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1. "S Factor," A Microbial Enzyme which Increases the Swelling of Cotton in Alkali

Author:
P.B. Marsh; K. Bollenbacher; M.L. Butler; L.R. Guthrie
Source:
Textile research journal 1953 v.23 no.12 pp. 878-888
ISSN:
0040-5175
Subject:
Myrothecium verrucaria; acetone; autoclaving; cellulose; culture media; endo-1,4-beta-glucanase; fabrics; filtrates; fungi; heat; lint cotton; microbial growth; pH; pepsin; sodium hydroxide; steam; temperature; textile fibers; viscosity
Abstract:
... Exposure of cotton fiber to cell-free filtrates obtained from certain culture media after the growth of microorganisms increases the degree of subsequent swelling of the fiber in NaOH solutions. The active agency in the filtrates is here termed " S factor." Its action is measured by a previously described alkali-centrifuge test [12]. With the fungus Myrothecium verrucaria, S factor was produced du ...
DOI:
10.1177/004051755302301205

2.  Antioxidant and antimicrobial activities of beet root pomace extracts

Author:
J.M. Čanadanović-Brunet; S.S. Savatović; G.S. Ćetković; J.J. Vulić; S.M. Djilas; S.L. Markov; D.D. Cvetković
Source:
Czech Journal of Food Sciences v.29 no.6 pp. 575-585
ISSN:
1805-9317
Subject:
Bacillus cereus; Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; acetone; antioxidant activity; beets; betacyanins; ethanol; hydroxyl radicals; pomace; solid phase extraction; spectroscopy; superoxide anion
Abstract:
... We described the in vitro antioxidant and antimicrobial activities of ethanol, acetone, and water extracts of beet root pomace. Total contents of phenolics (316.30–564.50 mg GAE/g of dry extract), flavonoids (316.30–564.50 mg RE/g of dry extract), betacyanins (18.78–24.18 mg/g of dry extract), and betaxanthins (11.19–22.90 mg/g of dry extract) after solid-phase extract ...
DOI:
10.17221/210/2010-cjfs

3. 'Zahdi' dates skin as a source of proanthocyanidin

Author:
Al-Abid, M.M.R.
Source:
Acta horticulturae 2013 no.1012 pp. 127-134
ISSN:
0567-7572
Subject:
acetone; color; cultivars; cyanidin; epicatechin; freeze drying; hydrochloric acid; molecular weight; nickel; petroleum; solvents; spectroscopy; sugars
Abstract:
... The present work investigates the location and structure of date’s proanthocyanidin. Sugar free skin of ‘Zahdi’ date cultivar obtained through dewaxing by organic solvents (petroleum ether and diethyl ether) has been extracted by acetone and water; 50:50 and 70:30. The hygroscopic brownish lyophilized extract gave the typical cyanidin chloride red color (λmax MeOH/HCl=535 nm, PC R(f) value=0.49 in ...

4. (6R, 10R)-6,10,14-Trimethylpentadecan-2-one, a Dominant and Behaviorally Active Component in Male Orchid Bee Fragrances

Author:
Eltz, Thomas; Hedenström, Erik; Bång, Joakim; Wallin, Erika A.; Andersson, Jimmy
Source:
Journal of chemical ecology 2010 v.36 no.12 pp. 1322-1326
ISSN:
0098-0331
Subject:
Euglossa; Orchidaceae; acetone; bioassays; enantiomers; flowers; males; molecular weight; odors; tibia; Mexico; Panama
Abstract:
... 6,10,14-Trimethylpentadecan-2-one (Hexahydrofarnesyl acetone; HHA) previously has been found to be a major component in tibial fragrances of male orchid bees, Euglossa spp. HHA is a chiral molecule with four possible stereoisomers, (6R, 10R)-, (6R, 10S)-, (6S, 10R)-, and (6S, 10S)-6,10,14-trimethylpentadecan-2-one. In the present study, we characterized HHA extracted from Euglossa as the pure enan ...
DOI:
10.1007/s10886-010-9873-4
PubMed:
20953677

5. (Cyclopentadienone)iron-Catalyzed Transfer Dehydrogenation of Symmetrical and Unsymmetrical Diols to Lactones

Author:
Yidan Tang; Rowan I. L. Meador; Casina T. Malinchak; Emily E. Harrison; Kimberly A. McCaskey; Melanie C. Hempel; Timothy W. Funk
Source:
Journal of organic chemistry 2019 v.85 no.4 pp. 1823-1834
ISSN:
1520-6904
Subject:
acetone; carbonyl compounds; carboxylic acids; catalysts; catalytic activity; dehydrogenation; electronics; glycols; hydrogen; iron; lactones; ligands; moieties; organic chemistry; solvents; spectral analysis
Abstract:
... Air-stable iron carbonyl compounds bearing cyclopentadienone ligands with varying substitution were explored as catalysts in dehydrogenative diol lactonization reactions using acetone as both the solvent and hydrogen acceptor. Two catalysts with trimethylsilyl groups in the 2- and 5-positions, [2,5-(SiMe₃)₂-3,4-(CH₂)₄(η⁴-C₄C═O)]Fe(CO)₃ (1) and [2,5-(SiMe₃)₂-3,4-(CH₂)₃(η⁴-C₄C═O)]Fe(CO)₃ (2), were f ...
DOI:
10.1021/acs.joc.9b01884

6. (UV/Oxidative) dual curing polyurethane dispersion from cardanol based polyol: Synthesis and characterization

Author:
Vikash Mishra; Jatin Desai; Kalpesh I. Patel
Source:
Industrial crops and products 2018 v.111 pp. 165-178
ISSN:
0926-6690
Subject:
Fourier transform infrared spectroscopy; acetone; acid value; carbon; catalysts; coatings; color; epoxides; gels; nuclear magnetic resonance spectroscopy; phosphine; physicochemical properties; polyols; polyurethanes; propionic acid; solvents; stable isotopes; viscosity
Abstract:
... This study reports the synthesis and property evaluation of UV/oxidative dual curing waterborne polyurethane dispersion prepared from cardanol-based polyol using different mode of curing. Cardanol-based polyol was prepared by reacting epoxidized cardanol with itaconic acid in presence of triphenyl phosphine catalyst. Structures of cardanol-based intermediates (both epoxidized cardanol and polyol) ...
DOI:
10.1016/j.indcrop.2017.10.015

7. (Un)targeted hair metabolomics: first considerations and systematic evaluation on the impact of sample preparation

Author:
Lisa Eisenbeiss; Andrea E. Steuer; Tina M. Binz; Markus R. Baumgartner; Thomas Kraemer
Source:
Analytical and bioanalytical chemistry 2019 v.411 no.17 pp. 3963-3977
ISSN:
1618-2642
Subject:
acetone; acetonitrile; buffer index; buffers; cutting; decontamination; gas chromatography; grinding; homogenization; liquid chromatography; mass spectrometry; metabolites; metabolomics; methanol; methylene chloride; monitoring; pH; prediction; solvents; urine; washing
Abstract:
... The interest in metabolomic studies has rapidly increased over the past few years. Changes of endogenous compounds are typically detected in plasma or urine. However, the use of hair allows for long-term monitoring of metabolomic changes and has recently started being applied to metabolomic studies. Within the proposed study, we aimed for a systematical investigation of different pre-analytical pa ...
DOI:
10.1007/s00216-019-01873-4

8. (Z)-9-Tricosene based Musca domestica lure study on a garbage dump yard using plywood sticky trap baited with fish meal

Author:
S. T. Bino Sundar; Bhaskaran Ravi Latha; R. Vijayashanthi; Serma Saravana Pandian
Source:
Journal of parasitic diseases 2016 v.40 no.1 pp. 32-35
ISSN:
0971-7196
Subject:
Musca domestica; Sarcophaga; acetone; bait traps; fish meal; hexane; municipal solid waste; parasitoses; plywood; solvents; sticky traps
Abstract:
... A study was undertaken to find out the efficacy of (Z)-9-Tricosene in attracting flies in a garbage dump yard using a plywood sticky glue trap with fish meal as a food bait. (Z)-9-Tricosene was dissolved in acetone or hexane before application on a filter paper strip fixed at the centre of the trap. The traps were left in areas of the garbage dump yard of high fly activity for 6 h and then the tra ...
DOI:
10.1007/s12639-013-0400-8
PubMed:
27065593
PubMed Central:
PMC4815855

9. (Zn, Ni, Cu)-BTC Functionalized with Phosphotungstic Acid for Adsorptive Desulfurization in the Presence of Benzene and Ketone

Author:
Wei Dai; Ning Tian; Congmin Liu; Le Yu; Qing Liu; Na Ma; Yuexing Zhao
Source:
Energy & fuels 2017 v.31 no.12 pp. 13502-13508
ISSN:
1520-5029
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; acetone; adsorbents; adsorption; atomic absorption spectrometry; benzene; coordination polymers; copper; desorption; desulfurization; fuels; nickel; nitrogen; phosphotungstic acid; scanning electron microscopy; zinc
Abstract:
... A novel composite adsorbent, PTA@(Zn, Ni, Cu)-BTC, was prepared by (Zn, Ni, Cu)-BTC doped with different amounts of phosphotungstic acid (PTA) using an impregnation method. Apparatus like nitrogen adsorption–desorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), inductively coupled plasma optical emission spectroscopy (ICP-OES), and NH₃-tempera ...
DOI:
10.1021/acs.energyfuels.7b02851

10. The (non)sense of routinely analysing beta-hydroxybutyric acid in forensic toxicology casework

Author:
Nele Sadones; Willy E. Lambert; Christophe P. Stove
Source:
Forensic science international 2017 v.274 pp. 38-43
ISSN:
0379-0738
Subject:
3-hydroxybutyric acid; acetone; blood; death; ethanol; forensic sciences; gas chromatography; glucose; ketone bodies; ketosis; renewable energy sources; retrospective studies; toxicology; urine
Abstract:
... Beta-hydroxybutyric acid (BHB) is a ketone body which is generated from fatty acids as an alternative energy source when glucose is not available. Determination of this compound may be relevant in the forensic laboratory as ketoacidosis – an elevated level of ketone bodies – may contribute to the cause of death. In this study, we aimed at determining the relevance of routinely implementing BHB ana ...
DOI:
10.1016/j.forsciint.2017.01.002

11. (−)-Epicatechin—An Important Contributor to the Antioxidant Activity of Japanese Knotweed Rhizome Bark Extract as Determined by Antioxidant Activity-Guided Fractionation

Author:
Urška Jug; Katerina Naumoska; Irena Vovk
Source:
Antioxidants 2021 v.10 no.1 pp. -
ISSN:
2076-3921
Subject:
2,2-diphenyl-1-picrylhydrazyl; Reynoutria japonica; acetone; antioxidant activity; antioxidants; ascorbic acid; assays; bark extracts; densitometry; epicatechin; ethanol; extraction; fractionation; mass spectrometry; methanol; mixtures; refrigerators; resveratrol; rhizomes; solvents; storage; thin layer chromatography; water
Abstract:
... The antioxidant activities of Japanese knotweed rhizome bark extracts, prepared with eight different solvents or solvent mixtures (water, methanol, 80% methanol₍ₐq₎, acetone, 70% acetone₍ₐq₎, ethanol, 70% ethanol₍ₐq₎, and 90% ethyl acetate₍ₐq₎), were determined using a 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical-scavenging assay. Low half maximal inhibitory concentration (IC₅₀) values (2.632 ...
DOI:
10.3390/antiox10010133

