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  1. Article ; Online: A xylan from the fresh leaves of Piper betle: Structural characterization and studies of bioactive properties.

    Bhanja, Sunil Kumar / Maity, Prasenjit / Rout, Dilip / Sen, Ipsita Kumar / Patra, Sukesh

    Carbohydrate polymers

    2022  Volume 291, Page(s) 119570

    Abstract: A pure water soluble xylan (PS-I) with an average molecular weight ~1.1 × ... ...

    Abstract A pure water soluble xylan (PS-I) with an average molecular weight ~1.1 × 10
    MeSH term(s) Antioxidants/chemistry ; Piper betle ; Plant Leaves ; Water ; Xylans/pharmacology
    Chemical Substances Antioxidants ; Xylans ; Water (059QF0KO0R)
    Language English
    Publishing date 2022-05-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 1501516-6
    ISSN 1879-1344 ; 0144-8617
    ISSN (online) 1879-1344
    ISSN 0144-8617
    DOI 10.1016/j.carbpol.2022.119570
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A xylan from the fresh leaves of Piper betle: Structural characterization and studies of bioactive properties

    Bhanja, Sunil Kumar / Maity, Prasenjit / Rout, Dilip / Sen, Ipsita Kumar / Patra, Sukesh

    Carbohydrate Polymers. 2022 Sept., v. 291 p.119570-

    2022  

    Abstract: A pure water soluble xylan (PS-I) with an average molecular weight ~1.1 × 10⁵ Da was isolated from the hot water extraction of fresh leaves of Piper betle (paan). The xylan was found to be composed of xylose, galactose and methyl galacturonate in a molar ...

    Abstract A pure water soluble xylan (PS-I) with an average molecular weight ~1.1 × 10⁵ Da was isolated from the hot water extraction of fresh leaves of Piper betle (paan). The xylan was found to be composed of xylose, galactose and methyl galacturonate in a molar ratio of nearly 3:1:1. The repeating unit was composed of a backbone containing three (1 → 4)-α-D-Xylp residues, one of which was branched at O-2 position with the side chain consisting of (1 → 4)-α-D-GalpA6Me and terminal β-D-Galp residues. This xylan exhibited macrophage, splenocyte, and thymocyte stimulatory activities. In vitro antioxidant studies demonstrated that the xylan has DPPH radical scavenging potential (EC₅₀ = 148 μg/mL), ABTS radical quenching activity (EC₅₀ = 188 μg/mL) and ferrous ions chelating activity (EC₅₀ = 370 μg/mL). These findings elicit the need for further exploration of the xylan as a natural antioxidant and a potent immunostimulating agent.
    Keywords Piper betle ; antioxidants ; galactose ; immunostimulants ; macrophages ; molecular weight ; splenocytes ; thymocytes ; water solubility ; xylan ; xylose ; Antioxidant properties ; Immunostimulation ; NMR studies
    Language English
    Dates of publication 2022-09
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 1501516-6
    ISSN 1879-1344 ; 0144-8617
    ISSN (online) 1879-1344
    ISSN 0144-8617
    DOI 10.1016/j.carbpol.2022.119570
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: A review on antiviral and immunomodulatory polysaccharides from Indian medicinal plants, which may be beneficial to COVID-19 infected patients.

    Sen, Ipsita Kumar / Chakraborty, Indranil / Mandal, Amit Kumar / Bhanja, Sunil Kumar / Patra, Sukesh / Maity, Prasenjit

    International journal of biological macromolecules

    2021  Volume 181, Page(s) 462–470

    Abstract: The emergence of the novel coronavirus, SARS-CoV-2 has pushed forward the world to experience the first pandemic of this century. Any specific drug against this RNA virus is yet to be discovered and presently, the COVID-19 infected patients are being ... ...

