Salinity manipulation as an effective method for enhanced starch production in the marine microalga Tetraselmis subcordiformis

Yao, Changhong; Ai, Jiang-Ning; Cao, Xupeng; Xue, Song

doi:10.1016/j.biortech.2013.07.134

Cited by 60 publications

(29 citation statements)

References 34 publications

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“…15 Yao et al also found starch accumulation enhanced in the presence of nitrogen stress and low salinity. 29 It appeared that salinity alone cannot be considered as a manipulation factor for enhanced lipid accumulation in D. tertiolecta. The next salinity variation experiment was performed in the absence of nitrogen.…”

Section: Effect Of Salinitymentioning

confidence: 99%

Enhancing Lipid Production of Dunaliella tertiolecta by Manipulating the Interactive Effect of Salinity and Nitrogen

Rizwan

Mujtaba

Rashid

et al. 2017

Chem.Biochem.Eng.Q.

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Low lipid yield is a major bottleneck towards the scale-up application of microalgae for biodiesel production. The focus of this study was to improve the lipid production of Dunaliella tertiolecta (a marine microalga) by altering the concentration of salinity and nitrogen (as nutrients). The unique aspect of this study was to investigate the interactive effect of nitrogen and salinity on lipid production and their correlation with biomass yield and nitrogen uptake. In this experiment, microalgae were grown under various combinations of salinity and nitrogen. At first, lipid production was observed under varied nitrogen concentration (0-75 mg L -1 as NaNO 3 ) and fixed salinity, 37.7 Practical Salinity Unit (PSU). The maximum cell growth rate of 288.4 mg L -1 d -1 and lipid production of 29.3 % were achieved at 75 mg L -1 of NaNO 3 . Now, this concentration of nitrogen was fixed and the effects of salinity concentrations were observed. The lipid production increased to 34 %, and cell growth rate decreased to 201.3 mg L -1 d -1 at 3.77 PSU of salinity. However, further reduction of the nitrogen concentration down to 18.75 mg L -1 of NaNO 3 increased the lipid production to 42 % and decreased biomass to 0.64 g L -1 . It was also found that lipid production was linearly correlated with nitrogen uptake. Microalgae cells consumed all of the nitrogen in the first 24 hours of acclimation; however, lipid yield did not change much over time.

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Section: Effect Of Salinitymentioning

confidence: 99%

Enhancing Lipid Production of Dunaliella tertiolecta by Manipulating the Interactive Effect of Salinity and Nitrogen

Rizwan

Mujtaba

Rashid

et al. 2017

Chem.Biochem.Eng.Q.

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show abstract

“…Microalgae species accumulate considerable amounts of carbohydrates under stressful conditions, such as macroelement (nitrogen, sulfur, or phosphorus) limitation (Ball et al, 1990;Gao et al, 2013;Yao et al, 2012), high light intensity (Sakamoto et al, 2012), and salinity (Takagi et al, 2006;Yao et al, 2013), among which nitrogen removal is perhaps the most effective and widely explored strategy to trigger carbohydrate accumulation (Dragone et al, 2011). However, nitrogen depletion reduces biomass productivity and therefore affects overall carbohydrate production (Ho et al, 2013a).…”

Section: Introductionmentioning

confidence: 99%

Identification of carbohydrates as the major carbon sink of the marine microalga Isochrysis zhangjiangensis (Haptophyta) and optimization of its productivity by nitrogen manipulation

Wang

Yao

et al. 2014

Bioresource Technology

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“…However, the mechanism is unclear. Starch synthesis decreased when microalgae were cultured in high NaCl concentration (Yao et al, 2013). Many studies suggested that starch synthesis decreased with increased lipid synthesis (Fernandes et al, 2013;Siaut et al, 2011).…”

Section: Lipid Induced 331 Lipid Accumulation and Transformationmentioning

confidence: 99%

Rapid neutral lipid accumulation of the alkali-resistant oleaginous Monoraphidium dybowskii LB50 by NaCl induction

Yang

Rong

et al. 2014

Bioresource Technology

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Salinity manipulation as an effective method for enhanced starch production in the marine microalga Tetraselmis subcordiformis

Cited by 60 publications

References 34 publications

Enhancing Lipid Production of Dunaliella tertiolecta by Manipulating the Interactive Effect of Salinity and Nitrogen

Enhancing Lipid Production of Dunaliella tertiolecta by Manipulating the Interactive Effect of Salinity and Nitrogen

Identification of carbohydrates as the major carbon sink of the marine microalga Isochrysis zhangjiangensis (Haptophyta) and optimization of its productivity by nitrogen manipulation

Rapid neutral lipid accumulation of the alkali-resistant oleaginous Monoraphidium dybowskii LB50 by NaCl induction

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