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1. A Mechanistic Study of Dehydrogenation of Propane over Vanadia–Titania Catalysts

Author:
Vasily V. Kaichev; Yuriy A. Chesalov; Andrey A. Saraev; Anna M. Tsapina
Source:
Journal of physical chemistry 2019 v.123 no.32 pp. 19668-19680
ISSN:
1932-7455
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; acetates; acetone; active sites; carbon dioxide; carbon monoxide; carbonates; catalysts; cations; chemical bonding; dehydrogenation; formates; gases; nanoparticles; oxidation; oxygen; propane; propylene; titanium dioxide; vanadium; vanadyl ions
Abstract:
... The oxidative and non-oxidative dehydrogenation of propane over a monolayer V₂O₅/TiO₂ catalyst was examined using in situ Fourier transform infrared spectroscopy and pseudo in situ X-ray photoelectron spectroscopy (XPS). It was found that the freshly calcined catalyst contains vanadium in the V⁵⁺ state; however, its treatment in the propane flow leads to the reduction of V⁵⁺ to V³⁺. Simultaneously ...
DOI:
10.1021/acs.jpcc.9b04991

2. A detailed spectroscopic analysis of the growth of oxy-carbon species on the surface of Pt/Al2O3 during propane oxidation

Author:
Casey P. O'Brien; Ivan C. Lee
Source:
Journal of catalysis 2017 v.347 pp. 1-8
ISSN:
0021-9517
Subject:
acetates; acetone; aluminum oxide; carbon dioxide production; catalysts; combustion; gases; nanoparticles; platinum; propane; reflectance; spectral analysis; temperature
Abstract:
... The growth of oxygenated carbonaceous (oxy-carbon) species on the surface of Pt/Al2O3 during total oxidation of propane is analyzed in detail—including their composition, their location on the catalyst surface, their reactivity, and their role in the propane oxidation mechanism—by in situ diffuse reflectance infrared Fourier-transform spectroscopy (DRIFTS). Platinum nanoparticles catalyze the tran ...
DOI:
10.1016/j.jcat.2016.12.021

3. A discrete octahedrally shaped [Ag₆]⁴⁺ cluster encapsulated within silicotungstate ligands

Author:
Yuji Kikukawa; Yoshiyuki Kuroda; Kosuke Suzuki; Mitsuhiro Hibino; Kazuya Yamaguchi; Noritaka Mizuno
Source:
Chemical communications 2012 v.49 no.4 pp. 376-378
ISSN:
1364-548X
Subject:
acetates; acetone; chemical reactions; chemical structure; encapsulation; ligands; quaternary ammonium compounds; reducing agents
Abstract:
... By the reaction of TBA₄H₄[γ-SiW₁₀O₃₆] (TBA = tetra-n-butylammonium) with AgOAc (OAc = acetate) using dimethylphenylsilane as a reductant in acetone, a unique polyoxometalate containing a discrete octahedrally shaped [Ag₆]⁴⁺ cluster, TBA₈[Ag₆(γ-H₂SiW₁₀O₃₆)₂]·5H₂O, could be synthesized, and the molecular structure was determined. ...
DOI:
10.1039/c2cc37591e

4. A low molecular mass cutinase of Thielavia terrestris efficiently hydrolyzes poly(esters)

Author:
Shaoqing Yang; Haibo Xu; Qiaojuan Yan; Yu Liu; Peng Zhou; Zhengqiang Jiang
Source:
Journal of industrial microbiology & biotechnology 2013 v.40 no.2 pp. 217-226
ISSN:
1367-5435
Subject:
Thielavia; acetates; acetone; carbon; cutin; cutinase; dimethyl sulfoxide; ethanol; fermentation; filtration; hexanoic acid; industrial applications; isopropyl alcohol; methanol; molecular weight; pH; polyacrylamide gel electrophoresis; polyethylene; solvents; succinic acid; thermophilic fungi; wheat bran
Abstract:
... A low molecular mass cutinase (designated TtcutA) from Thielavia terrestris was purified and biochemically characterized. The thermophilic fungus T. terrestris CAU709 secreted a highly active cutinase (90.4 U ml⁻¹) in fermentation broth containing wheat bran as the carbon source. The cutinase was purified 19-fold with a recovery yield of 4.8 %. The molecular mass of the purified TtcutA was determi ...
DOI:
10.1007/s10295-012-1222-x
PubMed:
23271406

5. A modified pathway for the production of acetone in Escherichia coli

Author:
Antje May; Ralf-Jörg Fischer; Simone Maria Thum; Steffen Schaffer; Stefan Verseck; Peter Dürre; Hubert Bahl
Source:
Metabolic engineering 2013 v.15 pp. 218-225
ISSN:
1096-7176
Subject:
Bacillus subtilis; Clostridium acetobutylicum; Escherichia coli; Haemophilus influenzae; acetates; acetone; acetyl coenzyme A; genetic background; glucose; host strains; hydrolysis; metabolites; microorganisms; operon; plasmids
Abstract:
... A modified synthetic acetone operon was constructed. It consists of two genes from Clostridium acetobutylicum (thlA coding for thiolase and adc coding for acetoacetate decarboxylase) and one from Bacillus subtilis or Haemophilus influenzae (teIIsrf or ybgC, respectively, for thioesterase). Expression of this operon in Escherichia coli resulted in the production of acetone starting from the common ...
DOI:
10.1016/j.ymben.2012.08.001

6. A proteomic and transcriptional view of acidogenic and solventogenic steady-state cells of Clostridium acetobutylicum in a chemostat culture

Author:
Janssen, Holger; Döring, Christina; Ehrenreich, Armin; Voigt, Birgit; Hecker, Michael; Bahl, Hubert; Fischer, Ralf-Jörg
Source:
Applied microbiology and biotechnology 2010 v.87 no.6 pp. 2209-2226
ISSN:
0175-7598
Subject:
Clostridium acetobutylicum; DNA microarrays; acetates; acetone; biofuels; butanol; butyrates; endospores; metabolism; pH; phase transition; proteins; proteome; proteomics; solvents; sporulation; sugars; transcription (genetics)
Abstract:
... The complex changes in the life cycle of Clostridium acetobutylicum, a promising biofuel producer, are not well understood. During exponential growth, sugars are fermented to acetate and butyrate, and in the transition phase, the metabolism switches to the production of the solvents acetone and butanol accompanied by the initiation of endospore formation. Using phosphate-limited chemostat cultures ...
DOI:
10.1007/s00253-010-2741-x
PubMed:
20617312
PubMed Central:
PMC3227527