    Abstract The emergence of the novel coronavirus, SARS-CoV-2 has pushed forward the world to experience the first pandemic of this century. Any specific drug against this RNA virus is yet to be discovered and presently, the COVID-19 infected patients are being treated symptomatically. During the last few decades, a number of polysaccharides with potential biological activities have been invented from Indian medicinal plants. Many polysaccharides, such as sulfated xylomannan, xylan, pectins, fucoidans, glucans, glucoarabinan, and arabinoxylan from Indian medicinal plants, have been shown to exhibit antiviral and immunomodulating activities. Plant polysaccharides exhibit antiviral activities through interference with the viral life cycle and inhibition of attachment of virus to host cell. Intake of certain immune stimulating plant polysaccharides may also protect from the virus to a certain extent. In process of continuous search for most potent drug, Indian plant polysaccharides may emerge as significant biomaterial to combat COVID-19. This review explores a number of polysaccharides from Indian medicinal plants which showed antiviral and immunomodulating activities. It is aimed to provide an overview about the composition, molecular mass, branching configuration and related bioactivities of polysaccharides which is crucial for their classification as possible drug to induce immune response in viral diseases.
    MeSH term(s) Antiviral Agents/pharmacology ; COVID-19/epidemiology ; COVID-19/immunology ; Humans ; Immunity/drug effects ; India/epidemiology ; Pandemics ; Plant Extracts/immunology ; Plant Extracts/pharmacology ; Plants, Medicinal/metabolism ; Polysaccharides/immunology ; Polysaccharides/pharmacology ; SARS-CoV-2/drug effects ; SARS-CoV-2/isolation & purification ; COVID-19 Drug Treatment
    Chemical Substances Antiviral Agents ; Plant Extracts ; Polysaccharides
    Language English
    Publishing date 2021-03-29
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2021.03.162
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Treatment of petroleum refinery sludge by petroleum degrading bacterium

    Behera, Ipsita Dipamitra / Basak, Geetanjali / Kumar, Ravi Ranjan / Sen, Ramkrishna / Meikap, Bhim Charan

    Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering

    2020  Volume 56, Issue 2, Page(s) 226–239

    Abstract: Petroleum hydrocarbons (PHCs) in petroleum refinery sludge (PRS) are the most adverse components because of their toxic nature, which are harmful to human health and the aquatic ecosystem. This study aimed to identify and characterize an indigenous ... ...

    Abstract Petroleum hydrocarbons (PHCs) in petroleum refinery sludge (PRS) are the most adverse components because of their toxic nature, which are harmful to human health and the aquatic ecosystem. This study aimed to identify and characterize an indigenous bacterium isolated from PRS of Indian oil corporation ltd. (IOCL), Haldia, India, and evaluate its performance for biodegradation of total petroleum hydrocarbon (TPH) of PRS. The bacterium molecularly characterized as
    MeSH term(s) Biodegradation, Environmental ; Ecosystem ; Humans ; India ; Models, Theoretical ; Petroleum/analysis ; Petroleum/metabolism ; Phylogeny ; Polycyclic Aromatic Hydrocarbons/analysis ; Polycyclic Aromatic Hydrocarbons/metabolism ; RNA, Ribosomal, 16S/genetics ; Sewage/chemistry ; Sewage/microbiology ; Soil Microbiology ; Soil Pollutants/analysis ; Soil Pollutants/metabolism ; Stenotrophomonas/growth & development ; Stenotrophomonas/isolation & purification
    Chemical Substances Petroleum ; Polycyclic Aromatic Hydrocarbons ; RNA, Ribosomal, 16S ; Sewage ; Soil Pollutants
    Language English
    Publishing date 2020-12-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 196584-0
    ISSN 1532-4117 ; 0360-1226 ; 1077-1204 ; 1093-4529
    ISSN (online) 1532-4117
    ISSN 0360-1226 ; 1077-1204 ; 1093-4529
    DOI 10.1080/10934529.2020.1866924
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Structural studies of immunomodulatory (1 → 3)-, (1 → 4)-α glucan from an edible mushroom Polyporus grammocephalus

    Patra, Sukesh / Maity, Prasenjit / Chakraborty, Indranil / Sen, Ipsita Kumar / Ghosh, Debosree / Rout, Dilip / Bhanja, Sunil Kumar

    International journal of biological macromolecules. 2021 Jan. 31, v. 168

    2021  

    Abstract: A water soluble polysaccharide (PGPS) with molecular weight ~ 1.4 × 10⁵ Da was isolated by alkali treatment from an edible mushroom Polyporus grammocephalus and purified by gel chromatography using sepharose-6B column. Monosaccharide analysis revealed ... ...

