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Carlos Ricardo Soccol - One of the best experts on this subject based on the ideXlab platform.

  • potential Carbon Dioxide Fixation by industrially important microalgae
    Bioresource Technology, 2010
    Co-Authors: Eduardo Bittencourt Sydney, Wilerson Sturm, Ashok Pandey, Christian Larroche, Julio Cesar De Carvalho, Vanete Thomazsoccol, Carlos Ricardo Soccol
    Abstract:

    abstract The present study aimed at investigating the Carbon metabolism in terms of Carbon Dioxide fixation andits destination in microalgae cultivations. To this purpose, analysis of growth parameters, media of cul-tivation, biomass composition and productivity and nutrients balance were performed. Four microalgaesuitable for mass cultivation were evaluated: Dunaliella tertiolecta SAD-13.86, Chlorella vulgaris LEB-104,Spirulina platensis LEB-52 and Botryococcus braunii SAG-30.81. Global rates of Carbon Dioxide and oxygenwere determinated by a system developed in our laboratory. B. braunii presented the highest CO 2 fixationrate, followed by S. platensis, D. tertiolecta and C. vulgaris (496.98, 318.61, 272.4 and 251.64 mg L 1 day 1 ,respectively). Carbon Dioxide fixated was mainly used for microalgal biomass production. Nitrogen, phos-phorus (calcium for D. tertiolecta), potassium and magnesium consumption rates (mg gX 1 ) were evalu-ated for the four microalgae. Biomass composition presented a predominance of proteins but also a highamount of lipids, especially in D. tertiolecta and B. braunii. 2010 Published by Elsevier Ltd.

  • Potential Carbon Dioxide Fixation by industrially important microalgae
    Bioresource Technology, 2010
    Co-Authors: Eduardo Bittencourt Sydney, João Carlos Monteiro De Carvalho, Wilerson Sturm, Vanete Thomaz-soccol, Ashok Pandey, Christian Larroche, Carlos Ricardo Soccol
    Abstract:

    The present study aimed at investigating the Carbon metabolism in terms of Carbon Dioxide Fixation and its destination in microalgae cultivations. To this purpose, analysis of growth parameters, media of cultivation, biomass composition and productivity and nutrients balance were performed. Four microalgae suitable for mass cultivation were evaluated: Dunaliella tertiolecta SAD-13.86, Chlorella vulgaris LEB-104, Spirulina platensis LEB-52 and Botryococcus braunii SAG-30.81. Global rates of Carbon Dioxide and oxygen were determinated by a system developed in our laboratory. B. braunii presented the highest CO2 Fixation rate, followed by S. platensis, D. tertiolecta and C. vulgaris (496.98, 318.61, 272.4 and 251.64 mg L-1 day-1, respectively). Carbon Dioxide fixated was mainly used for microalgal biomass production. Nitrogen, phosphorus (calcium for D. tertiolecta), potassium and magnesium consumption rates (mg gX-1) were evaluated for the four microalgae. Biomass composition presented a predominance of proteins but also a high amount of lipids, especially in D. tertiolecta and B. braunii. © 2010.

Quanyu Zhao - One of the best experts on this subject based on the ideXlab platform.

  • adaptive evolution and Carbon Dioxide Fixation of chlorella sp in simulated flue gas
    Science of The Total Environment, 2019
    Co-Authors: Dujia Cheng, Yizhong Yuan, Chengyu Yang, Tao Tang, Quanyu Zhao, Yuhan Sun
    Abstract:

