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1. Rhamnolipid from Pseudomonas desmolyticum NCIM-2112 and its role in the degradation of Brown 3REL

Author:
Jadhav, Mital; Kalme, Satish; Tamboli, Dhawal; Govindwar, Sanjay
Source:
Journal of basic microbiology 2011 v.51 no.4 pp. 385-396
ISSN:
0233-111X
Subject:
Bacillus (bacteria); Fourier transform infrared spectroscopy; Pseudomonas; alcohol oxidase; biodegradation; biosurfactants; carbon; cell free system; cetyltrimethylammonium bromide; chemical structure; culture media; decolorization; dyes; emulsifying; fabrics; gas chromatography-mass spectrometry; hexadecane; lignin peroxidase; nuclear magnetic resonance spectroscopy; polysorbates; rhamnose; stable isotopes; vegetable oil
Abstract:
... The biosurfactant produced by Pseudomonas desmolyticum NCIM 2112 (Pd 2112) was confirmed as rhamnolipid based on the formation of dark blue halos around the colonies in CTAB-methylene blue agar plates and the content of rhamnose sugar. The average yield of rhamnolipid was 0.398 g/l/day when grown on hexadecane as sole carbon source. Pd 2112 emulsification potential associated with cell free cultur ...
DOI:
10.1002/jobm.201000364

2. Polypyrrole nanowires network for convenient and highly efficient microextraction in packed syringe

Author:
Bagheri, Habib; Ayazi, Zahra
Source:
Analytical methods 2011 v.3 no.11 pp. 2630-2636
ISSN:
1759-9679
Subject:
acetonitrile; cetyltrimethylammonium bromide; chemical species; desorption; detection limit; gas chromatography-mass spectrometry; micelles; microextraction; monitoring; nanowires; polymers; pyrroles; rivers; scanning electron microscopy; triazine herbicides; water analysis
Abstract:
... A novel method based on microextraction in packed syringe (MEPS), as a sample preparation technique in combination with gas chromatography-mass spectrometry (GC-MS) was developed using a polypyrrole (PPy) nanowires network as the extracting medium. The PPy nanowires network was prepared using a soft template technique and its characterization was studied by scanning electron microscopy (SEM). The ...
DOI:
10.1039/c1ay05373f

3. Reinforced polydiphenylamine nanocomposite for microextraction in packed syringe of various pesticides

Author:
Bagheri, Habib; Ayazi, Zahra; Es’haghi, Ali; Aghakhani, Ali
Source:
Journal of chromatography 2012 v.1222 pp. 13-21
ISSN:
0021-9673
Subject:
aquatic environment; carbon nanotubes; cetyltrimethylammonium bromide; desorption; detection limit; diphenylamine; gas chromatography-mass spectrometry; hexane; microextraction; monitoring; nanocomposites; oxidation; pesticide residues; propionic acid; river water; scanning electron microscopy; sulfuric acid; surfactants; triazines; water pollution
Abstract:
... Reinforced polydiphenylamine (PDPA) nanocomposite was synthesized by oxidation of diphenylamine in 4molL⁻¹ sulfuric acid solution containing a fixed amount of carbon nanotubes (CNTs) in the presence of cetyltrimethylammonium bromide (CTAB). The surface characteristic of PDPA and PDPA/CNT nanocomposites was investigated using scanning electron microscopy (SEM). The prepared PDPA/CNT nanocomposite w ...
DOI:
10.1016/j.chroma.2011.11.063

4. Multiresidue determination of pesticides from aquatic media using polyaniline nanowires network as highly efficient sorbent for microextraction in packed syringe