    Abstract A water soluble polysaccharide (PGPS) with molecular weight ~ 1.4 × 10⁵ Da was isolated by alkali treatment from an edible mushroom Polyporus grammocephalus and purified by gel chromatography using sepharose-6B column. Monosaccharide analysis revealed that PGPS was made up of glucose only. PGPS contained (1 → 3)-α-D-Glcp and (1 → 4)-α-D-Glcp moieties in a molar ratio of nearly 1:2. Through a series of chemical and spectroscopic (1D/2D NMR) investigations, the repeating unit of the glucan was established as:→3)-α-D-Glcp(1 → [4)-α-D-Glcp(1]₂→This α-glucan was observed to stimulate some prime components of immune system, namely, macrophages, splenocytes, and thymocytes.
    Keywords Polyporus ; alkali treatment ; gel chromatography ; glucans ; glucose ; macrophages ; molecular weight ; mushrooms ; splenocytes ; thymocytes ; water solubility
    Language English
    Dates of publication 2021-0131
    Size p. 649-655.
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2020.11.121
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  6. Article ; Online: Structural studies of immunomodulatory (1 → 3)-, (1 → 4)-α glucan from an edible mushroom Polyporus grammocephalus.

    Patra, Sukesh / Maity, Prasenjit / Chakraborty, Indranil / Sen, Ipsita Kumar / Ghosh, Debosree / Rout, Dilip / Bhanja, Sunil Kumar

    International journal of biological macromolecules

    2020  Volume 168, Page(s) 649–655

    Abstract: A water soluble polysaccharide (PGPS) with molecular weight ~ 1.4 × ... ...

    Abstract A water soluble polysaccharide (PGPS) with molecular weight ~ 1.4 × 10
    MeSH term(s) Adjuvants, Immunologic/chemistry ; Adjuvants, Immunologic/isolation & purification ; Adjuvants, Immunologic/pharmacology ; Animals ; Carbohydrate Sequence ; Cell Proliferation/drug effects ; Chromatography, Gel ; Glucans/chemistry ; Glucans/isolation & purification ; Glucans/pharmacology ; Lipopolysaccharides/immunology ; Mice ; Polyporus/chemistry ; RAW 264.7 Cells ; Salmonella typhimurium/chemistry ; Salmonella typhimurium/immunology ; Spleen/cytology ; Spleen/drug effects ; Spleen/immunology ; Thymocytes/cytology ; Thymocytes/drug effects ; Thymocytes/immunology
    Chemical Substances Adjuvants, Immunologic ; Glucans ; Lipopolysaccharides
    Language English
    Publishing date 2020-11-19
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2020.11.121
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Treatment of petroleum refinery sludge by petroleum degrading bacterium Stenotrophomonas pavanii IRB19 as an efficient novel technology

    Behera, Ipsita Dipamitra / Basak, Geetanjali / Kumar, Ravi Ranjan / Sen, Ramkrishna / Meikap, Bhim Charan

    Journal of environmental science and health. 2020 Dec. 22, v. 56, no. 2

    2020  

    Abstract: Petroleum hydrocarbons (PHCs) in petroleum refinery sludge (PRS) are the most adverse components because of their toxic nature, which are harmful to human health and the aquatic ecosystem. This study aimed to identify and characterize an indigenous ... ...

    Abstract Petroleum hydrocarbons (PHCs) in petroleum refinery sludge (PRS) are the most adverse components because of their toxic nature, which are harmful to human health and the aquatic ecosystem. This study aimed to identify and characterize an indigenous bacterium isolated from PRS of Indian oil corporation ltd. (IOCL), Haldia, India, and evaluate its performance for biodegradation of total petroleum hydrocarbon (TPH) of PRS. The bacterium molecularly characterized as Stenotrophomonas sp. IRB19 by 16S rRNA sequencing and phylogenetic analysis. The strain IRB19 showed a significant ability to utilize four different oils (kerosene, diesel, petrol and hexadecane) in-vitro. IRB19 could able to degrade up to 65 ± 2.4% of TPH in 28 d of incubation. Solvent extraction study showed that PRS contain 180.57 ± 3.44 g kg⁻¹ of TPH and maltene fraction composed of aliphatic, aromatics and polar components of 52 ± 4, 39 ± 2 and 9 ± 1%, respectively. The TPH degradation best fitted for the Gompertz model and followed the first-order kinetics having the rate constant (k) and half-life period (t ₁/₂) of 0.036 d⁻¹ and 19 d, respectively. Results of this study verified the suitability of the novel strain IRB19 for the biodegradation of PHCs.
    Keywords Stenotrophomonas ; aquatic ecosystems ; aromatic compounds ; bacteria ; biodegradation ; corporations ; gasoline ; half life ; hexadecane ; human health ; kerosene ; logit analysis ; oil and gas industry ; oils ; petroleum ; phylogeny ; sludge ; solvents ; technology ; toxicity ; India
    Language English
    Dates of publication 2020-1222
    Size p. 226-239.
    Publishing place Taylor & Francis
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 196584-0
    ISSN 1532-4117 ; 0360-1226 ; 1077-1204 ; 1093-4529
    ISSN (online) 1532-4117
    ISSN 0360-1226 ; 1077-1204 ; 1093-4529
    DOI 10.1080/10934529.2020.1866924
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: Flocculating, emulsification and metal sorption properties of a partial characterized novel exopolysaccharide produced by Rhizobium tropici SRA1 isolated from Psophocarpus tetragonolobus (L) D.C.

