Modelling of growth kinetics of isolated<i>Pseudomonas sp.</i>and optimisation of parameters for enhancement of xanthine oxidoreductase production by statistical design of experiments

Sen, Sarani; Sarkar, Priyabrata

doi:10.1080/10934529.2018.1516070

Cited by 10 publications

(11 citation statements)

References 37 publications

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“…6 (a1, a2, a3, and a4) where no deviations in the normality of the residuals were observed and all plots are linear, indicating that the residuals tail a normal distribution. [17] The residuals are shown to be independent as in Fig. 6 (b1, b2, b3, and b4).…”

Section: Adsorption Mechanismmentioning

confidence: 81%

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Study of Removal conditions optimization for heavy metal from recycled formation water of oil field based on chitosan polymer and its quantum calculation

Khowdiary

Sheta

Taha

et al. 2023

Preprint

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Specific objective for this study was to stabilize a valid method to remove copper from recycled formation water from oil field. Chitosan used for Cu+ 2adsorption from simulated wastewater. Comparison between commercial (CC) and natural prepared chitosan (NC) from shrimps shell, also CC and NC was grafted for enhancing the efficiency of remove tested metal ions. By studying removal of Cu+ 2 across certain parameters as concentration, adsorbent dose, contact time and pH. The results summarized that maximum % removal for all types used was at 20 ppm with value of 94% for CC and NC ,96% for CGC and 98% for NGC after 3hr, 1g and pH = 7. While reaches about 99% removals by increasing adsorbent dose to 4 g for NGC and CGC. Different adsorption isotherms were studied for the remove of Cu+ 2 ions. Also the rate of Adsorption for different types of chitosan used was pseudo 1st order, pseudo 2nd order and Elvoich equation. The kinetic data were analyzed by the intra-particle diffusion model and liquid film diffusion model for Cu+ 2 adsorption using different types of chitosan to study the mechanism of reaction for each type. Significantly, in order to scale up this effective technique on an industrial scale, response surface methodology (RSM) as a modelling tool Statistical Software for further copper ion removal used. The DFT using B3LYP and utilized with 6- 311G* correlation function applied for investigated probs. DFT, and MEPs, also, used to identify the interaction compounds behavior over heavy metal for formation water.

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Section: Adsorption Mechanismmentioning

confidence: 81%

“…Figure 6 (d1, d2, d3, and d4). [17] The Box-Behnken design's results can be represented in three-dimensional outlines. The 3D surface plots highlight the types of relationships between the variables that allow for the best results.…”

Section: Adsorption Mechanismmentioning

confidence: 99%

Study of Removal conditions optimization for heavy metal from recycled formation water of oil field based on chitosan polymer and its quantum calculation

Khowdiary

Sheta

Taha

et al. 2023

Preprint

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“…They were isolated in-house from purine-enriched soil samples. 30 Isolated bacterial strains were incubated in nutrient broth (NB, composition: Peptone, 5 g L À1 ; NaCl, 5 g L À1 ; yeast extract, 2 g L À1 ; beef extract 1 g L À1 (pH 7.0 ± 0.2); and autoclaved at 121 C for 15 min before use) at 37 C for overnight to collect the cell-free extract (CFE). 5,30…”

Section: Preparation Of Bacterial Inoculumsmentioning

confidence: 99%

Impedance nanobiosensor based on enzyme‐conjugated biosynthesized gold nanoparticles for the detection of Gram‐positive bacteria

Sen,

Sarkar

2023

Biotechnology Progress

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In this report, gold nanoparticles (GNPS) were synthesized using cell‐free extracts of seven different isolates, namely, Pseudomonas aerogenosa CEBP2, Pseudomonas sp. CEBP1, Pseudomonas pseudoalcaligenes CEB1G, Acinetobactor baumani CEBS1, Cuprividus sp. CEB3, Micrococcus luteus CUB12, and Pandoraea sp. CUB2S. The spectroscopic (UV–vis, FTIR, DLS, XRD, EDS) and microscopic (FESEM, TEM) results confirm the reduction of Au3+ to Au0 in the presence of biomolecules having reducing as well as self‐stabilizing activity. In this green synthesis approach, the average particle size of biosynthesized GNPS might vary (4–60 nm) depending on the bacterial species, pH of the media, incubation time, and temperature. In this study, GSH‐modified BSGNPs (Au‐GSH) have shown antimicrobial activity with better stability against Gram‐positive bacteria. After conjugation of lysozyme with Au‐GSH (lyso@Au‐GSH), the zone of inhibition was enhanced from 12 to 23 mm (Au‐GSH). The TEM study shows the spherical GNP (16.65 ± 2.84) turns into a flower‐shaped GNP (22.22 ± 3.12) after conjugation with lysozyme due to the formation of the protein corona. Furthermore, the nanobioconjugate (lyso@Au‐GSH) was immobilized with Nafion on a glassy carbon electrode to fabricate a label‐free impedance biosensor that is highly sensitive to monitor changes in the transducer surface due to biomolecular interactions. The uniquely designed biosensor could selectively detect Gram‐positive bacteria in the linear range of 3.0 × 101–3 × 1010 cfu mL−1 with RE <5%. The proposed simplest biosensor exhibited good reproducibility (RSD = 3.1%) and excellent correlation (R2 = 0.999) with the standard plate count method, making it suitable for monitoring Gram‐positive bacterial contamination in biofluids, food, and environmental samples.

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“…Increasing reports showed that a large number of miRNAs were abnormally expressed in NASH and suggested that miRNAs could be potential biomarkers and therapeutic targets for NASH [22]. For example, Clarke et al found that miR-122 were significantly increased in serum in the mouse model of NASH and suggested that miR-122 could be a potential sensitive biomarker for the early detection of hepatotoxicity [23]. Loyer et al found that miRNA-21 was upregulated in NASH and contributed to the disease by inhibiting the expression of PPARα [24].…”

Section: Agingmentioning

confidence: 99%

“…MiRNA reveals a biological function by affecting the expression of a target gene by incompletely binding to a target gene [23]. MiRNAs are highly conserved and specific in expression, so they have small differences among different species and have better molecular markers for disease diagnosis and targeted therapy [24].…”

Section: Agingmentioning

confidence: 99%

Overexpression of miR-142-5p inhibits the progression of nonalcoholic steatohepatitis by targeting TSLP and inhibiting JAK-STAT signaling pathway

Zhou

Wang

Lei

et al. 2020

Aging

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Modelling of growth kinetics of isolatedPseudomonas sp.and optimisation of parameters for enhancement of xanthine oxidoreductase production by statistical design of experiments

Cited by 10 publications

References 37 publications

Study of Removal conditions optimization for heavy metal from recycled formation water of oil field based on chitosan polymer and its quantum calculation

Study of Removal conditions optimization for heavy metal from recycled formation water of oil field based on chitosan polymer and its quantum calculation

Impedance nanobiosensor based on enzyme‐conjugated biosynthesized gold nanoparticles for the detection of Gram‐positive bacteria

Overexpression of miR-142-5p inhibits the progression of nonalcoholic steatohepatitis by targeting TSLP and inhibiting JAK-STAT signaling pathway

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