High pH-induced flocculation–sedimentation and effect of supernatant reuse on growth rate and lipid productivity of Scenedesmus obliquus and Chlorella vulgaris

2013 ◽  
Vol 128 ◽  
pp. 324-329 ◽  
Author(s):  
M. Castrillo ◽  
L.M. Lucas-Salas ◽  
C. Rodríguez-Gil ◽  
D. Martínez
Keyword(s):  
Growth Rate ◽  
Chlorella Vulgaris ◽  
Scenedesmus Obliquus ◽  
Lipid Productivity ◽  
High Ph

scholarly journals Effect of Light Intensity and Quality on Growth Rate and Composition of Chlorella vulgaris

Plants ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 31 ◽  
Author(s):  
Maria N. Metsoviti ◽  
George Papapolymerou ◽  
Ioannis T. Karapanagiotidis ◽  
Nikolaos Katsoulas
Keyword(s):  
Growth Rate ◽  
Light Intensity ◽  
Chlorella Vulgaris ◽  
Lipid Content ◽  
Growth Rates ◽  
Solar Irradiance ◽  
White Led ◽  
Microalgal Biomass ◽  
Nm Range ◽  
Effect Of Light

In this research, the effect of solar irradiance on Chlorella vulgaris cultivated in open bioreactors under greenhouse conditions was investigated, as well as of ratio of light intensity in the 420–520 nm range to light in the 580–680 nm range (I420–520/I580–680) and of artificial irradiation provided by red and white LED lamps in a closed flat plate laboratory bioreactor on the growth rate and composition. The increase in solar irradiance led to faster growth rates (μexp) of C. vulgaris under both environmental conditions studied in the greenhouse (in June up to 0.33 d−1 and in September up to 0.29 d−1) and higher lipid content in microalgal biomass (in June up to 25.6% and in September up to 24.7%). In the experiments conducted in the closed bioreactor, as the ratio I420–520/I580–680 increased, the specific growth rate and the biomass, protein and lipid productivities increased as well. Additionally, the increase in light intensity with red and white LED lamps resulted in faster growth rates (the μexp increased up to 0.36 d−1) and higher lipid content (up to 22.2%), while the protein, fiber, ash and moisture content remained relatively constant. Overall, the trend in biomass, lipid, and protein productivities as a function of light intensity was similar in the two systems (greenhouse and bioreactor).

Increase in lipid productivity and photosynthetic activities during distillery wastewater decolorization by Chlorella vulgaris cultures

2021 ◽  
Author(s):  
Seyed Mojtaba Soleymani Robati ◽  
Mohsen Nosrati ◽  
Faezeh Ghanati ◽  
Abazar Hajnowrouzi ◽  
Dominique Grizeau ◽  
...  
Keyword(s):  
Chlorella Vulgaris ◽  
Lipid Productivity ◽  
Distillery Wastewater ◽  
Photosynthetic Activities

Influence of mixing and shear stress on Chlorella vulgaris, Scenedesmus obliquus, and Chlamydomonas reinhardtii

2012 ◽  
Vol 25 (2) ◽  
pp. 485-495 ◽  
Author(s):  
Marco Leupold ◽  
Stefan Hindersin ◽  
Giselher Gust ◽  
Martin Kerner ◽  
Dieter Hanelt
Keyword(s):  
Shear Stress ◽  
Chlamydomonas Reinhardtii ◽  
Chlorella Vulgaris ◽  
Scenedesmus Obliquus

Influence of Heavy Metals on the Growth of Chlorella vulgaris

2021 ◽  
Vol 15 (3) ◽  
pp. 374-379
Author(s):  
Bingbing Pang ◽  
Mingzhou Zeng ◽  
Wenjia Zhang ◽  
Fengcai Ye ◽  
Changhua Shang
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Growth Rate ◽  
Growth Inhibition ◽  
Chlorella Vulgaris ◽  
Specific Growth ◽  
Concentration Level ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Average Specific Growth Rate

Growth inhibition of chromium (Cr), cadmium (Cd) and lead (Pb) to fresh water microalga Chlorella vulgaris (C. vulgaris) FACHB-8 was examined. These results demonstrated that the concentration level (EC50 value) of three heavy metals (Cr, Cd and Pb) could be utilized as an indicator for evaluating the toxicities of Cr, Cd and Pb for microalga growth. The EC50 values of Cr for C. vulgaris were 0.22, 0.07 and 0.04 mg/L at 24, 48 and 72 h based on Algorithm 2 (%Ir, percent inhibition in average specific growth rate), respectively. The EC50 values of Cd for C. vulgaris were 2.76, 1.08 and 0.93 mg/L at 24, 48 and 72 h based on Algorithm 2, respectively. The EC50 values of Pb for C. vulgaris were 73.21, 65.02 and 48.38 mg/L at 24, 48 and 72 h based on Algorithm 2, respectively. The results laid a good foundation for the application of C. vulgaris in the water quality monitoring.

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