    Das, Sandip / Sen, Ipsita Kumar / Kati, Ahmet / Some, Sudip / Mandal, Amit Kumar / Islam, Syed Sirajul / Bhattacharyya, Rabindranath / Mukhopadhyay, Aparna

    International microbiology : the official journal of the Spanish Society for Microbiology

    2018  Volume 22, Issue 1, Page(s) 91–101

    Abstract: A novel exopolysaccharide (EPS) was produced by a bacterium which was isolated from Psophocarpus tetragonolobus (L) D.C. and identified as 99% Rhizobium tropici SRA1 by 16S rDNA sequencing. The flocculating performances along with emulsifying activity ... ...

    Abstract A novel exopolysaccharide (EPS) was produced by a bacterium which was isolated from Psophocarpus tetragonolobus (L) D.C. and identified as 99% Rhizobium tropici SRA1 by 16S rDNA sequencing. The flocculating performances along with emulsifying activity began simultaneously with the growth and the production of EPS and reached its utmost at 28 h. EPS was purified via chilled ethanol precipitation followed by dialysis and lyophilization. The existence of hydroxyl, methoxyl, and carboxylic functional groups were confirmed by Fourier transform infrared (FT-IR) spectrum. EPS was found to be compose of 82.44% neutral sugar and 15.93% uronic acid. The average molecular weight of the exopolysaccharide was estimated as ~ 1.8 × 10
    MeSH term(s) Chromatography, Gas ; Chromatography, Liquid ; Cluster Analysis ; DNA, Bacterial/chemistry ; DNA, Bacterial/genetics ; DNA, Ribosomal/chemistry ; DNA, Ribosomal/genetics ; Emulsions ; Fabaceae/microbiology ; Flocculation ; Metals/metabolism ; Phylogeny ; Polysaccharides, Bacterial/chemistry ; Polysaccharides, Bacterial/isolation & purification ; Polysaccharides, Bacterial/metabolism ; RNA, Ribosomal, 16S/genetics ; Rhizobium tropici/classification ; Rhizobium tropici/genetics ; Rhizobium tropici/isolation & purification ; Rhizobium tropici/metabolism ; Sequence Analysis, DNA ; Spectroscopy, Fourier Transform Infrared ; Sugars/analysis ; Temperature ; Uronic Acids/analysis
    Chemical Substances DNA, Bacterial ; DNA, Ribosomal ; Emulsions ; Metals ; Polysaccharides, Bacterial ; RNA, Ribosomal, 16S ; Sugars ; Uronic Acids
    Language English
    Publishing date 2018-08-31
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1454951-7
    ISSN 1618-1905 ; 1139-6709
    ISSN (online) 1618-1905
    ISSN 1139-6709
    DOI 10.1007/s10123-018-0031-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Transjugular Versus Percutaneous Liver Biopsy in Children: Indication, Success, Yield, and Complications.

    Srivastava, Anshu / Prasad, Durga / Panda, Ipsita / Yadav, Rajanikant / Jain, Manoj / Sarma, Moinak Sen / Prasad, Raghunandan / Poddar, Ujjal / Yachha, Surender Kumar

    Journal of pediatric gastroenterology and nutrition

    2019  Volume 70, Issue 4, Page(s) 417–422

    Abstract: Background/objective: Percutaneous biopsy (PB) and transjugular liver biopsy (TJLB) are 2 main ways of obtaining liver tissue. We evaluated the indications, success rate, tissue yield, and complications of TJLB in comparison to PB in children.: ... ...

