Advances in Microalgal Research in Brazil

Matos, Ângelo Paggi

doi:10.1590/1678-4324-2021200531

Cited by 11 publications

(7 citation statements)

References 92 publications

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“…As a result, a fund was opened for research focused on biodiesel production from microalgae. In 2013 a new governmental investment was made with the partnership of CNPq for biofuels and bioproducts from microalgae [ 11 ]. Since these investments, microalgae research in Brazil has been developing and mobilizing several public institutions and academic laboratories.…”

Section: Biodiesel From Microalgae In Brazilmentioning

confidence: 99%

“…The main biofuels available are biodiesel and bioethanol [ 2 , 9 , 10 ]. Other alternative green solutions are biomethane and biohydrogen [ 11 ]. Biodiesel is produced from lipids mainly by transesterification reactions having oils as the starting material [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…This concept decreases the impacts of costs and productivity. Several countries, including Brazil, are investing in the development of algal biotechnology [ 11 ]. However, there are bottlenecks to be overcome, such as expensive and energy-intensive cultivation, microbial contamination, and the biodiesel conversion processes.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Biodiesel From Microalgae In Brazilmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development of Microalgae Biodiesel: Current Status and Perspectives

et al. 2022

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“…Brazil has also made a significant contribution in promoting the creation of biodiesel from microalgae oil [ 82 , 83 , 84 ]. Currently, the Petrobras company, Brazil, is researching and investing in microalgae production in the petrochemical sector, while the Ministério da Ciência, Tecnologia e Inovação (MCTI), through the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), is committed to investing significant funding in research endeavors in the tertiary institutions and research institutes to promote cutting edge research on obtaining biofuel from algae [ 82 , 84 , 85 ]. Countries in Africa are far behind in this regard, and there is a need for them to do more and to become committed to promoting the production and commercialization of biofuel.…”

Section: Current Status and Future Perspectivementioning

confidence: 99%

Production of Biodiesel from Underutilized Algae Oil: Prospects and Current Challenges Encountered in Developing Countries

Adewuyi

2022

Biology

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Biofuel continues to thrive as an outstanding source of renewable energy for the global community. Several resources have been proposed as sources of feedstocks for biofuel; however, some of these have shortcoming. The use of biomass such as algae as a source of feedstock for biofuel is undoubtedly sustainable and green. Unfortunately, the use of algae oil for biodiesel production is underutilized in developing countries. Therefore, this study focuses on finding a better understanding of the evolving prospects and current challenges facing biodiesel production from algae oil in developing countries. The study revealed that less attention is given to the use of algae oil in biodiesel production due to poor enlightenment on biotechnology, high poverty rates, government policies, business strategies, and poor funding of research. Interestingly, several species of algae that can serve as sustainable feedstocks for biodiesel production have been identified in developing countries. It is evident that algae oil has properties that qualify it for the production of biodiesel with fuel properties that meet both the American Society for Testing and Materials and the European standards for biodiesel.

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“…Microalgae are studied as a possible raw material for biofuels production due to their rapid growth and the ability to accumulate neutral lipids that can be converted into biodiesel. In their composition, microalgae contain carbohydrates, proteins, lipids, and fatty acids [1]. Previous studies have produced biodiesel from algal lipids that had similar properties to those of fossil diesel or other common biodiesels [2].…”

Section: Introductionmentioning

confidence: 99%

Rapid Quantification of Lipids in Microalgae Scenedesmus sp. Using Fluorescence

Bazan,

Ranzan,

Farenzena

et al. 2023

Braz. arch. biol. technol.

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Lipids extracted from microalgae for biofuel production have drawn the attention of researchers. Various methods for quantification of neutral lipids, such as solvent extraction or gravimetric, require a large volume of sample and are time-consuming. In this work, Nile Red was employed to evaluate the lipid content in microalgae Scenedesmus sp. through 2D fluorescence spectroscopy using chemometric modeling with a selection of wavelength pairs reducing the variable numbers. Cultivation of microalgae for 10 days was performed. Samples were taken starting after the 5th day of cultivation. Microalgae samples were dried using an oven with tangential airflow and the conventional Bligh and Dyer method for lipid extraction was employed. Before the measurement of fluorescence, the samples were diluted in ethanol at 40°C for 10 minutes, and then Nile Red solution (10 µg/mL ethanol) was added. The results of lipid quantification using the proposed technique achieved mean absolute percentage error (MAPE) lower than 5% and correlation coefficients around 0.99 in the test phase. Linear models using four excitation-emission pairs of fluorescence were fitted and were selected based on Pure Spectral Chemometric Modelling (PSCM). The method for lipid quantification using predictive linear models and 2D fluorescence proved to be robust and fast (requiring less than 30 min) compared to the conventional gravimetric method (which takes at least 5 hours) to obtain comparable results.

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Advances in Microalgal Research in Brazil

Cited by 11 publications

References 92 publications

Development of Microalgae Biodiesel: Current Status and Perspectives

Development of Microalgae Biodiesel: Current Status and Perspectives

Production of Biodiesel from Underutilized Algae Oil: Prospects and Current Challenges Encountered in Developing Countries

Rapid Quantification of Lipids in Microalgae Scenedesmus sp. Using Fluorescence

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