12. 1,1-Diamino-2,2-dinitroethene (FOX-7) and 1-amino-1-hydrazino-2,2-dinitroethene (HFOX) as amphotères: bases with strong acids

Author:
Thao T. Vo; Jean'ne M. Shreeve
Source:
Journal of materials chemistry A 2015 v.3 no.16 pp. 8756-8763
ISSN:
2050-7496
Subject:
X-ray diffraction; acetone; acids; anions; cations; chemistry; chlorides; hydrazine; hydrazones; oxygen; perchlorates; trinitrotoluene
Abstract:
... The exciting discovery of the first cations based on 1,1-diamino-2,2-dinitroethene (FOX-7) and its hydrazine derivative, 1-amino-1-hydrazino-2,2-dinitroethene (HFOX), along with their syntheses and full characterization is described. The oxygen rich content of these cations lends to their potential as promising precursors for energetic salts. A variety of acids including triflic, perchloric, and h ...
DOI:
10.1039/c4ta07098d

13. 1,2-Phenylene-Incorporated Smallest Expanded Calix[4]pyrrole via One-Step Synthesis of Tetrapyrrane: A Fluorescent Host for Fluoride Ion

Author:
B. Sathish Kumar; Brijesh Chandra; K. V. Jovan Jose; Pradeepta K. Panda
Source:
Journal of organic chemistry 2021 v.86 no.15 pp. 10536-10543
ISSN:
1520-6904
Subject:
acetone; acetonitrile; fluorescence; fluorides; organic chemistry; pyrroles; solvents
Abstract:
... Synthesis of tetrapyrrane 8 from acetone and pyrrole via one-step condensation was achieved for the first time along with a much-improved yield of the tripyrrane 9. Diborylation of the tetrapyrrane and subsequent “1 + 1” cyclocoupling with 1,2-diiodobenzene following the Suzuki protocol generated novel o-phenylene incorporated macrocycle belonging to the smallest meso-expanded calix[4]pyrrole fami ...
DOI:
10.1021/acs.joc.1c01179

14. 1,5-Benzoheteroazepines through eco-friendly general condensation reactions

Author:
Monica Nardi; Annalisa Cozza; Loredana Maiuolo; Manuela Oliverio; Antonio Procopio
Source:
Tetrahedron letters 2011 v.52 no.38 pp. 4827-4834
ISSN:
0040-4039
Subject:
acetone; chemical reactions; chalcones; chemical structure
Abstract:
... Condensation reactions of o-phenylenediamine and 2equiv of acetone produce biaryl-substituted 1,5-benzodiazepines. The synthetic protocol shows general applicability since similar reaction of o-phenylenediamines, o-aminophenol, and o-aminothiophenol with ketones or chalcones leads to formation of functionalized 1,5-benzoheteroazepines in good to excellent yields. The synthetic protocol fulfills ma ...
DOI:
10.1016/j.tetlet.2011.06.029

15. 1.1μm Superficially porous particles for liquid chromatography

Author:
Laura E. Blue; James W. Jorgenson
Source:
Journal of chromatography 2015 v.1380 pp. 71-80
ISSN:
0021-9673
Subject:
acetone; electrochemistry; light microscopy; liquid chromatography; mass transfer; methanol; particle size; slurries; solvents
Abstract:
... The predicted advantages of superficially porous particles over totally porous particles are decreased eddy dispersion, longitudinal diffusion, and resistance to mass transfer contributions to the theoretical plate height. While sub-2 micron superficially porous particles are commercially available, further improvements in performance are predicted by decreasing the particle diameter and decreasin ...
DOI:
10.1016/j.chroma.2014.12.055

16. 1.3.5-Triazin-2,4,6-trisulfenyltrichlorid: Synthese, Eigenschaften und Reaktionsverhalten / 1.3.5-Triazine-2,4,6-trisulfenyltrichloride: Synthesis, Properties and Reactions

Author:
Robert Tripolt; Siegfried Schmuck; Edgar Nachbaur
Source:
Zeitschrift für Naturforschung 2014 v.54 no.5 pp. 609-616
ISSN:
0932-0776
Subject:
acetone; alcohols; ammonia; mass spectrometry
Abstract:
... Various routes and improved experimental conditions for the synthesis of 1,3,5-triazine-2,4,6- trisulfenyltrichloride are reported and its reaction with water, alcohols, ammonia, and acetone investigated. The formation of the monomeric pseudohalogen halide NCS-C1 by degradation of the title compound under mass-spectrometry conditions has been observed. ...
DOI:
10.1515/znb-1999-0507

17. 1064nm dispersive multichannel Raman spectroscopy for the analysis of plant lignin

Author:
Matthew W. Meyer; Jason S. Lupoi; Emily A. Smith
Source:
Analytica chimica acta 2011 v.706 no.1 pp. 164-170
ISSN:
0003-2670
Subject:
dioxane; biopolymers; fiber optics; isopropyl alcohol; sugarcane; remote sensing; toluene; Raman spectroscopy; acetone; fluorescence; industry; acids; least squares; phenol; Angiospermae; breathing; acetonitrile; lignin; ethanol; methanol; wavelengths; pulp
Abstract:
... The mixed phenylpropanoid polymer lignin is one of the most abundant biopolymers on the planet and is used in the paper, pulp and biorenewable industries. For many downstream applications, the lignin monomeric composition is required, but traditional methods for performing this analysis do not necessarily represent the lignin composition as it existed in the plant. Herein, it is shown that Raman s ...
DOI:
10.1016/j.aca.2011.08.031

18. 110th Anniversary: Influence of Solvents on Biocrude from Hydrothermal Liquefaction of Soybean Oil, Soy Protein, Cellulose, Xylose, and Lignin, and Their Quinary Mixture

Author:
Jianwen Lu; Zhidan Liu; Yuanhui Zhang; Phillip E. Savage
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.31 pp. 13971-13976
ISSN:
1520-5045
Subject:
acetone; biofuels; biomass; carbon; cellulose; feedstocks; heat; hydrogen; hydrothermal liquefaction; lignin; methylene chloride; models; process design; solvents; soy protein; soybean oil; xylose
Abstract:
... We perform hydrothermal liquefaction (HTL) on five materials that model the major biochemical components in a wide array of biomass feedstocks: soybean oil, soy protein, cellulose, xylose, and lignin. The influence of different solvents (dichloromethane, acetone, methyl tert-butyl ether (MTBE)) on the yield, and the elemental content of the biocrude recovered from isothermal and fast HTL of these ...
DOI:
10.1021/acs.iecr.9b02442

19. 110th Anniversary: Microkinetic Modeling of the Vapor Phase Upgrading of Biomass-Derived Oxygenates

Author:
Lauren D. Dellon; Chun-Yi Sung; David J. Robichaud; Linda J. Broadbelt
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.33 pp. 15173-15189
ISSN:
1520-5045
Subject:
acetic acid; acetoacetic acid; acetone; alkenes; aromatic compounds; automation; biofuels; biomass; catalytic activity; condensation reactions; cracking; decarboxylation; enols; mechanistic models; process design; pyrolysis; thermodynamics; vapors
Abstract:
... Bio-oil produced from fast pyrolysis of biomass is a complex mixture of more than 200 compounds, including oxygenates and acids. As these species are highly undesirable in fuels, catalytic upgrading of biomass pyrolysis product vapors, also known as catalytic fast pyrolysis, is performed to upgrade the vapors to valuable fuels and chemicals. This work presents a detailed microkinetic model, compos ...
DOI:
10.1021/acs.iecr.9b03242

20. 13C-NMR-Spektroskopie an polycyclischen Aromaten, IV Das 13C-NMR-Spektrum von 1-Aminopyren / 13C NMR Spectroscopy of Polycyclic Aromatics, IV The 13C NMR Spectrum of 1-Aminopyrene

Author:
Ludger Ernst
Source:
Zeitschrift für Naturforschung 2014 v.30 no.9-10 pp. 800-803
ISSN:
0932-0776
Subject:
acetone; aromatic compounds; carbon; nuclear magnetic resonance spectroscopy; stable isotopes
Abstract:
... In the ¹³C NMR spectrum of ] -aminopyrene (1) in [D6] acetone all carbon atoms are anisochronous. Most of the sixteen signals can be safely assigned by selective ¹³C{¹H}double resonance experiments and by the interpretation of proton-coupled ¹³C as well as with the aid of off-resonance noise-decoupled ¹³C{¹H} spectra. Substituent effects on chemical shifts in rings A, B, and D are compared with th ...
DOI:
10.1515/znb-1975-9-1028

21. 15-Hydroxygermacranolides as Sources of Structural Diversity: Synthesis of Sesquiterpene Lactones by Cyclization and Rearrangement Reactions. Experimental and DFT Study

Author:
José María Álvarez-Calero; Enrique Ruiz; José Luis López-Pérez; Martín Jaraíz; José E. Rubio; Zacarías D. Jorge; Margarita Suárez; Guillermo M. Massanet
Source:
Journal of organic chemistry 2018 v.83 no.10 pp. 5480-5495
ISSN:
1520-6904
Subject:
Lewis acids; acetone; artemisinin; biomimetics; catalysts; chemical structure; cyclization reactions; eudesmanolides; guaianolides; organic chemistry; solvents
Abstract:
... A study on the electrophile-induced rearrangement of two 15-hydroxygermacranolides, salonitenolide and artemisiifolin, was carried out. These compounds underwent electrophilic intramolecular cyclizations or acid-mediated rearrangements to give sesquiterpene lactones with different skeletons such as eudesmanolides, guaianolides, amorphanolides, or other germacranolides. The cyclization that gives g ...
DOI:
10.1021/acs.joc.8b00407

22. 195Pt-NMR-Messungen an stereoisomeren Chloro-Bromo-Platinaten(rV) / 195Pt NMR Studies on Stereoisomeric Chloro Bromo Platinates(IV)

Author:
P. S. Pregosin; M. Kretschmer; W. Preetz; G. Rimkus
Source:
Zeitschrift für Naturforschung 2014 v.37 no.11 pp. 1422-1424
ISSN:
0932-0776
Subject:
acetone; halogens; isomerization; nuclear magnetic resonance spectroscopy
Abstract:
... ¹⁹⁵Pt NMR spectra for the pure anionic complexes [PtClₙBr₆₋ₙ]²⁻ have been measured in acetone solution. The isomerization reactions cis-[PtClₙBr₆₋ₙ]²⁻ → trans-[PtClₙBr₆₋ₙ]²⁻, n = 2, 4 and fac-[PtCl₃Br₃]²⁻ → mer-[PtCl₃Br₃]²⁻ are slow on the NMR time scale and these slow kinet ics allow an unambiguous assignment of the ¹⁹⁵Pt signals. The cis and fac complexes are found at slightly lower field (12-15 ...
DOI:
10.1515/znb-1982-1111

23. 1H NMR Derived Metabolomic Profile of Neonatal Asphyxia in Umbilical Cord Serum: Implications for Hypoxic Ischemic Encephalopathy