7. Acetone production with metabolically engineered strains of Acetobacterium woodii

Author:
Sabrina Hoffmeister; Marzena Gerdom; Frank R. Bengelsdorf; Sonja Linder; Sebastian Flüchter; Hatice Öztürk; Wilfried Blümke; Antje May; Ralf-Jörg Fischer; Hubert Bahl; Peter Dürre
Source:
Metabolic engineering 2016 v.36 pp. 37-47
ISSN:
1096-7176
Subject:
Acetobacterium woodii; Clostridium acetobutylicum; acetates; acetone; bacteria; biomass; bioreactors; continuous fermentation; fossils; metabolic engineering; oils; operon; petroleum; promoter regions
Abstract:
... Expected depletion of oil and fossil resources urges the development of new alternative routes for the production of bulk chemicals and fuels beyond petroleum resources. In this study, the clostridial acetone pathway was used for the formation of acetone in the acetogenic bacterium Acetobacterium woodii. The acetone production operon (APO) containing the genes thlA (encoding thiolase A), ctfA/ctfB ...
DOI:
10.1016/j.ymben.2016.03.001

8. Acetone-soluble cellulose acetates prepared by one-step homogeneous acetylation of cornhusk cellulose in an ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl)

Author:
Cao, Yan; Wu, Jin; Meng, Tao; Zhang, Jun; He, Jiasong; Li, Huiquan; Zhang, Yi
Source:
Carbohydrate polymers 2007 v.69 no.4 pp. 665-672
ISSN:
0144-8617
Subject:
acetates; acetone; acetylation; byproducts; cellulose; chlorides; corn husks; dimethyl sulfoxide; ionic liquids; mechanical properties; nuclear magnetic resonance spectroscopy; solubility
Abstract:
... Cellulose samples extracted from cornhusk have been successfully acetylated in an ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl). Without using any catalyst, cornhusk cellulose acetates (CCAs) with the degree of substitution (DS) in a range from 2.16 to 2.63 were prepared in one-step. Under the homogeneous state, the DS value of CCAs was easily controlled by the acetylation time. The o ...
DOI:
10.1016/j.carbpol.2007.02.001

9. Acid-Catalyzed Reactions of Isopropenyl Esters and Renewable Diols: A 100% Carbon Efficient Transesterification/Acetalization Tandem Sequence, from Batch to Continuous Flow

Author:
Davide Rigo; Giulia Fiorani; Alvise Perosa; Maurizio Selva
Source:
ACS sustainable chemistry & engineering 2019 v.7 no.23 pp. 18810-18818
ISSN:
2168-0485
Subject:
acetates; acetone; atmospheric pressure; byproducts; carbon; catalysts; catalytic activity; enols; ethylene glycol; propylene glycol; solvents; transesterification
Abstract:
... A new acid-catalyzed tandem sequence was investigated for the upgrading of renewable 1,2-diols such as propylene glycol (PG) and ethylene glycol (EG), with isopropenyl esters. For example, at 50 °C and in the presence of Amberlyst-15, the reaction of PG with nontoxic isopropenyl acetate allowed an initial irreversible monotransesterification of the diol, releasing acetone which then promoted aceta ...
DOI:
10.1021/acssuschemeng.9b03359

10. Active Site Ensembles Enabled C–C Coupling of CO2 and CH4 for Acetone Production

Author:
Yuntao Zhao; Hua Wang; Jinyu Han; Xinli Zhu; Qingfeng Ge
Source:
Journal of physical chemistry 2018 v.122 no.17 pp. 9570-9577
ISSN:
1932-7455
Subject:
Lewis bases; acetates; acetic acid; acetone; activation energy; active sites; carbon; carbon dioxide; catalysts; density functional theory; energy; methane; moieties; oxygen; production technology; zinc
Abstract:
... The production of acetone through ketonization of acetic acid is both energy intensive and environmentally detrimental, as it emits equimolecular CO₂. Herein, a novel approach for acetone production from CO₂ and CH₄ was proposed through consecutive C–C coupling based on an extensive density functional theory computational study. To realize the consecutive C–C coupling, CeO₂-based catalyst doped wi ...
DOI:
10.1021/acs.jpcc.8b02359

11. Addition of ammonia and/or oxygen to an ionic liquid for delignification of miscanthus

Author:
Héctor Rodríguez; Sasisanker Padmanabhan; Geoffrey Poon; John M. Prausnitz
Source:
Bioresource technology 2011 v.102 no.17 pp. 7946-7952
ISSN:
0960-8524
Subject:
Miscanthus; acetates; acetone; air; ammonia; biomass; cellulose; delignification; lignin; nitrogen; oxygen
Abstract:
... Ammonia and/or oxygen were used to enhance the delignification of miscanthus dissolved in 1-ethyl-3-methylimidazolium acetate at 140°C. After dissolution of the gas at 9bar, water was added as antisolvent to regenerate the dissolved biomass. In a next step, an acetone/water mixture was used to remove carbohydrate-free lignin from the regenerated biomass. The lignin content in the final product was ...
DOI:
10.1016/j.biortech.2011.05.039
PubMed:
21684156

12. Adsorption Mechanisms of Typical Carbonyl-Containing Volatile Organic Compounds on Anatase TiO2 (001) Surface: A DFT Investigation

Author:
Yao Meijing; Ji Yuemeng; Wang Honghong; Ao Zhimin; Li Guiying; An Taicheng
Source:
The Journal of Physical Chemistry C 2017 v.121 no.25 pp. 13717-13722
ISSN:
1932-7455
Subject:
acetaldehyde; acetates; acetone; active sites; adsorption; air pollutants; air pollution; catalysts; energy; methodology; models; moieties; titanium dioxide; volatile organic compounds
Abstract:
... The carbonyl-containing compounds (CCs) are typical volatile organic compounds (VOCs) and ubiquitously present in the environment. Therefore, the adsorption structures and properties of typical CCs on the anatase TiO₂ (001) surface were investigated systematically with density functional theory (DFT) to understand their further catalytic degradation mechanisms. The adsorption mechanisms show that ...
DOI:
10.1021/acs.jpcc.7b02964

13. Ammonium acetate enhances solvent production by Clostridium acetobutylicum EA 2018 using cassava as a fermentation medium

