Lipid profile analysis of three new Amazonian cyanobacteria as potential sources of biodiesel

Oliveira, Dênio Ramam Carvalho de; Vasconcelos, Cárita Turbay; Feitosa, Anderson Miguel Teixeira; Aboim, Joseline Barbosa; Oliveira, Alex de; Xavier, Luciana Pereira; Santos, Alberdan Silva; Gonçalves, Evonnildo Costa; Filho, Geraldo Narciso da Rocha; Nascimento, Luís Adriano Santos do

doi:10.1016/j.fuel.2018.07.080

Cited by 37 publications

(13 citation statements)

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“…With occurrence in animals, plants and microorganisms [ 24 , 25 , 26 , 27 ], the bioprospection of glucosidase inhibitors in sustainable natural sources was once concentrated on macroalgae [ 28 , 29 , 30 ] but it is interesting to look for alternatives with cheaper cultivation and that require less area, such as microalgae, including cyanobacteria [ 31 , 32 , 33 , 34 , 35 , 36 , 37 ]. The possibility of associating the production of these inhibitors with other metabolites of biotechnological interest produced by cyanobacteria, such as antioxidants [ 38 ]; pigments [ 39 ], acids and polysaccharides of cosmetic and pharmacological interest [ 40 , 41 ] in addition to joint production with polyhydroxybutyrate (PHB) [ 42 , 43 ] and biofuels [ 44 , 45 , 46 ], while mitigating CO 2 [ 43 , 44 ], is yet another advantage of this bacterial phylum.…”

Section: Introductionmentioning

confidence: 99%

“…The exact biological function of these inhibitors in cyanobacteria is still unknown, with defense against predators being the most discussed action [ 33 , 34 , 35 ]. The search for cyanobacteria that produce glucosidase inhibitors in environments with different physical and chemical conditions, and therefore, with different ecological relationships, is a good strategy to find biological compounds that are often still unexplored, such as the search for inhibitors in marine cyanobacteria the Baltic Sea [ 51 ], tropical environments [ 37 ] and flooded regions in the Nile delta [ 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ].…”

Section: Introductionmentioning

confidence: 99%

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Glucosidase Inhibitors Screening in Microalgae and Cyanobacteria Isolated from the Amazon and Proteomic Analysis of Inhibitor Producing Synechococcus sp. GFB01

et al. 2021

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Microalgae and cyanobacteria are good sources for prospecting metabolites of biotechnological interest, including glucosidase inhibitors. These inhibitors act on enzymes related to various biochemical processes; they are involved in metabolic diseases, such as diabetes and Gaucher disease, tumors and viral infections, thus, they are interesting hubs for the development of new drugs and therapies. In this work, the screening of 63 environmental samples collected in the Brazilian Amazon found activity against β-glucosidase, of at least 60 min, in 13.85% of the tested extracts, with Synechococcus sp. GFB01 showing inhibitory activity of 90.2% for α-glucosidase and 96.9% against β-glucosidase. It was found that the nutritional limitation due to a reduction in the concentration of sodium nitrate, despite not being sufficient to cause changes in cell growth and photosynthetic apparatus, resulted in reduced production of α and β-glucosidase inhibitors and differential protein expression. The proteomic analysis of cyanobacteria isolated from the Amazon is unprecedented, with this being the first work to evaluate the protein expression of Synechococcus sp. GFB01 subjected to nutritional stress. This evaluation helps to better understand the metabolic responses of this organism, especially related to the production of inhibitors, adding knowledge to the industrial potential of these cyanobacterial compounds.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Glucosidase Inhibitors Screening in Microalgae and Cyanobacteria Isolated from the Amazon and Proteomic Analysis of Inhibitor Producing Synechococcus sp. GFB01

et al. 2021

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“…Some cyanobacteria isolated from Amazon have been considered as a promising source of biodiesel due to their fatty acid profile [ 77 , 78 ]. The alcohol 6-pentadecanol was identified in lesser quantity than heptadecane, which leads to inferring that acyl-ACP reductase action converted the most of fatty aldehydes generated to alkanes.…”

Section: Discussionmentioning

confidence: 99%

Determination of Volatile Organic Compounds and Antibacterial Activity of the Amazonian Cyanobacterium Synechococcus sp. Strain GFB01

et al. 2020

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Cyanobacteria exhibit great biotechnological potential due to their capacity to produce compounds with various applicability. Volatile organic compounds (VOCs) possess low molecular weight and high vapor pressure. Many volatiles produced by microorganisms have biotechnological potential, including antimicrobial activity. This study aimed to investigate the VOCs synthesized by cyanobacterium Synechococcus sp. strain GFB01, and the influence of nitrate and phosphate on its antibacterial potential. The strain was isolated from the surface of the freshwater lagoon Lagoa dos Índios, Amapá state, in Northern Brazil. After cultivation, the VOCs were extracted by a simultaneous distillation-extraction process, using a Likens-Nickerson apparatus (2 h), and then identified by GC-MS. The extracts did not display inhibitory activity against the Gram-positive bacteria tested by the disk-diffusion agar method. However, the anti-Salmonella property in both extracts (methanol and aqueous) was detected. The main VOCs identified were heptadecane (81.32%) and octadecyl acetate (11.71%). To the best of our knowledge, this is the first study of VOCs emitted by a cyanobacterium from the Amazon that reports the occurrence of 6-pentadecanol and octadecyl acetate in cyanobacteria.

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“…As a way to take advantage of Amazonian biodiversity in the search for microbial metabolites, in recent years, research with cyanobacteria from the Amazon has been developed with good results, and the sequencing of their genomes is an important tool in the search for compounds of biotechnological interest [ 192 , 193 ]. These organisms proved to be good producers of biodiesel, with yields higher than those in the literature and with parameters following international standards [ 194 , 195 ]. Biopolymer has also been detected in cyanobacteria in the region, with efforts being made to increase its production [ 196 ].…”

Section: Cyanobacteria Potential Application In Circular Economymentioning

confidence: 99%

Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy

2020

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Conventional petrochemical plastics have become a serious environmental problem. Its unbridled use, especially in non-durable goods, has generated an accumulation of waste that is difficult to measure, threatening aquatic and terrestrial ecosystems. The replacement of these plastics with cleaner alternatives, such as polyhydroxyalkanoates (PHA), can only be achieved by cost reductions in the production of microbial bioplastics, in order to compete with the very low costs of fossil fuel plastics. The biggest costs are carbon sources and nutrients, which can be appeased with the use of photosynthetic organisms, such as cyanobacteria, that have a minimum requirement for nutrients, and also using agro-industrial waste, such as the livestock industry, which in turn benefits from the by-products of PHA biotechnological production, for example pigments and nutrients. Circular economy can help solve the current problems in the search for a sustainable production of bioplastic: reducing production costs, reusing waste, mitigating CO2, promoting bioremediation and making better use of cyanobacteria metabolites in different industries.

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Lipid profile analysis of three new Amazonian cyanobacteria as potential sources of biodiesel

Cited by 37 publications

References 16 publications

Glucosidase Inhibitors Screening in Microalgae and Cyanobacteria Isolated from the Amazon and Proteomic Analysis of Inhibitor Producing Synechococcus sp. GFB01

Glucosidase Inhibitors Screening in Microalgae and Cyanobacteria Isolated from the Amazon and Proteomic Analysis of Inhibitor Producing Synechococcus sp. GFB01

Determination of Volatile Organic Compounds and Antibacterial Activity of the Amazonian Cyanobacterium Synechococcus sp. Strain GFB01

Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy

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