Author:
Reinke Stacey N.; Walsh Brian H.; Boylan Geraldine B.; Sykes Brian D.; Kenny Louise C.; Murray Deirdre M.; Broadhurst David I.
Source:
Journal of Proteome Research 2013 v.12 no.9 pp. 4230-4239
ISSN:
1535-3907
Subject:
3-hydroxybutyric acid; acetone; asphyxia; biochemical pathways; blood serum; disease severity; encephalopathy; energy metabolism; glycerol; hypoxia; hypoxia-inducible factor 1; infants; metabolites; metabolome; multivariate analysis; nuclear magnetic resonance spectroscopy; succinic acid; umbilical cord
Abstract:
... Neonatal hypoxic ischemic encephalopathy (HIE) is a severe consequence of perinatal asphyxia (PA) that can result in life-long neurological disability. Disease mechanisms, including the role and interaction of individual metabolic pathways, remain unclear. As hypoxia is an acute condition, aerobic energy metabolism is central to global metabolic pathways, and these metabolites are detectable using ...
DOI:
10.1021/pr400617m

24. 1H NMR Study on the Short- and Long-Term Impact of Two Training Programs of Sprint Running on the Metabolic Fingerprint of Human Serum

Author:
Pechlivanis Alexandros; Kostidis Sarantos; Saraslanidis Ploutarchos; Petridou Anatoli; Tsalis George; Veselkov Kirill; Mikros Emmanuel; Mougios Vassilis; Theodoridis Georgios A.
Source:
Journal of Proteome Research 2013 v.12 no.1 pp. 470-480
ISSN:
1535-3907
Subject:
acetoacetic acid; acetone; alanine; arginine; blood serum; citrates; exercise; glucose; glycoproteins; histidine; humans; isoleucine; lactic acid; leucine; lipids; long term effects; lysine; men; metabolism; metabolites; metabolomics; models; nuclear magnetic resonance spectroscopy; proteome; pyruvic acid; sports; taurine; trimethylamine; valine
Abstract:
... Metabonomics is an established strategy in the exploration of the effects of various stimuli on the metabolic fingerprint of biofluids. Here, we present an application of ¹H NMR-based metabonomics on the field of exercise biochemistry. Fourteen men were assigned to either of two training programs, which lasted 8 weeks and involved sets of 80-m maximal runs separated by either 10 s or 1 min of rest ...
DOI:
10.1021/pr300846x

25. 1H NMR and 1H–13C HSQC surface characterization of chitosan–chitin sheath-core nanowhiskers

Author:
Antonio G.B. Pereira; Edvani C. Muniz; You-Lo Hsieh
Source:
Carbohydrate polymers 2015 v.123 pp. 46-52
ISSN:
0144-8617
Subject:
acetone; acetylation; acid hydrolysis; chitin; chitosan; colloids; crystal structure; deuterium oxide; glucosamine; hydrochloric acid; hydrogen; nanocrystals; nuclear magnetic resonance spectroscopy; sodium hydroxide
Abstract:
... Surface deacetylation of chitin nanowhiskers (CtNWs) to chitosan–sheath/chitin-core nanowhiskers (CsNWs) was successfully monitored by liquid-state high-resolution NMR of colloidal suspensions of these never-dried nanowhiskers. CtNWs were derived from acid hydrolysis (3N HCl, 30mL/g, 90min, 104°C) of chitin at 65% yield and 86% CrI. Deacetylation (50% NaOH, 48h, 50°C) of CtNWs generated CsNWs with ...
DOI:
10.1016/j.carbpol.2015.01.017

26. 1H NMR-based serum metabolic profiling of Carassius auratus gibelio under the toxicity of Pb2+ and Cd2+

Author:
S. A. Khan; X. Liu; H. Li; Y. Zhu; W. Fan; P. Zhou; Z. ur Rehman
Source:
International journal of environmental science and technology 2016 v.13 no.11 pp. 2597-2608
ISSN:
1735-1472
Subject:
3-hydroxybutyric acid; Carassius gibelio; acetone; additive effect; alanine; amino acid metabolism; anaerobiosis; blood serum; cadmium; choline; ecosystems; freshwater fish; guanosine; isoleucine; lactic acid; lead; leucine; lysine; metabolites; metabolomics; multivariate analysis; neurotransmitters; osmoregulation; pollutants; pyruvic acid; risk; threonine; toxicity; tyrosine
Abstract:
... Lead and cadmium are the two widely recognized toxic metals, with known ecological risk to freshwater fish in contaminated ecosystems. However, their effect at environmentally realistic level in a mixture has been rarely investigated. In the present study, serum metabolic responses of Crucian carp exposed to Pb (30 µgL⁻¹), Cd (100 µgL⁻¹) and Pb+Cd (30 + 100 µgL⁻¹) for 21 days were investigated by ...
DOI:
10.1007/s13762-016-1086-0

27. 1H ΝΜR chemical shift assignment, structure and conformational elucidation of hypericin with the use of DFT calculations – The challenge of accurate positions of labile hydrogens

Author:
Michael G. Siskos; M. Iqbal Choudhary; Andreas G. Tzakos; Ioannis P. Gerothanassis
Source:
Tetrahedron 2016 pp. -
ISSN:
0040-4020
Subject:
X-radiation; acetone; chemical structure; dimethyl sulfoxide; hydrogen; hydrogen bonding; hypericin; ionization; nuclear magnetic resonance spectroscopy
Abstract:
... Hypericin is one of the principal active constituents of Hypericium (Saint John's wort). We present in this paper: (i) chemical shift assignment of the neutral and ionic form of hypericin based on DFT 1H NMR calculations, and conflicting literature experimental OH 1H NMR chemical shifts are critically evaluated; (ii) investigation of the cooperative nature of intra- and intermolecular hydrogen bon ...
DOI:
10.1016/j.tet.2016.10.072

28. 1H-Nuclear magnetic resonance-based plasma metabolic profiling of dairy cows with clinical and subclinical ketosis

Author:
L.W. Sun; H.Y. Zhang; L. Wu; S. Shu; C. Xia; C. Xu; J.S. Zheng
Source:
Journal of dairy science 2014 v.97 no.3 pp. 1552-1562
ISSN:
0022-0302
Subject:
3-hydroxybutyric acid; Holstein; acetone; analytical methods; calving; choline; dairy cows; dairy farming; discriminant analysis; glucose; glutamic acid; glutamine; ketosis; lactic acid; least squares; metabolites; metabolomics; models; principal component analysis
Abstract:
... The purpose of this study was to assess the metabolic profile of plasma samples from cows with clinical and subclinical ketosis. According to clinical signs and 3-hydroxybutyrate plasma levels, 81 multiparous Holstein cows were selected from a dairy farm 7 to 21d after calving. The cows were divided into 3 groups: cows with clinical ketosis, cows with subclinical ketosis, and healthy control cows. ...
DOI:
10.3168/jds.2013-6757

29. 2,4-D adsorption from agricultural subsurface drainage by canola stalk-derived activated carbon: insight into the adsorption kinetics models under batch and column conditions

Author:
Mohammad Javad Amiri; Reza Roohi; Mohammad Arshadi; Alireza Abbaspourrad
Source:
Environmental science and pollution research international 2020 v.27 no.14 pp. 16983-16997
ISSN:
0944-1344
Subject:
2,4-D; acetone; activated carbon; adsorbents; adsorption; aromatic compounds; calcium; canola; chemical reactions; drainage water; equations; kinetics; pH; pollution; porous media; research; steam; subsurface drainage
Abstract:
... In this study, the experimental and kinetic modeling investigations were performed to evaluate the ability of mesoporous and microporous canola stalk-derived activated carbon (CSAC) on 2,4-dichlorophenoxyacetic acid (2,4-D) removal from synthetic and natural water in both batch and continuous systems. Three empirical models (pseudo-first-order equation (PFOE), pseudo-second-order equation (PSOE), ...
DOI:
10.1007/s11356-020-08211-7

30. 2-(Diphenylphosphino)-pyridine as an Ambidentate Ligand in Homo-and Hetero-binuclear Complexes of Copper, Silver, and Gold

Author:
M. Elena Olmos; Annette Schier; Hubert Schmidbaur
Source:
Zeitschrift für Naturforschung 2014 v.52 no.2 pp. 203-208
ISSN:
0932-0776
Subject:
acetone; acetonitrile; copper; crystal structure; gold; ligands; methylene chloride; nitrogen; perchlorates; pyridines; silver; spectroscopy
Abstract:
... The reaction of 2-diphenylphosphino-pyridine (1) with AgBF₄ in an equimolar ratio affords the cyclic, dinuclear complex 2 with mixed P,N-coordination of the metal atoms. With two equivalents of 1 the 2:1 complexes 4a,b are formed which have the metal atoms solely Pcoordinated. The previously reported gold complex (3), an analogue of 2, or [Au(tht)₂]ClO₄ (tht = tetrahydrothiophen) also give the 2:1 ...
DOI:
10.1515/znb-1997-0210

31. 2-Propanol reactivity on in situ prepared Au(111)-supported TiO₂ nanocrystals

Author:
Denis V. Potapenko; Zhisheng Li; Yang Lou; Yun Guo; Richard M. Osgood Jr.
Source:
Journal of catalysis 2013 v.297 no. pp. 281-288
ISSN:
0021-9517
Subject:
1-propanol; acetone; alloys; desorption; gold; isopropyl alcohol; nanocrystals; oxidation; propylene; scanning tunneling microscopy; temperature; titanium dioxide
Abstract:
... The reactivity of 2-propanol with TiO₂ nanocrystals supported on Au(111) was studied by temperature-programmed desorption (TPD) and scanning tunneling microscopy (STM). The nanocrystals, which are grown through oxidation of a TiAu surface alloy, had an average height of 1nm and width of 15nm with a dominantly hexagonal morphology. The desorption of propanol and propanol-derived products from the T ...
DOI:
10.1016/j.jcat.2012.10.020

32. A 3D MOF showing unprecedented solvent-induced single-crystal-to-single-crystal transformation and excellent CO₂ adsorption selectivity at room temperature

Author:
Tao Qin; Jun Gong; Junhan Ma; Xin Wang; Yonghua Wang; Yan Xu; Xuan Shen; Dunru Zhu
Source:
Chemical communications 2014 v.50 no.100 pp. 15886-15889
ISSN:
1364-548X
Subject:
acetone; adsorption; ambient temperature; butanol; carbon dioxide; chemical reactions; coordination polymers; crystals; dicarboxylic acids; isopropyl alcohol; ligands; nitrogen; sorbents
Abstract:
... A water stable porous 3D metal–organic framework, [Cu₃L₂(μ₃-OH)₂(μ₂-H₂O)]·2DMA (1, mother crystal, H₂L = 2,2′-dinitrobiphenyl-4,4′-dicarboxylic acid, DMA = N,N-dimethylacetamide), shows unprecedented irreversible solvent-induced substitutions of bridging aqua ligands and guest-exchanges in single-crystal-to-single-crystal (SCSC) transformations at room temperature (RT), producing quantitatively th ...
DOI:
10.1039/c4cc06588c

33. 3D Printed Micro Free-Flow Electrophoresis Device

Author:
Anciaux Sarah K.; Geiger Matthew; Bowser Michael T.
Source:
Analytical chemistry 2016 v.88 no.15 pp. 7675-7682
ISSN:
1520-6882
Subject:
acetone; cost effectiveness; cytochrome c; detection limit; electrophoresis; fluorescent dyes; glass; manufacturing; myoglobin; streams; vapors
Abstract:
... The cost, time, and restrictions on creative flexibility associated with current fabrication methods present significant challenges in the development and application of microfluidic devices. Additive manufacturing, also referred to as three-dimensional (3D) printing, provides many advantages over existing methods. With 3D printing, devices can be made in a cost-effective manner with the ability t ...
DOI:
10.1021/acs.analchem.6b01573