Author:
Gu, Yang; Hu, Shiyuan; Chen, Jun; Shao, Lijun; He, Huiqi; Yang, Yunliu; Yang, Sheng; Jiang, Weihong
Source:
Journal of industrial microbiology & biotechnology 2009 v.36 no.9 pp. 1225-1232
ISSN:
1367-5435
Subject:
Clostridium acetobutylicum; acetates; acetone; ammonium acetate; butanol; butyric acid; cassava; corn; enzymes; ethanol; fermentation; genes; mutants; reverse transcriptase polymerase chain reaction; solvents; starch
Abstract:
... Cassava, due to its high starch content and low cost, is a promising candidate substrate for large-scale fermentation processes aimed at producing the solvents acetone, butanol and ethanol (ABE). However, the solvent yield from the fermentation of cassava reaches only 60% of that achieved by fermenting corn. We have found that the addition of ammonium acetate (CH₃COONH₄) to the cassava medium sign ...
DOI:
10.1007/s10295-009-0604-1
PubMed:
19543929

14. An experimental and numerical model for the release of acetone from decomposing EVA containing aluminium, magnesium or calcium hydroxide fire retardants

Author:
Fiona Hewitt; Diana Eid Rhebat; Artur Witkowski; T. Richard Hull
Source:
Polymer degradation and stability 2016 v.127 pp. 65-78
ISSN:
0141-3910
Subject:
acetates; acetic acid; acetone; calcium hydroxide; flame retardants; kinetics; magnesium hydroxide; mathematical models; polymers; pyrolysis
Abstract:
... Recent studies have identified acetone as an unexpected pyrolysis product of EVA containing aluminium or magnesium hydroxide fire retardants. It is thought that the freshly formed, open-pored, metal oxide, a thermal decomposition product of the metal hydroxide, traps acetic acid released from EVA and catalyses its conversion to acetone. Such a ketonisation reaction is well-established but the inte ...
DOI:
10.1016/j.polymdegradstab.2016.01.007

15. Anaerobic detoxification of acetic acid in a thermophilic ethanologen

Author:
A Joe Shaw; Bethany B Miller; Stephen R Rogers; William R Kenealy; Alex Meola; Ashwini Bhandiwad; W Ryan Sillers; Indraneel Shikhare; David A Hogsett; Christopher D Herring
Source:
Biotechnology for biofuels 2015 v.8 no.1 pp. 75
ISSN:
1754-6834
Subject:
Thermoanaerobacterium saccharolyticum; acetate kinase; acetates; acetic acid; acetone; acetyl coenzyme A; bacteria; biochemical pathways; biomass; carbon; ethanol; fermentation; ferredoxin hydrogenase; genes; hemicellulose; mutation; phenotype; toxicity
Abstract:
... BACKGROUND: The liberation of acetate from hemicellulose negatively impacts fermentations of cellulosic biomass, limiting the concentrations of substrate that can be effectively processed. Solvent-producing bacteria have the capacity to convert acetate to the less toxic product acetone, but to the best of our knowledge, this trait has not been transferred to an organism that produces ethanol at hi ...
DOI:
10.1186/s13068-015-0257-4
PubMed:
27279899
PubMed Central:
PMC4898469

16. Analysis of antioxidant metabolites by solvent extraction from sclerotia of Inonotus obliquus (Chaga)

Author:
Zheng, Weifa; Zhang, Meimei; Zhao, Yanxia; Miao, Kangjie; Pan, Shenyuan; Cao, Feng; Dai, Yucheng
Source:
Phytochemical analysis 2011 v.22 no.2 pp. 95-102
ISSN:
0958-0344
Subject:
Inonotus; acetates; acetone; adverse effects; antioxidant activity; chloroform; ethanol; ethers; free radical scavengers; hydroxyl radicals; metabolites; metabolomics; neoplasms; petroleum; polyphenols; sclerotia; superoxide anion; triterpenoids
Abstract:
... Introduction - The sclerotia of Inonotus obliquus (Chaga) are effective therapeutic agents to treat several human malignant tumours and other diseases without unacceptable toxic side-effects. Objective - To investigate solvent effects on metabolic profiles and antioxidant activities of extracts of Chaga. Methodology - Chaga was extracted by petroleum ether, chloroform, ethyl acetate, acetone, etha ...
DOI:
10.1002/pca.1225
PubMed:
21259372

17. Analysis of pentacyclic triterpenes by LC-MS. A comparative study between APCI and APPI

Author:
Rhourri-Frih, B.; Chaimbault, P.; Claude, B.; Lamy, C.; André, P.; Lafosse, M.
Source:
Journal of mass spectrometry 2009 v.44 no.1 pp. 71-80
ISSN:
1076-5174
Subject:
Betula; acetates; acetone; atmospheric pressure; bark; betulin; betulinic acid; ionization; liquid chromatography; mass spectrometry; monitoring; plant extracts; toluene
Abstract:
... The analytical performances of three atmospheric-pressure sources, electrospray (ESI), atmospheric-pressure chemical ionization (APCI), and atmospheric-pressure photoionization (APPI), were evaluated for the analysis of pentacyclic triterpenes in liquid chromatography-mass spectrometry (LC-MS). Among these sources, APPI and APCI are particularly well adapted to sensitive analyses of pentacyclic tr ...
DOI:
10.1002/jms.1472

18. Andalusol, a Diterpenoid with anti-inflammatory Activity from Siderits foetens Clemen

Author:
A. Navarro; B. de las Heras
Source:
Zeitschrift für Naturforschung 2014 v.52 no.11-12 pp. 844-849
ISSN:
1865-7125
Subject:
Sideritis; acetates; acetone; anti-inflammatory activity; beta-glucuronidase; calcium ionophores; carrageenan; diterpenoids; dose response; histamine; lactate dehydrogenase; mast cells; myeloperoxidase; neutrophils; rats; topical application; toxicity
Abstract:
... The anti-inflammatory activity of andalusol (ent-13(16),14-labdadiene-6α,8α,18-triol), a diterpenoid obtained from the acetone extract of Sideritis foetens Clemen, has been investigated. This compound was able to inhibit acute inflammatory processes induced by carrageenan or 12-O -tetradecanoylphorbol acetate (TPA) after oral or topical administration. Quantitation of the neutrophil specific marke ...
DOI:
10.1515/znc-1997-11-1219

19. Aniline-based catalysts as promising tools to improve analysis of carbonyl compounds through derivatization techniques: preliminary results using dansylacetamidooxyamine derivatization and LC-fluorescence

Author:
Stéphan Houdier; Justine Lévêque; Tiphaine Sabatier; Véronique Jacob; Jean-Luc Jaffrezo
Source:
Analytical and bioanalytical chemistry 2018 v.410 no.27 pp. 7031-7042
ISSN:
1618-2642
Subject:
acetates; acetone; amines; aqueous solutions; benzaldehyde; carbonyl compounds; catalysts; catalytic activity; derivatization; detection limit; formaldehyde; nitrogen; protons; reaction mechanisms; snow; snowmelt; sorbents
Abstract:
... Derivatization techniques based on α-effect amines and H⁺ catalysis are commonly used for the measurement of carbonyl compounds (CCs), whether in environmental, food, or biological samples. Here, we investigated the potential of aniline-based catalysts to improve derivatization rates of selected carbonyls by using dansylacetamidooxyamine (DNSAOA) as a reagent. Kinetic experiments were performed in ...
DOI:
10.1007/s00216-018-1304-3

