Advances in Microalgal Research in Brazil

Matos, Ângelo Paggi

doi:10.1590/1678-4324-2021200531

Cited by 7 publications

(5 citation statements)

References 92 publications

(91 reference statements)

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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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“…In microalgae biotechnology, production and extraction of intracellular compounds involve extensive processing steps that start with algal cultivation either in closed photobioreactor or open raceway ponds (Matos et al 2018;de Souza et al 2021), algal biomass recovery or harvesting through filtration, flocculation and/or centrifugation (Vandamme et al 2013), followed by further processing steps, including dewatering, drying, cell disruption, extraction and product purification (Sharma et al 2013;Feller et al 2018;Matos 2021).…”

Section: Introductionmentioning

confidence: 99%

Effect of non-thermal plasma process on biomass, lipid, fatty acid and lignocellulosic material of Scenedesmus microalga for biofuel production

Cubas

Moecke

Sousa

et al. 2023

Preprint

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This study assessed the effect of short-period (3 min.) application of non-thermal plasma (NTP) on the synthesis of biomass and lipids in Scenedesmus sp. as well as determine fatty acid content, elemental composition and lignocellulosic material. We also investigated the long-period (10 min.) exposure of microalgal biomass to NTP prior to lipid extraction. After subjecting the Scenedesmus biomass for short-period of plasma process, the maximum lipid productivity (20.6 mg L-1 day-1) was achieved on the fourth day of cultivation, with high percentages of saturated fatty acids notably palmitic acid (C16:0). Results of elemental composition (C, N, O, Na, Mg, Si, K, Ca) in Scenedesmus biomass showed that NTP application does not change these chemical compounds in algal biomass, while the lignocellulosic material such as cellulose content doubled (29.3%) of almost twice the value of the control sample (14.5%), which is associated with depolymerization of the D-glucose units mediated by NTP. After exposing the algal biomass for long-period of NTP as a pre-treatment method, the lipid recovery from Scenedesmus sp. ranged from 15.0 to 32.8% and decreased in the following order NTP (air + argon) ˃ sonication ˃ NTP (argon) ˃ NTP (air) ˃ control. These results suggest that NTP is a promising technology to not only induces lipid synthesis in microalgal cells but also to enhance the lipid recovery prior to lipid extraction, which can be converted into biodiesel. The lignocellulosic material in Scenedesmus biomass delignified by NTP can be also used to obtain second-generation bioethanol.

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Advances in Microalgal Research in Brazil

Cited by 7 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

Effect of non-thermal plasma process on biomass, lipid, fatty acid and lignocellulosic material of Scenedesmus microalga for biofuel production

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