Chemical compositon of three microalgae species for possible use in mariculture

Moura, Alfredo Matos; Neto, Egídio Bezerra; Koening, Maria Luise; Leça, Enide Eskinazi

doi:10.1590/s1516-89132007000300012

Cited by 18 publications

(3 citation statements)

References 25 publications

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“…The growth rate of Cylindrotheca species is much higher than that of many other diatom species . Cylindrotheca species can be used in aquaculture both as a nutritious feed and also as an antibacterial agent . Cylindrotheca species have many good characteristics, such as rapid growth and multiplication rate; they are easy to culture and harvest, and can endure contamination .…”

Section: Introductionmentioning

confidence: 99%

Fatty acid profile and lipid content ofCylindrotheca closteriumcultivated in air-lift photobioreactor

Demirel

İmamoğlu

Dalay

2015

J. Chem. Technol. Biotechnol.

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BACKGROUND The aim of this study was to investigate how the synergistic protocols between nutrient and light affect the cell growth, lipid content and fatty acid profile of Cylindrotheca closterium. Furthermore, the flow hydrodynamics of a laboratory scale internal loop air‐lift photobioreactor were investigated for the cultivation of C. closterium. RESULTS Maximum lipid productivity of 7.364 mg L−1 d−1, which corresponded to the maximum biomass production of 0.356 g L−1, was obtained in F/2 medium under light intensity of 56 μE m−2 s−1, highlighting the importance of high biomass accumulation for efficient lipid production. The most abundant saturated and monounsaturated fatty acids were pentadecanoic acid (C15:0) and palmitoleic acid (C16:1) which constituted 16–45% and 17–35% of total fatty acids for all growth conditions, respectively. CONCLUSION Palmitoleic acid was the dominant monounsaturated fatty acid, followed by oleic acid, whereas the most abundant saturated fatty acids were pentadecanoic acid and palmitic acid for C. closterium. Another notable outcome was that the fatty acid content increased in N‐free medium under low light intensity, while nitrogen starvation did not affect the fatty acid content under high light intensity. © 2015 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Fatty acid profile and lipid content ofCylindrotheca closteriumcultivated in air-lift photobioreactor

Demirel

İmamoğlu

Dalay

2015

J. Chem. Technol. Biotechnol.

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“…It has also been reported that cultivation with higher light intensity produced lower chlorophyll and protein contents [40,53]. Additionally, Junior et al pointed out that the chlorophyll content was correlated with the concentration of microalgal cells [67]. Spearman correlation analysis also indicated that chlorophyll content was strongly positive correlation with biomass production (Figure 5a).…”

Section: Discussionmentioning

confidence: 69%

Effects of low temperature and highlight stress on lipid accumulation and cell structure of Tropidoneis maxima

et al. 2023

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Tropidoneis maxima is a marine diatom with a rapid growth rate that produces high levels of lipids. To explore whether the lipid content could be further enhanced, cultures were first incubated under optimal conditions and then stressed under low temperature (10°C), a high light intensity level (80 μmol/m2·s), and the two factors together (interaction treatment). The results indicated that high light intensity and the temperature‐light interaction exhibited greater impacts on lipid synthesis of T. maxima than low temperature. The two stress treatments increased lipid content by 17.16% and 16.6% compared to the control. In particular, higher biomass concentration was obtained with high light intensity (1.082 g L−1) and low temperature (1.026 g L−1). Moreover, high light intensity (9.06%) and interaction (10.3%) treatments yielded lower starch content compared to low temperature (14.27%) at the end of the stress culture. After 3 days of stress culture, the high light intensity treatment resulted in a 97.01% increase in cell wall thickness and an 18.46% decrease in cell diameter. The results suggest that high light intensity stress on T. maxima would open a new approach to cost‐effective biolipid production.

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“…This is also the case for the Erd Schreiber medium evaluated by Sebastien and Klein [13], which tested the effects of this medium on the cultivation of the microalgaes Dunaliella salina, Tetraselmis chuii and Isochrysis galbana. Moura-Júnior [14], evaluating the growth rates of Chaetoceros gracilis and Tetraselmis gracilis on Guillard's f/2 medium during eight days, found that the latter species achieved higher densities, (above 4×10 8 cells.L -1 ) than the former species (5×10 7 cells.L -1 ). This shows that each species has different nutrient needs.…”

Section: Discussionmentioning

confidence: 99%

Compost Extract as a Nutrient Source for Algal Cultures

Oliveira¹

2013

J Aquac Res Development

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The present study tested the growth and development of the microalgae Dunaliella marina and Nitzschia closterium when subjected to three treatments: Conway medium, compost extract medium and without enrichment. MethodsExperiments of the present study were conducted in laboratory. Three culture treatments were tested: marine water with Conway medium, marine water with compost extract medium and marine water (Without enrichment treatment). The main nutrient (N and P) were analyzed in all treatments and is presented in Table 1. The effects of these treatments were tested on two microalgae species: Dunaliella marina and Nitzschia closterium.

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Chemical compositon of three microalgae species for possible use in mariculture

Abstract: ABSTRACT

Cited by 18 publications

References 25 publications

Fatty acid profile and lipid content ofCylindrotheca closteriumcultivated in air-lift photobioreactor

Fatty acid profile and lipid content ofCylindrotheca closteriumcultivated in air-lift photobioreactor

Effects of low temperature and highlight stress on lipid accumulation and cell structure of Tropidoneis maxima

Compost Extract as a Nutrient Source for Algal Cultures

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