Enhanced biodegradation of crude oil by constructed bacterial consortium comprising salt-tolerant petroleum degraders and biosurfactant producers

Chen, Weiwei; Kong, Yachao; Li, Junde; Sun, Yanyu; Min, Jin‐Young; Hu, Xiaoke

doi:10.1016/j.ibiod.2020.105047

Cited by 51 publications

(12 citation statements)

References 49 publications

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“…La biorremediación de suelos contaminados con hidrocarburos requiere mayor efectividad, además de sostenibilidad ambiental y económica (Chen et al 2020). Este trabajo presenta el efecto de la bioestimulación con ramnolípidos de Pseudomonas sp.…”

Section: Discussionunclassified

“…La biorremediación exitosa depende de la capacidad catabólica de las bacterias para crecer y degradar los contaminantes, la viabilidad del inóculo y la microbiota endógena (Patowary et al 2018, Chen et al 2020. Durante el estudio en microcosmos se comprobó la presencia de bacterias degradadoras de hidrocarburos viables, en concentraciones suficientes para lograr un buen proceso de degradación.…”

Section: Discussionunclassified

“…Sin embargo, la eficiencia de la biorremediación puede estar limitada por características del contaminante, como su baja solubilidad y toxicidad (Chen et al 2020), la distribución espacial de los microorganismos y su capacidad metabólica. En este sentido, los biotensioactivos emergen como una alternativa segura para incrementar la eficiencia del proceso de degradación al facilitar la solubilización y emulsificación de moléculas hidrofóbicas, así como su biodisponibilidad y asimilación por las células microbianas (Santos et al 2016, Liu et al 2018, Dhanya 2021, Feng et al 2021.…”

Section: Introductionunclassified

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Aplicación de ramnolípidos de Pseudomonas sp. Y3-B1A en la biodegradación de hidrocarburos a diferentes escalas

Martín

León²,

Rodríguez³

et al. 2022

RICA

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La acumulación en suelos de petróleo crudo y sus derivados es un problema ambiental grave. La biorremediación es una tecnología de saneamiento de ecosistemas contaminados ampliamente estudiada y aplicada, cuya eficiencia puede estar limitada por la baja solubilidad y toxicidad de los contaminantes. El empleo de biotensioactivos favorece la solubilización de moléculas hidrofóbicas e incrementa la biodisponibilidad. En este trabajo se evaluó la influencia de la bioestimulación con ramnolípidos de Pseudomonas sp. Y3-B1A en la degradación de hidrocarburos a diferentes escalas, determinando a su vez la toxicidad de estas moléculas. En el laboratorio se evaluó la degradación en medio líquido suplementado con crudo e incubado por 28 días. El empleo de ramnolípidos incrementó en 61.7 % el porcentaje de degradación de hidrocarburos totales del petróleo (HTP) con relación al tratamiento sin aditivos. En los microcosmos y parcelas de suelo, se calculó la degradación de HTP, grasas y aceites (GA), compuestos saturados, aromáticos, resinas y asfaltenos a los 30 días. Además, se determinaron las concentraciones de nitrógeno y fósforo, así como el crecimiento microbiano. En los microcosmos la aplicación de ramnolípidos incrementó en más del 40 % la degradación de HTP, compuestos saturados y aromáticos. En las parcelas el incremento de la degradación de HTP y compuestos aromáticos fue de 33 a 34 %, mientras que la de GA alcanzó 86.5 %. La aplicación de ramnolípidos incrementa la biodegradación de hidrocarburos sin provocar efectos tóxicos en el ecosistema.

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Section: Discussionunclassified

Section: Introductionunclassified

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Aplicación de ramnolípidos de Pseudomonas sp. Y3-B1A en la biodegradación de hidrocarburos a diferentes escalas

Martín

León²,

Rodríguez³

et al. 2022

RICA

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“…A combination of hydrocarbon-degrading and BS-producing bacteria is suitable to remove crude oil contamination. Chen et al (2020) used the BS-producing, salt-tolerating, and crude oil-degrading bacteria Dietzia sp. CN-3, and Acinetobacter sp.…”

Section: Role Of Biosurfactants In Improving Soil Quality Through The...mentioning

confidence: 99%

Biosurfactants’ multifarious functional potential for sustainable agricultural practices

Karamchandani

Pawar

et al. 2022

Front. Bioeng. Biotechnol.

