Effect of light quality on production of extracellular polysaccharides and growth rate of Porphyridium cruentum

By T. You, S. M. Barnett. 2004

167 citations recorded by the source corpus.

Blue light and red light can be used to improve the efficiency of photosynthesis and increase the production of extracellular polysaccharide. Growth and extracellular polysaccharide production by Porphyridium cruentum were measured as a function of light wavelength and intensity. Light quality was a key factor for controlling the growth and polysaccharide production. The growth rate of P. cruentum increased with enhanced of light intensity, however a light level beyond the saturation point inhibited the growth of microalgae. A chromatic spectrum of blue and red light was used to enhance the growth and extracellular polysaccharide production due to the characteristics of the photosynthetic process. Efficient light transfer was the most important parameters in optimizing the mass culture of the photosynthetic organism.

Subfields: Oceanography, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/e15889d9bad9cb297544050d16f40817768c1a0b

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In Oceanography

In Renewable Energy, Sustainability and the Environment

Citations in the corpus

Extracellular Polymeric Substances (EPS) as Microalgal Bioproducts: A Review of Factors Affecting EPS Synthesis and Application in Flocculation Processes (2021, background): “Results showed that blue light (400–500 nm) and red light (600–700 nm) increase extracellular polysaccharide production [40].”
Sustainable photosynthetic biocathode in microbial desalination cells (2015, background): “For example, growth rate of Dunaliella viridis decreased to 63% with increase in light intensity from 700 to 1500 lmol m 2 s 1 [16–19].”
Effect of temperature and light on the growth of algae species: A review (2015, background): “95 g l 1 respectively at 70 mmol m 2 s (1), Photon flux density [64].”
Overview of the potential of microalgae for CO2 sequestration (2014, background): “These findings suggest that blue and red lights are more suitable than others for both microalgal cell growth and CO2 mitigation (You and Barnett 2004; Ravelonandro et al. 2008).”
Effects of Environmental Factors and Nutrient Availability on the Biochemical Composition of Algae for Biofuels Production: A Review (2013, background): “to increase growth and polysaccharide production [100].”
Screening of marine microalgae: Investigation of new exopolysaccharide producers (2019, background): “For many microalgae strains, the release of EPS in the environment has been described to occur in response to a “stress”, relating to a nutrient deficiency (nitrogen or phosphorous sources for instance), or the quality and the intensity of light or the salinity of the medium [38–44].”