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Rana S, Upadhyay LSB. Utilization of non-pathogenic bacteria to obtain optimum biofilm production for beneficial applications. Braz J Microbiol 2023; 54:1875-1883. [PMID: 37389797 PMCID: PMC10484866 DOI: 10.1007/s42770-023-01044-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 06/19/2023] [Indexed: 07/01/2023] Open
Abstract
Depending on the bacteria embedded in the extracellular polymeric layer, biofilms can be advantageous or harmful. The isolated strains used in this investigation are already established to be beneficial biofilm-producing bacteria. In order to use them effectively in various domains, it is necessary to characterize them and understand their ideal physiological characteristics for maximum biofilm growth. This study used genome sequence analysis to identify and characterize strains isolated from water samples in Raipur, Chhattisgarh, India. The nucleotide sequences were submitted to NCBI GenBank under the accession numbers Bacillus tequilensis (MN889418) and Pseudomonas beteli (MN889419) and the strains were further characterized using some advanced techniques (phase contrast microscopy, Raman spectroscopy, Fourier-transform infrared spectroscopy, and scanning electron microscope). For maximum biofilm formation by isolated bacterial strains, many physiochemical factors including incubation duration, temperature, pH, carbon source concentration, and nitrogen source concentration were further examined and optimized. The fact that these non-pathogenic strains were found in public water supplies is another important part of this research because there is a chance that they could change into pathogenic state in future and cause disease in humans.
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Affiliation(s)
- Sonali Rana
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattisgarh 492010 India
| | - Lata Sheo Bachan Upadhyay
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattisgarh 492010 India
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Rana S, Upadhyay LSB. Methylene Blue Assisted Electrochemical Detection of Bacterial Biofilm. Indian J Microbiol 2023; 63:299-306. [PMID: 37781013 PMCID: PMC10533774 DOI: 10.1007/s12088-023-01084-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 06/27/2023] [Indexed: 10/03/2023] Open
Abstract
This paper presents a novel electrochemical transduction method for the rapid and straightforward detection of bacterial biofilm. Briefly, fifteen isolates from various sources were collected and evaluated for their ability to generate biofilm. The Congo red-based agar method and the tube test were used for preliminary screening. A microtiter experiment was also performed to quantitatively examine the screening results and validate the outcomes of the proposed methylene blue-based electrochemical detection method. Electrochemical sensing was performed on the two selected isolates using methylene blue as a redox indicator. For optimization goals, several methylene blue concentrations were studied. Methylene blue at a concentration of 0.4 mM was used for the analysis conclusion. The developed electrochemical method displayed a linear R2 value of 0.9747. The new electrochemical approach demonstrated great sensitivity and rapid response compared to conventional microtiter test methods.
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Affiliation(s)
- Sonali Rana
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattisgarh 492010 India
| | - Lata Sheo Bachan Upadhyay
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattisgarh 492010 India
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Tirkey A, Upadhyay LSB. Microplastics: An overview on separation, identification and characterization of microplastics. Mar Pollut Bull 2021; 170:112604. [PMID: 34146857 DOI: 10.1016/j.marpolbul.2021.112604] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/02/2021] [Accepted: 06/04/2021] [Indexed: 06/12/2023]
Abstract
At present plastic residues has become grave threat to the environment. Microplastics are plastic residues with a size <5 mm, due to their small size it is very difficult to remove them from water bodies, sediments and air with available techniques. Nanoplastics are different in size range as nanoplastics are smaller than 1 μm in size. This review is an attempt to gather an insight towards microplastic and its associated point of concerns. The review will highlight some of the methods appropriate for microplastics sampling and techniques for its identification in environmental samples. Some of the sampling methods include sieving, filtration, visual sorting, digestion, density separation. While, identification techniques in practice are SEM-EDS, FTIR, NIR, Raman, NMR spectroscopy, etc. Still there is a need and scope for development of more economical and portable techniques in this direction.
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Affiliation(s)
- Anita Tirkey
- National Institute of Technology Raipur, Department of Biotechnology, Raipur, Chhattisgarh 492010, India
| | - Lata Sheo Bachan Upadhyay
- National Institute of Technology Raipur, Department of Biotechnology, Raipur, Chhattisgarh 492010, India.
