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  1. Article ; Online: Paraburkholderia tropica PKI7 and Kosakonia arachidis PKI8

    Ishita BISWAS / Pradeep K. DAS MOHAPATRA

    Notulae Scientia Biologicae, Vol 15, Iss

    Two newly reported tannase producing bacteria isolated from forest soil and study of their tannase producing potentiality

    2023  Volume 1

    Abstract: Tannins are the polyphenolic secondary metabolites of plants and having antimicrobial properties due to their protein precipitation abilities and other toxic effects towards microbes. However, with the help of an inducible enzyme called tannase, a ... ...

    Abstract Tannins are the polyphenolic secondary metabolites of plants and having antimicrobial properties due to their protein precipitation abilities and other toxic effects towards microbes. However, with the help of an inducible enzyme called tannase, a variety of microbes including bacteria can resist tannin toxicity. Tannase catalyses the dissociation of ester bonds in gallotannins like tannic acid, resulting in release of gallic acid and glucose. Because of its vast industrial applications and ease of manipulation, interest in identifying and applying bacteria as tannase producers has grown in recent years. The bacterial strains reported in the present work were isolated from soil and identified as Paraburkholderia tropica PKI7 and Kosakonia arachidis PKI8 through morphological, biochemical, and 16s rDNA molecular approach. Simultaneous tannase and gallic acid production by these two bacterial strains were observed through submerged fermentation. This is the first report of Paraburkholderia tropica PKI7 and Kosakonia arachidis PKI8 strains as tannase producing bacteria. The initial tannase production were 0.75 U/ml and 1.49 U/ml respectively for P. tropica PKI7 and K. arachidis PKI8 after 24 h of submerged fermentation while gallic acid release was 8.4 µg/ml and 10.74 µg/ml respectively. There is a potential scope in higher tannase and gallic acid biosynthesis by the two strains.
    Keywords 16S rDNA ; bacterial strains ; gallic acid ; submerged fermentation ; tannase ; tannin ; Agriculture (General) ; S1-972 ; Science (General) ; Q1-390
    Subject code 660
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher Society of Land Measurements and Cadastre from Transylvania (SMTCT)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Bioactive compounds as a potential inhibitor of colorectal cancer; an insilico study of Gallic acid and Pyrogallol

    Debanjan Mitra / Anumita Dey / Ishita Biswas / Pradeep Das Mohapatra

    Iranian Journal of Colorectal Research, Vol 9, Iss 1, Pp 32-

    2021  Volume 39

    Abstract: Abstract Introduction- Now a day’s colorectal cancer (CRC) is one of the most deadly cancers in the world. The objective of this investigation was to evaluate the protective effect of gallic acid and pyrogallol in colorectal cancer. Previous reports ... ...

    Abstract Abstract Introduction- Now a day’s colorectal cancer (CRC) is one of the most deadly cancers in the world. The objective of this investigation was to evaluate the protective effect of gallic acid and pyrogallol in colorectal cancer. Previous reports suggest that there is an association present between some tannase producing bacteria and colorectal cancer. Tannase hydrolyze tannic acid into gallic acid and pyrogallol. Are those compounds have any therapeutic effect on colorectal cancer? This study will help to find those quarries. Methods-The remedial effect of gallic acid and pyrogallol was studied by descriptor properties and molecular docking methods. 100 CRC causing protein structures were docked in this investigation. Results- Lipinski Rule of Five and other descriptor properties of those compounds have showed their nontoxic and therapeutic nature. Molecular docking studies have showed highest score -38.22 KJ/Mol with gallic acid and -33.6 KJ/Mol with pyrogallol. Conclusion- This is the first report on docking investigation of these large numbers of protein. The findings of this research concluded that gallic acid and pyrogallol have a protective effect in colorectal cancer by stopping the effect of those CRC causing protein.
    Keywords colorectal cancer ; descriptor properties ; molecular docking ; binding energy ; Medicine ; R
    Subject code 540
    Language English
    Publishing date 2021-03-01T00:00:00Z
    Publisher Shiraz University of Medical Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Application of egg shell with fortified vermicompost in Capsicum cultivation

    Ishita Biswas / Debasis Mitra / Debanjan Mitra / Sourav Chattaraj / Ansuman Senapati / Abhinobo Chakraborty / Goutam Basak / Pradeep Das Mohapatra

    International Journal of Recycling of Organic Waste in Agriculture, Vol 11, Iss 4, Pp 451-

    A strategy in waste management

    2022  Volume 461

    Abstract: Purpose Chicken eggshell (ES) is a global biowaste product of poultry industry and an enriched source of calcium required for plant growth. Therefore, the present study has been carried out to assess the potentiality of the combination of ES with ... ...