34. 3D processing and characterization of acrylonitrile butadiene styrene (ABS) energetic thin films

Author:
Billy Clark; Zhenhuan Zhang; Gordon Christopher; Michelle L. Pantoya
Source:
Journal of materials science 2017 v.52 no.2 pp. 993-1004
ISSN:
0022-2461
Subject:
acetone; aluminum; burning; energy density; manufacturing; molybdenum; perchlorates; polymers; potassium; slurries; solvents; styrene; thermal degradation; viscoelasticity; viscosity
Abstract:
... This study examined processing and characterization of an energetic material synthesized with a binder that is extensively used in existing additive manufacturing methods. Aluminum (Al), molybdenum trioxide (MoO₃), and potassium perchlorate (KClO₄) are suspended in a solvent–binder system composed of acetone solvent and acrylonitrile butadiene styrene (ABS) binder. The concentration of ABS is vari ...
DOI:
10.1007/s10853-016-0395-5

35. 3D-macrocycles impregnated polybenzimidazole hollow fiber membranes with excellent organic solvent resistance for industrial solvent recovery

Author:
Kai Yu Wang; Bofan Li; Tai-Shung Chung
Source:
Journal of membrane science 2021 v.638 pp. 119678
ISSN:
0376-7388
Subject:
acetone; aromatic hydrocarbons; molecular weight; nanofiltration; oils; porosity; solvents; strength (mechanics)
Abstract:
... A new strategy to synthesize integrally skinned polybenzimidazole (PBI) hollow fiber membranes for organic solvent nanofiltration (OSN) has been developed in this study by means of covalent modification with α,α′-dibromo-p-xylene (DBX) and then ionic impregnation with 4-sulfocalix [8]arene (SCA8). This double modification strategy endows the PBI hollow fiber membranes with synergistically enhanced ...
DOI:
10.1016/j.memsci.2021.119678

36. The 4,5-methano-l-proline as a chiral organocatalysts in direct asymmetric aldol reactions

Author:
Na Yu; Sheng Han; Han Yu
Source:
Tetrahedron 2015 v.71 pp. 4665-4669
ISSN:
0040-4020
Subject:
acetone; chemical reactions; cyclohexanones; enantiomers
Abstract:
... The 4,5-methano-l-proline was studied for the direct asymmetric aldol reaction of acetone or cyclohexanone with various aromatic and aliphaticaldehydes at −20 °C or 0 °C. A loading of only 5mol % of derivative 1a was employed in this catalytic system, and excellent enantioselectivities (up to 99% ee) and yields (up to 98% yield) could be achieved. ...
DOI:
10.1016/j.tet.2015.04.075

37. 4-C-Me-DAB and 4-C-Me-LAB—enantiomeric alkyl-branched pyrrolidine iminosugars—are specific and potent α-glucosidase inhibitors; acetone as the sole protecting group

Author:
Filipa P. da Cruz; Scott Newberry; Sarah F. Jenkinson; Mark R. Wormald; Terry D. Butters; Dominic S. Alonzi; Shinpei Nakagawa; Frederic Becq; Caroline Norez; Robert J. Nash; Atsushi Kato; George W.J. Fleet
Source:
Tetrahedron letters 2011 v.52 no.2 pp. 219-223
ISSN:
0040-4039
Subject:
acetone; alpha-glucosidase; endoplasmic reticulum; enzyme inhibitors; inhibitory concentration 50; nuclear magnetic resonance spectroscopy; pH; rats; sucrose alpha-glucosidase
Abstract:
... The syntheses of 4-C-Me-DAB [1,4-dideoxy-1,4-imino-4-C-methyl-d-arabinitol] from l-erythronolactone and of 4-C-Me-LAB [from d-erythronolactone] require only a single acetonide protecting group. The effect of pH on the NMR spectra of 4-C-Me-DAB [pKₐ of the salt around 8.4] is discussed and illustrates the need for care in the analysis of both coupling constants and chemical shift. 4-C-Me-DAB (for r ...
DOI:
10.1016/j.tetlet.2010.10.173
PubMed:
21157573
PubMed Central:
PMC3000536

38. A 5-alkylresorcinol and three3,4-dihydroisocoumarins derived from Ononis natrix

Author:
Muhammad Yousaf; Adnan J. Al-Rehaily; Mohammad S. Ahmad; Jamal Mustafa; Mohammed A. Al-Yahya; Mansour S. Al-Said; Jianping Zhao; Ikhlas A. Khan
Source:
Phytochemistry letters 2015 v.13 pp. 1-5
ISSN:
1874-3900
Subject:
Ononis natrix; acetone; acetonitrile; aerial parts; antioxidants; cytotoxicity; isocoumarins; nuclear magnetic resonance spectroscopy
Abstract:
... Phytochemical investigation of Ononis natrix L. led to the isolation of an alkylresorcinol (1) and three alkyl isocoumarins (2–4) from the acetonitrile fraction of acetone extract of the aerial part of Ononis natrix. The structures of the compounds were determined by spectroscopic analyses including 1D, 2D NMR, MS, and comparison with literature data. All compounds (1–4) were evaluated for antimic ...
DOI:
10.1016/j.phytol.2015.05.002

39. 96DRA-Urine: A high throughput sample preparation method for urinary proteome analysis

Author:
Xiaoyue Tang; Xiaoping Xiao; Haidan Sun; Shuxin Zheng; Xiaolian Xiao; Zhengguang Guo; Xiaoyan Liu; Wei Sun
Source:
Journal of proteomics 2022 v.257 pp. 104529
ISSN:
1874-3919
Subject:
acetone; alkylation; biomarkers; biomedical research; body fluids; digestion; mass spectrometry; peptides; proteome; proteomics; urinary bladder neoplasms; urine
Abstract:
... Mass spectrometry (MS)-based urinary proteomics is increasingly used for clinical research. A critical step in urinary proteomic analysis comprises the implementation of a reliable sample preparation method with high yields of peptides and proteins. In this study, we developed a urinary sample preparation method, DRA-Urine (Direct reduction/alkylation in urine), which urinary proteins were directl ...
DOI:
10.1016/j.jprot.2022.104529

40. ABE fermentation from enzymatic hydrolysate of NaOH-pretreated corncobs

Author:
Kai Gao; Lars Rehmann
Source:
Biomass and bioenergy 2014 v.66 pp. 110-115
ISSN:
0961-9534
Subject:
Clostridium; acetone; butanol; corn cobs; enzymatic hydrolysis; ethanol; fermentation; hydrolysates; reducing sugars; sediments; sodium hydroxide; solvents
Abstract:
... Acetone butanol ethanol (ABE) was produced from enzymatic-hydrolyzed corncobs by Clostridium saccharobutylicum DSM 13864. Pretreatment of corncobs was carried out with 0.5 mol L−1 NaOH followed by enzymatic hydrolysis. The yield of total reducing sugars was 917 g kg−1 pretreated (de-lignified) and washed corncobs. The hydrolysate was used without sediments removal for ABE fermentation. A solvent p ...
DOI:
10.1016/j.biombioe.2014.03.002

41. ABE production from corn: a recent economic evaluation

Author:
Qureshi, N.; Blaschek, H.P.
Source:
Journal of industrial microbiology & biotechnology 2001 v.27 no.5 pp. 292-297
ISSN:
1367-5435
Subject:
acetone; Clostridium beijerinckii; corn; biological production; butanol; ethanol
Abstract:
... This article details an economic assessment of butanol production from corn using the newly developed hyper-butanol-producing strain of Clostridium beijerinckii BA101. Butanol is produced in batch reactors and recovered by distillation. For a plant with 153,000 metric tons of acetone, butanol, and ethanol (ABE) production capacity, the production equipment cost and total working capital cost is US ...
DOI:
10.1038/sj.jim.7000123
PubMed:
11781804

42. AFM approach to study the function of PGPR's emulsifying properties in cocoa butter based suspensions

Author:
D. Middendorf; A. Juadjur; U. Bindrich; P. Mischnick
Source:
Food structure 2015 v.4 pp. 16-26
ISSN:
2213-3291
Subject:
acetone; atomic force microscopy; chocolate; cocoa butter; emulsifying properties; lecithins; lipid content; lipophilicity; plant growth-promoting rhizobacteria; polyglycerol polyricinoleate; polymers; scanning electron microscopy; sucrose; viscosity; washing; yields
Abstract:
... Polyglycerol polyricinoleate (PGPR) often is used as emulsifier in chocolate, but only little is known on the specific interactions between sucrose particles, cocoa butter and PGPR molecules. The most remarkable effect of PGPR on lipophilic suspensions is the enormous decrease in yield value compared to soy lecithin which is not yet understood. A combination of atomic force microscopy (AFM), scann ...
DOI:
10.1016/j.foostr.2014.11.003

43. The AIRMEX study - VOC measurements in public buildings and schools/kindergartens in eleven European cities: Statistical analysis of the data

Author:
Otmar Geiss; Georgios Giannopoulos; Salvatore Tirendi; Josefa Barrero-Moreno; Bo R. Larsen; Dimitrios Kotzias
Source:
Atmospheric environment 2011 v.45 no.22 pp. 3676-3684
ISSN:
1352-2310
Subject:
acetaldehyde; acetone; adults; air; aromatic hydrocarbons; atmospheric chemistry; buildings; cities; databases; exposure assessment; formaldehyde; monitoring; ozone; schools; statistical analysis; terpenoids; volatile organic compounds; volunteers; warm season; Europe
Abstract:
... Indoor and outdoor air concentrations as well as personal exposure concentrations of volatile organic compounds (VOCs) have been measured during 2003–2008 in public buildings, schools, kindergartens and private homes in eleven cities over Europe covering geographic areas in north, central and south Europe during different seasons within the frame of the AIRMEX (European Indoor Air Monitoring and E ...
DOI:
10.1016/j.atmosenv.2011.04.037

44. Ability of stress-related volatiles to attract and induce attacks by Xylosandrus germanus and other ambrosia beetles

Author:
Ranger, Christopher M.; Reding, Michael E.; Persad, Anand B.; Herms, Daniel A.
Source:
Agricultural and forest entomology 2010 v.12 no.2 pp. 177-185
ISSN:
1461-9555
Subject:
ambrosia beetles; Xylosandrus; insect pests; plant stress; insect control; insect traps; bait traps; ethanol; methanol; acetaldehyde; acetone; insect attractants; tree injection; volatile organic compounds; Magnolia virginiana; ornamental trees; plant nurseries
Abstract:
... 1 Xylosandrus germanus typically colonizes physiologically-stressed deciduous hosts but it is increasingly being recognized as a key pest of ornamental nursery stock. We tested the attractiveness of common plant stress-related volatiles to ambrosia beetles occupying the nursery agroecosystem, as well as their ability to induce attacks on selected trees. Experiments were conducted in Ohio, U.S.A. 2 ...
Handle:
10113/47314
DOI:
10.1111/j.1461-9563.2009.00469.x