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Rana S, Upadhyay LSB. Microbial exopolysaccharides: Synthesis pathways, types and their commercial applications. Int J Biol Macromol 2020; 157:577-583. [PMID: 32304790 DOI: 10.1016/j.ijbiomac.2020.04.084] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/01/2020] [Accepted: 04/12/2020] [Indexed: 01/19/2023]
Abstract
Polysaccharides are essential natural metabolites found in all life forms such as microorganisms, animals and plants with various biochemical structures and biological functions. Among all the life forms microbial exopolysaccharides are produced in shorter time duration as they responsible for the microbial cell adhesion and protection during unfavorable growth conditions. Microbial exopolysaccharides are composed of repeated sugar units of same or different types and form a complex by associating with proteins, lipids, metal ions, extracellular DNA (eDNA), organic and inorganic compounds to form a protective layer around the microbial colonies collectively known as biofilm. Specific functions of exopolysaccharides depend on structural composition and habitat of a host microorganism. There are various techniques to study the composition and structure of exopolysaccharides such as High Performance Anion Exchange Chromatography with Pulsed Amperometric Detection, Size Exclusion Chromatography coupled with multi-laser light scattering (SEC-MALLS),X-Ray diffraction (XRD), Differential Scanning Calorimetry (DSC), Fourier Transform Infrared (FTIR) and Thermal Gravimetric Analysis (TGA), etc. In the current article, we reviewed microbial exopolysaccharides physiochemical properties, composition, analyzing techniques through which possible commercial applications in dairy products, cosmetics, research, agriculture and petroleum industry can be performed.
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Affiliation(s)
- Sonali Rana
- National Institute of Technology Raipur, Department of Biotechnology, Raipur, Chhattisgarh 492010, India
| | - Lata Sheo Bachan Upadhyay
- National Institute of Technology Raipur, Department of Biotechnology, Raipur, Chhattisgarh 492010, India.
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Chauhan S, Upadhyay LSB. Biosynthesis of iron oxide nanoparticles using plant derivatives of Lawsonia inermis (Henna) and its surface modification for biomedical application. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s41204-019-0055-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chauhan S, Upadhyay LSB. An efficient protocol to use iron oxide nanoparticles in microfluidic paper device for arsenic detection. MethodsX 2018; 5:1528-1533. [PMID: 30555794 PMCID: PMC6279952 DOI: 10.1016/j.mex.2018.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 10/13/2018] [Indexed: 11/30/2022] Open
Abstract
This method describes a rapid ecofriendly and affordable method for detecting arsenic in the water sample. The system designed works on the principle that involves generation of arsine due to reduction of arsenic by bare and cysteine capped iron oxide nanoparticles and its further reaction with silver nitrate present on the microfluidic paper analytical device (μPAD). Change in the color of μPAD from colorless to reddish brown is a result of reaction between arsine gas and silver nitrate, and is the detection criteria. The sample solution of arsenic was prepared in lemon juice to provide the required acidic environment for hydride generation. This proposed method has detection limit of 0.01 ppm (10 ppb) and 1 ppm for cysteine capped and bare iron oxide nanoparticles respectively. This is for the first time that iron oxide nanoparticles are being used for detection and reduction arsenic species in environmental sample. The same device can be used for on-site detection in an ecofriendly manner.
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Affiliation(s)
- Shraddha Chauhan
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattishgarh, 492010, India
| | - Lata Sheo Bachan Upadhyay
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattishgarh, 492010, India
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Affiliation(s)
| | - Nikhil Kumar
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattisgarh, India
| | - Shraddha Chauhan
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattisgarh, India
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Affiliation(s)
- Aditya Dutt
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattisgarh, India
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Affiliation(s)
| | - Nikhil Kumar
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattisgarh, India
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Affiliation(s)
- Nishant Verma
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattisgarh, India
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Verma N, Kumar N, Upadhyay LSB, Sahu R, Dutt A. Fabrication and Characterization of Cysteine-Functionalized Zinc Oxide Nanoparticles for Enzyme Immobilization. ANAL LETT 2017. [DOI: 10.1080/00032719.2016.1245315] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Nishant Verma
- Department of Biotechnology, National Institute of Technology, Raipur, Chhattisgarh, India
| | - Nikhil Kumar
- Department of Biotechnology, National Institute of Technology, Raipur, Chhattisgarh, India
| | | | - Reecha Sahu
- Department of Biotechnology, National Institute of Technology, Raipur, Chhattisgarh, India
| | - Aditya Dutt
- Department of Biotechnology, National Institute of Technology, Raipur, Chhattisgarh, India
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Upadhyay LSB, Verma N. Alkaline phosphatase inhibition based conductometric biosensor for phosphate estimation in biological fluids. Biosens Bioelectron 2015; 68:611-616. [DOI: 10.1016/j.bios.2015.01.064] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 01/22/2015] [Accepted: 01/26/2015] [Indexed: 11/26/2022]
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Upadhyay LSB, Verma N. A three step approach for the purification of alkaline phosphatase from non-pasteurized milk. J Food Sci Technol 2015; 52:3140-6. [PMID: 25892822 DOI: 10.1007/s13197-014-1578-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/11/2014] [Accepted: 09/16/2014] [Indexed: 11/28/2022]
Abstract
In this study, a three step purification of alkaline phosphatase from non-pasteurized milk has been described. It included cream extraction, n-butanol treatment and acetone precipitation. Different parameters such as buffer concentration, temperature, pH, substrate concentration, acetone and n-butanol treatment were optimized to maximize the enzyme activity. The enzyme was fruitfully purified up to homogeneity from the milk, with percentage recovery and fold purification of 56.17 and 17.67 respectively. The kinetic parameters were determined to be 0.927 mM (Km) and 55.86 μM/min (Vmax), with specific activity of 11.31 U/mg. Other optimized parameters were estimated as a buffer concentration of 0.5 M with pH 9.0, temperature optima at 37 °C, with n-butanol and acetone concentration of 20 % (v/v) and 50 % (v/v) respectively. This approach provides a simple and effective method for the purification of alkaline phosphatase from non-pasteurized milk.
