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Enhancing phycocyanin yield from Spirulina sp. under salt stress using various extraction methods

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Abstract

Phycocyanin, a blue-coloured pigment, predominantly found and derived from Spirulina sp., has gained researchers' interest due to its vibrant hues and other attractive properties like antioxidant and anti-microbial. However, the lack of reliable and sustainable phycocyanin extraction strategies without compromising the quality has hindered the scaling up of its production processes for commercial purposes. Here in this study, phycocyanin was extracted from wet and dry biomass Spirulina sp., using three different physical cell disruption methods (ultrasonication, homogenization, and freeze–thaw cycles) combined with two different buffers (phosphate buffer and acetate buffer) and water (as control). The result showed that the freeze–thaw method combined with acetate buffer produced the highest yield (25.013 ± 2.572 mg/100 mg) with a purity ratio of 0.806 ± 0.079. Furthermore, when subjected to 30% w/v salt stress, 1.9 times higher phycocyanin yield with a purity ratio of 1.402 ± 0.609 was achieved using the previously optimized extraction method.

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All data generated or analyzed during this study are included in this published article [and its supplementary information files].

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Acknowledgements

The authors thank the Department of Biotechnology and Medical Engineering of the National Institute of Technology Rourkela for providing the research facility.

Funding

The research was financially sponsored by Department of Science and Technology, Government of India (DST, GOI) under Entrepreneurship in Residence (EIR) (Fellow letter No.:KIIT-TBI/INIDHI-EIR/10/09).

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Kerthika Devi Athiyappan: conceptualization, methodology, investigation, data curation, writing—original draft; Rayanee Chaudhuri: conceptualization, methodology, investigation, data curation, review & editing; Balasubramanian Paramasivan: review & editing, supervision, final approval.

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Correspondence to Paramasivan Balasubramanian.

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The authors declare that they have no known competingfinancial interests or personal relationships that could have appearedto influence the work reported in this paper.

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Communicated by Yusuf Akhter.

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Athiyappan, K.D., Chaudhuri, R. & Balasubramanian, P. Enhancing phycocyanin yield from Spirulina sp. under salt stress using various extraction methods. Arch Microbiol 206, 258 (2024). https://doi.org/10.1007/s00203-024-03968-8

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  • DOI: https://doi.org/10.1007/s00203-024-03968-8

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