Automation of pilot-scale open raceway pond: A case study of CO2-fed pH control on Spirulina biomass, protein and phycocyanin production.

Mehr, Jitendra and Ajam, Yakub Shekh and Nethravathy, M. U. and Sarada, R. and Chauhan, V. S. and Sandeep, N. Mudliar (2019) Automation of pilot-scale open raceway pond: A case study of CO2-fed pH control on Spirulina biomass, protein and phycocyanin production. Journal of CO₂ Utilization, 33. pp. 384-393.

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Abstract

Spirulina is known to produce high protein and phycocyanin of commercial importance with concomitant CO2 utilisation. The pH is one of the most important factors for cell growth, CO2 utilisation and controlling contamination. In this study, an indigenously developed automated system for Spirulina cultivation was used at pilot scale, where CO2 supply was aimed to provide carbon source and to control culture pH. Among all the studied pH (7.5 ± 0.1,8.5 ± 0.1, 9.5 ± 0.1), pH 8.5 was found to be the best where biomass productivity, CO2 bio-fixation rate, protein and phycocyanin content were noted as 72 mg L−1 d-1, 0.13 g L-1 d-1, 64%, and 14%, respectively. Though the culture at pH 9.5 experienced late CO2 feeding, it was healthy and showed almost similar metabolite content compared to pH 8.5. The pilot scale automation system developed here can be employed to enhance CO2 fed pH control based performance of Spirulina or any microalgae cultivation.

Item Type:	Article
Uncontrolled Keywords:	Spirulina Automation CO2 Phycocyanin Open raceway pond
Subjects:	500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology > 01 Algae
Divisions:	Plant Cell Biotechnology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	20 Mar 2020 08:46
Last Modified:	20 Mar 2020 08:46
URI:	http://ir.cftri.res.in/id/eprint/14237

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