45. Abiotic Enantiomerization of Permethrin and Cypermethrin: Effects of Organic Solvents

Author:
Qin, S.; Gan, J.
Source:
Journal of agricultural and food chemistry 2007 v.55 no.14 pp. 5734-5739
ISSN:
0021-8561
Subject:
acetone; isomerization; enantiomers; methylene chloride; isopropyl alcohol; cypermethrin; solvents; hexane; permethrin
Abstract:
... All synthetic pyrethroids are chiral compounds, and isomerization has been frequently observed from exposure to certain solvents. However, so far, pyrethroid isomerization caused by solvents has not been characterized at the enantiomer level. In this study, we evaluated the occurrence of enantiomerization of two commonly used pyrethroids, permethrin and cypermethrin, in various organic solvents an ...
DOI:
10.1021/jf0708894

46. Abortion by the tsetse fly Glossina palpalis palpalis after treatment with insecticides

Author:
Riordan, E.K.
Source:
Entomologia experimentalis et applicata 1986 v.41 no.2 pp. 193-200
ISSN:
0013-8703
Subject:
Glossina palpalis palpalis; acetone; adults; death; deltamethrin; dieldrin; eggs; females; fenitrothion; friction; larvae; milk; permethrin; propoxur; pyrethrins; secretion; sphincters; starvation; uterus
Abstract:
... Batches of wild-caught adult females of Glossina palpalis palpalis R.-D. were treated topically (0.36 μl per fly) with different doses of 14 chemical insecticides in acetone and subsequent abortion (if any) and death of each fly were recorded. Control flies received acetone alone. No fly was fed after treatment. Abortion rates of treated fly-batches and the corresponding control batch were compare ...
DOI:
10.1111/j.1570-7458.1986.tb00528.x

47. Absorbent Filaments from Cellulose Nanofibril Hydrogels through Continuous Coaxial Wet Spinning

Author:
Meri J. Lundahl; Ville Klar; Rubina Ajdary; Nicholas Norberg; Mariko Ago; Ana Gisela Cunha; Orlando J. Rojas
Source:
ACS applied materials & interfaces 2018 v.10 no.32 pp. 27287-27296
ISSN:
1944-8252
Subject:
absorbents; acetone; cellulose; cellulose acetate; cellulose microfibrils; coagulants; coagulation; ethanol; guar gum; hydrogels; modulus of elasticity; nanofibers; polymers; spinning; tensile strength; water binding capacity
Abstract:
... A continuous and scalable method for the wet spinning of cellulose nanofibrils (CNFs) is introduced in a core/shell configuration. Control on the interfacial interactions was possible by the choice of the shell material and coagulant, as demonstrated here with guar gum (GG) and cellulose acetate (CA). Upon coagulation in acetone, ethanol, or water, GG and CA formed supporting polymer shells that i ...
DOI:
10.1021/acsami.8b08153
PubMed:
30014693
PubMed Central:
PMC6150648

48. Acaricidal active fractions from acetone extract of Aloe vera L. against Tetranychus cinnabarinus and Panonychus citri

Author:
Yongqiang Zhang; Qian Zhang; Jinxiang Luo; Wei Ding
Source:
Acta physiologiae plantarum 2017 v.39 no.9 pp. 195
ISSN:
0137-5881
Subject:
Aloe vera; Panonychus citri; Tetranychus cinnabarinus; acaricidal properties; acetone; bioassays; chromatography; emodin; mortality; regression analysis; spirodiclofen; toxicity
Abstract:
... This study aimed to isolate acaricidal active fractions from acetone extract of Aloe vera L. and investigate the toxicity of these fractions against Tetranychus cinnabarinus (T. cinnabarinus) and Panonychus citri (P. citri). Acetone extract of A. vera L. was isolated by immersing in acetone for 72 h, and diverse fractions were fractionated by column chromatography. The acaricidal activity of each ...
DOI:
10.1007/s11738-017-2496-4

49. Acaricidal activity of Aloe vera L. leaf extracts against Tetranychus cinnabarinus (Boisduval) (Acarina: Tetranychidae)

Author:
Jie Wei; Wei Ding; Yan-Guo Zhao; Patcharaporn Vanichpakorn
Source:
Journal of Asia-Pacific entomology 2011 v.14 no.3 pp. 353-356
ISSN:
1226-8615
Subject:
Aloe vera; Tetranychus cinnabarinus; acaricidal properties; acaricides; acetone; adults; bioassays; ethanol; ethyl acetate; females; leaf extracts; leaves; lethal concentration 50; mortality; silica gel
Abstract:
... Four different extracts of Aloe vera L. leaves were evaluated for acaricidal activity against female adults of carmine spider mite, Tetranychus cinnabarinus (Boisduval), by slide-dip bioassay. At 72h after treatment, the acetone extract showed the strongest acaricidal activity with LC₅₀ value of 90ppm. The LC₅₀ values for ethyl acetate, water, and ethanol extracts were 113, 340, and 391ppm, respec ...
DOI:
10.1016/j.aspen.2011.04.006

50. Acaricidal activity of the organic extracts of thirteen South African plants against Rhipicephalus (Boophilus) decoloratus (Acari: Ixodidae)

Author:
Gerda Fouche; Mary Ramafuthula; Vusi Maselela; Moses Mokoena; Jeremiah Senabe; Tlabo Leboho; Bellonah M. Sakong; Olubukola T. Adenubi; Jacobus N. Eloff; Kevin W. Wellington
Source:
Veterinary parasitology 2016 v.224 pp. 39-43
ISSN:
0304-4017
Subject:
acetone; Rhipicephalus decoloratus; ticks; plant extracts; flowers; pathogens; tick control; cattle production; acaricides; control methods; acaricidal properties; leaves; toxicity; larvae; ethanol; mortality; Cissus quadrangularis; Asia; South Africa
Abstract:
... The African blue tick, Rhipicephalus (Boophilus) decoloratus, is a common tick species found in South Africa and affects cattle production as well as vectoring pathogens in regions of Africa and Asia. In an attempt to develop a non-toxic, lower cost and environmentally friendly tick control method, twenty-six plant extracts were prepared from thirteen plant species using 99.5% acetone and 99% etha ...
DOI:
10.1016/j.vetpar.2016.05.011

51. Accelerated solvent extraction of phenolic compounds from sorghum brans

Author:
F. Barros; L. Dykes; J.M. Awika; L.W. Rooney
Source:
Journal of cereal science 2013 v.58 no.2 pp. 305-312
ISSN:
0733-5210
Subject:
acetone; antioxidants; beverages; bran; carbohydrates; cell wall components; ethanol; grains; heat; methanol; polyphenols; proteins; solvents; tannins; temperature
Abstract:
... Most phenolic compounds in cereals are bound to cell wall components and thus they are difficult to extract. Finding techniques to enhance polyphenol extraction is important due to their potential health benefits. The objective of this study was to evaluate extractability of sorghum phenolic compounds using solvents under high pressure and temperature conditions. Polyphenols from black and tannin ...
DOI:
10.1016/j.jcs.2013.05.011

52. Access to chromone-3-carboxylic acid via silver mediated coupling of 4-hydroxy coumarin and enol ester

Author:
Priyadarshini Mishra; Nayim Sepay; Niranjan Panda
Source:
Tetrahedron letters 2021 v.75 pp. 153206
ISSN:
0040-4039
Subject:
4-hydroxycoumarin; acetone; carboxylic acids; cycloaddition reactions; density functional theory; enols; esters; reaction mechanisms; silver
Abstract:
... A silver-mediated aerobic approach to access 2-methyl-chromone-3-carboxylic acid from the reaction of 4-hydroxy coumarin and enol ester in the presence of base has been presented. Mechanistic investigation suggests that the base induced Michael-type addition reaction of 4-hydroxy coumarin to the enol ester resulting the sequential ring opening and closing with the liberation of acetone are the key ...
DOI:
10.1016/j.tetlet.2021.153206

53. Accuracy of milk ketone bodies from flow-injection analysis for the diagnosis of hyperketonemia in dairy cows

Author:
J. Denis-Robichaud; J. Dubuc; D. Lefebvre; L. DesCôteaux
Source:
Journal of dairy science 2014 v.97 no.6 pp. 3364-3370
ISSN:
0022-0302
Subject:
3-hydroxybutyric acid; Fourier transform infrared spectroscopy; acetone; blood; correlation; cross-sectional studies; dairy cows; dairy herds; herd improvement; hyperketonemia; ketone bodies; milk; milk fat; models; monitoring; prediction
Abstract:
... The objectives of this study were (1) to determine the correlations between blood β-hydroxybutyrate (BHBA) and milk components [BHBA, acetone, fat, protein, and fat:protein (F:P) ratio], and (2) to establish optimal thresholds for milk components to predict hyperketonemia in dairy cows. Data on 163 cows from 37 herds were used in this cross-sectional study. Herds were visited once during the study ...
DOI:
10.3168/jds.2013-6744

54. Accurately controlling the hierarchical nanostructure of polyamide membranes via electrostatic atomization-assisted interfacial polymerization

Author:
Jingjing Chen; Jie Zhang; Xiaoli Wu; Xulin Cui; Wenpeng Li; Haoqin Zhang; Jingtao Wang; Xing-Zhong Cao; Peng Zhang
Source:
Journal of materials chemistry A 2020 v.8 no.18 pp. 9160-9167
ISSN:
2050-7496
Subject:
acetone; adsorption; atomization; carbon dioxide; droplets; electrons; nanomaterials; polyamides; polymerization; solvents; spectroscopy; thin film composite membranes
Abstract:
... Interfacial polymerization is a classical method for the preparation of thin-film composite (TFC) membranes. However, facile and controllable fabrication remains a grand challenge. Here, a dual-needle electrostatic atomization strategy is presented to atomize aqueous and organic phases into droplets respectively, and then a polymerization reaction occurs at interfaces. This method shows excellent ...
DOI:
10.1039/d0ta02150d

55. Acetalisation of bio-glycerol with acetone to produce solketal over sulfonic mesostructured silicas

Author:
Gemma Vicente; Juan A. Melero; Gabriel Morales; Marta Paniagua; Eric Martín
Source:
Green chemistry 2010 v.12 no.5 pp. 899-907
ISSN:
1463-9270
Subject:
acetone; acidification; biodiesel; catalysts; catalytic activity; cation exchange; evaporation; gasoline; glycerol; green chemistry; silica; sodium; sulfonic acids
Abstract:
... Sulfonic acid-functionalized mesostructured silicas have demonstrated excellent catalytic behaviour in the acetalisation of glycerol with acetone to yield 2,2-dimethyl-1,3-dioxolane-4-methanol, also known as solketal. This molecule constitutes an excellent compound for the formulation of gasoline, diesel and biodiesel fuels. The activity achieved with arenesulfonic acid-functionalized silica is co ...
DOI:
10.1039/b923681c

56. Acetone Cataluminescence as an Indicator for Evaluation of Heterogeneous Base Catalysts in Biodiesel Production

Author:
Zhang Lijuan; Chen Yingchun; He Nan; Lu Chao
Source:
Analytical chemistry 2014 v.86 no.1 pp. 870-875
ISSN:
1520-6882
Subject:
acetone; aluminum oxide; biodiesel; catalysts; condensation reactions; desorption; fuel production; hydroxides; magnesium oxide; screening; statistical analysis; titanium dioxide; zinc oxide
Abstract:
... Rapid and effective evaluation techniques for heterogeneous base catalysts in biodiesel production are highly desirable with increased global demand for biofuels. In this work, we have discovered direct connections between the number of medium-strength basic sites of heterogeneous base catalysts in biodiesel production and cataluminescence intensity in acetone aldol condensation reactions. Accordi ...
DOI:
10.1021/ac4034399