    Abstract Purpose Chicken eggshell (ES) is a global biowaste product of poultry industry and an enriched source of calcium required for plant growth. Therefore, the present study has been carried out to assess the potentiality of the combination of ES with vermicompost (VC) and chicken feather protein hydrolysate (CFPH) on growth and yield improvement of Capsicum plants.Method A field study was conducted through randomized block design (RBD) with eight treatments having three replicates for each. Principle Component Analysis (PCA) have performed to analyze the yield related parameters of plant. Nutritional components of VC and ES were also analyzed.Results The PCA analysis of the field experiment data has indicated that the combination of ES, CFPH and VC (in a ratio of 100:10:3) remarkably increased the agronomic parameters of capsicum plant about four folds as compared to its chemical counterpart and control, while together VC and ES strongly influences the characteristics of fruits. The first two dimensions of first and second PCA analysis showed 88.39 and 66.91 percent of the overall dataset inertia respectively, explaining 88.39 and 66.91 percent of the total variability. These two values are higher than their respective reference values of 36.32 and 46.76 percent indicating substantial variability.Conclusion The co-application of ES, CFPH with VC could enhance the yield parameters of crops by enriching the soil with both micro and macronutrients. It also serves as a source of organic compost with concomitant reduction in the use of chemical fertilizers.
    Keywords egg shell ; calcium ; vermicompost ; chicken feather protein hydrolysate ; capsicum ; Agriculture (General) ; S1-972 ; Environmental technology. Sanitary engineering ; TD1-1066
    Language English
    Publishing date 2022-12-01T00:00:00Z
    Publisher Islamic Azad University-Isfahan (Khorasgan) Branch- Iran
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Contributions of protein microenvironment in tannase industrial applicability

    Ishita Biswas / Debanjan Mitra / Amal Kumar Bandyopadhyay / Pradeep K. Das Mohapatra

    Heliyon, Vol 6, Iss 11, Pp e05359- (2020)

    An in-silico comparative study of pathogenic and non-pathogenic bacterial tannase

    2020  

    Abstract: Tannase is an inducible industrially important enzyme, produced by several microorganisms. A large number of bacteria have reported as tannase producers; however, some of them are pathogenic in nature. Therefore, it is quite uncertain whether the ... ...

    Abstract Tannase is an inducible industrially important enzyme, produced by several microorganisms. A large number of bacteria have reported as tannase producers; however, some of them are pathogenic in nature. Therefore, it is quite uncertain whether the application of these tannase enzymes from such pathogenic bacteria is suitable for industries and human welfare. Till date, there is no clear evidence regarding which group of bacteria (non-pathogenic or pathogenic) is better suited for their application in the edge of industries with particular reference to the food industry. The present study is following the findings of the above queries. In this study, a large number of tannase protein sequences have been retrieved from the databases, including both non-pathogenic and pathogenic bacterial species. Physiochemical and evolutionary properties of those sequences have been evaluated. Results have shown that non-pathogenic bacterial tannase possesses a high number of acidic and basic amino acid residues as compared to their pathogenic counterparts. The acidic and basic amino acid residues of tannase provide unique microenvironment to it. In the other hand, the numbers of disorder forming residues are higher in tannase sequences of pathogenic bacteria. The study of tannase microenvironment leads in the formation of salt bridges, which finally favoring the stability and proper functioning of tannase. This is the first report of such observation on tannase enzyme using in silico approach. Study of the microenvironment concept will be helpful in protein engineering.
    Keywords Biochemistry ; Bioinformatics ; Biotechnology ; Microbiology ; Molecular biology ; Proteins ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 612
    Language English
    Publishing date 2020-11-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Robust fabrication of thin film polyamide-TiO2 nanocomposite membranes with enhanced thermal stability and anti-biofouling propensity

    Behnam Khorshidi / Ishita Biswas / Tanushree Ghosh / Thomas Thundat / Mohtada Sadrzadeh

    Scientific Reports, Vol 8, Iss 1, Pp 1-

    2018  Volume 10

    Abstract: Abstract The development of nano-enabled composite materials has led to a paradigm shift in the manufacture of high-performance nanocomposite membranes with enhanced permeation, thermo-mechanical, and antibacterial properties. The major challenges to the ...

