CO2 biofixation and fatty acid composition of Scenedesmus obliquus and Chlorella pyrenoidosa in response to different CO2 levels

Tang, Dahang; Han, Wei; Li, Penglin; Miao, Xiangshui; Zhong, Jian‐Jiang

doi:10.1016/j.biortech.2010.10.047

Cited by 693 publications

(302 citation statements)

References 34 publications

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“…Also for N. oculata [23] and A. platensis [24] the composition of fatty acids resembles the known composition. The FA profile of the S. rubescens samples is in accordance with FA profiles published in literature [25].…”

Section: Resultssupporting

confidence: 88%

Hydrothermal Disintegration and Extraction of Different Microalgae Species

2018

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Abstract:For the disintegration and extraction of microalgae to produce lipids and biofuels, a novel processing technology was investigated. The utilization of a hydrothermal treatment was tested on four different microalgae species (Scenedesmus rubescens, Chlorella vulgaris, Nannochloropsis oculata and Arthorspira platensis (Spirulina)) to determine whether it has an advantage in comparison to other disintegration methods for lipid extraction. It was shown, that hydrothermal treatment is a reasonable opportunity to utilize microalgae without drying and increase the lipid yield of an algae extraction process. For three of the four microalgae species, the extraction yield with a prior hydrothermal treatment elevated the lipid yield up to six times in comparison to direct extraction. Only Scenedesmus rubescens showed a different behaviour. Reason can be found in the different cell wall of the species. The investigation of the differences in cell wall composition of the used species indicate that the existence of algaenan as a cell wall compound plays a major role in stability.

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Section: Resultssupporting

confidence: 88%

Hydrothermal Disintegration and Extraction of Different Microalgae Species

2018

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“…Comparatively diethyl ether and ethanol and methanol showed a marked activity against Klebsiella pneumoniae followed by Proteus mirabilis and Salmonella typhi exhibiting 10 mm, 8 mm and 7 mm of inhibition zone respectively. The same results were also reported by other workers of [35,36].…”

Section: Anti Bacterial Activity Of Human Pathogen From Various Extrasupporting

confidence: 92%

Cultivation of Efficient Marine Microalgae and Their Biochemical Composition and Its Antibacterial Activity against Human Pathogens

Dineshkumar

Kumaravel

Sampathkumar

2017

JAMB

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The three marine microalgae (Chlorella vulgaris, Spirulina platensis and Nannochloropsis bacillaris) were collected from Vellar estuary, South east coast of India. These three microalgae were cultivated in respective media and estimated their biochemical composition and antibacterial activity. Simultaneously, these cultures were cultivated in flask containing 500 ml of respective media at lab condition for a period of one month and their growth, pH, biomass and CO 2 fixation and carbon content were determined. Based on the growth rate, the pH of three microalgae in media was observed at lab condition. During maximum growth and biomass, the pH was found to be ranged between 9 & 11 for Spirulina platensis, 7 & 9 for Chlorella vulgaris; 8 & 9 for Nannochloropsis bacillaris. Spirulina platensis and Chlorella vulgaris reached maximum growth rate whereas Chlorella vulgaris and Spirulina platensis showed maximum biomass produced. Chlorella vulgaris and Spirulina platensis attained maximum biomass in media at lab condition, also fixed highest level of carbon dioxide in media but they did not produce maximum biomass, though the growth of Nannochloropsis bacillaris were found high in media at lab condition. Among the three microalgae, Chlorella vulgaris and Spirulina platensis produced highest biochemical compounds. Hence Chlorella vulgaris and Spirulina platensis were selected as efficient microalgae for antibacterial activity against human pathogen. This study revealed that certain green algae and blue green microalgae having high growth, pH, CO 2 fixation, carbon content and biochemical composition paves the way for pharmaceutical activity. Antibacterial activity was evaluated for Chlorella and Spirulina with their potential health benefits.

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“…In contrast, Soletto et al, [87] suggested that osmotic pressure is the primary source of growth inhibition. Clearly additional research is required for microalgae cultivation under high CO 2 concentrations, as other research has found growth also depends on cell densities [88], nutrients and light [75], and also on the species [7,85]. …”

Section: High Co 2 Tolerant Microalgae Speciesmentioning

confidence: 99%

CO2 bioremediation by microalgae in photobioreactors: Impacts of biomass and CO2 concentrations, light, and temperature

et al. 2014

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Microalgae have the potential to recycle and bioremediate CO 2 and also produce chemical energy in the form of biomass. The potential production of renewable energy and high value products (i.e. carotenoid, antioxidants and polyunsaturated fatty acids) make large scale microalgal cultivation an attractive application. To achieve high productivity all microalgae cultures require CO 2 addition. Various microalgae species have shown different capabilities to bioremediate CO 2 . This review article reports biomass concentrations, biomass productivities, and CO 2 fixation rates of several microalgae and cyanobacteria species under different input CO 2 concentrations. The effect of important factors such as photo-bioreactor, temperature, light intensity on CO 2 removal have also been discussed.

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CO2 biofixation and fatty acid composition of Scenedesmus obliquus and Chlorella pyrenoidosa in response to different CO2 levels

Cited by 693 publications

References 34 publications

Hydrothermal Disintegration and Extraction of Different Microalgae Species

Hydrothermal Disintegration and Extraction of Different Microalgae Species

Cultivation of Efficient Marine Microalgae and Their Biochemical Composition and Its Antibacterial Activity against Human Pathogens

CO2 bioremediation by microalgae in photobioreactors: Impacts of biomass and CO2 concentrations, light, and temperature

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