57. Acetone Enhances the Direct Analysis of Procyanidin- and Prodelphinidin-Based Condensed Tannins in Lotus Species by the Butanol−HCl−Iron Assay

Author:
John H. Grabber; Wayne E. Zeller; Irene Mueller-Harvey
Source:
Journal of Agricultural and Food Chemistry 2013 v.61 no.11 pp. 2669-2678
ISSN:
0021-8561
Subject:
Lotus; acetone; anthocyanidins; butanol; forage crops; hydrochloric acid; iron; leaves; nuclear magnetic resonance spectroscopy; proanthocyanidins; solubilization; solvents; spectrophotometers; tannins
Abstract:
... The butanol−HCl spectrophotometric assay is widely used for quantifying extractable and insoluble condensed tannins (CT, syn. proanthocyanidins) in foods, feeds, and foliage of herbaceous and woody plants, but the method underestimates total CT content when applied directly to plant material. To improve CT quantitation, we tested various cosolvents with butanol−HCl and found that acetone increased ...
Handle:
10113/56823
DOI:
10.1021/jf304158m
CHORUS:
10.1021/jf304158m

58. Acetone Precipitation of Heterofucoidans from Sargassum muticum Autohydrolysis Extracts

Author:
Valeria Acevedo-García; Noelia Flórez-Fernández; Marta López-García; José Manuel López Vilariño; Herminia Domínguez; María Dolores Torres
Source:
Waste and biomass valorization 2021 v.12 no.2 pp. 867-877
ISSN:
1877-2641
Subject:
Sargassum muticum; acetone; adenocarcinoma; alginates; autohydrolysis; biomass; colon; cytotoxicity; fucoidan; humans; oligosaccharides; solubilization; sulfates; viscoelasticity; viscosity; wastes
Abstract:
... The brown seaweed Sargassum muticum was processed by non isothermal autohydrolysis under conditions selected to maximize fucoidan solubilization (170 °C). Acetone precipitation was tried for recovery of fucose-containing oligosaccharides present in hydrolyzates. The acetone:hydrolyzate volume ratio influenced both yields and composition of the precipitated fractions. The sugar components were most ...
DOI:
10.1007/s12649-020-01044-y

59. Acetone Precipitation of the Scrapie Agent Results in Successful Recovery of PrPSc but Decreased Infectivity

Author:
Smith J. D.; Greenlee J. J.; Foster G. H.; Nicholson E. M.
Source:
Journal of agricultural and food chemistry 2012 v.60 no.18 pp. 4758-4762
ISSN:
1520-5118
Subject:
PrPSc proteins; Western blotting; acetone; bioassays; brain; mice; microorganisms; pathogenicity; sodium hydroxide; sodium hypochlorite
Abstract:
... Bioassay is considered the most sensitive method for evaluating prion inactivation procedures. Because prions are resistant to methods effective at inactivating conventional microorganisms, prion inactivation research has focused on relatively harsh alternatives, such as concentrated sodium hypochlorite or sodium hydroxide. Often, bioassay for residual infectivity in these studies requires dilutio ...
DOI:
10.1021/jf300639h
PubMed:
22519670

60. Acetone Reaction Pathways as a Model Bio-oxygenate in a Hydrocarbon Medium on Zeolite Y and ZSM-5 Catalysts: In Situ FTIR Study

Author:
Timur A. Palankoev; Konstantin I. Dement’ev; Diana V. Kuznetsova; Galina N. Bondarenko; Anton L. Maximov
Source:
ACS sustainable chemistry & engineering 2020 v.8 no.29 pp. 10892-10899
ISSN:
2168-0485
Subject:
acetone; benzene; cyclohexanes; green chemistry; hexane; propane; zeolites
Abstract:
... The pathways for the conversion of model compounds (acetone, n-hexane, hexene-1, cyclohexane, benzene) in pure form and acetone–hydrocarbon binary mixtures on Y and ZSM-5 zeolites are investigated. The conditions of the experiments simulate the catalytic cracking of bio-oil in a mixture with conventional feed. For the n-hexane–acetone model mixture, a significant effect of acetone addition on hydr ...
DOI:
10.1021/acssuschemeng.0c03215

61. An Acetone Sensor Based on Plasma-Assisted Cataluminescence and Mechanism Studies by Online Ionizations

Author:
Ni Zeng; Zi Long; Yan Wang; Jianghui Sun; Jin Ouyang; Na Na
Source:
Analytical chemistry 2019 v.91 no.24 pp. 15763-15768
ISSN:
1520-6882
Subject:
acetone; biomarkers; catalytic activity; diabetes mellitus; ionization; ions; mass spectrometry; oxidation; reaction mechanisms
Abstract:
... The new development of noninvasive diagnosis in breath analysis requires the fabrication of inexpensive and rapid sensing technologies, whose sensing mechanisms are further encouraged to be studied. Here based on the dramatically enhanced plasma-assisted cataluminescence (PA-CTL) signals, a new sensor was constructed for the detection of acetone, an important biomarker of diabetes mellitus in brea ...
DOI:
10.1021/acs.analchem.9b04023

62. Acetone adsorption capacity of sulfur-doped microporous activated carbons prepared from polythiophene

Author:
Junchao Zhu; Ruofei Chen; Zheng Zeng; Changqing Su; Ke Zhou; Yamian Mo; Yang Guo; Fan Zhou; Jie Gao; Liqing Li
Source:
Environmental science and pollution research 2019 v.26 no.16 pp. 16166-16180
ISSN:
0944-1344
Subject:
acetone; activated carbon; sulfur; energy; moieties; surface area; models; activation energy; porous media; molecular dynamics; sulfonic acids; oxidation; sorption isotherms; temperature; desorption; adsorption
Abstract:
... Sulfur-doped activated carbons (SACs) with high sulfur content and large specific surface area were synthesized from polythiophene for acetone removal. The sulfur content of carbons (3.10–8.43 at.%) could be tunable by adjusting the activation temperature. The BET surface area and pore volume of the obtained samples were 916–2020 m² g⁻¹ and 0.678–1.100 cm³ g⁻¹, with a significant proportion of mic ...
DOI:
10.1007/s11356-019-05051-y

63. Acetone affects flight behaviour and expression of the vitellogenin gene of Pissodes strobi

Author:
Sahota, T.S.; Leal, I.; White, E.; Manville, J.F.; Ibaraki, A.; Hollmann, J.
Source:
Canadian entomologist 1998 v.130 no.3 pp. 383-384
ISSN:
0008-347X
Subject:
Pissodes strobi; flight; acetone; juvenile hormones; structural genes; gene expression; messenger RNA
DOI:
10.4039/Ent130383-3

64. Acetone alkylation with ethanol over multifunctional catalysts by a borrowing hydrogen strategy

Author:
Gy. Onyestyák; Gy. Novodárszki; R. Barthos; Sz. Klébert; Á. Farkas Wellisch; A. Pilbáth
Source:
RSC advances 2015 v.5 no.120 pp. 99502-99509
ISSN:
2046-2069
Subject:
acetone; activated carbon; additives; alkylation; biomass; catalysts; copper; ethanol; fermentation; fuel production; hydrogen; hydrotalcite; palladium; potassium hydroxide; temperature
Abstract:
... Step by step alkylation of acetone (A) with ethanol (E) in a ratio of 1 : 2 was investigated. A fixed bed flow-through reactor system was used at a total pressure of 21 bar and in the temperature range of 150–350 °C in inert He or a reducing H₂ medium. Following the hydrogen borrowing methodology, two types of catalysts were prepared; using neutral activated carbon (AC) and alkaline hydrotalcite ( ...
DOI:
10.1039/c5ra17889d

65. Acetone and Butanone Metabolism of the Denitrifying Bacterium "Aromatoleum aromaticum" Demonstrates Novel Biochemical Properties of an ATP-Dependent Aliphatic Ketone Carboxylase

Author:
Karola Schühle; Johann Heider
Source:
Journal of bacteriology 2012 v.194 no.1 pp. 131-141
ISSN:
0021-9193
Subject:
Rhodocyclaceae; acetone; adenosine monophosphate; adenosine triphosphate; adenosinetriphosphatase; aerobiosis; anaerobiosis; carboxylation; chromatography; denitrifying bacteria; hydrolysis; iron; stoichiometry; zinc
Abstract:
... The anaerobic and aerobic metabolism of acetone and butanone in the betaproteobacterium "Aromatoleum aromaticum" is initiated by their ATP-dependent carboxylation to acetoacetate and 3-oxopentanoic acid, respectively. Both reactions are catalyzed by the same enzyme, acetone carboxylase, which was purified and characterized. Acetone carboxylase is highly induced under growth on acetone or butanone ...
DOI:
10.1128/JB.05895-11
PubMed:
22020645
PubMed Central:
PMC3256595

66. Acetone and Diethyl ether: Improve cold flow properties of Dairy Washed Milkscum biodiesel

Author:
H.V. Srikanth; J. Venkatesh; Sharanappa Godiganur; Bhaskar Manne
Source:
Renewable energy 2019 v.130 pp. 446-451
ISSN:
0960-1481
Subject:
acetone; biodiesel; crystallization; differential scanning calorimetry; ethyl ether; feedstocks; fluid mechanics; industrial wastes; milk; solvents; temperature
Abstract:
... The trend in utilizing biological industrial wastes to produce biofuels has been increasingly popular over the past decades. The dairy washed milk scum (DWMS) is one of such potential industrial waste, which can be used as feedstock for the production of biodiesel. One of the inherent problems of DWMS biodiesel is its poor low temperature properties. In this investigation, the influence of two sol ...
DOI:
10.1016/j.renene.2018.06.051

67. Acetone and ethanol sensing characteristics of magnesium zinc ferrite nano-particulate chemi-resistive sensor

Author:
M. Karmakar; P. Das; M. Pal; B. Mondal; S. B. Majumder; K. Mukherjee
Source:
Journal of materials science 2014 v.49 no.16 pp. 5766-5771
ISSN:
0022-2461
Subject:
X-ray diffraction; acetone; air; electron microscopy; ethanol; magnesium; microstructure; nanocrystals; nanoparticles; temperature; vapors; zinc
Abstract:
... In the present work, acetone and ethanol sensing characteristics of wet chemically prepared magnesium zinc ferrite (MZFO) nano-particles have been investigated. X-ray diffraction and electron microscopy studies are carried out to know the phase formation behaviour and microstructure evolution of the synthesized particles. The gas sensing characteristics (response %, response time, recovery time, e ...
DOI:
10.1007/s10853-014-8302-4

68. Acetone and methanol fruit extracts of Terminalia paniculata inhibit HIV-1 infection in vitro

Author:
Ankita Durge; Pratiksha Jadaun; Ashish Wadhwani; Ashish A. Chinchansure; Madhukar Said; H. V. Thulasiram; Swati P. Joshi; Smita S. Kulkarni
Source:
Natural product research 2017 v.31 no.12 pp. 1468-1471
ISSN:
1478-6427
Subject:
HIV infections; Human immunodeficiency virus 1; RNA-directed DNA polymerase; Terminalia; acetone; antigens; cytotoxicity; dose response; fruit extracts; mechanism of action; methanol; mononuclear leukocytes; proteinases
Abstract:
... In this study, we report the in vitro anti-HIV1 activity of acetone and methanol extracts of fruit of Terminalia paniculata . Cytotoxicity tests were conducted on TZM-bl cells and peripheral blood mononuclear cells (PBMC), the CC ₅₀ values of both the extracts were ≥260 μg/mL. Using TZM-bl cells, the extracts were tested for their ability to inhibit replication of two primary isolates HIV-1 (X4, S ...
DOI:
10.1080/14786419.2016.1258561

