PROPERTIES OF MICROALGAE OIL FROM THE SPECIES Chlorella protothecoides AND ITS ETHYLIC BIODIESEL

Batista, Fábio Roberto de Souza; Lucchesi, Karolynne Weber; Carareto, Natália D.D.; Costa, Mariana C.; Meirelles, Antônio José de Almeida

doi:10.1590/0104-6632.20180354s20170191

Cited by 25 publications

(13 citation statements)

References 50 publications

(62 reference statements)

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“…Estudos recentes revelaram que o cultivo de microalgas permite, também, incorporar o dióxido de carbono gerado em processos industriais no processo de fotossíntese e, assim, contribuir com o aumento do volume de biomassa das microalgas que, por sua vez, proverá mais volume de matéria-prima para extração do bio-óleo (SADATSHOJAEI et al, 2020). Essa inovação baseia-se na capacidade das microalgas autotróficas de consumir CO2 e produzir carboidratos, hidrogênio, proteínas e lipídios que podem ser posteriormente convertidos em biocombustíveis (BENEMANN et al, 2018).…”

Section: Microalgas E Produção Energéticaunclassified

“…No geral, as espécies de microalgas primárias usadas para a produção de biodiesel são dos gêneros Botryococcus (PRATHIMA e KARTHIKEYAN, 2017), Chlorella (CHI et al, 2019), Scenedesmus (PUGAZHENDHI et al, 2020), Chlamydomonas (SCRANTON et al, 2015, Dunaliella (PATEL et al, 2021) e Nannochloropsis (CANCELA et al, 2019). Algumas espécies de microalgas podem proporcionar elevados volumes de biocombustíveis direcionados como, por exemplo, a espécie Chlorella protothecoides, que é considerada uma matéria-prima excelente para a produção de biodiesel por poder acumular 55% de lipídios quando cultivada de forma heterotrófica perante limitação de nitrogênio (PARSAEIMEHR et al, 2017;BATISTA et al, 2018). Em contraste às biomassas lignocelulósicas, algumas microalgas podem acumular grandes quantidades de carboidratos na forma de amido ou celulose durante períodos de estresse ambiental extremo (NIPHADKAR et al, 2018;DAVE et al, 2019;DA MAIA et al, 2020).…”

Section: Biodieselunclassified

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Microalgas Como Uma Alternativa Sustentável Na Produção De Biocombustíves 3g

Panta¹,

Diniz²,

Gloria³

et al. 2021

DRIUFT

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As energias renováveis estão ganhando importância, e os biocombustíveis à base de microalgas são vistos como uma excelente alternativa. Estas apresentam crescimento rápido, têm alta eficiência fotossintética, e têm necessidade de terra e consumo de água relativamente pequenos, em comparação com biocombustíveis de culturas terrestres convencionais. A microalga é apontada como matéria-prima promissora, e diversos estudos têm sido realizados desde o cultivo, extração e conversão, até o produto final, visando melhor eficiência energética no processo, bem como aumento de produtividade. Ainda existem barreiras desafiadoras na sua implementação como fonte potencial no mercado da bioenergia. Algumas espécies de microalgas crescem facilmente em águas salobras e residuais, tornando-a uma fonte energética mais viável. Embora as microalgas sejam a melhor alternativa para a produção de biocombustíveis, o custo de produção e o seu rendimento. ainda são desafiadores. Esta revisão avalia as diferentes etapas da geração de biocombustíveis a partir das microalgas, e esclarece sobre biocombustíveis de terceira geração (3G).

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Section: Microalgas E Produção Energéticaunclassified

Section: Biodieselunclassified

Microalgas Como Uma Alternativa Sustentável Na Produção De Biocombustíves 3g

Panta¹,

Diniz²,

Gloria³

et al. 2021

DRIUFT

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“…The most common raw materials used for the production of biodiesel have been the basic vegetable oils, however, this presents multiple problems such as competition with the use of basic oils for nutritional purposes, the use of agricultural land, the use of pesticides and fertilizers necessary for crops, which in turn can leach out and contaminate the groundwater [2,4]. One potential alternative renewable raw material for the production of lipids to produce biodiesel are microalgae, which have the potential to overcome many limitations, they are capable of satisfying the world demand for transportation fuels [5] and they seem to be the only source able to completely displace diesel fossil [6]. Microalgae are photosynthetic microorganisms [7] with simple growth requirements that can produce around 80% lipid by dry mass weight, although the levels commonly obtained are 20-50% [8].…”

