Luminescent photobioreactor design for improved algal growth and photosynthetic pigment production through spectral conversion of light

Mohsenpour, Seyedeh Fatemeh; Willoughby, Nicholas

doi:10.1016/j.biortech.2013.05.024

Cited by 102 publications

(44 citation statements)

References 22 publications

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“…Mohsenpour et al recently reported that, provided a well-mixed PBR, red light can promote the synthesis of phycobiliproteins as well as biomass production in Gloeothece membranacea. 45 However, research by Wyman et al shows that the spectral influence on growth and biomass compositions depends much more on the organism used. 46 From the aspect of an economically beneficial fermentation, sufficient biomass concentration has to be produced.…”

Section: Light Quantity and Qualitymentioning

confidence: 99%

Photo-autotrophic Production of Poly(hydroxyalkanoates) in Cyanobacteria

Drosg¹,

Fritz²,

Gattermayr³

et al. 2015

Chem.Biochem.Eng.Q.

100

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In the last two decades, poly(hydroxyalkanoates) (PHA) were solely produced using heterotrophic bacteria in aerobic cultivation. With respect to the great potential (500 Mt yr -1 ) of raw industrial CO 2 streams and even greater potential of flue gases, the focus on photo-autotrophic biotechnological processes is increasing steadily. Primarily, PHA-gene transfer from heterotrophic bacteria into algae and plant cells was attempted, with the intention to combine the known biosynthesis pathway with autotrophic cultivation. The natural occurrence of PHA in cyanobacteria is known at least since 1966. However, cyanobacteria were never considered for commercial production because the PHA amount based on cell mass and based on volumetric productivity is generally very low. Therefore, strain improvements were suggested, either by gene amplification or by suppression of biochemical pathways competing for the cell's acetate pool. In the late 1990s, the success of genetic modification was confirmed experimentally, elevating the cyanobacteria cell's PHA content. With additional optimization, PHB amounts up to 50 % w/w of biomass dry matter or up to about 2.4 g L -1 bioreactor volume could be produced within 11 days. Considering the land use for agriculture and the competition for plant biomass between food, feed, fuel and energy production, the binding of CO 2 in a biotechnological process using photo-autotrophic microorganisms may become a promising option.

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Section: Light Quantity and Qualitymentioning

confidence: 99%

Photo-autotrophic Production of Poly(hydroxyalkanoates) in Cyanobacteria

Drosg¹,

Fritz²,

Gattermayr³

et al. 2015

Chem.Biochem.Eng.Q.

100

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“…Under broad spectrum illumination, the optimal emission spectra of the dye to achieve enhanced growth rates is dependent on the algal pigments present [89,90]. A number of studies using photoluminescence to shift UV light into the PAR region have demonstrated improvements in growth rates [91], and up to 10% increase in biomass productivity [92,93].…”

Section: Photoluminescence (Pl)mentioning

confidence: 99%

Spectral light management for solar energy conversion systems

2016

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Due to the inherent broadband nature of the solar radiation, combined with the narrow spectral sensitivity range of direct solar to electricity devices, there is a massive opportunity to manipulate the solar spectrum to increase the functionality and efficiency of solar energy conversion devices. Spectral splitting or manipulation facilitates the efficient combination of both high-temperature solar thermal systems, which can absorb over the entire solar spectrum to create heat, and photovoltaic cells, which only convert a range of wavelengths to electricity. It has only recently been possible, with the development of nanofabrication techniques, to integrate micro-and nano-photonic structures as spectrum splitters/manipulators into solar energy conversion devices. In this paper, we summarize the recent developments in beam splitting techniques, and highlight some relevant applications including combined PV-thermal collectors and efficient algae production, and suggest paths for future development in this field.

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“…However, due to its longer wavelength, the lower light energy of red light inhibits its ability to penetrate high density or deep cultures. Therefore, the cultures should be well mixed or be kept at low concentrations under these light conditions .…”

Section: Light Characteristics In Microalgae Cultivationmentioning

confidence: 99%

Microalgae cultivation in photobioreactors: An overview of light characteristics

Wang

Stiles

Chen

et al. 2014

Engineering in Life Sciences

131

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There is increasing commercial interest in the cultivation of microalgae for the production of biofuels, foods, pharmaceuticals, and wastewater treatment. Light is one of the most important factors for the growth and product yield from photosynthetic cells. In this review, light transfer and photosynthesis in algal cells, and the issues of light utilization in the cultivation of microalgae in photobioreactor (PBR) are discussed. Research progress on the improvement of light utilization in microalgae cultivation is outlined. In addition, PBR design assisted by computational fluid dynamics and a strong focus on improving the light characteristics in the scale-up of PBRs is emphasized.

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Luminescent photobioreactor design for improved algal growth and photosynthetic pigment production through spectral conversion of light

Cited by 102 publications

References 22 publications

Photo-autotrophic Production of Poly(hydroxyalkanoates) in Cyanobacteria

Photo-autotrophic Production of Poly(hydroxyalkanoates) in Cyanobacteria

Spectral light management for solar energy conversion systems

Microalgae cultivation in photobioreactors: An overview of light characteristics

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