Dynamic Foam Characteristics during Cultivation of Arthrospira platensis

Kubar, Ameer Ali; Ali, Amjad; Kumar, Santosh; Huo, Shuhao; Alabbosh, Khulood Fahad; Ikram, Muhammad; Cheng, Jun

doi:10.3390/bioengineering9060257

Cited by 2 publications

(1 citation statement)

References 40 publications

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“…The microalgae were grown in a modified Zarrouk’s medium with 0.3 mol L –1 sodium bicarbonate, which was used as the sole carbon source for all of the microalgal growth during the whole cultivation period. To reduce the negative effect of forms on microalgal cultivation, 0.25‰ food-grade antifoaming agent (volume/volume) was added to the cultivations of Spirulina sp.…”

Section: Methodsmentioning

confidence: 99%

Novel Thin-Layer Fountain Photobioreactors for the High-Density Cultivation of Spirulina sp

Wang,

Hu,

et al. 2023

ACS Sustainable Chem. Eng.

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Microalgae have been considered great candidates for carbon reduction and sustainable feedstock for foods, biofuels, and biochemicals, but their production usually features low productivity, high costs, and intensive energy inputs. The thick culture layer adopted in conventional cultivation systems (5.0−30 cm) has been established as a significant reason for the above problems. In this study, a novel mixing-based thin-layer fountain photobioreactor (TLF-PBR) was developed. A fountain pump was used to pump and spray microalgal culture for mixing. The results showed that the mixing mode could support sufficient mixing to efficiently cultivate Spirulina sp. in a 50 cm-diameter TLF-PBR, with the lowest mixing time of 13.580 ± 0.522 s, the highest oxygen mass transfer coefficient of 142.555 ± 5.791 h −1 , and the highest biomass concentration of 3.118 ± 0.009 g L −1 in the 1.0 cm layer. The TLF-PBR was successfully scaled to a diameter of 1.5 m (1.766 m 2 ), with a maximum biomass density of 3.955 ± 0.037 g L −1 , which was 71.0 and 44.7% higher than that of the flat panel PBR and thin-layer cascade system, respectively. This study provides a novel approach for developing thin-layer, scalable PBRs that could support cost-effective, efficient microalgae production.

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Section: Methodsmentioning

confidence: 99%

Novel Thin-Layer Fountain Photobioreactors for the High-Density Cultivation of Spirulina sp

Wang,

Hu,

et al. 2023

ACS Sustainable Chem. Eng.

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Optimizing the Conversion of Bio-Oil from Haematococcus pluvialis to Fatty Acid Methyl Esters

Sanjurjo,

Rodríguez,

Bartolomé

et al. 2024

Bioenerg. Res.

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Haematococcus pluvialis microalgae have emerged as a prevalent source of antioxidants in cosmetics and nutritional products. Additionally, numerous researchers have posited the potential of this microalgae to produce fatty acid methyl esters (FAME). Nevertheless, the optimization of the production of FAME from H. pluvialis oil has not been investigated. In this study, the transesterification reaction of H. pluvialis bio-oil was optimized using the response surface methodology, resulting in optimal experimental conditions for an oil to methanol ratio of 1:4.17, at a temperature of 80 °C, with a reaction time of 47 min. The resulting FAME was found to not comply with the biodiesel standard in terms of the content of polyunsaturated fatty acids (6.02%), as well as kinematic viscosity (7.02 mm2/s). Further study is required to reduce these parameters in order to ensure biodiesel quality and compliance with the standard. Nevertheless, its high flash point value of 150 °C and its high thermal stability within the temperature range of 211–290 °C suggest the potential for utilization as a biolubricant.

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Dynamic Foam Characteristics during Cultivation of Arthrospira platensis

Cited by 2 publications

References 40 publications

Novel Thin-Layer Fountain Photobioreactors for the High-Density Cultivation of Spirulina sp

Novel Thin-Layer Fountain Photobioreactors for the High-Density Cultivation of Spirulina sp

Optimizing the Conversion of Bio-Oil from Haematococcus pluvialis to Fatty Acid Methyl Esters

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