Central composite design for simultaneously optimizing biomass and lutein production by a mixotrophic Chlorella sorokiniana TH01

T., Cam Van; Nguyen, Nham Tuat T.; Pham, Mai; Pham, Thanh Yen T.; Ngo, Van Gioi; Le, Truong Giang; Tran, Thuan Dang

doi:10.1016/j.bej.2021.108231

Cited by 14 publications

(4 citation statements)

References 52 publications

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“…Moreover, Co detected in Fe 3 O 4 ‐C material was attributed to Co(NO 3 ) 2 ·6H 2 O presented in BG‐11 medium which was used for cultivation of the microalgal. [ 46 ]…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, Co detected in Fe3O4-C material was attributed to Co(NO3)2•6H2O presented in BG-11 medium which was used for cultivation of the microalgal. [46] SEM images indicated that Fe3O4 (Figure S4-e) and Fe3O4@SiO2 (Figure S4-f) were spherical shapes. The coverage of SiO2 on the surface of Fe3O4 nanoparticles shown in SEM images displayed that the particle morphologies were almost uniform.…”

Section: Adsorption Isotherm and Thermodynamicsmentioning

confidence: 99%

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Recovery of Chlorella biomass using Fe₃O₄ and Fe₃O₄@SiO₂ magnetic nanoparticles: isotherm and thermodynamic characteristics of adsorption

Van,

Van Toan,

Dung

et al. 2023

Vietnam Journal of Chemistry

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Harvesting microalgae by centrifugation and filtration is very costly, affecting technical and economical feasibility of downstream processing of algal biomas to bioproducts. Flocculation is a potential technique for recovery of algae biomass. Particularly, flocculation using magnetic nanoparticles offers high separation efficiency due to their high surface area and magnetic properties. In this work, the synthesized magnetic nanoparticles including Fe3O4 and Fe3O4@SiO2 were used to harvest C. sorokiniana TH01 from aqueous suspension. The effects of pH, adsorbent dosage, algal biomass concentration, temperature and reaction time on harvesting performance were investigated. It was revealed that the optimal C. sorokiniana TH01 harvesting conditions for Fe3O4 were pH of 5, adsorbent dosage of 0.5 g/L, biomass concentration of 2‐2.5 g/L, temperature 25oC and reaction time 20‐30 min. For Fe3O4@SiO2, the optimal conditions were pH of 7, adsorbent dosage of 0.6 g/L, with the same biomass concentration, temperature and reaction time as Fe3O4. Under the optimal conditions, Fe3O4 and Fe3O4@SiO2 can be regenerated up to three cycles with harvesting efficiency till remained over 55%. Adsorption of C. sorokiniana TH01 on Fe3O4 and Fe3O4@SiO2 exhibited the best fitness with Langmuir isortherm with R2 and maximal adsorption capacity estimated of 0.995 and 6.55 g/g and 0.9971 and 9.53 g/g, respectively. Thermodynamics study revealed that an adsorption of C. sorokiniana TH01 on Fe3O4 and Fe3O4@SiO2 was exothermic process. Furthermore, XRD, EDS, SEM, TGA and FT‐IR data confirmed the successful binding of microalgae cells on surfaces of Fe3O4 and Fe3O4@SiO2. The super‐magnetization intensities (> 22 emu/g) of the synthesized materials demonstrated an excellent separation capability with external magnetic devices.

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“…Moreover, Co detected in Fe 3 O 4 ‐C material was attributed to Co(NO 3 ) 2 ·6H 2 O presented in BG‐11 medium which was used for cultivation of the microalgal. [ 46 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Adsorption Isotherm and Thermodynamicsmentioning

confidence: 99%

Recovery of Chlorella biomass using Fe₃O₄ and Fe₃O₄@SiO₂ magnetic nanoparticles: isotherm and thermodynamic characteristics of adsorption