    Carbon Dioxide and other greenhouse gas emissions leads to global warming. Biological capture through microalgae is a potential approach for solving this environmental problem. It is still a technical challenge to enhance the tolerance of microalgae to flue gas if CO2 is fixed from flue gas directly. A new strain, Chlorella sp. Cv was obtained through adaptive evolution (46 cycles) against simulated flue gas (10% CO2, 200 ppm NOx and 100 ppm SOx). It was confirmed that Chlorella sp. Cv could tolerate simulated flue gas conditions and the maximum CO2 Fixation rate was 1.2 g L-1 d(-1). In a two-stage process, the biomass concentration was 2.7 g L-1 and the carbohydrate content was 68.4%. Comparative transcriptomic analysis was performed for Chlorella sp. Cv under simulated flue gas and control conditions (10% CO2). These responses against simulated flue gas uncovered the significant difference between the evolved strain and the original strain. The metabolic responses to flue gas were explored with focus on various specific genes. Upregulation of several genes related to photosynthesis, oxidative phosphorylation, CO2 Fixation, sulfur metabolism and nitrogen metabolism was beneficial for the evolved strain to tolerate the simulated flue gas. The upregulation of genes related to extracellular sulfur transport and nitrate reductase was essential to utilize the sulfate and nitrate from dissolved SOx and NOx. The results in this study are helpful to establish a new process for CO2 capture directly from industrial flue gas. (C) 2018 Elsevier B.V. All rights reserved.

  • adaptive evolution and Carbon Dioxide Fixation of chlorella sp in simulated flue gas
    Science of The Total Environment, 2019
    Co-Authors: Dujia Cheng, Yizhong Yuan, Chengyu Yang, Tao Tang, Quanyu Zhao, Yuhan Sun
    Abstract:

    Abstract Carbon Dioxide and other greenhouse gas emissions leads to global warming. Biological capture through microalgae is a potential approach for solving this environmental problem. It is still a technical challenge to enhance the tolerance of microalgae to flue gas if CO2 is fixed from flue gas directly. A new strain, Chlorella sp. Cv was obtained through adaptive evolution (46 cycles) against simulated flue gas (10% CO2, 200 ppm NOx and 100 ppm SOx). It was confirmed that Chlorella sp. Cv could tolerate simulated flue gas conditions and the maximum CO2 Fixation rate was 1.2 g L−1 d−1. In a two-stage process, the biomass concentration was 2.7 g L−1 and the carbohydrate content was 68.4%. Comparative transcriptomic analysis was performed for Chlorella sp. Cv under simulated flue gas and control conditions (10% CO2). These responses against simulated flue gas uncovered the significant difference between the evolved strain and the original strain. The metabolic responses to flue gas were explored with focus on various specific genes. Upregulation of several genes related to photosynthesis, oxidative phosphorylation, CO2 Fixation, sulfur metabolism and nitrogen metabolism was beneficial for the evolved strain to tolerate the simulated flue gas. The upregulation of genes related to extracellular sulfur transport and nitrate reductase was essential to utilize the sulfate and nitrate from dissolved SOx and NOx. The results in this study are helpful to establish a new process for CO2 capture directly from industrial flue gas.

Eduardo Bittencourt Sydney - One of the best experts on this subject based on the ideXlab platform.

  • potential Carbon Dioxide Fixation by industrially important microalgae
    Bioresource Technology, 2010
    Co-Authors: Eduardo Bittencourt Sydney, Wilerson Sturm, Ashok Pandey, Christian Larroche, Julio Cesar De Carvalho, Vanete Thomazsoccol, Carlos Ricardo Soccol
    Abstract:

    abstract The present study aimed at investigating the Carbon metabolism in terms of Carbon Dioxide fixation andits destination in microalgae cultivations. To this purpose, analysis of growth parameters, media of cul-tivation, biomass composition and productivity and nutrients balance were performed. Four microalgaesuitable for mass cultivation were evaluated: Dunaliella tertiolecta SAD-13.86, Chlorella vulgaris LEB-104,Spirulina platensis LEB-52 and Botryococcus braunii SAG-30.81. Global rates of Carbon Dioxide and oxygenwere determinated by a system developed in our laboratory. B. braunii presented the highest CO 2 fixationrate, followed by S. platensis, D. tertiolecta and C. vulgaris (496.98, 318.61, 272.4 and 251.64 mg L 1 day 1 ,respectively). Carbon Dioxide fixated was mainly used for microalgal biomass production. Nitrogen, phos-phorus (calcium for D. tertiolecta), potassium and magnesium consumption rates (mg gX 1 ) were evalu-ated for the four microalgae. Biomass composition presented a predominance of proteins but also a highamount of lipids, especially in D. tertiolecta and B. braunii. 2010 Published by Elsevier Ltd.

