Optimization and characterization of biosurfactant produced by indigenous <i>Brevibacillus borstelensis</i> isolated from a low permeability reservoir for application in MEOR

Dong, Hao; Zheng, Anying; He, Youwei; Wang, Xiaotong; Yang, Li; Yu, Gaoming; Gu, Yong'an; Banat, İbrahim M.; Sun, Shanshan; She, Yuanbin; Zhang, Fan

doi:10.1039/d1ra07663a

Cited by 16 publications

(9 citation statements)

References 63 publications

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“…The solutions (100 mL) of CSL (at 100, 250, 400 g L −1 ) were prepared in 250 mL Erlenmeyer flasks by dissolving this liquor in demineralized water, which was then sterilized at 121 • C for 15 min. Then, 1 mL of A. aneurinilyticus was inoculated into the culture medium containing sterilized CSL solutions, and the flasks were incubated at three different temperatures (20,40, and 60 • C) for 8, 19, and 30 days of fermentation on a rotary shaker at 150 rpm.…”

Section: Preparation Of Csl Medium and Fermentationmentioning

confidence: 99%

Optimization of the Operational Conditions to Produce Extracellular and Cell-Bound Biosurfactants by Aneurinibacillus aneurinilyticus Using Corn Steep Liquor as a Unique Source of Nutrients

et al. 2023

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The relevance of this work lies in the fact that it is the first time that corn steep liquor (CSL) has been proposed as a unique source of nutrients for producing biosurfactants in a controlled fermentation and Aneurinibacillus aneurinilyticus, isolated from CSL, has been evaluated for producing extracellular and cell-bound biosurfactants in a controlled fermentation, using secondary raw materials as a source of nutrients. In the present study, A. aneurinilyticus was inoculated into the culture medium containing sterilized CSL solutions (100–400 g L−1) and incubated using different temperatures (20–60 °C) and fermentation times (8–30 days). The dependent variables under study were the concentration of extracellular biosurfactants and cell-bound biosurfactant production in terms of critical micellar concentration (CMC), as well as the C/N ratio for cell-bound biosurfactant extracts. It was observed that CSL could increase the concentration of extracellular biosurfactants produced by A. aneurinilyticus if these were fermented during 19 days at 40 °C, using 250 g L−1 of CSL; a mean value of 6 g L−1 for extracellular biosurfactants and favorable CMC concentrations enabled the detection of cell-bound biosurfactant extracts under these conditions. Hence, these conditions could be considered optimal for producing both extracellular and cell-bound biosurfactants from CSL.

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Section: Preparation Of Csl Medium and Fermentationmentioning

confidence: 99%

Optimization of the Operational Conditions to Produce Extracellular and Cell-Bound Biosurfactants by Aneurinibacillus aneurinilyticus Using Corn Steep Liquor as a Unique Source of Nutrients

et al. 2023

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“…Hence, the researchers have been focused on the immobilization of enzymes with no support, which act as biocatalyst. The biocatalyst immobilization is an important method in biotechnology field, which have several advantages including easier handling, simpler product separation, high stability, resistant against pH and temperature, possible to use continuously, no biomass washout, and cost effective 109 . Different types of biocatalyst immobilization methods are illustrated in Figure 4.…”

Section: Applications Of Biocatalyst In Biohydrogen Productionmentioning

confidence: 99%

“…The biocatalyst immobilization is an important method in biotechnology field, which have several advantages including easier handling, simpler product separation, high stability, resistant against pH and temperature, possible to use continuously, no biomass washout, and cost effective. 109 Different types of biocatalyst immobilization methods are illustrated in Figure 4. Various nanoparticles are available for immobilization of biocatalysts, such as carbon nanotubes, nanofibers, nanocomposites, nanorods, etc.…”

Section: Applications Of Biocatalyst In Biohydrogen Productionmentioning

confidence: 99%

“…Basically biosurfactants are produced by a various microorganisms as secondary metabolites, which are secreted extracellularly 105 . Bacteria such as Lysinibacillus spaericus, Pseudomonas sp, 106 Pediococcus dextrinicus , 107 Bacillus pumilus , 108 Brevibacillus borstelensis , 109 Gordonia sp 110 . have been found as effective biosurfactant producers.…”