Van,

Van Toan,

Dung

et al. 2023

Vietnam Journal of Chemistry

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“…Xanthophyll is a natural carotenoid synthesized only by plants ( Do et al., 2022 ). Previous studies have demonstrated that xanthophyll is an effective functional compound with many biological properties that benefit the health and meat quality of animals ( Bédécarrats and Leeson, 2006 ; Rajput et al., 2013 ; Xu et al., 2014 ; Yuan et al., 2021 ; Yang et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Dietary xanthophyll improved growth, antioxidant, pigmentation and meat quality in the southern catfish (Silurus soldatovi meridionalis Chen)

He¹,

Geng²,

Qin³

et al. 2023

Animal Nutrition

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“…Lutein, as an important carotenoid, is widely available across diverse plants and microalgae [4]. It acts as an accessory pigment in chloroplasts, playing an indispensable part in light harvesting, energy transfer, and protecting photosystems from oxidative damage during high light stress [5,6].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Lutein Production from Chlorella sorokiniana NIES-2168 by Using Aquaculture Wastewater with Two-Stage Cultivation Strategies

Yin,

Miao

2023

Water

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Unnecessary discharge of nutrient-rich aquaculture wastewater is a significant threat to the environment, exacerbating massive resource wasting worldwide. Microalgae-based circular economy strategies utilize atmospheric CO2 and aquaculture wastewater nutrients and convert them into valuable compounds. Lutein, a natural pigment, is a nutritional supplement for eye protection, anti-cancer and anti-inflammatory effects, and other health benefits. It is widely utilized in the food and pharmaceutical industries. The primary purpose of this study is to reuse aquaculture wastewater to grow microalgae and optimize conditions to achieve a high yield of lutein as well as the removal of nutrients from wastewater. When cultured in 1.0× BG11 nutrient-added aquaculture wastewater and aerated using 2% CO2, the biomass concentration and lutein content of Chlorella sorokiniana NIES-2168 increased to 1.78 g L−1 and 7.43 mg g−1, respectively. A two-stage culture strategy further increased the lutein content and yield of microalgae. The highest lutein content of 13.95 mg g−1 and lutein productivity of 3.63 mg L−1 d−1 in the second stage aligned with other phototrophic microalgae currently used for lutein production. C. sorokiniana NIES-2168 also showed exceptional nitrogen and phosphorus removal efficiency, with nitrate and phosphate removal rates reaching 96.07% and 96.75% during the two-stage culture process.

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Central composite design for simultaneously optimizing biomass and lutein production by a mixotrophic Chlorella sorokiniana TH01

Cited by 14 publications

References 52 publications

Recovery of Chlorella biomass using Fe₃O₄ and Fe₃O₄@SiO₂ magnetic nanoparticles: isotherm and thermodynamic characteristics of adsorption

Recovery of Chlorella biomass using Fe₃O₄ and Fe₃O₄@SiO₂ magnetic nanoparticles: isotherm and thermodynamic characteristics of adsorption

Dietary xanthophyll improved growth, antioxidant, pigmentation and meat quality in the southern catfish (Silurus soldatovi meridionalis Chen)

Sustainable Lutein Production from Chlorella sorokiniana NIES-2168 by Using Aquaculture Wastewater with Two-Stage Cultivation Strategies

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Central composite design for simultaneously optimizing biomass and lutein production by a mixotrophic Chlorella sorokiniana TH01

Cited by 14 publications

References 52 publications

Recovery of Chlorella biomass using Fe3O4 and Fe3O4@SiO2 magnetic nanoparticles: isotherm and thermodynamic characteristics of adsorption

Recovery of Chlorella biomass using Fe3O4 and Fe3O4@SiO2 magnetic nanoparticles: isotherm and thermodynamic characteristics of adsorption

Dietary xanthophyll improved growth, antioxidant, pigmentation and meat quality in the southern catfish (Silurus soldatovi meridionalis Chen)

Sustainable Lutein Production from Chlorella sorokiniana NIES-2168 by Using Aquaculture Wastewater with Two-Stage Cultivation Strategies

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Product

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Recovery of Chlorella biomass using Fe₃O₄ and Fe₃O₄@SiO₂ magnetic nanoparticles: isotherm and thermodynamic characteristics of adsorption

Recovery of Chlorella biomass using Fe₃O₄ and Fe₃O₄@SiO₂ magnetic nanoparticles: isotherm and thermodynamic characteristics of adsorption