  • Potential Carbon Dioxide Fixation by industrially important microalgae
    Bioresource Technology, 2010
    Co-Authors: Eduardo Bittencourt Sydney, João Carlos Monteiro De Carvalho, Wilerson Sturm, Vanete Thomaz-soccol, Ashok Pandey, Christian Larroche, Carlos Ricardo Soccol
    Abstract:

    The present study aimed at investigating the Carbon metabolism in terms of Carbon Dioxide Fixation and its destination in microalgae cultivations. To this purpose, analysis of growth parameters, media of cultivation, biomass composition and productivity and nutrients balance were performed. Four microalgae suitable for mass cultivation were evaluated: Dunaliella tertiolecta SAD-13.86, Chlorella vulgaris LEB-104, Spirulina platensis LEB-52 and Botryococcus braunii SAG-30.81. Global rates of Carbon Dioxide and oxygen were determinated by a system developed in our laboratory. B. braunii presented the highest CO2 Fixation rate, followed by S. platensis, D. tertiolecta and C. vulgaris (496.98, 318.61, 272.4 and 251.64 mg L-1 day-1, respectively). Carbon Dioxide fixated was mainly used for microalgal biomass production. Nitrogen, phosphorus (calcium for D. tertiolecta), potassium and magnesium consumption rates (mg gX-1) were evaluated for the four microalgae. Biomass composition presented a predominance of proteins but also a high amount of lipids, especially in D. tertiolecta and B. braunii. © 2010.

Bingtao Zhao - One of the best experts on this subject based on the ideXlab platform.

  • Carbon Dioxide Fixation and biomass production from combustion flue gas using energy microalgae
    Energy, 2015
    Co-Authors: Bingtao Zhao, Yixin Zhang, Guomin Cui
    Abstract:

    Abstract Algae-based bioenergy has been regarded as the next generation of renewable energy. To fix CO2 from flue gas and harvest algal biomass for energy conversion, three energy microalgae, Chlorella sp., Isochrysis sp. and Amphidinium carterae, were investigated in 1-L bubble column photobioreactors with an aeration of 15% CO2 at the flue-gas level. According to the potential on CO2 Fixation and biomass production, Chlorella sp. was selected as the dominant species due to its superiority to the other species, with a specific growth rate of 0.328 d−1, a biomass production rate of 0.192 gL−1 d−1 and a CO2 Fixation rate of 0.353 gL−1 d−1. Furthermore, Chlorella sp. was cultured under varied physicochemical parameters, including CO2 concentrations, aeration rates and toxic compounds (SO2, NO and Hg2+) to assess its performances. The maximum specific growth rate, biomass production rate and CO2 Fixation rate were found to be 0.372 d−1, 0.268 gL−1 d−1 and 0.492 gL−1 d−1 at a CO2 concentration of 10%; 0.375 d−1, 0.274 gL−1 d−1 and 0.503 gL−1 d−1 at an aeration rate of 0.1 vvm; and 0.328 d−1, 0.192 gL−1 d−1 and 0.353 gL−1 d−1 in the absence of toxic compounds, respectively. The results provide a basis for microalgal-based CO2 emission reduction and bioenergy utilization in pilot-scale applications.

  • process effect of microalgal Carbon Dioxide Fixation and biomass production a review
    Renewable & Sustainable Energy Reviews, 2014
    Co-Authors: Bingtao Zhao
    Abstract:

    Global warming caused by anthropogenic CO2 emission has been one of the most important issues in the fields of science, environment and even international economics and politics. To control and reduce CO2 emissions, intensive Carbon Dioxide capture and storage (CCS) technologies have been comprehensively developed for sequestration of CO2 especially from combustion flue gas.