Author:
Bagheri, Habib; Alipour, Noshin; Ayazi, Zahra
Source:
Analytica chimica acta 2012 v.740 pp. 43-49
ISSN:
0003-2670
Subject:
cetyltrimethylammonium bromide; desorption; detection limit; gas chromatography-mass spectrometry; micelles; microextraction; monitoring; multiresidue analysis; nanowires; pH; pesticides; polymers; river water; scanning electron microscopy; solvents; triazines
Abstract:
... A simple, rapid and sensitive method based on microextraction in packed syringe (MEPS), in combination with gas chromatography–mass spectrometry (GC–MS) was developed. Polyaniline (PANI) nanowires network was synthesized and used as sorbent of MEPS for the multiresidue determination of selected analytes from triazine, organochlrorine and organophosphorous pesticides in aqueous samples. The PANI na ...
DOI:
10.1016/j.aca.2012.06.026

5. Dispersive microextraction based on magnetic polypyrrole nanowires for the fast determination of pesticide residues in beverage and environmental water samples

Author:
Zhao, Qin; Lu, Qian; Feng, Yu-Qi
Source:
Analytical and bioanalytical chemistry 2013 v.405 no.14 pp. 4765-4776
ISSN:
1618-2642
Subject:
adsorption; beverages; cetyltrimethylammonium bromide; correlation; gas chromatography-mass spectrometry; juices; magnetic materials; microextraction; nanoparticles; nanowires; permeability; pesticide residues; pesticides; polymerization; pyrethrins; solid phase extraction; solvents
Abstract:
... In this study, magnetic polypyrrole nanowires (mPPYs) were fabricated via a simple co-mixing method based on an “aggregation-wrap” mechanism. The polypyrrole (PPy) nanowires were synthesized by in situ chemical oxidative polymerization using cetyltrimethylammonium bromide as the “soft template” and the magnetic nanoparticles (MNPs) prepared using solvothermal methods. Typically, when these two nan ...
DOI:
10.1007/s00216-013-6866-5

6. Development of mixed bacterial cultures DAK11 capable for degrading mixture of polycyclic aromatic hydrocarbons (PAHs)

Author:
Patel, Avani Bharatkumar; Mahala, Krutika; Jain, Kunal; Madamwar, Datta
Source:
Bioresource technology 2018 v.253 pp. 288-296
ISSN:
0960-8524
Subject:
NPK fertilizers; anionic surfactants; cationic surfactants; cetyltrimethylammonium bromide; gas chromatography-mass spectrometry; heavy metals; lubricants; marine sediments; metabolism; molecular weight; mutagens; oils; pollutants; polycyclic aromatic hydrocarbons; zinc
Abstract:
... Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous and persistent pollutants having mutagenic and carcinogenic properties. Microbial metabolism is an alternative approach for removal of PAHs from polluted environment. Mixed bacterial cultures DAK11 capable for degrading mixture of PAHs was developed from long term polluted marine sediments. DAK11 was able to degrade 500 mg/L of mixture of four ...
DOI:
10.1016/j.biortech.2018.01.049

7. Green synthesis of silver nanoparticles using leaf extract of Acalypha hispida and its application in blood compatibility

Author:
Selvakumar, P.; Sithara, R.; Viveka, K.; Sivashanmugam, P.
Source:
Journal of photochemistry and photobiology 2018 v.182 pp. 52-61
ISSN:
1011-1344
Subject:
Acalypha hispida; Fourier transform infrared spectroscopy; X-ray diffraction; anti-inflammatory activity; aqueous solutions; biocompatibility; blood; cetyltrimethylammonium bromide; color; drug carriers; gas chromatography-mass spectrometry; leaf extracts; moieties; nanosilver; silver nitrate; transmission electron microscopy; ultraviolet-visible spectroscopy
Abstract:
... The blood compatibility of AgNPs is of great relevance as it has good antifungal, antibacterial and anti-inflammatory properties and the toxicological information of their effects on cells need to be analyzed before using it as drug carriers in the biomedical field. The present study deals with the synthesis of AgNPs from an aqueous solution of silver nitrate using Acalypha hispida leaf extract as ...
DOI:
10.1016/j.jphotobiol.2018.03.018