20. Anthelmintic activity of botanical extracts against sheep gastrointestinal nematodes, Haemonchus contortus

Author:
Chinnaperumal Kamaraj; Abdul Abdul Rahuman; Gandhi Elango; Asokan Bagavan; Abdul Abduz Zahir
Source:
Parasitology research 2011 v.109 no.1 pp. 37-45
ISSN:
0932-0113
Subject:
Andrographis paniculata; Annona squamosa; Datura metel; Haemonchus contortus; Solanum torvum; acetates; acetone; albendazole; bark; cell culture; eggs; flubendazole; gastrointestinal nematodes; goats; hatching; in vivo studies; ivermectin; larval development; leaves; levamisole; medicinal plants; methanol; plant extracts; seeds; sheep; thiabendazole
Abstract:
... The source of chemical anthelmintics (levamisole, flubendazole, and thiabendazole) had limited the success of gastrointestinal nematodiasis control in sheep and goats and thus awakened interest in the study of medicinal plant extracts as alternative sources of anthelmintics. The egg hatching and larvicidal effect of indigenous plant extracts were investigated against the sheep parasite, Haemonchus ...
DOI:
10.1007/s00436-010-2218-y
PubMed:
21161270

21. Anthelmintic activity of the crude extracts, fractions, and osthole from Radix angelicae pubescentis against Dactylogyrus intermedius in goldfish (Carassius auratus) in vivo

Author:
Wang, Kai-yu; Yao, Lu; Du, Yong-hua; Xie, Jia-bing; Huang, Jin-lu; Yin, Zhong-qiong
Source:
Parasitology research 2011 v.108 no.1 pp. 195-200
ISSN:
0932-0113
Subject:
Carassius auratus; Dactylogyrus; acetates; acetone; anthelmintics; chromatography; death; ethanol; fractionation; goldfish; mortality; petroleum; toxicity
Abstract:
... A bioassay-guided fractionation was performed to evaluate the anthelmintic activity of the crude extract fractions and osthole from Radix angelicae pubescentis against Dactylogyrus intermedius in goldfish (Carassius auratus) in vivo. Among four extracts (petroleum ether, ethyl acetate, acetone, and ethanol), only ethanol extract exhibited the best anthelmintic efficacy with 100% mortality of Dacty ...
DOI:
10.1007/s00436-010-2058-9
PubMed:
20878184

22. Anthelmintic, antimycobacterial, antifungal, larvicidal and cytotoxic activities of acetone leaf extracts, fractions and isolated compounds from Ptaeroxylon obliquum (Rutaceae)

Author:
Thanyani Emelton Ramadwa; Lyndy Joy McGaw; Mathew Adamu; Balungile Madikizela; Jacobus Nicolaas Eloff
Source:
Journal of ethnopharmacology 2021 v.280 pp. 114365
ISSN:
0378-8741
Subject:
Aedes aegypti; Aspergillus fumigatus; Candida albicans; Cercopithecus aethiops; Cryptococcus neoformans; Haemonchus contortus; Mycobacterium bovis; Mycobacterium tuberculosis; Rutaceae; acetates; acetone; anthelmintics; antibacterial properties; antifungal properties; cytotoxicity; eggs; fungi; humans; kidneys; larval development; larvicides; leaf extracts; leaves; liver; lupeol; medicinal plants; minimum inhibitory concentration; tetrazolium; traditional medicine; tuberculosis; South Africa
Abstract:
... Ptaeroxylon obliquum (Thunb.) Radlk, sneezewood, is a commonly used medicinal plant in South Africa for the treatment of parasitic infections in animals, tuberculosis (TB) and related symptoms, and other microbial infections.In this study anthelmintic, antifungal, antimycobacterial, larvicidal and cytotoxic activities of the acetone leaf extract of P. obliquum, solvent-solvent derived fractions of ...
DOI:
10.1016/j.jep.2021.114365

23. Antibacterial activities of the phytochemicals-characterized extracts of Callistemon viminalis, Eucalyptus camaldulensis and Conyza dioscoridis against the growth of some phytopathogenic bacteria

Author:
Mervat EL-Hefny; Nader A. Ashmawy; Mohamed Z.M. Salem; Abdelfattah Z.M. Salem
Source:
Microbial pathogenesis 2017 v.113 pp. 348-356
ISSN:
0882-4010
Subject:
Agrobacterium radiobacter; Callistemon viminalis; Conyza; Dickeya; Eucalyptus camaldulensis; Ralstonia solanacearum; acetates; acetone; aerial parts; antibacterial properties; bark; butanol; camphor; cineole; essential oils; flowers; hydroxymethylfurfural; menthol; minimum inhibitory concentration; palmitic acid; plant pathogenic bacteria; pyrogallol; shikimic acid
Abstract:
... Three bacterial isolates were isolated from infected potato tubers showing soft and brown rots like symptoms as well as one isolate from infected peach tree showing crown gall symptom. The morphological, biochemical and molecular assays proved that bacterial isolates belonging to Pectobacterium carotovorum subsp. carotovorum, Ralstonia solanacearum, Dickeya spp. and Agrobacterium tumefaciens. The ...
DOI:
10.1016/j.micpath.2017.11.004

24. Antifeedant and larvicidal effects of plant extracts against Spodoptera litura (F.), Aedes aegypti L. and Culex quinquefasciatus Say

Author:
Kamaraj, C.; Rahuman, A. Abdul; Bagavan, A.
Source:
Parasitology research 2008 v.103 no.2 pp. 325-331
ISSN:
0932-0113
Subject:
Aedes aegypti; Culex quinquefasciatus; Ocimum americanum; Ocimum tenuiflorum; Spodoptera litura; acetates; acetone; antifeedants; botanical insecticides; chloroform; hexane; instars; larvae; leaf extracts; lethal concentration 50; medicinal plants; methanol; mortality; pests; screening; vector control; India
Abstract:
... A screening for larvicidal activity of plant extracts with some known medicinal attributes could lead to the discovery of new agents for pest and vector control. In the backdrop of recent revival of interest in developing plant-based insecticides, the present study was carried out to evaluate the larvicidal properties in three medicinal plants growing abundantly in the region of Chitheri Hills, Dh ...
DOI:
10.1007/s00436-008-0974-8

