Kinetic modelling of cell growth, substrate utilization, and biosurfactant production from solid agrowaste (<i>Beta vulgaris)</i> by <i>Bacillus licheniformis</i> STK 01

Amodu, Olusola Solomon; Ojumu, Tunde Victor; Ntwampe, Seteno Karabo Obed

doi:10.1002/cjce.22631

Cited by 15 publications

(18 citation statements)

References 34 publications

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“…The maximum degradation of LDPE was then evaluated as 33.32% ± 1.39% under optimized conditions. Similarly, the isolate P. aeruginosa ISJ14 degraded only 6.5% LDPE within 2 months of incubation [38] while Brevibacillus borstelensis 707 degraded 2.5% after 1 month of incubation [39]. The Streptomyces sp.…”

Section: Biodegradation Assay Of Isolate and Its Growth Kinetic Modelmentioning

confidence: 99%

Biodegradation and detoxification of low-density polyethylene by an indigenous strain Bacillus licheniformis SARR1

Rani¹,

Rathee²,

Kumari³

et al. 2022

J Appl Biol Biotech

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Plastics are synthetic polymers, which are frequently used in daily life for a wide range of purposes. These plastic wastes are accumulated and generate plastic pollution in the environment. It needs many years for complete deterioration in the environmental conditions. Biodegradation is the most promising method to treat plastic pollution, as the microorganisms utilize the low-density polyethylene (LDPE) as a sole source of carbon, and this indicates an innovative approach to manage the problem of plastic waste. The isolate SARR1 was identified as Bacillus licheniformis using the National Center for Biotechnology Information (NCBI) database. The isolate SARR1 showed an LDPE removal rate (K) of 0.069 g day −1 with a half-life of approximately 335.32 days to degrade LDPE strips. The biomass production was 0.98 ± 0.006 gl −1 (X m ) during the incubation of 30 days, and the percentage of crystallinity was significantly decreased from 71.69% to 50.78% due to biodegradation. The esterase and lipase activity of isolate SARR1 was studied using UV visible spectroscopy. The gas chromatography-mass spectrometry analysis confirmed the synthesis of acetone, diazene dimethyl, and carbamimidothioic acid, 1-methylethyl ester with different peak area percentages of 23.38%, 65.58%, and 11.04%, respectively. Seed germination study showed that the compounds formed after biodegradation of LDPE by bacterial strain SARR1 were eco-friendly.

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Section: Biodegradation Assay Of Isolate and Its Growth Kinetic Modelmentioning

confidence: 99%

Biodegradation and detoxification of low-density polyethylene by an indigenous strain Bacillus licheniformis SARR1

Rani¹,

Rathee²,

Kumari³

et al. 2022

J Appl Biol Biotech

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“…Varios estudios han demostrado la capacidad de las especies de Acinetobacter para consumir FCs hidrofílicas, hidrofóbicas o mezclas de ambas fuentes de carbono para la producción de BEs [8,10,11]. Sin embargo, pocos reportes han realizado estudios cinéticos de crecimiento y producción de BEs [12]. Además, existen pocas publicaciones sobre producción de BEs en biorreactores.…”

Section: Resultados Y Discusiónunclassified

“…El Alasan de A. radioresistens KA53 se reportó como termoestable (27 -100 °C) pero sólo fue estable en un pequeño rango de pH (8 -9) [9]. El BE que produce A. beijerinckii ZRS se reportó como estable a cambios de pH (7)(8)(9)(10)(11)(12), salinidad (0 -3 % NaCl p/v) y temperatura (4 -60 °C) [3]. Es importante señalar que se reporta la estabilidad de los BEs pero en la mayoría de los estudios no se explica por qué son estables.…”

Section: Estabilidad De Bioemulsificantesunclassified

“…Los estudios cinéticos son necesarios para realizar un correcto diseño y control de biorreactores [12]. Entre los parámetros cinéticos más importantes se encuentran: la tasa de volumétrica de producción (qp), la tasa máxima específica de crecimiento (), la duración de la fase lag (), el crecimiento máximo, entre otros.…”

Section: Parámetros Cinéticos De Producción Y De Crecimientounclassified

“…Varios estudios han demostrado la capacidad de las especies del género Acinetobacter para consumir fuentes de carbono hidrofílicas, hidrofóbicas o mezclas de ambas para la producción de BEs [8,10,11]. Sin embargo, pocos trabajos han reportado estudios cinéticos de producción de BEs y crecimiento, que son necesarios para el diseño y control de biorreactores [12]. Además, hay pocas publicaciones sobre producción de BEs en biorreactores que permitan el desarrollo de tecnología para la producción de BEs a nivel industrial.…”

Section: Introductionunclassified

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Contribución al estudio del bioemulsificante de Acinetobacter bouvetii UAM25 para su producción y aplicación en hidrocarburos

Rosa

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Stable bioemulsifiers are produced by Acinetobacter bouvetii UAM25 growing in different carbon sources

Rosa

Vázquez-Vázquez

Huerta‐Ochoa

et al. 2018

Bioprocess Biosyst Eng

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Acinetobacter species are identified as producing surface-active and emulsifying molecules known as bioemulsifiers. Production, characterization and stability of bioemulsifiers produced by Acinetobacter bouvetii UAM25 were studied. A. bouvetii UAM25 grew in three different carbon and energy sources: ethanol, a glycerol-hexadecane mixture and waste cooking oil in an airlift bioreactor, showing that bioemulsifier production was growth associated. The three purified bioemulsifiers were lipo-heteropolysaccharides of high molecular weight (4866 ± 533 and 462 ± 101 kDa). The best carbon source and energy for bioemulsifier production was wasted cooking oil, with a highest emulsifying capacity (76.2 ± 3.5 EU mg) as compared with ethanol (46.6 ± 7.1 EU mg) and the glycerol-hexadecane mixture (49.5 ± 4.2 EU mg). The three bioemulsifiers in our study displayed similar macromolecular structures, regardless of the nature (hydrophobic or hydrophilic) of the carbon and energy source. Bioemulsifiers did not decrease surface tension, but the emulsifying capacity of all of them was retained under extreme variation in salinity (0-50 g NaCl L), pH (3-10) and temperature (25-121 °C), indicative of remarkable stability. These findings contribute to understanding of the relationship between: production, physical properties, chemical composition and stability of bioemulsifiers for their potential applications in biotechnology, such as bioremediation of hydrocarbon-contaminated soil and water.

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Kinetic modelling of cell growth, substrate utilization, and biosurfactant production from solid agrowaste (Beta vulgaris) by Bacillus licheniformis STK 01

Cited by 15 publications

References 34 publications

Biodegradation and detoxification of low-density polyethylene by an indigenous strain Bacillus licheniformis SARR1

Biodegradation and detoxification of low-density polyethylene by an indigenous strain Bacillus licheniformis SARR1

Contribución al estudio del bioemulsificante de Acinetobacter bouvetii UAM25 para su producción y aplicación en hidrocarburos

Stable bioemulsifiers are produced by Acinetobacter bouvetii UAM25 growing in different carbon sources

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