Section: Introductionmentioning

confidence: 99%

“…Unlike terrestrial crops, microalgae grow 10-50 times faster [5], which leads to higher biofuel volumes per hectare, for example the yield of microalgae oil (58,700 L ha −1) is about 31 times higher than that of jatropha (1892 L ha −1 ) [2]. For the cultivation of microalgae, there are different systems [9], which use light (as an energy source), water and carbon dioxide (as a carbon source) to cultivate microorganisms, these in turn perform photosynthesis to generate biomass and oxygen [10].…”

Section: Introductionmentioning

confidence: 99%

Influence of Light Intensity and Photoperiod on the Photoautotrophic Growth and Lipid Content of the Microalgae Verrucodesmus verrucosus in a Photobioreactor

et al. 2021

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Microalgal biomass has the capacity to accumulate relatively large quantities of triacylglycerides (TAG) for the conversion of methyl esters of fatty acids (FAME) which has made microalgae a desirable alternative for the production of biofuels. In the present work Verrucodesmus verrucosus was evaluated under autotrophic growth conditions as a suitable source of oil for biodiesel production. For this purpose BG11 media were evaluated in three different light:dark photoperiods (L:D; 16:08; 12:12; 24:0) and light intensities (1000, 2000 and 3000 Lux) in a photobioreactor with a capacity of three liters; the evaluation of the microalgal biomass was carried out through the cell count with the use of the Neubauer chamber followed by the evaluation of the kinetic growth parameters. So, the lipid accumulation was determined through the lipid extraction with a Soxhlet system. Finally, the fatty acid profile of the total pooled lipids was determined using gas chromatography-mass spectroscopy (GC-MS). The results demonstrate that the best conditions are a photoperiod of 12 light hours and 12 dark hours with BG11 medium in a 3 L tubular photobioreactor with 0.3% CO2, 25 °C and 2000 Lux, allowing a lipid accumulation of 50.42%. Palmitic acid is identified as the most abundant fatty acid at 44.90%.

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“…Third-generation biofuels that are produced from algae have gained popularity recently mainly due to 20-80% (dry weight) lipid accumulation in their cells (Singh et al, 2016), no competition with food, the high biomass production per hectare of cultivation and strong absorption of CO2 (Batista et al, 2018). It can generate biohydrogen, biomethane and bioethanol.…”

Section: Introductionmentioning

confidence: 99%

Transformation of Lignocellulosic Biomass into Sustainable Biofuels: Major Challenges and Bioprocessing Technologies

Naz¹,

Nazir²,

Fazili³

et al. 2020

American Journal of Biochemistry and Biotechnology

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Commercial-scale production of biofuels has recently been intensified due to its cost-effectiveness, sustainability, market stability, alternative fuel energy composition and greener output, etc. Lignocellulosic biomass attracted the attention of researchers as a renewable feedstock for fermentative conversion into biofuels because of its high productivity, low agricultural input requirements, being environmentally friendly and no competition with the food crops. The field of bioenergy is rapidly evolving with discoveries that are being reported daily. In this review, the economical production of biofuels using different feedstocks and bioprocessing strategies with the aim of integral utilization of agricultural or organic wastes are discussed. This review also highlights the potential of pyrolytic oil as fermentable substrates for different types of microbes (yeast, bacteria and algae) to generate biofuels. Although there is continuous technologic improvement for cost reduction in biomass conversion by microbial fermentation. Still, there are many techno-economic challenges such as recalcitrant nature of substrates, removal of inhibitors, metabolic engineering of microbial strains and detoxification strategies for the elimination of inhibitors. So, this review also summarizes some of these major challenges that should be addressed to make biofuel production cost effective.

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PROPERTIES OF MICROALGAE OIL FROM THE SPECIES Chlorella protothecoides AND ITS ETHYLIC BIODIESEL

Cited by 25 publications

References 50 publications

Microalgas Como Uma Alternativa Sustentável Na Produção De Biocombustíves 3g

Microalgas Como Uma Alternativa Sustentável Na Produção De Biocombustíves 3g

Influence of Light Intensity and Photoperiod on the Photoautotrophic Growth and Lipid Content of the Microalgae Verrucodesmus verrucosus in a Photobioreactor

Transformation of Lignocellulosic Biomass into Sustainable Biofuels: Major Challenges and Bioprocessing Technologies

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