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Effect of NaNO_3 Concentration on the Growth and Fatty Acid Composition of Two Strains of Phaeodactylum tricornutum

Liang Ying

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Abstract

Growth and fath acid compositions of two strains of marine diatom Phaeodactylum tricornutum (MACC B118, MACC B221) were determined. The microalgae were grown under different initial NaNO 3 concentrations (75, 375, 750, 1 125, 1 500 and 1 875 mg/L) and harvested at late exponential growth phase. The results from one factor analysis of variance showed that the NaNO 3 concentration had not significant influence on the relative growth rate of two strains of Phaeodactylum tricornutum; the influence of NaNO 3 concentration on the fatty acid composition differed from strains to strains. The major fatty acids of two strains were 14∶0,16∶0,16∶1 n-7 and 20∶5 n-3(EPA).

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What this paper is about

Growth and fath acid compositions of two strains of marine diatom Phaeodactylum tricornutum (MACC B118, MACC B221) were determined. The microalgae were grown under different initial NaNO 3 concentrations (75, 375, 750, 1 125, 1 500 and 1 875 mg/L) and harvested at late exponential growth phase. The results from one factor analysis of variance showed that the NaNO 3 concentration had not significant influence on the relative growth rate of two strains of Phaeodactylum tricornutum; the influence of NaNO 3 concentration on the fatty acid composition differed from strains to strains. The major fatty acids of two strains were 14∶0,16∶0,16∶1 n-7 and 20∶5 n-3(EPA).

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Available abstract

Growth and fath acid compositions of two strains of marine diatom Phaeodactylum tricornutum (MACC B118, MACC B221) were determined. The microalgae were grown under different initial NaNO 3 concentrations (75, 375, 750, 1 125, 1 500 and 1 875 mg/L) and harvested at late exponential growth phase. The results from one factor analysis of variance showed that the NaNO 3 concentration had not significant influence on the relative growth rate of two strains of Phaeodactylum tricornutum; the influence of NaNO 3 concentration on the fatty acid composition differed from strains to strains. The major fatty acids of two strains were 14∶0,16∶0,16∶1 n-7 and 20∶5 n-3(EPA).

Key concepts: Phaeodactylum tricornutum, Composition (language), Food science, Diatom, Fatty acid, Chemistry, Botany, Biology

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Effect of NaNO_3 Concentration on the Growth and Fatty Acid Composition of Two Strains of Phaeodactylum tricornutum — Research Paper | ScholarLens