8. Isolation and characterization of biosurfactant-producing and diesel oil degrading Pseudomonas sp. CQ2 from Changqing oil field, China

Author:
Sun, Wuyang; Cao, Wenrui; Jiang, Mingyu; Saren, Gaowa; Liu, Jiwei; Cao, Jiangfei; Ali, Imran; Yu, Xinke; Peng, Changsheng; Naz, Iffat
Source:
RSC advances 2018 v.8 no.69 pp. 39710-39720
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; Pseudomonas; bacteria; biosurfactants; carbon; cetyltrimethylammonium bromide; diesel fuel; emulsifying; emulsifying properties; gas chromatography-mass spectrometry; glucose; glycolipids; hydrocarbons; micelles; nucleotide sequences; oil fields; pH; remediation; ribosomal DNA; salinity; screening; soil; surface tension; temperature; thin layer chromatography; China
Abstract:
... In the present research investigation, 13 indigenous bacteria (from CQ1 to CQ13) were isolated from soil collected from Changqing oil field of Xi'an, China. Four promising biosurfactant producers (CQ1, CQ2, CQ4, and CQ13) were selected through primary screening among these 13 strains, including via drop collapse and oil-spreading methods. However, only the strain CQ2 showed the best biosurfactant ...
DOI:
10.1039/c8ra07721e

9. Production and Characterization of Biosurfactant from Corynebacterium Species and Its Effect on the Growth of Petroleum Degrading Bacteria

Author:
Dwivedi, A.; Kumar, A.; Bhat, J. L.
Source:
Microbiology 2019 v.88 no.1 pp. 87-93
ISSN:
0026-2617
Subject:
Corynebacterium; agar; alkenes; amines; bacteria; bioremediation; biosurfactants; carboxylic acids; cetyltrimethylammonium bromide; gas chromatography-mass spectrometry; glycolipids; hemolysis; methylene blue; moieties; nucleotide sequences; petroleum; ribosomal RNA; sequence analysis; thin layer chromatography
Abstract:
... Present study was carried out to isolate the effective bacterial strains for the degradation of petroleum hydrocarbons and biosurfactant production. The bacterial strains were screened for production of biosurfactant by CTAB methylene blue agar assay, hemolytic activity assay and drop collapse assay. The selected strain was identified as Corynebacterium species by 16S rRNA sequence analysis. Biosu ...
DOI:
10.1134/S002626171901003X

10. Catalytic fast pyrolysis of rice husk over hierarchical micro-mesoporous composite molecular sieve: Analytical Py-GC/MS study

Author:
Li, Zhaoying; Zhong, Zhaoping; Zhang, Bo; Wang, Wei; Wu, Weitao
Source:
Journal of analytical and applied pyrolysis 2019 v.138 pp. 103-113
ISSN:
0165-2370
Subject:
aromatic compounds; catalysts; catalytic activity; cetyltrimethylammonium bromide; gas chromatography-mass spectrometry; hydrocarbons; pyrolysis; sodium hydroxide; temperature; transmission electron microscopy
Abstract:
... In order to promote efficient production of hydrocarbons, catalytic fast pyrolysis (CFP) of rice husk (RH) over catalysts is performed using Py-GC/MS. The catalyst is hierarchical micro-mesoporous composite molecular sieve prepared under different conditions including different concentrations (1.5 mol/L, 2.0 mol/L, 2.5 mol/L, 3.0 mol/L) of NaOH solution, different mass fraction of cetyltrimethylam ...
DOI:
10.1016/j.jaap.2018.12.013

11. Enhanced production, one-step affinity purification, and characterization of laccase from solid-state culture of Lentinus tigrinus and delignification of pistachio shell by free and immobilized enzyme