    Abstract Abstract The development of nano-enabled composite materials has led to a paradigm shift in the manufacture of high-performance nanocomposite membranes with enhanced permeation, thermo-mechanical, and antibacterial properties. The major challenges to the successful incorporation of nanoparticles (NPs) to polymer films are the severe aggregation of the NPs and the weak compatibility of NPs with polymers. These two phenomena lead to the formation of non-selective voids at the interface of the polymer and NPs, which adversely affect the separation performance of the membrane. To overcome these challenges, we have developed a new method for the fabrication of robust TFN reverse osmosis membranes. This approach relies on the simultaneous synthesis and surface functionalization of TiO2 NPs in an organic solvent (heptane) via biphasic solvothermal reaction. The resulting stable suspension of the TiO2 NPs in heptane was then utilized in the interfacial (in-situ) polymerization reaction where the NPs were entrapped within the matrix of the polyamide (PA) membrane. TiO2 NPs of 10 nm were effectively incorporated into the thin PA layer and improved the thermal stability and anti-biofouling properties of the resulting TFN membranes. These features make our synthesized membranes potential candidates for applications where the treatment of high-temperature streams containing biomaterials is desirable.
    Keywords Medicine ; R ; Science ; Q
    Subject code 620
    Language English
    Publishing date 2018-01-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Valorization of vermicompost with bacterial fermented chicken feather hydrolysate for the yield improvement of tomato plant

    Ishita Biswas / Debasis Mitra / Ansuman Senapati / Debanjan Mitra / Sourav Chattaraj / Murshed Ali / Goutam Basak / Periyasamy Panneerselvam / Pradeep K. Das Mohapatra

    International Journal of Recycling of Organic Waste in Agriculture, Vol 10, Iss 1, Pp 29-

    A novel organic combination

    2021  Volume 42

    Abstract: Purpose Chicken feather protein hydrolysate (CFPH) has drawn a significant attention as a component/type of biofertilizer in recent years, because of the beneficial impact on the growth of the plant. The current study aims to evaluate the potential ... ...

    Abstract Purpose Chicken feather protein hydrolysate (CFPH) has drawn a significant attention as a component/type of biofertilizer in recent years, because of the beneficial impact on the growth of the plant. The current study aims to evaluate the potential influence of the combination of CFPH with vermicompost (VC) on growth-promotion and yield improvement in tomato plants. Method Feather degrading bacteria were isolated and characterized using 16s-rDNA sequencing, and assessed for biochemical reactions, growth-promoting attributes and keratinase activity. The medium used for feather degradation studies consisted of 0.75% (w/v) of raw feather, with 1% (v/v) of inoculum at 37°C, pH 7.5 and at 120 rpm. A field study was done by randomized block design (RBD) with five treatments in tomato. Results Keratinolytic and feather degrading bacteria isolated and used in this study were identified as Bacillus cereus PKID1 with accession number MT158702. The bacterium gave the highest keratinase activity of 80±0.28 U/ml. The CFPH showed the potential to promote remarkably the germination % of tomato (84.13), rice (87.24), onion (84.13), chilli (84.13), chickpea (73.24) seeds

    field experiment significantly increased plant growth and yield compared with control. Conclusion The principal component analysis of the field experiment as a result of tomato plant-growth, the order of best treatment efficacy for improvement of parameter estimates was as follows: CFPH and VC > CFPH > VC > recommended dose of fertilizers (RDF) > control. Thus, the application of CFPH with VC could improve the productivity of crops and decrease the use of chemical fertilizers.
    Keywords fertilizer ; fermentation ; keratinase ; 16s-rdna ; Agriculture (General) ; S1-972 ; Environmental technology. Sanitary engineering ; TD1-1066
    Subject code 630
    Language English
    Publishing date 2021-03-01T00:00:00Z
    Publisher Islamic Azad University Publishing
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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