Variation in growth, fucoxanthin, fatty acids profile and lipid content of marine diatoms Nitzschia sp. and Nanofrustulum shiloi in response to nitrogen and iron

Sahin, Mustafa Suha; Khazi, Mahammed Ilyas; Demirel, Zeliha; Dalay, Meltem Conk

doi:10.1016/j.bcab.2018.12.023

Cited by 47 publications

(23 citation statements)

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“…The sum of SFA and MUFA contents of the Nitzschia sp. NW129 exceeded 90% under different nitrogen concentrations, which was in accordance with the previous results (Sahin et al, 2019). It was reported that high nitrogen concentration generated greater accumulation of MUFA while the higher percentage of SFA and PUFA were observed under nitrogen deficiency (Qiao et al, 2016).…”

Section: Discussionsupporting

confidence: 91%

“…The Fx content of Nitzschia sp. NW129 was higher under the nitrogen enrichment conditions, consistent with Sahin et al (2019) on the noticeable increase in Fx content caused by nitrate supplementation to Nitzschia sp. Compared with other reports on Nitzschia sp., the highest Fx content of Nitzschia sp.…”

Section: Discussionsupporting

confidence: 83%

“…It has been reported that Fx content obtained from Nitzschia sp. was from 0.49 to 12 mg g −1 (Kim et al, 2012b;Guo et al, 2016;Lu et al, 2018;Sahin et al, 2019). The Fx content of Nitzschia sp.…”

Section: Discussionmentioning

confidence: 98%

“…The response of lipids to adverse growth conditions also inhibited the growth of algal cells, resulting in constant or even reduced productivity, which was not economically feasible (Griffiths et al, 2012;Guo et al, 2021). Furthermore, nitrogen concentration can also markedly affect the fatty acid composition (Sahin et al, 2019). It determines the quality of biofuel such as combustion efficiency, cold-flow properties and viscosity (Cui et al, 2020;Andeden et al, 2021), which is rarely considered in current studies.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Nitrogen Concentration on the Alkalophilic Microalga Nitzschia sp. NW129-a Promising Feedstock for the Integrated Production of Lipids and Fucoxanthin in Biorefinery

et al. 2022

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Microalgae are considered promising resources for producing a variety of high-value-added products, especially for lipids and pigments. Alkalophilic microalgae have more advantages than other microalgae when cultured outdoors on a large scale. The present study investigated the comprehensive effects of different nitrogen concentrations on fucoxanthin (Fx), lipids accumulation and the fatty acid profile of the alkaliphilic microalgae Nitzschia sp. NW129 to evaluate the potential for simultaneous production of Fx and biofuels. Fx and Lipids amassed in a coordinated growth-dependent manner in response to various concentrations, reaching 18.18 mg g–1 and 40.67% dry weight (DW), respectively. The biomass of Nitzschia sp. NW129 was 0.58 ± 0.02 g L–1 in the medium at the concentration of 117.65 mM. The highest productivities of Fx (1.44 mg L–1 d–1) and lipid (19.95 ± 1.29 mg L–1 d–1) were obtained concurrently at this concentration. Furthermore, the fatty acid methyl esters revealed excellent biofuel properties with an appropriate value of the degree unsaturation (49.97), cetane number (62.72), and cold filter plugging point (2.37), which met the European standards for biofuel production (EN14214). These results provided a reliable strategy for further industrialization and comprehensive production of biofuel and Fx by using the alkaliphilic microalgal Nitzschia sp. NW129.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Nitrogen Concentration on the Alkalophilic Microalga Nitzschia sp. NW129-a Promising Feedstock for the Integrated Production of Lipids and Fucoxanthin in Biorefinery

et al. 2022

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“…The FA profile of Bacillariophyceae has been examined in many previous studies [37][38][39][40][41][42][43]. In our study, the major fatty acids of the diatoms were myristic acid (14:0), palmitic acid (16:0), palmitoleic acid (16:1ω7-cis), EPA, and DHA.…”

Section: Discussionmentioning

confidence: 66%

Fatty Acid Profiles of Selected Microalgae Used as Live Feeds for Shrimp Postlarvae in Vietnam

Duc

Lee-Chang

Jameson

et al. 2021

Aquaculture Journal

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The importance of microalgal lipids for the survival and growth of shrimp postlarvae has been recognized in a range of studies. Microalgae with fast growth rates and high levels of polyunsaturated fatty acids (PUFA) are considered vital to maximise production and minimise cost in shrimp larviculture. The lipid content and fatty acid composition of microalgae used in shrimp production varies substantially between the algal classes and species being used in Vietnam. This study aims to characterise microalgal lipid and fatty acid (FA) profiles and evaluate the most promising species under growth conditions that are most suitable for shrimp aquaculture. Here, we report that the highest lipid contents were obtained in the Haptophyta microalgae, Tisochrysis lutea and Isochrysis galbana, at 90.3 and 61.1 mg/g, respectively. In contrast, two of the most popular diatom species being used for shrimp larval cultivation in Vietnam, Thalassiosira pseudonana and T. weissflogii, displayed the lowest lipid contents at 16.1 mg/g. Other microalgal species examined showed lipid contents ranging from 28.6 to 55 mg/g. Eicosapentaenoic acid (EPA, 20:5ω3) ranged from 0.6 to 29.9% across the species, with docosahexaenoic acid (DHA, 22:6ω3) present at 0.01 to 11.1%; the two omega (ω)–3 long-chain (LC, ≥C20) LC-PUFA varied between the microalgae groups. Polar lipids were the main lipid class, ranging from 87.2 to 97.3% of total lipids, and triacylglycerol was detected in the range of 0.01 to 2.5%. Saturated fatty acids (SFA) and monounsaturated fatty acids (MUFA) increased and PUFA decreased with increasing growth temperatures. This study demonstrated the differences in the lipid contents and FA profiles across 10 microalgal species and the effect of the higher temperature growing conditions encountered in Vietnam.

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Trends in Microbial Sources of Oils, Fats, and Fatty Acids for Industrial Use

Niamah

Verma

Al‐Sahlany

et al. 2023

Microbial Bioreactors for Industrial Molecules

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Variation in growth, fucoxanthin, fatty acids profile and lipid content of marine diatoms Nitzschia sp. and Nanofrustulum shiloi in response to nitrogen and iron

Cited by 47 publications

References 50 publications

Effect of Nitrogen Concentration on the Alkalophilic Microalga Nitzschia sp. NW129-a Promising Feedstock for the Integrated Production of Lipids and Fucoxanthin in Biorefinery

Effect of Nitrogen Concentration on the Alkalophilic Microalga Nitzschia sp. NW129-a Promising Feedstock for the Integrated Production of Lipids and Fucoxanthin in Biorefinery

Fatty Acid Profiles of Selected Microalgae Used as Live Feeds for Shrimp Postlarvae in Vietnam

Trends in Microbial Sources of Oils, Fats, and Fatty Acids for Industrial Use

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