Author:
Sadeghian-Abadi, Salar; Rezaei, Shahla; Yousefi-Mokri, Mahsa; Faramarzi, Mohammad Ali
Source:
Journal of environmental management 2019 v.244 pp. 235-246
ISSN:
0301-4797
Subject:
Lentinus tigrinus; calcium; cetyltrimethylammonium bromide; chemical bonding; copper; delignification; ethyl acetate; gas chromatography-mass spectrometry; immobilized enzymes; industry; laccase; lignin; lignocellulose; magnetism; metal ions; pH; pistachios; redox potential; scanning electron microscopy; solid state culture; solid state fermentation; solvents; surfactants; wastes
Abstract:
... Laccase mediated bio-delignification has shown promising results for the removal of lignin from bio-wastes and for providing a sustainable future for using of lignocellulosic materials in different industries. This study reports an extracellular laccase from Lentinus tigrinus with delignification capability. The production of laccase was enhanced through a solid-state fermentation on the pistachio ...
DOI:
10.1016/j.jenvman.2019.05.058

12. Characterization of biosurfactant produced by the endophyte Burkholderia sp. WYAT7 and evaluation of its antibacterial and antibiofilm potentials

Author:
A, Ashitha.; E.K, Radhakrishnan.; Mathew, Jyothis
Source:
Journal of biotechnology 2020 v.313 pp. 1-10
ISSN:
0168-1656
Subject:
Artemisia; Bacillus subtilis; Burkholderia; Escherichia coli; Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Salmonella; Staphylococcus aureus; agar; antibacterial properties; antibiotics; bacteria; biosurfactants; cetyltrimethylammonium bromide; culture media; endophytes; esters; fatty acids; gas chromatography-mass spectrometry; glycolipids; glycosidic linkages; hydrocarbons; medicinal plants; methylene blue; pathogens; screening
Abstract:
... The endophyte Burkholderia sp. WYAT7 isolated from the medicinal plant Artemisia nilagirica (Clarke) Pamp. was analyzed for its ability to produce biosurfactant. The evaluation of biosurfactant production was conducted using different screening methods which confirmed the presence of biosurfactant in the culture supernatant. CTAB- methylene blue agar plate method was used for the screening of glyc ...
DOI:
10.1016/j.jbiotec.2020.03.005

13. Molecular Approaches for the Improvement of Under-Researched Tropical Fruit Trees: Jackfruit, Guava, and Custard Apple

Author:
Bapat, Vishwas A.; Jagtap, Umesh B.; Ghag, Siddhesh B.; Ganapathi, Thumballi R.
Source:
International journal of fruit science 2020 v.20 no.3 pp. 233-281
ISSN:
1553-8621
Subject:
2,4-D; Annona reticulata; Cauliflower mosaic virus; acetic acid; aconitate hydratase; activated carbon; alcohol dehydrogenase; amplified fragment length polymorphism; aspartate transaminase; benzyladenine; beta-glucuronidase; cetyltrimethylammonium bromide; chloroplast DNA; cross pollination; cultivars; culture media; diet; edible fruits; fruit crops; fruit trees; gas chromatography-mass spectrometry; genes; genetic improvement; genetic markers; genetic transformation; gibberellic acid; guavas; heterozygosity; hydrochloric acid; income; indole acetic acid; indole butyric acid; isocitrate dehydrogenase; jackfruits; kinetin; malate dehydrogenase; malic enzyme; microsatellite repeats; naphthaleneacetic acid; phosphoglucomutase; quantitative structure-activity relationships; random amplified polymorphic DNA technique; restriction fragment length polymorphism; socioeconomics; sulfuric acid; thidiazuron; tissue culture; triose-phosphate isomerase; woody plants; zeatin
Abstract:
... Fruit trees are important as additional sources of revenue and are important diet supplements. Besides yielding edible fruits, there are several other useful products available from these fruit trees. However, despite their significance, these plants have not been researched thoroughly for their propagation, cultivation and molecular characterization. Unlike the annual agricultural crops, fruit tr ...
DOI:
10.1080/15538362.2019.1621236