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Ashok V, Shriwastav A, Bose P, Gupta SK. Phycoremediation of wastewater using algal-bacterial photobioreactor: Effect of nutrient load and light intensity. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.biteb.2019.100205] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Low-cost optical sensor to automatically monitor and control biomass concentration in microalgal cultivation. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.03.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Hwang JH, Rittmann BE. Effect of permeate recycling and light intensity on growth kinetics of Synechocystis sp. PCC 6803. ALGAL RES 2017. [DOI: 10.1016/j.algal.2017.09.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Nguyen BT, Rittmann BE. Effects of inorganic carbon and pH on growth kinetics of Synechocystis sp. PCC 6803. ALGAL RES 2016. [DOI: 10.1016/j.algal.2016.03.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kim HW, Cheng J, Rittmann BE. Direct membrane-carbonation photobioreactor producing photoautotrophic biomass via carbon dioxide transfer and nutrient removal. BIORESOURCE TECHNOLOGY 2016; 204:32-37. [PMID: 26771923 DOI: 10.1016/j.biortech.2015.12.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 12/19/2015] [Accepted: 12/21/2015] [Indexed: 06/05/2023]
Abstract
An advanced-material photobioreactor, the direct membrane-carbonation photobioreactor (DMCPBR), was tested to investigate the impact of directly submerging a membrane carbonation (MC) module of hollow-fiber membranes inside the photobioreactor. Results demonstrate that the DMCPBR utilized over 90% of the supplied CO2 by matching the CO2 flux to the C demand of photoautotrophic biomass growth. The surface area of the submerged MC module was the key to control CO2 delivery and biomass productivity. Tracking the fate of supplied CO2 explained how the DMCPBR reduced loss of gaseous CO2 while matching the inorganic carbon (IC) demand to its supply. Accurate fate analysis required that the biomass-associated C include soluble microbial products as a sink for captured CO2. With the CO2 supply matched to the photosynthetic demand, light attenuation limited the rate microalgal photosynthesis. The DMCPBR presents an opportunity to improve CO2-deliver efficiency and make microalgae a more effective strategy for C-neutral resource recovery.
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Affiliation(s)
- Hyun-Woo Kim
- Department of Environmental Engineering, Soil Environment Research Center, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 54896, Republic of Korea.
| | - Jing Cheng
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Bruce E Rittmann
- Swette Center for Environmental Biotechnology, The Biodesign Institute at Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA
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Paliwal C, Pancha I, Ghosh T, Maurya R, Chokshi K, Vamsi Bharadwaj SV, Ram S, Mishra S. Selective carotenoid accumulation by varying nutrient media and salinity in Synechocystis sp. CCNM 2501. BIORESOURCE TECHNOLOGY 2015; 197:363-8. [PMID: 26344244 DOI: 10.1016/j.biortech.2015.08.122] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 08/25/2015] [Accepted: 08/27/2015] [Indexed: 05/22/2023]
Abstract
Nutrients are the deciding factors in the biological production of bioactive compounds. Various growth media like BG11, Zarrouk's and Chu's 10 were studied for carotenoid production in Synechocystis sp. CCNM 2501. Maximum carotenoid content (dry weight basis) was found in Zarrouk's medium (ZM, 7.99mgg(-1)) followed by BG11 (5.13mgg(-1)). Echinenone content was 4 times higher in ZM (3.81mgg(-1)) as compared to BG11 (0.95mgg(-1)) and Chu's 10 (0.77mgg(-1)). Being an economical medium, BG11 was selected for carotenoid production. Further, increase in salinity from 0 to 0.2M in BG11 medium increases total carotenoid content from 5.82 to 7.05mgg(-1) and later it declines to 6.23mgg(-1) (1M). 3 times more β-carotene is produced at 1M salinity as compared to control BG11. The variation in carotenoid composition with change in nutrients/salinity can be a good strategy to enhance certain targeted carotenoids.
