplementation;    temperature;    ácido γ-linolênico;    intensidade de luz;    suplementação com óleo;    temperatura;   

DOI  :  10.1590/S1517-83822008000400018

来源: SciELO

【 摘 要 】

Gamma-linolenic acid (GLA) production by Spirulina platensis under different stress-inducing conditions was studied. Submerged culture studies showed that low temperature (25ºC), strong light intensity (6 klux) and primrose oil supplement (0.8%w/v) induced 13.2 mg/g, 14.6 mg/g and 13.5 mg linolenic acid per gram dry cell weight respectively. A careful observation of fatty acid profile of the cyanobacteria shows that, oleic acid and linoleic acid, in experiments with varying growth temperature and oil supplements respectively, helped in accumulating excess γ-linolenic acid. In addition, cultures grown at increasing light regimes maintained the γ-linolenic acid to the total fatty acid ratio(GLA/TFA) constant, despite any change in γ-linolenic acid content of the cyanobacteria.

【 授权许可】

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