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Affiliation(s)
| | - Nishant Verma
- Department of Biotechnology, National Institute of Technology, Raipur, 492010 India
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Upadhyay LSB, Verma N. Highly efficient production of inverted syrup in an analytical column with immobilized invertase. J Food Sci Technol 2014; 51:4120-4125. [PMID: 25477691 PMCID: PMC4252439 DOI: 10.1007/s13197-013-0957-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/29/2013] [Accepted: 02/04/2013] [Indexed: 06/04/2023]
Abstract
This paper presents a procedure by which a simple and economical analytical column containing immobilized invertase was developed. This column has high efficiency of converting sucrose into inverted syrup rapidly. Gelatine beads were used for the immobilization of invertase. The enzyme was entrapped efficiently and was found to be stable and retained its activity over a period of 3 months. Immobilization parameters for maximum enzyme activity were estimated as temperature optima at 60 °C, pH optima 7.0 and 30 mg/mL enzyme concentration was found to give maximum immobilization (72 %). The reusability of the gelatine immobilized invertase was found to be seven times with a time interval of 24 h. The immobilized invertase presented a KM of 51.28 mM and Vmax of 0.334 mM/min. The time required to hydrolyse 50 % sucrose solution by a column of length 10 cm and diameter of 1.5 cm was found to be 15 min at room temperature. The column was found effective for inversion of biological samples like sugar cane juice.
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Affiliation(s)
| | - Nishant Verma
- Department of Biotechnology, National Institute of Technology, Raipur, 492010 India
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Tapadia K, Shrivas K, Upadhyay LSB. GC–MS Coupled with Hollow-Fiber Drop-to-Drop Solvent Microextraction for Determination of Antidepressants Drugs in Human Blood Sample. Chromatographia 2011. [DOI: 10.1007/s10337-011-2096-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Prakash O, Upadhyay LSB. Acetohydroxamate Inhibition of the Activity of Urease from Dehusked Seeds of Water Melon(Citrullus vulgaris). J Enzyme Inhib Med Chem 2011; 19:381-7. [PMID: 15558957 DOI: 10.1080/14756360409162454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Urease from the seeds of watermelon (Citrullus vulgaris) was purified to apparent homogeneity, using two acetone fractionation steps, heat treatment at 48 degrees C and gel filtration through Sephadex G-200. Effect of acetohydroxamic acid (AHA) on the activity of the homogeneous enzyme preparation (sp. act. 3000 +/- 550U/mg protein) was investigated. AHA exhibited a concentration-dependent inhibition both in the presence and absence of the substrate. The inhibition was uncompetitive and the Ki was 2.5 mM. Binding of AHA with the enzyme was reversible, as 63% activity could be restored by dialysis. Time-dependent inhibition revealed a monophasic inhibition of the activity. Addition of beta-mercaptoethanol (ME) gradually abolished the inhibition. Pre-treatment of native enzyme with 8.0 mM ME for 5 min at 30 degrees C exhibited protection against AHA-induced inhibition. The significance of these observations is discussed.
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Affiliation(s)
- Om Prakash
- Department of Biochemistry, Faculty of Science, Banaras Hindu University, Varanasi 221005, India.
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Prakash O, Puliga S, Bachan Upadhyay LS. Immobilization of watermelon (Citrullus vulgaris) urease in agarose gel for urea estimation. BIOTECHNOL BIOPROC E 2007. [DOI: 10.1007/bf03028638] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Prakash O, Upadhyay LSB. Immobilization imparts stability to watermelon urease to work in water miscible organic media. BIOTECHNOL BIOPROC E 2006. [DOI: 10.1007/bf02931898] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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