Nannochloropsis limnetica: A freshwater microalga for marine aquaculture

Freire, Isabel; Cortina-Burgueño, Ángela; Grille, Paula; Arizcún, Marta; Abellán, E.; Segura, María V.; Sousa, Federico Witt; Otero, Ana

doi:10.1016/j.aquaculture.2016.03.015

Cited by 32 publications

(13 citation statements)

References 43 publications

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“…is microalgae that has been widely used as a live feed in aquaculture (Camacho-Rodríguez et al, 2013;Freire et al, 2016). It is also known as potential producers of pigments such as chlorophyll and carotenoids (Lubian et al, 2000;Hosikian et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Growth, biomass, and chlorophyll-a and carotenoid content of Nannochloropsis sp. strain BJ17 under different light intensities

Fakhri¹,

Arifin²,

Hariati³

et al. 2017

Jurnal Akuakultur Indonesia

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Nannochloropsis sp. has been identified as sources of live feed and pigment in aquaculture. To increase the production, the optimal environmental conditions for microalgae are required. Light intensity is one of the important factors that significantly affects the biomass and pigment of microalgae. The study aimed to determine the effect of light intensity (1,500; 3,000; and 4,500 lux) on growth, biomass production, chlorophyll-a, and carotenoid content of Nannochloropsis sp. strain BJ17. The results showed that different light intensities significantly affected the growth, biomass, chlorophyll-a and carotenoid contents of Nannochloropsis sp. strain BJ17. Increasing light intensity resulted in the increase of the growth rate, biomass, chlorophyll-a, and carotenoid contents of Nannochloropsis sp. strain BJ17. The cell achieved the highest specific growth rate of 1.729 /day and the cell concentration of 43.333×10 6 cell/mL at a light intensity of 4,500 lux. The highest chlorophyll-a and carotenoid concentrations of algae were obtained at 4,500 lux (8.304 µg/mL and 3.892 µg/mL, respectively). This study suggested that increasing light intensity led to the increase in the growth, biomass, chlorophyll-a, and carotenoid content of Nannochloropsis sp. strain BJ17.Keywords: carotenoid, chlorophyll, biomass, growth rate, light intensity ABSTRAK Nannochloropsis sp. diketahui sebagai sumber pakan alami dan pigmen pada budidaya perikanan. Budidaya pada kondisi lingkungan yang optimal diperlukan untuk meningkatkan produksi mikroalga. Intensitas cahaya merupakan salah satu faktor esensial yang secara signifikan mempengaruhi biomassa dan pigmen mikroalga. Tujuan penelitian ini adalah untuk menentukan pengaruh intensitas cahaya yang berbeda (1.500, 3.000, and 4.500 lux) terhadap pertumbuhan, produksi biomassa, klorofil-a, dan karotenoid Nannochloropsis sp. strain BJ17. Hasil menunjukkan bahwa intensitas cahaya yang berbeda berpengaruh secara signifikan terhadap pertumbuhan, biomassa dan klorofil-a dan karotenoid Nannochloropsis sp. strain BJ17. Semakin tinggi intensitas cahaya maka laju pertumbuhan, biomassa, kandungan klorofil-a dan total karotenoid Nannochloropsis sp. strain BJ17 semakin tinggi. Laju pertumbuhan spesifik tertinggi 1,729 /hari dan konsentrasi sel maksimum tertinggi 43,333×10 6 sel/ mL dihasilkan pada intensitas cahaya 4.500 lux. Konsentrasi klorofil-a (8,304 µg/mL) dan karotenoid (3,892 µg/mL) tertinggi juga diperoleh pada intensitas cahaya 4.500 lux. Studi ini menunjukkan bahwa peningkatan intensitas cahaya berperan dalam meningkatkan pertumbuhan, produksi biomassa, klorofil-a, dan karotenoid Nannochloropsis sp. strain BJ17.

