Effect of ammonium nitrogen on microalgal growth, biochemical composition and photosynthetic performance in mixotrophic cultivation

Li, Xiaoting; Li, Wei; Zhai, Jun; Wei, Haoxuan; Wang, Quanfeng

doi:10.1016/j.biortech.2018.11.042

Cited by 140 publications

(73 citation statements)

References 37 publications

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“…The proportion of protein and lipids are hardly changed by cultivation modes, such as autotrophic, heterotrophic and mixotrophic cultivations unless there are stress conditions, an intrinsic physiological property of microalgae (Li et al, 2019). The use of mixotrophic conditions for in vitro cultivation of microalgae should be implemented.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of the effects of sugarcane molasses as a carbon source for Ankistrodesmus gracilis and Haematococcus pluvialis (Chlorophyceae)

2020

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Two species of Chlorophyceae, Ankistrodesmus gracilis and Haemotococcus pluvialis, were used to compare and evaluate the effect of sugarcane molasses as a carbon source. Highest cell density in the two microalgae culture media was obtained in commercial culture media (CHU12 and WC). During exponential growth (day 1 to day 10), high cell density in H. pluvialis was detected for E. crassipes culture medium ranging between 0.4 x 105 cells mL-1 and 1.7 x 105 cells mL-1. Culture media were fundamental for growth under mixotrophic cultivation. Sugarcane molasses showed different results for the two microalgae with regard to growth performance, lipid and protein levels. Rates were high for H. pluvialis except lipid at the end of the experiment. In fact, A. gracilis presented almost double the lipid levels. Sugarcane molasses may be an alternative carbon source in laboratory conditions.

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Section: Discussionmentioning

confidence: 99%

“…al., 2017). Cell growth in mixotrophic conditions is not strictly dependent on photosynthesis and enhances microalgae growth with various nitrogen source (Li et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the effects of sugarcane molasses as a carbon source for Ankistrodesmus gracilis and Haematococcus pluvialis (Chlorophyceae)

2020

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“…Biomass was high in photoautotrophic condition for NPK, EC and LM, whilst growth rate in LM and CHU 12 culture media was higher in mixotrophic cultivation for M. gracile growth. Sufficient energy supported nutrients uptake and transport between cell compartments and enhance a better microalgae growth in photoautotrophic condition (Li et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…There was not observed the influence of total nitrogen with lipid contents in the two cultivation conditions. Li et al (2019) reported that ammonium decreased microalga lipid in photoautotrophic cultivation and increased lipid in mixotrophic cultivation, with inhibition of photosynthetic performance inducing stronger photo-protection, particularly in mixotrophic cultivation. Concentration in which nitrogen compounds may be effectively toxic varies greatly with microalgae species and culture conditions (Li et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

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Comparison of photoautotrophic and mixotrophic cultivation of microalgae Messastrum gracile (Chlorophyceae) in alternative culture media

et al. 2020

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Growth and biological conditions of Messastrum gracile were evaluated to compare the effect of photoautotrophic and mixotrophic cultivation on the increase of biomass production and chemical conditions cultured in macrophyte and commercial culture media. The growth rate (k) of M. gracile was different in the culture media, higher in mixotrophic cultivation for Lemna minor culture medium, whilst to Eichhornia crassipes and NPK culture media were higher in photoautotrophic cultivation. Mean lipid contents in photoautotrophic cultivation were 8.2% biomass dry weight, whereas they reached 19% biomass dry weight in mixotrophic cultivation. Protein contents were below 48% biomass dry weight in photoautotrophic cultivation and 30% biomass dry weight in mixotrophic cultivation. Messastrum gracile cultured in macrophyte culture media (E. crassipes and L. minor) and NPK culture medium provided satisfactory results with regard to lipid and protein contents in mixotrophic and photoautotrophic cultivations, respectively. Lipid and protein contents in alternative media were higher or similar to the CHU12 commercial culture medium.

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Effect of different mixed light‐emitting diode light wavelengths on CO₂ absorption from biogas and nutrient removal from biogas slurry by microalgae and fungi induced using strigolactone and endophytic bacteria

Yang

Dong

Song

et al. 2022

Water Environment Research

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In this study, biogas and biogas slurry were simultaneously treated using two symbiotic systems: Chlorella vulgaris-Ganoderma lucidum-S395-2 (endophytic bacteria) and Scenedesmus obliquus-G. lucidum-S395-2. The influence of different mixed illumination (red and blue) intensity ratios on the algal symbionts' extracellular carbonic anhydrase activities was investigated, as well as the rates of microalgal growth and photosynthesis. The treatment performance was simultaneously assessed in terms of the efficiency of organic matter or nutrient removal and the level of CO 2 absorption. The results indicated that red-blue light combinations with an intensity ratio of 5:5 were optimal. When comparing the performance of the two symbiotic systems, the C. vulgaris-G. lucidum-S395-2 symbiont co-culture system achieved significantly improved photosynthetic rates, biomass growth, and treatment effects. Under the optimal treatment conditions, the organic matter and nutrient removal rates were 81.06% ± 7.06% for chemical oxygen demand, 82.32% ± 7.18% for total nitrogen, and 82.98% ± 7.26% for total phosphorus. In addition, the rate of CO 2 removal from biogas was 63.38% ± 5.35%. Practitioner Points• The red and blue light intensity ratio of 5:5 showed the best removal performance.• C. vulgaris-G. lucidum-S395-2 system obtained the best photosynthetic performance.• The carbonic anhydrase activity had positive effects on CO2 removal performance.Prof. Yongjun Zhao will handle correspondence at all stages of refereeing and publication, also post-publication.Meiying Yang and Xuechang Dong contributed equally to this work.Yongjun Zhao is a member of the Water Environment Federation (WEF).

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Effect of ammonium nitrogen on microalgal growth, biochemical composition and photosynthetic performance in mixotrophic cultivation

Cited by 140 publications

References 37 publications

Evaluation of the effects of sugarcane molasses as a carbon source for Ankistrodesmus gracilis and Haematococcus pluvialis (Chlorophyceae)

Evaluation of the effects of sugarcane molasses as a carbon source for Ankistrodesmus gracilis and Haematococcus pluvialis (Chlorophyceae)

Comparison of photoautotrophic and mixotrophic cultivation of microalgae Messastrum gracile (Chlorophyceae) in alternative culture media

Effect of different mixed light‐emitting diode light wavelengths on CO₂ absorption from biogas and nutrient removal from biogas slurry by microalgae and fungi induced using strigolactone and endophytic bacteria

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Effect of ammonium nitrogen on microalgal growth, biochemical composition and photosynthetic performance in mixotrophic cultivation

Cited by 140 publications

References 37 publications

Evaluation of the effects of sugarcane molasses as a carbon source for Ankistrodesmus gracilis and Haematococcus pluvialis (Chlorophyceae)

Evaluation of the effects of sugarcane molasses as a carbon source for Ankistrodesmus gracilis and Haematococcus pluvialis (Chlorophyceae)

Comparison of photoautotrophic and mixotrophic cultivation of microalgae Messastrum gracile (Chlorophyceae) in alternative culture media

Effect of different mixed light‐emitting diode light wavelengths on CO2 absorption from biogas and nutrient removal from biogas slurry by microalgae and fungi induced using strigolactone and endophytic bacteria

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Effect of different mixed light‐emitting diode light wavelengths on CO₂ absorption from biogas and nutrient removal from biogas slurry by microalgae and fungi induced using strigolactone and endophytic bacteria