25. Antioxidant Activity and Protective effect of Banana Peel against Oxidative Hemolysis of Human Erythrocyte at Different Stages of Ripening

Author:
Shanthy Sundaram; Shadma Anjum; Priyanka Dwivedi; Gyanendra Kumar Rai
Source:
Applied biochemistry and biotechnology 2011 v.164 no.7 pp. 1192-1206
ISSN:
0273-2289
Subject:
Musa; acetates; acetone; antioxidant activity; bananas; byproducts; carotenoids; chloroform; erythrocytes; fractionation; free radical scavengers; free radicals; fruits; hemolysis; hexane; human health; humans; hydrogen; medicinal properties; phytochemicals; polyphenols; protective effect; pulp and paper industry; ripening; superoxide dismutase
Abstract:
... Phytochemicals such as polyphenols and carotenoids are gaining importance because of their contribution to human health and their multiple biological effects such as antioxidant, antimutagenic, anticarcinogenic, and cytoprotective activities and their therapeutic properties. Banana peel is a major by-product in pulp industry and it contains various bioactive compounds like polyphenols, carotenoids ...
DOI:
10.1007/s12010-011-9205-3
PubMed:
21369778

26. Antioxidant Properties of Isolated Compounds from Banana Rhizome

Author:
Saravanan Kandasamy; Chinnababu Baggu; Manjunatha Rangaswamy Javagal; Jaganmohan Rao Lingamallu; Venkateswarlu Yenamandra; Somaradhya Mallikarjuna Aradhya
Source:
Journal of food science 2014 v.79 no.5 pp. H988
ISSN:
0022-1147
Subject:
acetates; acetone; antioxidant activity; bananas; chloroform; chlorogenic acid; fractionation; functional foods; models; pharmaceutical industry; solvents; spectroscopy
Abstract:
... In this study, we attempted to explore banana rhizome (BR) as a source of natural bioactive compounds. Dried BR powder was subjected to sequential extraction using solvents with increasing polarity and studied for antioxidant activities. Chloroform and acetone extracts were selected for isolation and identification of bioactive compounds because of their high antioxidant properties. Antioxidant ac ...
DOI:
10.1111/1750-3841.12414
PubMed:
24784019

27. Antioxidant activity of mycelia from Aspergillus candidus

Author:
Yen, G.C.; Chang, Y.C.; Chen, J.P.
Source:
Journal of food science 2002 v.67 no.2 pp. 567-572
ISSN:
0022-1147
Subject:
Aspergillus candidus; mycelium; extraction; acetone; acetates; antioxidants; antioxidant activity; lipid peroxidation; free radicals; lard; natural additives
Abstract:
... The antioxidant activity of mycelia extracts produced from the submerged cultures of Aspergillus candidus CCRC 31543 was investigated. Inhibition of peroxidation (IP%) of mycelia acetone extracts (MAE) in linoleic acid peroxidation was equal to that of BHA and significantly (p < 0.05) higher than that of alpha-tocopherol. As measured by the Rancimat method in lard, MAE showed marked antioxidant ac ...
DOI:
10.1111/j.1365-2621.2002.tb10639.x

28. Antioxidant and Antibacterial Activities of Punica granatum Peel Extracts

Author:
Negi, P.S.; Jayaprakasha, G.K.
Source:
Journal of food science 2003 v.68 no.4 pp. 1473-1477
ISSN:
0022-1147
Subject:
Gram-negative bacteria; Punica granatum; acetates; acetone; antibacterial properties; butylated hydroxyanisole; free radical scavengers; high performance liquid chromatography; methanol; pomegranates; potassium; temperature
Abstract:
... Pomegranate peels were powdered and extracted with ethyl acetate, acetone, methanol (MeOH), and water for 1 h each at room temperature. Radical-scavenging activity of dried ethyl acetate, acetone, MeOH, and water extracts of pomegranate peels were compared with butylated hydroxyanisole at 5, 10, 25, and 50 ppm by high-performance liquid chromatography method using 1, 1-diphenyl-2-picrylhydrazyl. M ...
DOI:
10.1111/j.1365-2621.2003.tb09669.x

29. Antioxidant and antimutagenic activities of pomegranate peel extracts

Author:
Negi, P.S.; Jayaprakasha, G.K.; Jena, B.S.
Source:
Food chemistry 2003 v.80 no.3 pp. 393-397
ISSN:
0308-8146
Subject:
acetone; acetates; food biopreservatives; pomegranates; methanol; sodium azide; antimutagenic activity; Salmonella Typhimurium; antioxidant activity; Ames test
Abstract:
... Dried pomegranate peels were powdered and extracted in a Soxhlet extractor with ethyl acetate (EtOAc), acetone, methanol and water for 4 h each. The dried extracts were used to determine their antioxidant capacity by the formation of phosphomolybdenum complex and antimutagenicity against the mutagenicity of sodium azide by the Ames test. All the peel extracts exhibited marked antioxidant capacity, ...
DOI:
10.1016/S0308-8146(02)00279-0

30. Antiplasmodial activity of botanical extracts against Plasmodium falciparum

Author:
Asokan Bagavan; Abdul Abdul Rahuman; Chinnaperumal Kamaraj; Naveen Kumar Kaushik; Dinesh Mohanakrishnan; Dinkar Sahal
Source:
Parasitology research 2011 v.108 no.5 pp. 1099-1109
ISSN:
0932-0113
Subject:
acetates; drug therapy; chloroform; parasitemia; acetone; Phyllanthus; tetrazolium; Ocimum tenuiflorum; hexane; chloroquine; bromides; leaves; seeds; humans; Terminalia chebula; cytotoxicity; culture media; Plasmodium falciparum; seed extracts; methanol; vaccines; new drugs; Citrus sinensis; Leucas aspera
Abstract:
... The absence of a vaccine and the rampant resistance to almost all antimalarial drugs have accentuated the urgent need for new antimalarial drugs and drug targets for both prophylaxis and chemotherapy. The aim of the study was to discover effective plant extracts against Plasmodium falciparum. In the present study, the hexane, chloroform, ethyl acetate, acetone, and methanol extracts of Citrus sine ...
DOI:
10.1007/s00436-010-2151-0
PubMed:
21079994

31. Application of TLC for Evaluation of the Lipophilicity of Newly Synthetized Esters: Betulin Derivatives

Author:
Katarzyna Bober; Ewa Bębenek; Stanisław Boryczka
Source:
Journal of Analytical Methods in Chemistry (Online) 2019 v.2019 pp. -
ISSN:
2090-8873
Subject:
acetates; acetone; antineoplastic activity; betulin; cluster analysis; dioxane; drugs; equations; lipophilicity; prediction; thin layer chromatography
Abstract:
... The problem of designing a new drug is nowadays very important for researches representing many branches of science. This work considers the usefulness of the analytical method such as thin-layer chromatography for the lipophilicity of newly synthesized compounds, betulin derivatives, which could be potential drugs with anticancer activity. The two mobile phases were used for the purpose of experi ...
DOI:
10.1155/2019/1297659
PubMed:
30944751
PubMed Central:
PMC6421805