  • process effect of microalgal Carbon Dioxide Fixation and biomass production a review
    Renewable & Sustainable Energy Reviews, 2014
    Co-Authors: Bingtao Zhao
    Abstract:

    Abstract Global warming caused by anthropogenic CO2 emission has been one of the most important issues in the fields of science, environment and even international economics and politics. To control and reduce CO2 emissions, intensive Carbon Dioxide capture and storage (CCS) technologies have been comprehensively developed for sequestration of CO2 especially from combustion flue gas. Microalgae-based CO2 biological Fixation is regarded as a potential way to not only reduce CO2 emission but also achieve energy utilization of microalgal biomass. However, in this approach culture process of microalgae plays an important role as it is directly related to the mechanism of microalgal-CO2 Fixation and characteristics of microalgal biomass production. The aim of this work is to present a state-of-the-art review on the process effect, especially on the effects of photobiochemical process, microalgal species, physicochemical process and hydrodynamic process on the performance of microalgal-CO2 Fixation and biomass production. Also, the perspectives are proposed in order to provide a positive reference on developing its fundamental research and key technology.

Yuhan Sun - One of the best experts on this subject based on the ideXlab platform.

  • adaptive evolution and Carbon Dioxide Fixation of chlorella sp in simulated flue gas
    Science of The Total Environment, 2019
    Co-Authors: Dujia Cheng, Yizhong Yuan, Chengyu Yang, Tao Tang, Quanyu Zhao, Yuhan Sun
    Abstract:

    Carbon Dioxide and other greenhouse gas emissions leads to global warming. Biological capture through microalgae is a potential approach for solving this environmental problem. It is still a technical challenge to enhance the tolerance of microalgae to flue gas if CO2 is fixed from flue gas directly. A new strain, Chlorella sp. Cv was obtained through adaptive evolution (46 cycles) against simulated flue gas (10% CO2, 200 ppm NOx and 100 ppm SOx). It was confirmed that Chlorella sp. Cv could tolerate simulated flue gas conditions and the maximum CO2 Fixation rate was 1.2 g L-1 d(-1). In a two-stage process, the biomass concentration was 2.7 g L-1 and the carbohydrate content was 68.4%. Comparative transcriptomic analysis was performed for Chlorella sp. Cv under simulated flue gas and control conditions (10% CO2). These responses against simulated flue gas uncovered the significant difference between the evolved strain and the original strain. The metabolic responses to flue gas were explored with focus on various specific genes. Upregulation of several genes related to photosynthesis, oxidative phosphorylation, CO2 Fixation, sulfur metabolism and nitrogen metabolism was beneficial for the evolved strain to tolerate the simulated flue gas. The upregulation of genes related to extracellular sulfur transport and nitrate reductase was essential to utilize the sulfate and nitrate from dissolved SOx and NOx. The results in this study are helpful to establish a new process for CO2 capture directly from industrial flue gas. (C) 2018 Elsevier B.V. All rights reserved.

  • adaptive evolution and Carbon Dioxide Fixation of chlorella sp in simulated flue gas
    Science of The Total Environment, 2019
    Co-Authors: Dujia Cheng, Yizhong Yuan, Chengyu Yang, Tao Tang, Quanyu Zhao, Yuhan Sun
    Abstract:

    Abstract Carbon Dioxide and other greenhouse gas emissions leads to global warming. Biological capture through microalgae is a potential approach for solving this environmental problem. It is still a technical challenge to enhance the tolerance of microalgae to flue gas if CO2 is fixed from flue gas directly. A new strain, Chlorella sp. Cv was obtained through adaptive evolution (46 cycles) against simulated flue gas (10% CO2, 200 ppm NOx and 100 ppm SOx). It was confirmed that Chlorella sp. Cv could tolerate simulated flue gas conditions and the maximum CO2 Fixation rate was 1.2 g L−1 d−1. In a two-stage process, the biomass concentration was 2.7 g L−1 and the carbohydrate content was 68.4%. Comparative transcriptomic analysis was performed for Chlorella sp. Cv under simulated flue gas and control conditions (10% CO2). These responses against simulated flue gas uncovered the significant difference between the evolved strain and the original strain. The metabolic responses to flue gas were explored with focus on various specific genes. Upregulation of several genes related to photosynthesis, oxidative phosphorylation, CO2 Fixation, sulfur metabolism and nitrogen metabolism was beneficial for the evolved strain to tolerate the simulated flue gas. The upregulation of genes related to extracellular sulfur transport and nitrate reductase was essential to utilize the sulfate and nitrate from dissolved SOx and NOx. The results in this study are helpful to establish a new process for CO2 capture directly from industrial flue gas.