    Abstract Background/objective: Percutaneous biopsy (PB) and transjugular liver biopsy (TJLB) are 2 main ways of obtaining liver tissue. We evaluated the indications, success rate, tissue yield, and complications of TJLB in comparison to PB in children.
    Methods: Electronic records of children undergoing liver biopsy (LB) were reviewed. Clinico laboratory data including indication, type of biopsy, complications, and tissue yield (length and number of complete portal tracts [CPT]) were noted.
    Results: Five hundred forty LB (indication: neonatal cholestasis [42.9%], chronic liver disease [43.7%], liver failure [3.7%], focal lesions [3.3%] and others [6.3%]) were done. Four hundred seventy-three were PB (317 boys, 14 [1--216] months) done by percussion (322 [68%]), real-time ultrasound guidance (125 [26.4%]), or plugged method [26 (5.5%)]. Sixty-seven (12.4%) were TJLB [38 boys, 140 (24--216) months], done in patients with contraindications for PB. Technical success (67/68 vs 473/473; P = 0.7) and complications (4 [6%]; vs 15 [3.3%]; P = 0.2) of TJLB and PB were similar. Major complications (0.5%) included supraventricular tachycardia (n = 1) in TJLB and hemoperitoneum (n = 2) in PB. Tissue yield of TJLB was poorer in terms of length (1.0 [0.2--2.0] vs 1.1 [0.4--2.1] cm; P < 0.001), CPT (4 [0--9] vs 5 [2--17]; P < 0.001) and adequacy for reporting (56/67 vs 459/473; P < 0.001). Biopsy yield of <6 CPT was predicted by cirrhosis at histology and TJLB. No factor identified risk of complications with LB.
    Conclusions: LB is a safe procedure and only 12% children require TJLB because of contraindications of PB. Technical success and complications are similar but tissue yield is poorer in TJLB than PB. Presence of cirrhosis and TJLB adversely affected tissue yield.
    MeSH term(s) Biopsy ; Biopsy, Needle ; Child ; Humans ; Infant, Newborn ; Jugular Veins/diagnostic imaging ; Liver ; Liver Diseases/etiology ; Male
    Language English
    Publishing date 2019-12-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603201-1
    ISSN 1536-4801 ; 0277-2116
    ISSN (online) 1536-4801
    ISSN 0277-2116
    DOI 10.1097/MPG.0000000000002587
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  10. Article ; Online: Effect of feed supplementation with biosynthesized silver nanoparticles using leaf extract of Morus indica L. V1 on Bombyx mori L. (Lepidoptera: Bombycidae).

    Some, Sudip / Bulut, Onur / Biswas, Kinkar / Kumar, Anoop / Roy, Anupam / Sen, Ipsita Kumar / Mandal, Amitava / Franco, Octavio L / İnce, İkbal Agah / Neog, Kartik / Das, Sandip / Pradhan, Sayantan / Dutta, Subhadeep / Bhattacharjya, Debjoy / Saha, Soumen / Das Mohapatra, Pradeep K / Bhuimali, Anil / Unni, B G / Kati, Ahmet /
    Mandal, Amit Kumar / Yilmaz, M Deniz / Ocsoy, Ismail

    Scientific reports

    2019  Volume 9, Issue 1, Page(s) 14839

    Abstract: Herein, we report the synthesis of silver nanoparticles (AgNPs) by a green route using the aqueous leaf extract of Morus indica L. V1. The synthesized AgNPs exhibited maximum UV-Vis absorbance at 460 nm due to surface plasmon resonance. The average ... ...

    Abstract Herein, we report the synthesis of silver nanoparticles (AgNPs) by a green route using the aqueous leaf extract of Morus indica L. V1. The synthesized AgNPs exhibited maximum UV-Vis absorbance at 460 nm due to surface plasmon resonance. The average diameter (~54 nm) of AgNPs was measured from HR-TEM analysis. EDX spectra also supported the formation of AgNPs, and negative zeta potential value (-14 mV) suggested its stability. Moreover, a shift in the carbonyl stretching (from 1639 cm
    MeSH term(s) Animals ; Anti-Bacterial Agents/pharmacology ; Bombyx/drug effects ; Bombyx/growth & development ; Escherichia coli/drug effects ; Green Chemistry Technology ; Hep G2 Cells ; Humans ; Larva/drug effects ; Larva/growth & development ; Metal Nanoparticles/chemistry ; Morus/chemistry ; Plant Extracts/pharmacology ; Plant Leaves/chemistry ; Silver/chemistry ; Staphylococcus aureus/drug effects
    Chemical Substances Anti-Bacterial Agents ; Plant Extracts ; Silver (3M4G523W1G)
    Language English
    Publishing date 2019-10-16
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-019-50906-6
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