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Increasing food demand by the ever-growing population imposes an extra burden on the agricultural and food industries. Chemical-based pesticides, fungicides, fertilizers, and high-breeding crop varieties are typically employed to enhance crop productivity. Overexploitation of chemicals and their persistence in the environment, however, has detrimental effects on soil, water, and air which consequently disturb the food chain and the ecosystem. The lower aqueous solubility and higher hydrophobicity of agrochemicals, pesticides, metals, and hydrocarbons allow them to adhere to soil particles and, therefore, continue in the environment. Chemical pesticides, viz., organophosphate, organochlorine, and carbamate, are used regularly to protect agriculture produce. Hydrophobic pollutants strongly adhered to soil particles can be solubilized or desorbed through the usage of biosurfactant/s (BSs) or BS-producing and pesticide-degrading microorganisms. Among different types of BSs, rhamnolipids (RL), surfactin, mannosylerythritol lipids (MELs), and sophorolipids (SL) have been explored extensively due to their broad-spectrum antimicrobial activities against several phytopathogens. Different isoforms of lipopeptide, viz., iturin, fengycin, and surfactin, have also been reported against phytopathogens. The key role of BSs in designing and developing biopesticide formulations is to protect crops and our environment. Various functional properties such as wetting, spreading, penetration ability, and retention period are improved in surfactant-based formulations. This review emphasizes the use of diverse types of BSs and their source microorganisms to challenge phytopathogens. Extensive efforts seem to be focused on discovering the innovative antimicrobial potential of BSs to combat phytopathogens. We discussed the effectiveness of BSs in solubilizing pesticides to reduce their toxicity and contamination effects in the soil environment. Thus, we have shed some light on the use of BSs as an alternative to chemical pesticides and other agrochemicals as sparse literature discusses their interactions with pesticides. Life cycle assessment (LCA) and life cycle sustainability analysis (LCSA) quantifying their impact on human activities/interventions are also included. Nanoencapsulation of pesticide formulations is an innovative approach in minimizing pesticide doses and ultimately reducing their direct exposures to humans and animals. Some of the established big players and new entrants in the global BS market are providing promising solutions for agricultural practices. In conclusion, a better understanding of the role of BSs in pesticide solubilization and/or degradation by microorganisms represents a valuable approach to reducing their negative impact and maintaining sustainable agricultural practices.

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“…CN-3 and Acinetobacter sp. HC8-3S achieved higher crude oil degradation efficiency and better pH and NaCl tolerance than a single strain (Chen et al, 2020). Therefore, constructing a consortium is essential for microbial remediation of crude oil pollution (Balba et al, 1998;Suja et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Microbial community succession during crude oil-degrading bacterial enrichment cultivation and construction of a degrading consortium

Liu

et al. 2022

Front. Microbiol.

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Microbial community succession during the enrichment of crude-oil-degrading bacteria was analyzed using Illumina high-throughput sequencing to guide bacterial isolation and construction of a bacterial consortium. Community change occurred in 6 days; the most abundant phylum changed from Proteobacteria to Actinobacteria; the most abundant genera were Dietzia and unspecified_Idiomarinaceae. Two crude oil-degrading strains, Rhodococcus sp. OS62-1 and Dietzia sp. OS33, and one weak-crude-oil-degrading strain, Pseudomonas sp. P35, were isolated. A consortium comprising Rhodococcus sp. OS62-1 and Pseudomonas sp. P35 showed the highest crude-oil-degrading efficiency, reaching 85.72 ± 3.21% within 7 days, over a wide pH range (5–11) and salinity (0–80 g·L−1). Consumption of saturated hydrocarbons, aromatic hydrocarbons, and resins was greater by the consortium than by a single strain, as was degradation of short-chain-alkanes (C13–C17) according to gas-chromatography. The bacterial consortium provides technical support for bioremediation of crude oil pollution.

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Enhanced biodegradation of crude oil by constructed bacterial consortium comprising salt-tolerant petroleum degraders and biosurfactant producers

Cited by 51 publications

References 49 publications

Aplicación de ramnolípidos de Pseudomonas sp. Y3-B1A en la biodegradación de hidrocarburos a diferentes escalas

Aplicación de ramnolípidos de Pseudomonas sp. Y3-B1A en la biodegradación de hidrocarburos a diferentes escalas

Biosurfactants’ multifarious functional potential for sustainable agricultural practices

Microbial community succession during crude oil-degrading bacterial enrichment cultivation and construction of a degrading consortium

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