Simultaneous accumulation of neutral lipids and biomass in Nannochloropsis oceanica IMET1 under high light intensity and nitrogen replete conditions

Yan, Xiangwu; Zhang, Jingtao; Cui, Jiatao; Yao, Xiaofeng; Sun, Zhiqiang; Feng, Yingang; Cui, Qiu

doi:10.1016/j.algal.2015.05.019

Cited by 38 publications

(22 citation statements)

References 44 publications

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“…On the contrary, dramatic reductions in GL and PL were occurred in ML and HL cultures. It was evident to find that higher light intensity was benefit for the storage of NL, and this trend is similar to that of previous reports (Ho et al, 2014;Gwak et al, 2014;He et al, 2015a,b;Xiao et al, 2015). Overall, light regimes were important for NL accumulation in A. fusiformis H1.…”

Section: Evaluation Of Biodiesel Qualities In Different Light Regimessupporting

confidence: 89%

“…The results was consistent with previous reports in which the lipid content was promoted under HL, mainly in the form of neutral lipid (Gwak et al, 2014;He et al, 2015a,b;Xiao et al, 2015). Summarized the productivities in Table 2 intensity affects the relative size of the lipid pools and the fixation of carbon increased with light, thus, lipid storage can provide a larger sink for the available energy, especially when light was in excess to the requirement for growth (He et al, 2015a,b).…”

supporting

confidence: 93%

“…As for photoperiods and light intensities, under longer light duration time and higher light intensity, the level of SFA and MUFA increased, PUFA decreased. These results were consistent with that previously reported for Chlorella sp., M. dybowskii and Nannochloropsis oceanic (He et al, 2015b;Xiao et al, 2015). In general, A. fusiformis H1 mainly contained the lipid profile of C16 and C18 fatty acids which were main candidates for biodiesel production (Knothe, 2011;He et al, 2015a,b;Xiao et al, 2015).…”

Section: Evaluation Of Biodiesel Qualities In Different Light Regimesmentioning

confidence: 99%

“…All the results may reflect the reduction in effective irradiance in dense microalgal culture, in short, the light received by single cells was declined in dense culture. Many literatures have mentioned that higher light intensities were benefit for lipid production (Ho et al, 2014;He et al, 2015a,b;Xiao et al, 2015). Hence, the lower initial inoculum density without self-shading enable microalgae cells to receive more light to induce lipid accumulation, although is accompanied with lower biomass productivity.…”

mentioning

confidence: 99%

“…Summarized the productivities in Table 2 intensity affects the relative size of the lipid pools and the fixation of carbon increased with light, thus, lipid storage can provide a larger sink for the available energy, especially when light was in excess to the requirement for growth (He et al, 2015a,b). In many literatures, it had been proved that higher light can synchronously accumulate both biomass and lipid to achieve large amounts of lipid products eventually (Damiani et al, 2010;Ho et al, 2014;Gwak et al, 2014;He et al, 2015a,b;Xiao et al, 2015). However, the necessity of light varied in microalgae from one to another, even in same species.…”

mentioning

confidence: 99%

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Optimizing light regimes on growth and lipid accumulation in Ankistrodesmus fusiformis H1 for biodiesel production

Yang

2015

Bioresource Technology

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Section: Evaluation Of Biodiesel Qualities In Different Light Regimessupporting

confidence: 89%

supporting

confidence: 93%

Section: Evaluation Of Biodiesel Qualities In Different Light Regimesmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Optimizing light regimes on growth and lipid accumulation in Ankistrodesmus fusiformis H1 for biodiesel production

Yang

2015

Bioresource Technology

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Effects of incident light intensity and light path length on cell growth and oil accumulation in Botryococcus braunii (Chlorophyta)

Wang

Chen

et al. 2018

Engineering in Life Sciences

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Botryococcus braunii was cultured in different light path length under different incident light intensity to investigate the effect of light on alga growth as well as hydrocarbon and fatty acid accumulation. Results indicated that longer light path length required higher incident light intensity in order to meet the light requirement of algal growth and hydrocarbon accumulation during the course of cultivation. However, hydrocarbon profile was only affected by the incident light intensity and not influenced by the light path length. High incident light intensity enhanced the accumulation of hydrocarbons with longer carbon chains. Besides, the fatty acid content and profiles were significantly influenced by both incident light intensity and light path. Higher fatty acid content and higher percentage of C18 and monounsaturated fatty acid components were achieved at the higher incident light intensity and lower light path length. Taken together, these results are benefit to improve its biomass and oil productivity through the optimization of light and photobioreactor design.

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Effect of fed‐batch and semicontinuous regimen on Nannochloropsis oculata grown in different culture media to high‐value products

Martínez-Macías

Meza-Escalante

Serrano‐Palacios

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND High cell density in cultures of microalgae is a key factor to recover biomass and extract metabolites of interest. A fed batch tubular reactor (FBTR) and semi‐continuous reactor (SCR) with f/2 Guillard Medium (f/2GM) and algal medium (AM) were evaluated. Both modes were operated under completely defined conditions to assess their effect on cell density, and lipid, protein and carbohydrate productivity of the microalgae Nannochloropsis oculata. RESULTS Results show that the FBTR promotes the highest cell density for both culture media, achieving 525 ± 1.84×106 cell mL‐1. With AM in the SCR, specific growth rate, productivities of biomass and lipids were the highest, as well as content of protein (48%), lipid (52.1%) and carbohydrates (17%). No significant differences were found in saturated fatty acids composition, whereas unsaturated fatty acids composition was affected by the operating regimen, this being higher in the FBTR. CONCLUSION The use of AM in both operating modes, FBTR and SCR, increased the cell density and improved the lipid content of N. oculata. A good option would be to combine both culture modes; first, use the FBTR to obtain high cell densities and then apply the SCR mode to increase lipid productivity; finally, an important quantity of high‐value products could be recovered. © 2017 Society of Chemical Industry

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Simultaneous accumulation of neutral lipids and biomass in Nannochloropsis oceanica IMET1 under high light intensity and nitrogen replete conditions

Cited by 38 publications

References 44 publications

Optimizing light regimes on growth and lipid accumulation in Ankistrodesmus fusiformis H1 for biodiesel production

Optimizing light regimes on growth and lipid accumulation in Ankistrodesmus fusiformis H1 for biodiesel production

Effects of incident light intensity and light path length on cell growth and oil accumulation in Botryococcus braunii (Chlorophyta)

Effect of fed‐batch and semicontinuous regimen on Nannochloropsis oculata grown in different culture media to high‐value products

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