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Section: Introductionmentioning

confidence: 99%

Growth, biomass, and chlorophyll-a and carotenoid content of Nannochloropsis sp. strain BJ17 under different light intensities

Fakhri¹,

Arifin²,

Hariati³

et al. 2017

Jurnal Akuakultur Indonesia

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“…Ge et al [13] observaram que os ácidos graxos insaturados, principalmente poli-insaturados, por possuírem ligações duplas podem sofrer degradação biológica e necessitar de uma posterior hidrogenação catalítica parcial, além de serem suscetíveis à oxidação durante o armazenamento. Ademais, para Freire et al [14] e Zhang et al [15] os ácidos graxos insaturados podem ser usados na alimentação de espécies marinhas fornecendo energia aos animais, formando componentes da membrana celular e substâncias altamente bioativas, regulando o metabolismo lipídico e apoiando a função imunológica.…”

Section: Resultsunclassified

COMPOSIÇÃO DE LIPÍDIOS E ÁCIDOS GRAXOS DE Spirulina sp. (LEB18) PRODUZIDA EM ÁGUA RESIDUAL DA AQUICULTURA.

Silva¹,

Cardoso²,

Duarte³

et al. 2019

Blucher Engineering Proceedings

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Resumo: O objetivo foi avaliar a composição de lipídios e ácidos graxos de Spirulina sp. (LEB 18) cultivada em água residual de aquicultura. Os cultivos foram realizados em fotobiorreatores (1L) com 100% de água residual de aquicultura suplementada com T-25, T-50, T-75. Os maiores teores de ácidos graxos poliinsaturados (38,20% e 40,66%) e C18:3n6 (38,20% e 33,50%) foram encontrados em 25% e 50%, respectivamente. Assim, os tratamentos com 25% e 50% representam uma alternativa eficiente, barata e sustentável para o setor de aquicultura, reduzindo os impactos das descargas de efluentes, produzindo biomassa de baixo custo com características diferenciadas e alto valor agregado.

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“…ese intervals are 20-40°C (47), 40-65°C (15), and 65-115°C (61). e corresponding Fisher indices F calc equal 46, 40, and 40; all of them are much higher than the tabular value F 0.05 (2, 120) � 3.1. e considered bacteria (810 genomes) can also be clustered into four parts by OGT with the following intervals: 5-30°C (305), 30-40°C (406), 40-65°C (45), and 65-85°C (54). e corresponding Fisher indices F calc equal 18, 12, and 31, which are much higher than the tabular value F 0.05 (3, 806) � 2.6. e proposed clustering of species by temperature T is in a good agreement with the traditional classification into hyperthermophiles thermophiles, mesophiles, and psychrophiles.…”

Section: Clustering Bymentioning

confidence: 98%

Optimal Growth Temperature and Intergenic Distances in Bacteria, Archaea, and Plastids of Rhodophytic Branch

Lyubetsky

Zverkov

Rubanov

et al. 2020

BioMed Research International

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The lengths of intergenic regions between neighboring genes that are convergent, divergent, or unidirectional were calculated for plastids of the rhodophytic branch and complete archaeal and bacterial genomes. Statistically significant linear relationships between any pair of the medians of these three length types have been revealed in each genomic group. Exponential relationships between the optimal growth temperature and each of the three medians have been revealed as well. The leading coefficients of the regression equations relating all pairs of the medians as well as temperature and any of the medians have the same sign and order of magnitude. The results obtained for plastids, archaea, and bacteria are also similar at the qualitative level. For instance, the medians are always low at high temperatures. At low temperatures, the medians tend to statistically significant greater values and scattering. The original model was used to test our hypothesis that the intergenic distances are optimized in particular to decrease the competition of RNA polymerases within the locus that results in transcribing shortened RNAs. Overall, this points to an effect of temperature for both remote and close genomes.

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Nannochloropsis limnetica: A freshwater microalga for marine aquaculture

Cited by 32 publications

References 43 publications

Growth, biomass, and chlorophyll-a and carotenoid content of Nannochloropsis sp. strain BJ17 under different light intensities

Growth, biomass, and chlorophyll-a and carotenoid content of Nannochloropsis sp. strain BJ17 under different light intensities

COMPOSIÇÃO DE LIPÍDIOS E ÁCIDOS GRAXOS DE Spirulina sp. (LEB18) PRODUZIDA EM ÁGUA RESIDUAL DA AQUICULTURA.

Optimal Growth Temperature and Intergenic Distances in Bacteria, Archaea, and Plastids of Rhodophytic Branch

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