Dairy Industry wastewater and stormwater energy valorization: effect of wastewater nutrients on microalgae-yeast biomass

Kumar, Vinod; Gururani, Prateek; Parveen, Afreen; Verma, Monu; Kim, Hyunook; Vlaskin, Mikhail S.; Grigоrenko, A. V.; Rindin, Kirill G.

doi:10.1007/s13399-022-02947-7

Cited by 8 publications

(2 citation statements)

References 55 publications

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“…The chemical composition of the synthesized NPs was determined using FTIR spectra at 400-4000 cm À1 (PerkinElmer, MA, USA). 20,21 Using a high-resolution transmission electron microscope (HR-TEM; JEOL-100SX), the average size and morphological characteristics of the produced NPs were examined.…”

Section: Structural Characterization Of Hmbe-agnpsmentioning

confidence: 99%

A phyco-nanobionics biohybrid system for increased carotenoid accumulation in C. sorokiniana UUIND6

Bisht¹,

Jaiswal²,

Parveen³

et al. 2023

J. Mater. Chem. B

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Section: Structural Characterization Of Hmbe-agnpsmentioning

confidence: 99%

A phyco-nanobionics biohybrid system for increased carotenoid accumulation in C. sorokiniana UUIND6

Bisht¹,

Jaiswal²,

Parveen³

et al. 2023

J. Mater. Chem. B

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“…Thus, using similar principles, several studies have employed microorganisms to decontaminate dairy e uent before incorporating it into a synthesis of lipids and biofuels. The parameters of wastewater and the types of microorganisms present in uence the removal of nutrients, the duration of culture, biomass productivity, and the generation of various products [5].…”

Section: Introductionmentioning

confidence: 99%

Valorization of Dairy Wastewater for the Production of Lipids, Carotenoids, and β-Carotene in Rhodotorula mucilaginosa

Gedela,

Dasu,

Pakshirajan

2024

Preprint

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One of the leading causes of environmental pollution in India is the waste generated from the dairy sector. Significant amounts of organic and inorganic components are characteristics of the wastewater generated by this industry. To address this problem, sustainable and economical methods of lowering its ecological footprint are obligatory. The present study uses raw dairy wastewater (RDW) to synthesise lipids and carotenoids from Rhodotorula mucilaginosa. Batch and fed-batch experiments were used to scale up the process after shake flask experiments using mineral salt media with RDW. In batch fermentation studies with only RDW resulted in the generation of lipid content, carotenoids, and β-carotene at values of 52.02 ± 1.52 (% w/w), 30.63 ± 0.15 µg.g-1, and 12.42 ± 0.06 µg.g-1. Furthermore, the observed chemical oxygen demand (COD) removal efficiency was approximately 48.5±0.24%. Additionally, intriguing findings were obtained when RDW was supplemented with 15gL-1 of sodium acetate, increasing the lipid content (% w/w), carotenoids, and β-carotene levels by 66.3 ± 0.3 (% w/w), 64.0 ± 0.32 µg.g-1, and 19.7 ± 0.09 µg.g-1, respectively. The maximum chemical oxygen demand (COD) removal efficiency was around 62.3±0.31%. When fed-batch reactor studies were conducted with RDW while maintaining 15gL-1 sodium acetate, notable improvements over batch reactor studies were observed. The experimental outcomes revealed a lipid content of 72.14 ± 0.3 (% w/w), carotenoid levels of 67.16 ± 0.3 µg.g-1, β-Carotene content of 31.7± 0.15 µg.g-1, and a chemical oxygen demand (COD) removal efficiency of approximately 78± 0.3%. A comprehensive study of the lipid samples using gas chromatography revealed a wide range of fatty acid compositions. This thorough characterization underscores their significant potential for utilization in biodiesel production.

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Biotreatment of Industrial Wastewater using Microalgae: A Tool for a Sustainable Bioeconomy

Elangovan,

Detchanamurthy,

Senthil Kumar

et al. 2023

Mol Biotechnol

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Dairy Industry wastewater and stormwater energy valorization: effect of wastewater nutrients on microalgae-yeast biomass

Cited by 8 publications

References 55 publications

A phyco-nanobionics biohybrid system for increased carotenoid accumulation in C. sorokiniana UUIND6

A phyco-nanobionics biohybrid system for increased carotenoid accumulation in C. sorokiniana UUIND6

Valorization of Dairy Wastewater for the Production of Lipids, Carotenoids, and β-Carotene in Rhodotorula mucilaginosa

Biotreatment of Industrial Wastewater using Microalgae: A Tool for a Sustainable Bioeconomy

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