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Affiliation(s)
- Chetan Paliwal
- Division of Salt & Marine Chemicals, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Central Salt and Marine Chemicals Research Institute Premises, Bhavnagar 364002, India
| | - Imran Pancha
- Division of Salt & Marine Chemicals, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Central Salt and Marine Chemicals Research Institute Premises, Bhavnagar 364002, India
| | - Tonmoy Ghosh
- Division of Salt & Marine Chemicals, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Central Salt and Marine Chemicals Research Institute Premises, Bhavnagar 364002, India
| | - Rahulkumar Maurya
- Division of Salt & Marine Chemicals, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Central Salt and Marine Chemicals Research Institute Premises, Bhavnagar 364002, India
| | - Kaumeel Chokshi
- Division of Salt & Marine Chemicals, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Central Salt and Marine Chemicals Research Institute Premises, Bhavnagar 364002, India
| | - S V Vamsi Bharadwaj
- Division of Salt & Marine Chemicals, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Central Salt and Marine Chemicals Research Institute Premises, Bhavnagar 364002, India
| | - Shristi Ram
- Division of Salt & Marine Chemicals, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Central Salt and Marine Chemicals Research Institute Premises, Bhavnagar 364002, India
| | - Sandhya Mishra
- Division of Salt & Marine Chemicals, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Central Salt and Marine Chemicals Research Institute Premises, Bhavnagar 364002, India.
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Miranda AF, Taha M, Wrede D, Morrison P, Ball AS, Stevenson T, Mouradov A. Lipid production in association of filamentous fungi with genetically modified cyanobacterial cells. BIOTECHNOLOGY FOR BIOFUELS 2015; 8:179. [PMID: 26550031 PMCID: PMC4635583 DOI: 10.1186/s13068-015-0364-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 10/22/2015] [Indexed: 05/22/2023]
Abstract
BACKGROUND Numerous strategies have evolved recently for the generation of genetically modified or synthetic microalgae and cyanobacteria designed for production of ethanol, biodiesel and other fuels. In spite of their obvious attractiveness there are still a number of challenges that can affect their economic viability: the high costs associated with (1) harvesting, which can account for up to 50 % of the total biofuel's cost, (2) nutrients supply and (3) oil extraction. Fungal-assisted bio-flocculation of microalgae is gaining increasing attention due to its high efficiency, no need for added chemicals and low energy inputs. The implementation of renewable alternative carbon, nitrogen and phosphorus sources from agricultural wastes and wastewaters for growing algae and fungi makes this strategy economically attractive. RESULTS This work demonstrates that the filamentous fungi, Aspergillus fumigatus can efficiently flocculate the unicellular cyanobacteria Synechocystis PCC 6803 and its genetically modified derivatives that have been altered to enable secretion of free fatty acids into growth media. Secreted free fatty acids are potentially used by fungal cells as a carbon source for growth and ex-novo production of lipids. For most of genetically modified strains the total lipid yields extracted from the fungal-cyanobacterial pellets were found to be higher than additive yields of lipids and total free fatty acids produced by fungal and Synechocystis components when grown in mono-cultures. The synergistic effect observed in fungal-Synechocystis associations was also found in bioremediation rates when animal husbandry wastewater was used an alternative source of nitrogen and phosphorus. CONCLUSION Fungal assisted flocculation can complement and assist in large scale biofuel production from wild-type and genetically modified Synechocystis PCC 6803 strains by (1) efficient harvesting of cyanobacterial cells and (2) producing of high yields of lipids accumulated in fungal-cyanobacterial pellets.
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Affiliation(s)
- Ana F. Miranda
- School of Applied Sciences, Royal Melbourne Institute of Technology University, Bundoora, VIC 3083 Australia
| | - Mohamed Taha
- School of Applied Sciences, Royal Melbourne Institute of Technology University, Bundoora, VIC 3083 Australia
| | - Digby Wrede
- School of Applied Sciences, Royal Melbourne Institute of Technology University, Bundoora, VIC 3083 Australia
| | - Paul Morrison
- School of Applied Sciences, Royal Melbourne Institute of Technology University, Bundoora, VIC 3083 Australia
| | - Andrew S. Ball
- School of Applied Sciences, Royal Melbourne Institute of Technology University, Bundoora, VIC 3083 Australia
| | - Trevor Stevenson
- School of Applied Sciences, Royal Melbourne Institute of Technology University, Bundoora, VIC 3083 Australia
| | - Aidyn Mouradov
- School of Applied Sciences, Royal Melbourne Institute of Technology University, Bundoora, VIC 3083 Australia
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Biotransformation of geniposide by Synechocystis sp. PCC 6803 into genipin and its inhibitory effects on BEL-7402, Escherichia coli, and cyanobacteria. ANN MICROBIOL 2014. [DOI: 10.1007/s13213-014-0968-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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