32. Application of a compact trickle-bed bioreactor to the biodegradation of pollutants from the ventillation air in a copper-ore mine

Author:
Damian Kasperczyk; Krzysztof Urbaniec
Source:
Journal of cleaner production 2015 v.87 pp. 971-976
ISSN:
0959-6526
Subject:
acetates; acetone; air; benzene; biodegradation; biofiltration; bioreactors; coculture; dimethyl disulfide; dimethyl sulfide; hydrogen sulfide; laboratory experimentation; microorganisms; pollutants; pollution load; polyethylene; styrene; thiols; volatile organic compounds; working conditions; xylene
Abstract:
... Selected results are presented of an on-going project conducted by Ekoinwentyka Ltd. with the aim to design, test and apply a compact trickle-bed bioreactor – operated in a biofiltration system with circulating salt solution – to the biodegradation of VOCs, mercaptans and H2S contained in the ventillation air in a copper-ore mine at a depth of 1000 m underground. The experiments were performed usi ...
DOI:
10.1016/j.jclepro.2014.09.009

33. Application of finite inverse gas chromatography in hypromellose acetate succinate-water-acetone systems

Author:
Sheng-Wei Chiu; Derek R. Sturm; Justin D. Moser; Ronald P. Danner
Source:
Journal of chromatography 2016 v.1466 pp. 166-172
ISSN:
0021-9673
Subject:
acetates; acetone; gas chromatography; glass transition temperature; manufacturing; models; polymers; prediction; solvents; spray drying; succinic acid; thermodynamics
Abstract:
... A modification of a GC was developed to investigate both infinitely dilute and finite concentrations of solvents in polymers. Thermodynamic properties of hypromellose acetate succinate (HPMCAS-L)-acetone-water systems are important for the optimization of spray-drying processes used in pharmaceutical manufacturing of solid dispersion formulations. These properties, at temperatures below the glass ...
DOI:
10.1016/j.chroma.2016.09.017

34. Application of partially concentrated Candida rugosa lipase in the enzymatic synthesis of geranyl acetate in organic solvent

Author:
B.H. Rosa; G.S. Silva; G.J.A. Conceição; R.A. Carvalho; E. Aguiar-Oliveira; R.R. Maldonado; E.S. Kamimura
Source:
Biocatalysis and agricultural biotechnology 2017 v.12 pp. 90-95
ISSN:
1878-8181
Subject:
Candida rugosa; acetates; acetone; carboxylic ester hydrolases; flavor; freeze drying; geraniol; hexane; solvents; synthesis; vinyl acetate
Abstract:
... Esters of terpinyl alcohols are substances used for adding flavor to several products because of their organoleptic properties. The enzymatic synthesis of these substances is more eco-friendly than conventional chemical synthesis. The aim of this study was to evaluate the concentration of Candida rugosa lipase by precipitation with acetone followed by lyophilization and application of the enzyme i ...
DOI:
10.1016/j.bcab.2017.09.005

35. Application of pressurized liquid extraction in the analysis of aflatoxins B₁, B₂, G₁ and G₂ in nuts

Author:
Campone, Luca; Piccinelli, Anna Lisa; Aliberti, Luigi; Rastrelli, Luca
Source:
Journal of separation science 2009 v.32 no.21 pp. 3837-3844
ISSN:
1615-9306
Subject:
European Union; acetates; acetone; aflatoxins; derivatization; fluorescence; high performance liquid chromatography; liquid-liquid extraction; methanol; nuts; temperature
Abstract:
... Aflatoxins (AFs) B₁, B₂, G₁ and G₂ were extracted from nuts by using pressurized liquid extraction (PLE) and the PLE extracts were analyzed using HPLC with fluorescence detection using photochemical post-column derivatization without further cleanup procedures. Several extraction parameters such as temperature (25, 40, 60 and 80°C), pressure (500, 1000, 1500 and 2000 psi), solvent extraction mixtu ...
DOI:
10.1002/jssc.200900329

36. Assessment of Carotenoids Recovery through Cell Rupture of Sporidiobolus salmonicolor CBS 2636 Using Compressed Fluids

Author:
Luciana Monks; Lídia Tiggamann; Marcio A. Mazuti; Vladimir J. Oliveira; Eunice Valduga
Source:
Food and bioprocess technology 2012 v.5 no.6 pp. 2353-2359
ISSN:
1935-5130
Subject:
Sporidiobolus; acetates; acetone; carbon dioxide; carotenoids; dimethyl sulfoxide; ethanol; industry; methanol; methylene chloride; pigments; propane; solvents
Abstract:
... The increasing demand for carotenoids by industries has drawn attention to their bio-production. Since pigments are intracellular, extraction steps are then needed after cell cultivation. In this work, different strategies for extraction of carotenoid pigments from Sporidiobolus salmonicolor (CBS 2636) were investigated. The cell rupture was carried out using dimethyl sulfoxide (DMSO), two pure co ...
DOI:
10.1007/s11947-010-0493-3

37. Avocado (Persea americana Mill.) Phenolics, In Vitro Antioxidant and Antimicrobial Activities, and Inhibition of Lipid and Protein Oxidation in Porcine Patties

Author:
Rodriguez-Carpena, Javier-German; Morcuende, David; Andrade, Maria-Jesus; Kylli, Petri; Estevez, Mario
Source:
Journal of agricultural and food chemistry 2011 v.59 no.10 pp. 5625–5635
ISSN:
0021-8561
Subject:
Gram-positive bacteria; Persea americana; acetates; acetone; antimicrobial properties; antioxidant activity; avocados; coumaric acids; flavanols; lipids; meat; methanol; oxidation; patties; procyanidins; proteins; pulp; seeds; swine
Abstract:
... The first aim of the present work (study 1) was to analyze ethyl acetate, 70% acetone, and 70% methanol extracts of the peel, pulp, and seed from two avocado (Persea americana Mill.) varieties, namely, ‘Hass’ and ‘Fuerte’, for their phenolic composition and their in vitro antioxidant activity using the CUPRAC, DPPH, and ABTS assays. Their antimicrobial potential was also studied. Peels and seeds h ...
DOI:
10.1021/jf1048832
PubMed:
21480593