Section: Surfactantsmentioning

confidence: 99%

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Enhancement of biological hydrogen production from organic wastes with the application of nanomaterials

Kanmani

2022

Intl J of Energy Research

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Summary At present, the energy requirements of the world majorly depend on fossil fuels, but overconsumption leads to a serious energy crisis, and the greenhouse gases released during the burning of fossil fuel arouse various environmental issues like global warming, acid rain, etc. Biohydrogen is one of the promising fuel among the alternative sources of energy, because it can be derived from renewable sources, cost effective, high energy content, clean, and environmentally friendly fuel. Biohydrogen has been produced by various methods namely thermo‐chemical gasification, solar gasification, electrolysis of water, pyrolysis, steam reforming, and biofermentation. Among them, the biological way of hydrogen production is an environmentally friendly method and does not require any external energy, but beside hydrogen dark fermentation could also generate CO2 and other gases as by‐products, which could contribute to the greenhouse gas augmentation if not well‐controlled. But the quantity of hydrogen production through the photo and dark fermentation method is low, which is also a major constrain for commercialization. In order to overcome this obstacle, many researchers engaged them in the biohydrogen production with nanotechnology which is a potential technique for efficient biohydrogen production. Hence, this review is mainly focused to providing an update of nanotechnology in biohydrogen production and state‐of‐the‐art on its emerging field. In this regard, this review paper highlighted several new findings and achievements in biohydrogen production using both inorganic and organic nanoparticles. Additionally, the synthesis of sustainable and environmentally friendly green nanoparticles in biohydrogen production has been addressed.

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“…Biosurfactants and BE have gained increased importance in recent years due to their potential applications in various industries such as pharmaceutical, agriculture, food, medicine, textile, and oil industry ( Kumar et al, 2021 ; Raj et al, 2021 ; Dong et al, 2022 ; Pardhi et al, 2022 ; Thraeib et al, 2022 ). They play a key role in industries by exhibiting different properties such as surface and interfacial tension reduction, wetting agent, oil dispersion, cleansing agent, and emulsification ( da Silva Lira et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Production and characterization of bioemulsifier by Parapedobacter indicus

Devale

Sawant²,

Pardesi³

et al. 2023

Front. Microbiol.

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The current study evaluated Parapedobacter indicus MCC 2546 for its potential to produce a bioemulsifier (BE). Screening methods performed for BE production by P. indicus MCC 2546 showed good lipase activity, positive drop collapse test, and oil-spreading activity. Furthermore, it showed maximum emulsification activity (225 EU/ml) and emulsification index (E24 50%) at 37°C in Luria Bertani broth at 72 h with olive oil as a substrate. The optimal pH and NaCl concentration for maximum emulsification activity were 7 and 1%, respectively. P. indicus MCC 2546 lowered the surface tension of the culture medium from 59.65 to 50.42 ± 0.78 mN/m. BE produced was composed of 70% protein and 30% carbohydrate, which showed the protein–polysaccharide nature of the BE. Furthermore, Fourier transform infrared spectroscopy analysis confirmed the same. P. indicus MCC 2546 showed a catecholate type of siderophore production. This is the first report on BE and siderophore production by the genus Parapedobacter.

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Optimization and characterization of biosurfactant produced by indigenous Brevibacillus borstelensis isolated from a low permeability reservoir for application in MEOR

Abstract: Biosurfactants are expected to be a key factor for microbial enhanced oil recovery (MEOR).

Cited by 16 publications

References 63 publications

Optimization of the Operational Conditions to Produce Extracellular and Cell-Bound Biosurfactants by Aneurinibacillus aneurinilyticus Using Corn Steep Liquor as a Unique Source of Nutrients

Optimization of the Operational Conditions to Produce Extracellular and Cell-Bound Biosurfactants by Aneurinibacillus aneurinilyticus Using Corn Steep Liquor as a Unique Source of Nutrients

Enhancement of biological hydrogen production from organic wastes with the application of nanomaterials

Production and characterization of bioemulsifier by Parapedobacter indicus

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