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Fatty Acids Profile of Spirulina platensis Grown Under Different Temperatures and Nitrogen Concentrations

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Fatty Acids Profile of Spirulina platensis Grown Under Different Temperatures and Nitrogen Concentrations

Luciane Maria Colla

a

, Telma Elita Bertolin

a

, and Jorge Alberto Vieira Costa

b,

*

a Centro de Pesquisa em Alimentac¸a˜o, Universidade de Passo Fundo, Passo Fundo, RS, Brazil

b Laborato´rio de Engenharia Bioquı´mica, Departamento de Quı´mica, Fundac¸a˜o Universidade Federal do Rio Grande, Caixa Postal 474, CEP 96201-900, Rio Grande, RS, Brazil. Fax: +55-53-2 33 87 50. E-mail: dqmjorge@furg.br

* Author for correspondence and reprint requests

Z. Naturforsch.59 c, 55Ð59 (2004); received March 24/July 7, 2003

The influence of culture temperature and the concentration of sodium nitrate (NaNO3) on the gas-chromatographic profile of the fatty acids of the filamentous cyanobacterium Spirulina platensiswas evaluated. We found that temperature was the most important factor and that the greatest amount of gamma-linolenic acid (GLA) was obtained at 30∞C, the fatty acid profile of theSpirulinacultivated showing that (in order of abundance) palmitic, lino- lenic and linoleic acids were most prevalent.

Key words: Spirulina, Fatty Acids, Temperature

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