69. Acetone as Indicator of Lipid Oxidation in Stored Margarine

Author:
Sarah Fruehwirth; Sandra Egger; Thomas Flecker; Miriam Ressler; Nesrin Firat; Marc Pignitter
Source:
Antioxidants 2021 v.10 no.1 pp. -
ISSN:
2076-3921
Subject:
acetone; emulsions; ingredients; lipid peroxidation; margarine; mass spectrometry; oxidative stability; peroxide value; peroxides; storage; triacylglycerols; vegetable oil
Abstract:
... Margarine contains a minimum of 80% fat and is therefore prone to lipid oxidation. While lipid oxidation in vegetable oils and o/w emulsions has been thoroughly investigated, studies about the oxidative stability and the identification of potential indicators of lipid oxidation in margarine are scarce. To evaluate the oxidative stability and to indicate the progress of lipid oxidation, four differ ...
DOI:
10.3390/antiox10010059

70. Acetone as a greener alternative to acetonitrile in liquid chromatographic fingerprinting

Author:
Cristiano Soleo Funari; Renato Lajarim Carneiro; Manish M. Khandagale; Alberto José Cavalheiro; Emily F. Hilder
Source:
Journal of separation science 2015 v.38 no.9 pp. 1458-1465
ISSN:
1615-9306
Subject:
acetone; acetonitrile; aerosols; detectors; environmental law; experimental design; high performance liquid chromatography; physicochemical properties; reversed-phase liquid chromatography; solvents; wastes
Abstract:
... A considerable amount of chemical waste from liquid chromatography analysis is generated worldwide. Acetonitrile is the most employed solvent in liquid chromatography analyses since it exhibits favorable physicochemical properties for separation and detection, but it is an unwelcome solvent from an environmental point of view. Acetone might be a much greener alternative to replace acetonitrile in ...
DOI:
10.1002/jssc.201401324

71. Acetone as a polar cosolvent for pyridinium-based ionic liquids

Author:
Vitaly V. Chaban
Source:
RSC advances 2016 v.6 no.11 pp. 8906-8912
ISSN:
2046-2069
Subject:
acetone; diffusivity; ionic liquids; viscosity
Abstract:
... This work reports transport and structure properties of the three pyridinium-based ionic liquids (RTILs) – N-butylpyridinium hexafluorophosphate [BPY][PF₆], N-butylpyridinium trifluoromethanesulfonate [BPY][TF] and N-butylpyridinium bis(trifluoromethanesulfonyl)imide [BPY][TFSI] – in their mixtures with acetone (ACET). The ionic conductivity maximum occurs at 10 mol% RTIL, irrespective of the anio ...
DOI:
10.1039/c5ra19511j

72. Acetone as biomarker for ketosis buildup capability - a study in healthy individuals under combined high fat and starvation diets

Author:
Amlendu Prabhakar; Ashley Quach; Haojiong Zhang; Mirna Terrera; David Jackemeyer; Xiaojun Xian; Francis Tsow; Nongjian Tao; Erica S Forzani
Source:
Nutrition journal 2015 v.14 no.1 pp. 28
ISSN:
1475-2891
Subject:
acetone; analysis of variance; biomarkers; body mass index; cross-over studies; energy intake; epilepsy; experimental design; fasting; high fat diet; ketogenic diet; ketosis; lifestyle; lipid content; resting energy expenditure; starvation; weight loss
Abstract:
... BACKGROUND: Ketogenic diets are high fat and low carbohydrate or very low carbohydrate diets, which render high production of ketones upon consumption known as nutritional ketosis (NK). Ketosis is also produced during fasting periods, which is known as fasting ketosis (FK). Recently, the combinations of NK and FK, as well as NK alone, have been used as resources for weight loss management and trea ...
DOI:
10.1186/s12937-015-0028-x
PubMed:
25897953
PubMed Central:
PMC4471925

73. Acetone extracted cottonseed meals without catty odors

Author:
Hron R.J. Sr.; Kuk, M.S.
Source:
Journal of food science : an official publication of the Institute of Food Technologists 1989 v.54 no.4 pp. 1088-1089
ISSN:
0022-1147
Subject:
cottonseed meal; food processing; extraction; acetone; odors
Abstract:
... Delintered cottonseed was hulled and flaked. Moisture-adjusted cooked and uncooked samples were either dried or left undried, and all samples were then Soxhlet-extracted with acetone for five hours and desolventized. Sensory testing of gruels prepared from the meals indicated that if free moisture was not present during acetone extraction, catty odors were not found in extracted meals. Gas chromat ...
DOI:
10.1111/j.1365-2621.1989.tb07954.x

74. Acetone extracts of three selected plants induce toxicological and biological effects against the house mosquito, Culex pipiens (Diptera: Culicidae)

Author:
Khalid A. Asiry
Source:
Journal of vector ecology 2022 v.47 no.1 pp. 1-8
ISSN:
1081-1710
Subject:
Citrullus colocynthis; Culex pipiens; Lantana camara; acetone; adults; eggs; exposure duration; larval development; larvicides; mortality; pupae; pupation; toxicity; toxicology
Abstract:
... The biological effect of acetone extracts from three selected plants, Lantana camara, Rhazya astricta, and Citrullus colocynthis, on the egg hatch rate, larvicidal activity, and larval development of Culex pipiens L. was investigated. The egg hatch rate of Cx. pipiens was significantly reduced (P<0.01) when the extracts of L. camara were used. Moreover, the used extracts significantly exhibited a ...
DOI:
10.52707/1081-1710-47.1.1

75. Acetone facilitated DNA sampling from electrical tapes improves DNA recovery and enables latent fingerprints development

Author:
Ilan Feine; Moshe Shpitzen; Boris Geller; Eran Salmon; Tsach Peleg; Jonathan Roth; Ron Gafny
Source:
Forensic science international 2017 v.276 pp. 107-110
ISSN:
0379-0738
Subject:
DNA; acetone; cell culture; forensic sciences; models
Abstract:
... Electrical tapes (ETs) are a common component of improvised explosive devices (IEDs) used by terrorists or criminal organizations and represent a valuable forensic resource for DNA and latent fingerprints recovery. However, DNA recovery rates are typically low and usually below the minimal amount required for amplification. In addition, most DNA extraction methods are destructive and do not allow ...
DOI:
10.1016/j.forsciint.2017.04.023

76. Acetone fraction from Sechium edule (Jacq.) S.w. edible roots exhibits anti-endothelial dysfunction activity

Author:
Celeste Trejo-Moreno; Gabriela Castro-Martínez; Marisol Méndez-Martínez; Jesús Enrique Jiménez-Ferrer; José Pedraza-Chaverri; Gerardo Arrellín; Alejandro Zamilpa; Omar Noel Medina-Campos; Galia Lombardo-Earl; Gerardo Joel Barrita-Cruz; Beatriz Hernández; Christian Carlos Ramírez; María Angélica Santana; Gladis Fragoso; Gabriela Rosas
Source:
Journal of ethnopharmacology 2018 v.220 pp. 75-86
ISSN:
0378-8741
Subject:
Sechium edule; acetone; angiotensin II; antihypertensive effect; antioxidants; blood pressure; buds; chemical constituents of plants; cinnamic acid; enzyme activity; enzyme-linked immunosorbent assay; females; fruits; hypertension; immunohistochemistry; inflammation; intercellular adhesion molecule-1; interleukin-10; interleukin-1beta; interleukin-4; interleukin-6; intraperitoneal injection; kidneys; leaves; linoleic acid; liver; medicinal plants; mice; models; myristic acid; oxidative stress; palmitic acid; pathogenesis; roots; stems; surveys; traditional medicine; transforming growth factor beta; tumor necrosis factor-alpha; Mexico
Abstract:
... A recent ethnomedical survey on medicinal plants grown in Mexico revealed that Sechium edule (Jacq.) Sw. (Cucurbitaceae) is one of the most valued plant species to treat cardiovascular diseases, including hypertension. Fruits, young leaves, buds, stems, and tuberous roots of the plant are edible. Considering that endothelial dysfunction induced by Angiotensin II plays an important role in the path ...
DOI:
10.1016/j.jep.2018.02.036

77. Acetone fractionation: a simple and efficient method to improve the performance of lignin for dye pollutant removal

Author:
Hao Li; Ze Yuan; Yuyu Xing; Jiarong Li; Jing Fang; Lifang Chang; Chunli Li
Source:
RSC advances 2019 v.9 no.61 pp. 35895-35903
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; acetone; adsorbents; adsorption; aqueous solutions; endothermy; fractionation; ionic strength; kinetics; lignin; methylene blue; models; pollution control; sorption isotherms; temperature; thermodynamics
Abstract:
... In this work, it was found that the adsorption capacity of lignin to cationic dye (methylene blue, MB) from aqueous solution could be significantly improved by simple acetone fractionation. The removal efficiency of MB by acetone insoluble kraft lignin (AIKL) was 10 times that of unfractionated kraft lignin (KL). And the maximum capacity of AIKL could reach up to 623.4 mg g⁻¹. And the high removal ...
DOI:
10.1039/c9ra07017f

78. Acetone gas sensor based on NiO/ZnO hollow spheres: Fast response and recovery, and low (ppb) detection limit

Author:
Chang Liu; Liupeng Zhao; Boqun Wang; Peng Sun; Qingji Wang; Yuan Gao; Xishuang Liang; Tong Zhang; Geyu Lu
Source:
Journal of colloid and interface science 2017 v.495 pp. 207-215
ISSN:
0021-9797
Subject:
acetone; detection limit; nanoparticles; nickel oxide; zinc oxide
Abstract:
... NiO/ZnO composites were synthesized by decorating numerous NiO nanoparticles on the surfaces of well dispersed ZnO hollow spheres using a facile solvothermal method. Various kinds of characterization methods were utilized to investigate the structures and morphologies of the hybrid materials. The results revealed that the NiO nanoparticles with a size of ∼10nm were successfully distributed on the ...
DOI:
10.1016/j.jcis.2017.01.106

79. Acetone hydrogenation in exothermic reactor of an isopropanol–acetone–hydrogen chemical heat pump: effect of intra-particle mass and heat transfer

Author:
Yanjun Duan; Min Xu; Xiulan Huai; Xunfeng Li
Source:
Chinese science bulletin 2014 v.59 no.33 pp. 4436-4443
ISSN:
1001-6538
Subject:
acetone; biogeography; computer software; heat production; heat pumps; heat transfer; hydrogenation; isopropyl alcohol; models; porous media; temperature
Abstract:
... Intra-particle mass and heat transfer plays an important role in performance of the exothermic fixed-bed reactor for an isopropanol–acetone–hydrogen chemical heat pump. In this work, an exothermic fixed-bed reactor model, taking into account the actual packing structure, is established in the commercial software Fluent. A 120° segment of a tube with tube-to-particle diameter ratio (n) of 4, where ...
DOI:
10.1007/s11434-014-0610-1

