Biomass productivity of <i>Scenedesmus dimorphus</i> (Chlorophyceae) was improved by using an open pond–photobioreactor hybrid system

Wen, Liu; Chen, Yu; Wang, Junfeng; Liu, Tianzhong

doi:10.1080/09670262.2018.1519601

Cited by 23 publications

(5 citation statements)

References 34 publications

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“…It has been reported that average areal biomass productivity in HCS is higher than the non-hybrid systems. It is 46 to 74% higher than open systems and 12.5% enhancement of biomass than PBRs (Liu et al 2018 ; Tan et al 2017b ). HCS can be considered as a better approach for monoculture biomass production of oleaginous microalgae.…”

Section: Biorefinery Of Food Industry Wastewater For Production Of Va...mentioning

confidence: 99%

Sustainable microalgal biomass production in food industry wastewater for low-cost biorefinery products: a review

et al. 2022

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Microalgae are recognized as cell factories enriched with biochemicals suitable as feedstock for bio-energy, food, feed, pharmaceuticals, and nutraceuticals applications. The industrial application of microalgae is challenging due to hurdles associated with mass cultivation and biomass recovery. The scale-up production of microalgal biomass in freshwater is not a sustainable solution due to the projected increase of freshwater demands in the coming years. Microalgae cultivation in wastewater is encouraged in recent years for sustainable bioeconomy from biorefinery processes. Wastewater from the food industry is a less-toxic growth medium for microalgal biomass production. Traditional wastewater treatment and management processes are expensive; hence it is highly relevant to use low-cost wastewater treatment processes with revenue generation through different products. Microalgae are accepted as potential biocatalysts for the bioremediation of wastewater. Microalgae based purification of wastewater technology could be a universal alternative solution for the recovery of resources from wastewater for low-cost biomass feedstock for industry. This review highlights the importance of microalgal biomass production in food processing wastewater, their characteristics, and different microalgal cultivation methods, followed by nutrient absorption mechanisms. Towards the end of the review, different microalgae biomass harvesting processes with biorefinery products, and void gaps that tend to hinder the biomass production with future perspectives will be intended. Thus, the review could claim to be valuable for sustainable microalgae biomass production for eco-friendly bioproduct conversions. Graphical abstract

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Section: Biorefinery Of Food Industry Wastewater For Production Of Va...mentioning

confidence: 99%

Sustainable microalgal biomass production in food industry wastewater for low-cost biorefinery products: a review

et al. 2022

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“…Open ponds and photobioreactors (closed ponds) are widely used for culturing microalgae. The better-controlled cultivation system, higher surfaceto-value ratio, and efficient nutrient usage made the photobioreactor an excellent method for higher biomass productivity of S. dimorphus compared to economically viable open pond methods 12 . S. dimorphus cultured in the flask with propylene carbonate for CO 2 consumption enhanced 63% biomass production and reduced by 71% CO 2 when cultivated in an air-lift photobioreactor with polyethylene glycol dimethyl ether 13 .…”

Section: Novel Photobioreactor Design For S Dimorphusmentioning

confidence: 99%

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2023

IJPSR

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Scenedesmus dimorphus isone of the widely exploited microalgae in several arenas of science, such as in food, nutraceuticals, agriculture, and pharmaceutical industries due to its high nutritional content and bioactivities. The present study designed a novel, cost-effective, eco-friendly, easy-to-operate and rectangular photobioreactor using glass material. Photobioreactor was provided with monochromatic LED light of 3000, 5000, 10,000 and 15,000 lux, agitation, and aeration facility. The effect of inoculum concentration, pH, temperature, and light intensity on the growth of S. dimorphus was evaluated in a novel photobioreactor. Finally, to convert dairy waste into valuable bioresources, dairy waste's effect on microalgae growth was investigated in an optimized condition using a novel photobioreactor. The optimum inoculum concentration to obtain the highest growth of S. dimorphus was 1-2x10 7 cells/ml in proteose peptone medium (pH 6.8) at 20ºC with photoperiodicity of Dark/Light (D/L) 12/12h and 12,000 lux.In similar experimental conditions, S. dimorphus revealed maximum growth at pH 7.0 and the optimum light intensity was 15,000lux.Growth temperature optimization in optimum conditions with D/L 12/12h indicated significant growth at 20ºC. The dairy waste at 50% resulted in the highest growth of S. dimorphusin optimum conditions. The growth of S. dimorphus was increased with increased incubation days indicating the highest growth on the 28 th day. Therefore, it is inferred that optimum physical parameters and nutrient-rich dairy waste play a significant role in enhancing the growth of S. dimorphus, which is extensively used in various fields of science. INTRODUCTION:As a consequence of the Global population explosion in the 1950s, such as poverty, famine, and migration, food production remarkably increased after that to fulfill the need of the growing population 1 . Though we have become self-sufficient regarding food needs, lack of nutrients in our daily life is a big concern.

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“…Hybrid systems have shown higher lipid and biomass productivity when compared to open systems [ 41 , 42 , 43 , 44 ], and can therefore be considered promising for large-scale cultivation. However, techno-economic assessments are necessary to clarify their feasibility [ 42 ].…”

Section: Microalgal Production: Open X Closed Systemsmentioning

confidence: 99%

Development of Microalgae Biodiesel: Current Status and Perspectives

et al. 2022

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Microalgae are regarded as a promising source of biodiesel. In contrast with conventional crops currently used to produce commercial biodiesel, microalgae can be cultivated on non-arable land, besides having a higher growth rate and productivity. However, microalgal biodiesel is not yet regarded as economically competitive, compared to fossil fuels and crop-based biodiesel; therefore, it is not commercially produced. This review provides an overall perspective on technologies with the potential to increase efficiency and reduce the general costs of biodiesel production from microalgae. Opportunities and challenges for large-scale production are discussed. We present the current scenario of Brazilian research in the field and show a successful case in the research and development of microalgal biodiesel in open ponds by Petrobras. This publicly held Brazilian corporation has been investing in research in this sector for over a decade.

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Biomass productivity of Scenedesmus dimorphus (Chlorophyceae) was improved by using an open pond–photobioreactor hybrid system

Cited by 23 publications

References 34 publications

Sustainable microalgal biomass production in food industry wastewater for low-cost biorefinery products: a review

Sustainable microalgal biomass production in food industry wastewater for low-cost biorefinery products: a review

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Development of Microalgae Biodiesel: Current Status and Perspectives

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