Spirulina platensis: process optimization to obtain biomass

Moraes, Iracema de Oliveira; Arruda, Regina de Oliveira Moraes; Maresca, Natália Rocha; Antunes, Aline de Oliveira; Moraes, Rodrigo de Oliveira

doi:10.1590/s0101-20612013000500026

Cited by 10 publications

(2 citation statements)

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“…In this study, the maximum biomass and phycocyanin content was obtained at the agitation speed of 120 rpm. The results found are similar to those found by Moraes et al where maximum biomass was obtained with 120 rpm (27). The experiments with 153 rpm agitation speed (run no.18) showed lower biomass and phycocyanin content than the cultures grown under the agitation of 86.3 rpm.…”

Section: Discussionsupporting

confidence: 90%

Enhancement of biomass and phycocyanin content of Spirulina platensis

Khazi¹

2018

Front Biosci

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Response surface methodology (RSM) based on the 2 factorial central composite design (CCD) was employed to evaluate optimum culture conditions (temperature, light irradiance and agitation) to enhance biomass and phycocyanin content of . The predicted maximum biomass and phycocyanin content by RSM was 1.06 g L and 107 mg L, respectively, whereas maximum biomass and phycocyanin content of 1.32 g L and 127 mg L was obtained in the validation experiments under optimized conditions after 10 days of cultivation. Further, influence of optimized conditions (temperature 33±2 ºC, light irradiance 44 μmol photons m s and a flow rate of 2.5 L min) on growth and phycocyanin content of in 7L Panel photobioreactor (PPBR) cultivation was investigated. A 15 days production was carried out and it was observed that a maximum biomass yield of 2.42 g L with a specific growth rate 0.202 day and phycocyanin content of 228 mg L was obtained in the PPBR. The optimum culture conditions obtained through response surface methodology were successfully determined to maximize the biomass and phycocyanin.

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Section: Discussionsupporting

confidence: 90%

Enhancement of biomass and phycocyanin content of Spirulina platensis

Khazi¹

2018

Front Biosci

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“…It is difficult to define which medium is the best since results are contradictory and seem to differ not only between media but also between strains. The biomass yield obtained is most likely dependent upon multiple factors like light intensity, nitrogen, and micronutrients availability, stirring, and pH (Converti et al, 2006 ; Ravelonandro et al, 2011 ; Moraes et al, 2013 ).…”

Section: Cultivation Methodsmentioning

confidence: 99%

Edible Cyanobacterial Genus Arthrospira: Actual State of the Art in Cultivation Methods, Genetics, and Application in Medicine

et al. 2017

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The cyanobacterial genus Arthrospira appears very conserved and has been divided into five main genetic clusters on the basis of molecular taxonomy markers. Genetic studies of seven Arthrospira strains, including genome sequencing, have enabled a better understanding of those photosynthetic prokaryotes. Even though genetic manipulations have not yet been performed with success, many genomic and proteomic features such as stress adaptation, nitrogen fixation, or biofuel production have been characterized. Many of above-mentioned studies aimed to optimize the cultivation conditions. Factors like the light intensity and quality, the nitrogen source, or different modes of growth (auto-, hetero-, or mixotrophic) have been studied in detail. The scaling-up of the biomass production using photobioreactors, either closed or open, was also investigated to increase the production of useful compounds. The richness of nutrients contained in the genus Arthrospira can be used for promising applications in the biomedical domain. Ingredients such as the calcium spirulan, immulina, C-phycocyanin, and γ-linolenic acid (GLA) show a strong biological activity. Recently, its use in the fight against cancer cells was documented in many publications. The health-promoting action of “Spirulina” has been demonstrated in the case of cardiovascular diseases and age-related conditions. Some compounds also have potent immunomodulatory properties, promoting the growth of beneficial gut microflora, acting as antimicrobial and antiviral. Products derived from Arthrospira were shown to successfully replace biomaterial scaffolds in regenerative medicine. Supplementation with the cyanobacterium also improves the health of livestock and quality of the products of animal origin. They were also used in cosmetic preparations.

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