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Downstream processing of biomass produced in aquaculture wastewater for valuable pigments from the cyanobacterium Spirulina (Arthrospira) platensis: a green and sustainable approach.

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Title Downstream processing of biomass produced in aquaculture wastewater for valuable pigments from the cyanobacterium Spirulina (Arthrospira) platensis: a green and sustainable approach.
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Creator Not Available
 
Subject Spirulina (Arthrospira) platensis, Phycoremediation, Aquaculture wastewater, Phycocyanin, Carotenoids
 
Description Not Available
Aquaculture wastewater is suitable for algal growth especially due to its ammonium and nitrate content. Therefore, the wastewater can be utilized after a few amendments for algal biomass production for the recovery of valuable pigments. In the present study, aquaculture wastewater discharged from the Pangasius culture system was utilized for the production of a commercially valuable cyanobacterium Spirulina (Arthrospira) platensis with an aim to extract economically important pigments (phycocyanin and carotenoids). The aquaculture wastewater was amended with nutrients and used as a culture medium for S. platensis. The removal of nutrients from the effluent-based medium during the culture period was also monitored. A significant increase in growth rate (0.21 day−1), biomass productivity (23.65 mg g−1 day−1), and the lowest doubling time (3.37 days) was noticed in decontaminated and amended aquaculture wastewater. The biomass produced in the wastewater showed phycocyanin content (132.45 mg g−1 DW), total carotenoids (1.26 mg g−1 DW), and protein (630 mg g−1 DW). S. platensis in aquaculture wastewater showed nutrient removal up to 97.34% NH+4-N, 71.93% NO−3-N, 95.90% NO−2-N, and 93.39% PO43−-P. The present report provides a piece of convincing evidence that S. platensis is a suitable candidate species for aquaculture wastewater utilization for cost-effective biomass production and improvement in the quality of wastewater through phycoremediation.
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Date 2023-05-16T04:05:05Z
2023-05-16T04:05:05Z
2022-08-17
 
Type Journal
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/77387
 
Language English
 
Relation Not Available;
 
Publisher Springer link