38. Bacterial synthesis gas (syngas) fermentation

Author:
Frank R. Bengelsdorf; Melanie Straub; Peter Dürre
Source:
Environmental technology 2013 v.34 no.13-14 pp. 1639-1651
ISSN:
1479-487X
Subject:
acetates; acetone; bacteria; biocatalysts; biofuels; butanediol; butanol; butyrates; carbon; environmental technology; ethanol; fermentation; metabolic engineering; methodology; petroleum; sugars; synthesis gas; synthetic biology; yields
Abstract:
... Acetogenic bacteria employing the Wood–Ljungdahl pathway can be used as biocatalysts in syngas fermentation for the production of biofuels such as ethanol or butanol as well as biocommodities such as acetate, lactate, butyrate, 2,3 butanediol, and acetone. The potential of such processes can be projected by the global syngas output, which was 70,817 megawatts thermal in 2010 and is expected to inc ...
DOI:
10.1080/09593330.2013.827747

39. Biocatalytic preparation of alkyl esters of citrus flavanone glucoside prunin in organic media

Author:
Gustavo Céliz; Mirta Daz
Source:
Process biochemistry 2011 v.46 no.1 pp. 94-100
ISSN:
1359-5113
Subject:
Citrus; Pseudozyma antarctica; Rhizomucor miehei; acetates; acetone; acetonitrile; acylation; anion exchange resins; biocatalysis; biocatalysts; carboxylic ester hydrolases; hydrophobicity; naringin; solubility; solvents
Abstract:
... The biocatalytic preparation of alkyl esters of prunin, a flavanone glucoside derivative of citric flavonoid naringin, was performed in organic media using two commercial immobilized lipases: Novozym 435 (Candida antarctica lipase B immobilized on an acrylic resin) and Lipozyme RM IM (Rhizomucor miehei lipase immobilized on an anion exchange resin). The influence of several reaction parameters on ...
DOI:
10.1016/j.procbio.2010.07.022

40. Biodegradation of diisopropyl ether, ethyl tert-butyl ether, and other fuel oxygenates by Mycolicibacterium sp. strain CH28

Author:
Ingrid Zsilinszky; Balázs Fehér; István Kiss; Attila Komóczi; Péter Gyula; Zsolt Szabó
Source:
Bioremediation journal 2022 v.26 no.2 pp. 138-149
ISSN:
1547-6529
Subject:
Hydrogenophaga; acetates; acetone; alkanes; biodegradation; bioremediation; gasoline; groundwater; isopropyl alcohol; methyl ethers; mineralization; pH
Abstract:
... Growing use of recalcitrant fuel oxygenates like methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), tert-amyl methyl ether (TAME), and diisopropyl ether (DIPE) poses serious threat to aquatic environments and drinking water sources. Mycolicibacterium sp. strain CH28 was isolated earlier as a potential degrader of DIPE. Optimal culture conditions for strain CH28 were determined to be 32 ...
DOI:
10.1080/10889868.2021.1911924

41. Biodegradation of isopropanol and acetone under denitrifying conditions by Thauera sp. TK001 for nitrate-mediated microbially enhanced oil recovery

Author:
Tekle Tafese Fida; Fatma Gassara; Gerrit Voordouw
Source:
Journal of hazardous materials 2017 v.334 pp. 68-75
ISSN:
0304-3894
Subject:
Thauera; acetates; acetone; biodegradation; bioreactors; denitrification; denitrifying bacteria; glucose; isopropyl alcohol; molasses; nitrates; oil fields; oils; solvents
Abstract:
... Amendment of reservoir fluid with injected substrates can enhance the growth and activity of microbes. The present study used isopropyl alcohol (IPA) or acetone to enhance the indigenous anaerobic nitrate-reducing bacterium Thauera sp. TK001. The strain was able to grow on IPA or acetone and nitrate. To monitor effects of strain TK001 on oil recovery, sand-packed columns containing heavy oil were ...
DOI:
10.1016/j.jhazmat.2017.03.061

42. Biodegradation of methyl tert-butyl ether by cold-adapted mixed and pure bacterial cultures

Author:
G. M. Zaitsev; J. S. Uotila; M. M. Häggblom
Source:
Applied microbiology and biotechnology 2007 v.74 no.5 pp. 1092-1102
ISSN:
0175-7598
Subject:
Hyphomicrobium facile; Methylobacterium extorquens; Variovorax paradoxus; acetates; acetone; activated sludge; bacteria; biodegradation; carbon; energy; formaldehyde; methanol; mixed culture; pH; specific growth rate; temperature
Abstract:
... An aerobic mixed bacterial culture (CL-EMC-1) capable of utilizing methyl tert-butyl ether (MTBE) as the sole source of carbon and energy with a growth temperature range of 3 to 30°C and optimum of 18 to 22°C was enriched from activated sludge. Transient accumulation of tert-butanol (TBA) occurred during utilization of MTBE at temperatures from 3°C to 14°C, but TBA did not accumulate above 18°C. T ...
DOI:
10.1007/s00253-006-0737-3
PubMed:
17146651

43. Biodegradation of semiconductor volatile organic compounds by four novel bacterial strains: a kinetic analysis

Author:
Tien-Tsai Su; Chi-Wen Lin; Yet-Po I; Chih-Hung Wu
Source:
Bioprocess and biosystems engineering 2012 v.35 no.7 pp. 1117-1124
ISSN:
1615-7591
Subject:
Burkholderia; Paracoccus versutus; Pseudomonas aeruginosa; Pseudomonas citronellolis; acetates; acetone; biodegradation; bioreactors; isopropyl alcohol; microorganisms; propylene glycol; semiconductors; specific growth rate; volatile organic compounds
Abstract:
... This study isolated pure microorganisms for further bioreactor applications. Four novel strains of Pseudomonas citronellolis YAIP521, Paracoccus versutus HSAC51, Burkholderia sp. HUEL671, and Pseudomonas aeruginosa JUPG561 were isolated and tested for biodegradation of isopropyl alcohol (IPA), acetone, ethyl lactate (EL), and propylene glycol mono methyl ether acetate (PGMEA), respectively. The ma ...
DOI:
10.1007/s00449-012-0696-2

44. Biofiltration of paint solvent mixtures in two reactor types: Overloading by polar components

Author:
Jan Paca; Martin Halecky; Ondrej Misiaczek; Evguenii I. Kozliak; Kim Jones
Source:
Journal of environmental science and health 2012 v.47 no.7 pp. 1036-1045
ISSN:
1532-4117
Subject:
acetates; acetone; air; aromatic hydrocarbons; biofilters; biofiltration; bioreactors; hydrophobicity; pollutants; solvents
Abstract:
... Steady-state performances of a trickle bed reactor (TBR) and a biofilter (BF) in loading experiments with increasing inlet concentrations of polar solvents, acetone, methyl ethyl ketone, methyl isobutyl ketone and n-butyl acetate, were investigated, along with the system's dynamic responses. Throughout the entire experimentation time, a constant loading rate of aromatic components of 4 gc·m⁻³·h⁻¹ ...
DOI:
10.1080/10934529.2012.667323
PubMed:
22486673

