Los microorganismos como una alternativa para la remediación de contaminación por hidrocarburos

Domínguez-Sánchez, Sicar; Martínez-Montoya, Humberto; Hernández-Jiménez, María Cristina; Torres-Rodríguez, Héctor Fabián; Rodríguez-Castillejos, Guadalupe

doi:10.29267/mxjb.2018.3.4.70

Cited by 3 publications

(2 citation statements)

References 45 publications

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“…T3 and T4 showed greater bacterial population at 89 days, but not in fungi whose greater populations showed at 79 days. Hydrocarbon degrading microorganisms have different capacities in the contaminated ecosystems to reduce the potential of the dangerous chemicals released in the environment (Domínguez-Sánchez et al, 2018). In general, the bacterial and fungal HC populations in soil increase significantly in time.…”

Section: Resultsmentioning

confidence: 99%

Bioremediation alternatives for total petroleum hydrocarbon removal in agricultural soil

Hernández-Acosta,

García-Gallegos

2024

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Objective: The purpose of the present study is to highlight the importance of assessing bioremediation and total petroleum hydrocarbon removal by bioaugmentation and biostimulation on the rhizosphere. Design/methodology/approach: An 89-day experiment was established with treatments considering plant (corn) establishment–crude petroleum (25,000 mg kg-1)–bacteria and hydrocarbonoclastic fungi–adding nitrogen and phosphorus to agricultural soil. At the end of the experiment, hydrocarbonoclastic fungal and bacterial populations and total petroleum hydrocarbon removal were assessed. Results: Both microbial groups increased in number and time. The treatment with 120 kg nitrogen ha-1 and 12.5 kg phosphorus ha-1 allowed the highest population (227 x 103 g-1 of colony forming units (CFU) of hydrocarbonoclastic bacteria). A total of 83% petroleum hydrocarbon removal was obtained as established in 89 days. Limitations on study/implications: The effectiveness of bioremediation can vary significantly in real environments due to factors, such as soil variability, climate. Findings/conclusions: The previous results highlight the importance of using these bioremediation techniques to eliminate hydrocarbons in contaminated agricultural soils.

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Section: Resultsmentioning

confidence: 99%

Bioremediation alternatives for total petroleum hydrocarbon removal in agricultural soil

Hernández-Acosta,

García-Gallegos

2024

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“…There is also information regarding the synthesis of protein of unicellular origin as food for humans and animals 22,23 . Examples in nature include the genera Candida 24,25 , Cryptococcus, Pichia and Yarrowia [26][27][28] , as well as: Meyerozyma, Rhodotorula, Wickerhamia and Rhodosporidium 6 . Therefore, there is evidence that the yeast genus Saccharomyces has the potential to be exploited for the synthesis of protein of unicellular origin to produce low-cost food of excellent nutritional quality 22 as well as for the recovery of environments impacted by hydrocarbon mixtures, such as kerosene, by means of bioaugmentation, a process in which Saccharomyces would be fundamental for it to succeed 27. In this sense, it has been reported that Saccharomyces species have the biochemical capacity to utilize 12-to 16-carbon hydrocarbon fractions analogous to kerosene to mineralize them to CO2 and water 28 .…”

Section: Introductionmentioning

confidence: 99%

Saccharomyces exiguus Uses Kerosene as a Source of Carbon and Energy

2023

MSJ

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Kerosene is a fuel derived from petroleum, a mixture of aliphatic and aromatic hydrocarbons, which eventually cause environmental pollution. In nature, there are genera and species of aerobic heterotrophic microorganisms, native to all environments, that have the potential capacity to degrade kerosene, such as some genera and species of yeast, to synthesize protein of unicellular origin or to bioaugment the negative environmental impact of kerosene. for the above. The objective of this work was to analyze the ability of Saccharomyces exiguus to use kerosene as a carbon and energy source. For this, S. exiguus was isolated from oil wells, it was grown in 5% kerosene with 1.2% NH4Cl and 50 ppm yeast extract. The growth of S. exiguus in kerosene was analyzed using the response variables: dry weight, protein quantification, and gas chromatography showed the use of kerosene components as a carbon and energy source. The results showed that S. exiguus can use the aliphatic and aromatic hydrocarbons of kerosene as the only source of carbon and energy, this potential is applicable to synthesize unicellular protein or in the recovery of environments impacted by kerosene.

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Saccharomyces exiguus utiliza queroseno como fuente de carbono y energía

Romo-Enríquez

Cruz

Villegas-Moreno

et al. 2022

J. Selva Andina Res. Soc.

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El queroseno es un combustible derivado del petróleo, una mezcla hidrocarburos alifáticos y aromáticos, que eventualmente causan contaminación ambiental. En la naturaleza existen géneros y especies de microorganismos heterotróficos aerobios, nativos de todo ambiente, que tienen la capacidad potencial para degradar queroseno como algunos géneros y especies de levadura, para sintetizar proteína de origen unicelular o bien para bioaumentación del impacto negativo ambiental del queroseno, por lo anterior. El objetivo de este trabajo fue analizar la capacidad de Saccharomyces exiguus para utilizar queroseno como fuente de carbono y energía. Para ello, S. exiguus se aisló de pozos petroleros, se creció en queroseno al 5 % con NH4Cl al 1.2 % y 50 ppm de extracto de levadura. El crecimiento de S. exiguus en queroseno se analizó mediante las variables respuesta: peso seco, cuantificación de proteínas y por cromatografía de gases se demostró la utilización de los componentes del queroseno como fuente de carbono y energía. Los resultados mostraron que S. exiguus puede de utilizar los hidrocarburos alifáticos y aromáticos del queroseno como única fuente de carbono y energía, este potencial es aplicable para sintetizar proteína unicelular o en la recuperación de ambientes impactados por queroseno. Journal of the Selva Andina Research Society ® . Bolivia. Todos los derechos reservados.

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Los microorganismos como una alternativa para la remediación de contaminación por hidrocarburos

Cited by 3 publications

References 45 publications

Bioremediation alternatives for total petroleum hydrocarbon removal in agricultural soil

Bioremediation alternatives for total petroleum hydrocarbon removal in agricultural soil

Saccharomyces exiguus Uses Kerosene as a Source of Carbon and Energy

Saccharomyces exiguus utiliza queroseno como fuente de carbono y energía

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