Production and nutritive value of Spirulina platensis in reduced cost media

Madkour, Fedekar F.; Kamil, Abd El-Wahab; Nasr, Hoda Shafik

doi:10.1016/j.ejar.2012.09.003

Cited by 177 publications

(151 citation statements)

References 24 publications

Supporting

Mentioning

126

Contrasting

Unclassified

Order By: Relevance

“…However, these results were obtained varying the concentration of nitrate without simultaneous variation of bicarbonate and irradiance, unlike the experimental conditions used in the present study, in which 3 simultaneous parameters, which are important for cyanobacteria growth as sources of carbon, nitrogen, and irradiance, varied simultaneously. Madkour et al (2012) proposed means to reduce the cost of Zarrouk medium containing superphosphate, commercial sodium bicarbonate, potassium chloride, and crude sea salt by using 10, 20, 30, and 40% of nitrogen concentration in the Zarrouk medium, obtained using ammonium nitrate or urea. The maximum biomass, chlorophyll, and protein production was obtained in the medium with 30% ammonium nitrate (0.813 ± 0.018 g/l, 0.0685 ± 0.0024 mg/L and 52.62%), values similar to those found in Zarrouk medium.…”

Section: Biomass Productionmentioning

confidence: 99%

Biomass production by Arthrospira platensis under different culture conditions

Castro¹,

Rizzo²,

Passos³

et al. 2015

Food Sci. Technol (Campinas)

View full text Add to dashboard Cite

In biotechnological processes, the culture media components are responsible for high costs and exert a strong influence on the cyanobacteria behavior. The objective of this study was to evaluate the Arthrospira platensis growth potential for biomass production under different cultivation conditions using an experimental design. Three factors that are important for cyanobacteria growth were evaluated: sodium bicarbonate (9 to 18 g/l), sodium nitrate (1.25 to 2.5 g/l), and irradiance (20 to 120 µmol photons/ m 2 .s -1). The results showed that the concentration of NaND 3 in the A. platensis medium can be reduced, resulting in increased concentrations of biomass produced. There was a higher biomass production due to the increase in the concentration of NaHCD 3 and irradiance, mainly when these two factors varied tending towards the highest values studied. The results demonstrate the potential to produce Arthrospira platensis with lower costs and effluent generation without affecting cultivation performance.

show abstract

Section: Biomass Productionmentioning

confidence: 99%

Biomass production by Arthrospira platensis under different culture conditions

Castro¹,

Rizzo²,

Passos³

et al. 2015

Food Sci. Technol (Campinas)

View full text Add to dashboard Cite

show abstract

“…Spirulina media contain generally high concentrations of nutrients which impact their cost. Media with reduced cost can be as effective as ZM in terms of final biomass concentration, chlorophyll and protein content [16]. Reduction of the medium cost by dilution with ultrapure water was then tested.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Arthrospira platensis (Spirulina) Growth: From Laboratory Scale to Pilot Scale

et al. 2017

View full text Add to dashboard Cite

Arthrospira platensis (Spirulina) is the most cultivated microalga worldwide. Improving its cultivation in terms of biomass productivity, quality, or production cost could significantly impact the Spirulina industry. The objectives of this paper were defined as to contribute to this goal. Spirulina biomass productivity was investigated through medium choice. A modified Zarrouk's medium was selected as it gave higher final dry weights and longer sustained growth than Hiri's and Jourdan's media. Then, in order to reduce Spirulina production cost, modified Zarrouk's medium was rationalized by testing different dilutions. It was found that modified Zarrouk's medium could be diluted up to five times without impacting the growth rates in a 28-days batch cultivation. Higher dry weights were even observed after 21 days of batch cultivation (1.21 g/L for 20%-modified Zarrouk's medium in comparison to 0.84 g/L for modified Zarrouk's medium). Iron uptake was then investigated as one of the major contributors to Spirulina nutritional quality. An increase in iron content was obtained by replacing iron sulfate by iron EDTA at a concentration of 10 mg Fe /L (2.11 ± 0.13 mg Fe /g biomass for EDTA-FeNa,3H 2 O at 10 mg Fe /L compared to 0.18 ± 0.13 for FeSO 4 ,6H 2 O at 2 mg Fe /L). Impact of light intensity on Spirulina biomass productivity was also investigated in a 2 L Photobioreactor (PBR). Specific growth rates were calculated for Photosynthetically Photon Flux Densities (PPFD) from 85 to 430 µmol/m 2 /s. At 430 µmol/m 2 /s, photoinhibition was not observed and the specific growth rate was maximum (0.12/day). Finally, a 40-day cultivation experiment was conducted in a 1000 L PBR giving a maximum daily areal productivity of 58.4 g/m 2 /day. A techno-economic analysis gave production cost two to 20 times higher for PBR (from 18.71 to 74.29 €/kg) than for open ponds (from 3.86 to 9.59 €/kg) depending on Spirulina productivity.

show abstract

“…It has high content of protein (up to 70 %), along with high amount of essential fatty acids, essential amino acids, minerals, vitamins, pigments, and polysaccharides (Madkour et al 2012). It has high content of protein (up to 70 %), along with high amount of essential fatty acids, essential amino acids, minerals, vitamins, pigments, and polysaccharides (Madkour et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Biology Education and Research in a Changing Planet

Daniel¹

2015

View full text Add to dashboard Cite

Production and nutritive value of Spirulina platensis in reduced cost media

Cited by 177 publications

References 24 publications

Biomass production by Arthrospira platensis under different culture conditions

Biomass production by Arthrospira platensis under different culture conditions

Optimization of Arthrospira platensis (Spirulina) Growth: From Laboratory Scale to Pilot Scale

Biology Education and Research in a Changing Planet

Contact Info

Product

Resources

About