45. Biofiltration of paint solvent mixtures in two reactor types: overloading by hydrophobic components

Author:
Paca, Jan; Halecky, Martin; Misiaczek, Ondrej; Jones, Kim; Kozliak, Evguenii; Sobotka, Miroslav
Source:
Journal of industrial microbiology & biotechnology 2010 v.37 no.12 pp. 1263-1270
ISSN:
1367-5435
Subject:
acetates; acetone; aromatic hydrocarbons; biofiltration; metabolism; toxicity; water content
Abstract:
... Steady-state performance characteristics of a trickle bed reactor (TBR) and a biofilter (BF) in loading experiments with increasing toluene/xylenes inlet concentrations while maintaining a constant loading rate of hydrophilic components (methyl ethyl and methyl isobutyl ketones, acetone, and n-butyl acetate) of 4 g m⁻³ h⁻¹ were evaluated and compared, along with the systems' dynamic responses. At ...
DOI:
10.1007/s10295-010-0801-y
PubMed:
21086102

46. Biogeochemical processes in a clay formation in situ experiment: Part C – Organic contamination and leaching data

Author:
P. De Cannière; J. Schwarzbauer; P. Höhener; G. Lorenz; S. Salah; O.X. Leupin; P. Wersin
Source:
Applied geochemistry 2011 v.26 no.6 pp. 967-979
ISSN:
0883-2927
Subject:
acetates; acetone; chromatography; clay; dissolved organic carbon; electrodes; equipment; gels; glycerol; leaching; methane; microbial activity; nylon; pH; plasticizers; polyethylene; polyurethanes; soaking
Abstract:
... Data interpretation of the Porewater Chemistry (PC) experiment at the Mont Terri Rock Laboratory has led to unexpected observations of anaerobic microbial processes which caused important geochemical perturbations of the Opalinus Clay water in the borehole. The increases of acetate to 146mgC/L, of DIC to 109mgC/L and of CH₄ to 0.5mgC/L were unexpected and could not be explained without the presenc ...
DOI:
10.1016/j.apgeochem.2011.03.006

47. Capabilities and Limitations of an Association Theory for Chemicals in Liquid or Supercritical Solvents

Author:
Tsivintzelis Ioannis; Kontogeorgis Georgios M.
Source:
Industrial & Engineering Chemistry Research 2012 v.51 no.41 pp. 13496-13517
ISSN:
1520-5045
Subject:
acetates; acetone; aromatic acids; carbon dioxide; case studies; chloroform; engineering; equations; hydrogen bonding; liquids; methanol; models; oxidation; prediction; solvents
Abstract:
... The cubic-plus-association (CPA) model is an equation of state (EoS) that combines the Soave–Redlich–Kwong (SRK) equation with the association term from Wertheim’s theory as used in statistical associating fluid theory (SAFT). In the form used here, the CPA EoS does not include separate terms for the polar and quadrupolar contributions. The capabilities and limitations of the CPA model when it is ...
DOI:
10.1021/ie301388d

48. Capillary Gas Chromatography with Atomic Emission Detection for Pesticide Analysis in Soil Samples

Author:
Vinas, Pilar; Campillo, Natalia; Lopez-Garcia, Ignacio; Aguinaga, Nerea; Hernandez-Cordoba, Manuel
Source:
Journal of agricultural and food chemistry 2003 v.51 no.13 pp. 3704-3708
ISSN:
0021-8561
Subject:
acetates; acetone; ascorbic acid; bromine; capillary gas chromatography; chlorine; detection limit; monitoring; organophosphorus compounds; pH; pesticides; pyrethrins; soil; soil sampling; sulfur; wavelengths
Abstract:
... A method for the simultaneous determination of 10 pesticides (organochlorines, organophosphorus compounds, and pyrethrins) in soils using capillary gas chromatography with atomic emission detection (GC-AED) is reported. Soil samples are first “cleaned-up” with 25 mL of an ascorbic acid solution (pH 2.15). The aqueous phase is extracted with ethyl acetate, and the solid residue is then extracted tw ...
DOI:
10.1021/jf021106b

49. Carbamazepine in municipal wastewater and wastewater sludge: Ultrafast quantification by laser diode thermal desorption-atmospheric pressure chemical ionization coupled with tandem mass spectrometry

Author:
D.P. Mohapatra; S.K. Brar; R.D. Tyagi; P. Picard; R.Y. Surampalli
Source:
Talanta 2012 v.99 no. pp. 247-255
ISSN:
0039-9140
Subject:
acetates; acetone; detection limit; drugs; environmental assessment; ionization; methanol; microwave treatment; monitoring; municipal wastewater; sludge; solvents; tandem mass spectrometry
Abstract:
... In this study, the distribution of the anti-epileptic drug carbamazepine (CBZ) in wastewater (WW) and aqueous and solid phases of wastewater sludge (WWS) was carried out. A rapid and reliable method enabling high-throughput sample analysis for quicker data generation, detection, and monitoring of CBZ in WW and WWS was developed and validated. The ultrafast method (15s per sample) is based on the l ...
DOI:
10.1016/j.talanta.2012.05.047

50. Carbon Dioxide Sequestering Ability of Bacterial Carbonic Anhydrase in a Mangrove Soil Microcosm and Its Bio-mineralization Properties

Author:
Vinod Kumar Nathan; Parvathi Ammini
Source:
Water, air, and soil pollution 2019 v.230 no.8 pp. 192
ISSN:
0049-6979
Subject:
Bacillus altitudinis; acetates; acetone; bacteria; biomineralization; calcite; calcium; carbon dioxide; carbon sequestration; carbonate dehydratase; enzyme activity; inoculum; mangrove sediments; mangrove soils; phenol; ribosomal DNA; screening; sequence analysis; soil ecology; soil sterilization; India
Abstract:
... In this study, we attempt to prospect potential bacterial isolates from mangrove sediments of Mangalavanam, Kerala, India, with positive carbonic anhydrase (CA) activity to sequester carbon dioxide by calcium precipitation process. Fifteen bacterial colonies (M1–M15) isolated were screened for their carbonic anhydrase enzyme production potential based on p-nitro phenol acetate assay. Based on the ...
DOI:
10.1007/s11270-019-4229-3