80. Acetone in the atmosphere of Hong Kong: Abundance, sources and photochemical precursors

Author:
H. Guo; Z.H. Ling; K. Cheung; D.W. Wang; I.J. Simpson; D.R. Blake
Source:
Atmospheric environment 2013 v.65 pp. 80-88
ISSN:
1352-2310
Subject:
acetone; air; atmospheric chemistry; biomass; burning; mixing; models; oxidation; ozone; solvents; China
Abstract:
... Intensive field measurements were carried out at a mountain site and an urban site at the foot of the mountain from September to November 2010 in Hong Kong. Acetone was monitored using both canister air samples and 2,4-dinitrophenylhydrazine cartridges. The spatiotemporal patterns of acetone showed no difference between the two sites (p > 0.05), and the mean acetone mixing ratios on O3 episode day ...
DOI:
10.1016/j.atmosenv.2012.10.027

81. Acetone leaf extracts of Breonadia salicina (Rubiaceae) and ursolic acid protect oranges against infection by Penicillium species

Author:
S.M. Mahlo; J.N. Eloff
Source:
South African journal of botany 2014 v.93 pp. 48-53
ISSN:
0254-6299
Subject:
Citrus; Penicillium expansum; Rubiaceae; acetone; amphotericin B; antifungal properties; colorimetry; cytotoxicity; fruit quality; in vitro studies; industry; infection; kidney cells; leaf extracts; minimum inhibitory concentration; monkeys; oranges; plant pathogenic fungi; synergism; tetrazolium; ursolic acid
Abstract:
... The activity of acetone leaf extracts of Breonadia salicina and the main antifungal compound isolated from the extract, ursolic acid, was determined against three important plant fungal pathogens (Penicillium expansum, P. janthinellum and P. digitatum) to evaluate their potential use in combating post-harvest infections of oranges. In an in vitro assay, acetone extracts had good antifungal activit ...
DOI:
10.1016/j.sajb.2014.03.003

82. Acetone leaf extracts of seven invasive weeds have promising activity against eight important plant fungal pathogens

Author:
M.M. Meela; L.K. Mdee; P. Masoko; J.N. Eloff
Source:
South African journal of botany 2019 v.121 pp. 442-446
ISSN:
0254-6299
Subject:
Aristolochia; Aspergillus niger; Aspergillus parasiticus; Chromolaena odorata; Fusarium; Ipomoea alba; Nicotiana; Passiflora; Penicillium expansum; Penicillium janthinellum; Phytophthora; Pythium ultimum; Solanum seaforthianum; Tecoma stans; Thanatephorus cucumeris; acetone; active ingredients; antifungal properties; bioassays; fractionation; fungicides; invasive species; leaf extracts; minimum inhibitory concentration; plant pathogenic fungi; plants (botany)
Abstract:
... Extracts of many plant species have substantial antifungal activity, therefore the use of plant extracts with good activity against plant fungal pathogens could lead to the development of inexpensive and environmentally acceptable fungicides based on locally available natural products. Because large quantities of invasive weeds are available we decided to determine the antifungal activity of aceto ...
DOI:
10.1016/j.sajb.2018.12.007

83. Acetone leaf extracts of some South African trees with high activity against Escherichia coli also have good antimycobacterial activity and selectivity index

Author:
Ishaku L. Elisha; Francien S. Botha; Balungile Madikizela; Lyndy J. McGaw; Jacobus N. Eloff
Source:
BMC complementary and alternative medicine 2017 v.17 no.1 pp. 327
ISSN:
1472-6882
Subject:
Escherichia coli; Mycobacterium aurum; Mycobacterium fortuitum; Mycobacterium smegmatis; Mycobacterium tuberculosis; acetone; alternative medicine; antibacterial properties; cytotoxicity; humans; kidney cells; leaf extracts; monkeys; pathogens; rifampicin; streptomycin; trees; tuberculosis
Abstract:
... BACKGROUND: Tuberculosis is a world-wide problem affecting humans and animals. There is increasing development of resistance of the pathogens to current antimycobacterial agents. Many authors have investigated activities of extracts and isolated compounds from plants. The traditional uses of plants have frequently been the criterion to select plants investigated. In this contribution, we investiga ...
DOI:
10.1186/s12906-017-1831-z
PubMed:
28629354
PubMed Central:
PMC5477271

84. Acetone photoactivated process: application to the degradation of refractory organic pollutants in very saline waters

Author:
Hafida Bendjama; Slimane Merouani; Oualid Hamdaoui; Mohammed Bouhelassa
Source:
Water and environment journal 2020 v.34 Suppl S1 pp. 87-94
ISSN:
1747-6585
Subject:
acetone; carcinogenicity; dyes; energy; environment; models; mutagens; oxygen; photolysis; seawater; thermodynamics
Abstract:
... Herein, we show the first report on the degradation of hazardous organic pollutants in very saline matrice (seawater) using acetone photoactivated process at 253.7 nm. Chloral black (CB), a very persistent dye of well‐established carcinogenic and mutagenic effects, was chosen a substrate model. The photodegradation of CB was monotonically increased in the presence of acetone. About 90% of CB (25.5 ...
DOI:
10.1111/wej.12507

85. Acetone preservation: a practical technique for molecular analysis

Author:
Fukatsu, T.
Source:
Molecular ecology 1999 v.8 no.11 pp. 1935-1945
ISSN:
0962-1083
Subject:
Acyrthosiphon pisum; insect pests; Gram-negative bacteria; symbionts; DNA; ribosomal RNA; sampling; acetone; ethanol; polymerase chain reaction; animal proteins; polyacrylamide gel electrophoresis; immunoblotting; nucleic acid hybridization
DOI:
10.1046/j.1365-294x.1999.00795.x
PubMed:
10620236

86. Acetone pretreatment for improvement of acetone, butanol, and ethanol production from sweet sorghum bagasse

Author:
Yadollah Jafari; Hamid Amiri; Keikhosro Karimi
Source:
Applied energy 2016 v.168 pp. 216-225
ISSN:
0306-2619
Subject:
Clostridium acetobutylicum; acetic acid; acetone; bagasse; biobutanol; butanol; butyric acid; cost effectiveness; energy; enzymatic hydrolysis; ethanol; ethanol production; fermentation; gasoline; hydrolysates; hydrolysis; lignin; lignocellulose; solvents; sugars; sweet sorghum
Abstract:
... Development of efficient and cost-effective pretreatment prior to hydrolysis is essential for the economical production of biobutanol from lignocelluloses. In this study, acetone pretreatment with a number of advantages over the other pretreatments was used to improve enzymatic hydrolysis and fermentation with Clostridium acetobutylicum for acetone–butanol–ethanol (ABE) production from sweet sorgh ...
DOI:
10.1016/j.apenergy.2016.01.090

87. Acetone problem in use of the acetylene blockage method for assessment od denitrifying activity in soil

Author:
Gross, P.J.; Bremner, J.M.
Source:
Communications in soil science and plant analysis 1992 v.23 no.13/14 pp. 1345-1358
ISSN:
0010-3624
Subject:
soil microorganisms; denitrifying microorganisms; soil analysis; biological activity in soil; denitrification; acetylene; acetone
DOI:
10.1080/00103629209368671

88. Acetone production in solventogenic Clostridium species: new insights from non-enzymatic decarboxylation of acetoacetate

Author:
Bei Han; Venkat Gopalan; Thaddeus Chukwuemeka Ezeji
Source:
Applied microbiology and biotechnology 2011 v.91 no.3 pp. 565-576
ISSN:
0175-7598
Subject:
Clostridium beijerinckii; acetone; butanol; carbon dioxide; decarboxylation; economics; fermentation; genes; homologous recombination; mutants; pH
Abstract:
... Development of a butanologenic strain with high selectivity for butanol production is often proposed as a possible route for improving the economics of biobutanol production by solventogenic Clostridium species. The acetoacetate decarboxylase (aadc) gene encoding acetoacetate decarboxylase (AADC), which catalyzes the decarboxylation of acetoacetate into acetone and CO2, was successfully disrupted ...
DOI:
10.1007/s00253-011-3276-5
PubMed:
21533580

89. 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

90. Acetone promoted 1,4-migration of an alkoxycarbonyl group on a syn-1,2-diamine

Author:
Tanya Napolitano; Shu-Yuan Cheng; Brooke Nielsen; Christopher Choi; William Aguilar; Manuel M. Paz; Anne-Marie Sapse; Elise Champeil
Source:
Tetrahedron letters 2017 v.58 pp. 597-601
ISSN:
0040-4039
Subject:
acetone; chemical structure; isomerization
Abstract:
... A 2-protected cis-amino mitosene undergoes an irreversible acetone promoted isomerization and converts to the 1-isomer. Kinetic studies and DFT calculations of the reaction are reported. An organocatalytic mechanism is proposed, involving a covalent intermediate formed by reaction of the mitosene and acetone. ...
DOI:
10.1016/j.tetlet.2016.12.047
PubMed:
28943668
PubMed Central:
PMC5604470

91. Acetone stimulation of ethanol production from D-xylose by Pachysolen tannophilus

Author:
Alexander, N.J.
Source:
Applied microbiology and biotechnology 1986 v.25 no.3 pp. 203-207
ISSN:
0175-7598
Subject:
yeasts; ethanol; xylose; acetone
Abstract:
... Pachysolen tannophilus, a homothallic yeast, converts xylose to ethanol at a yield of 0.3 (g/g xylose). Concomitant with ethanol production, xylitol accumulates in the culture medium at similar yields (0.3 g/g xylose). The addition of the hydrogen-accepting compound, acetone, increases the amount of ethanol produced by this organism by 50-70%. The increase in ethanol is directly correlated with a ...
Handle:
10113/23910

92. Acetone to isobutene conversion on ZnxTiyOz: Effects of TiO2 facet

Author:
Houqian Li; Matthew J. Hurlock; Berlin Sudduth; Junrui Li; Junming Sun; Qiang Zhang; Yong Wang
Source:
Journal of catalysis 2022 v.410 pp. 236-245
ISSN:
0021-9517
Subject:
acetone; alcohols; catalytic activity; titanium dioxide
Abstract:
... Liquid-phase chemical grafting method was used to graft Zn onto TiO₂ with preferentially exposed (101) or (001) facet. The obtained ZnₓTiyOz materials were characterized using various techniques (e.g., XRD, Raman, DRIFTS etc.) and evaluated for the acetone-to-isobutene reaction. It was found that over TiO₂ (001), both terminal and bridging hydroxyls were readily titrated by Zn deposition, whereas ...
DOI:
10.1016/j.jcat.2022.03.031

93. Acetone vapour-assisted growth of 2D single-crystalline organic lead halide perovskite microplates and their temperature-enhanced photoluminescence

Author:
Wenhao Zhai; Chaoyang Ge; Xin Fang; Kun Zhang; Cheng Tian; Kai Yuan; Shuren Sun; Yanping Li; Weixi Chen; Guangzhao Ran
Source:
RSC advances 2018 v.8 no.26 pp. 14527-14531
ISSN:
2046-2069
Subject:
acetone; energy; lead; photoluminescence; spectroscopy; temperature
Abstract:
... We adopt an acetone vapour-assisted method to grow high quality single-crystalline microplates of two-dimensional (2D) perovskite, 2-phenylethylammonium lead bromide [(C₆H₅C₂H₄NH₃)₂PbBr₄]. The microplates, converted from the spin-coated films, are well-defined rectangles. Temperature dependent photoluminescence (PL) spectroscopy shows that the band gap PL is enhanced markedly with increasing tempe ...
DOI:
10.1039/c8ra00583d

94. Acetone washing for the removal of lichen substances affects membrane permeability

Author:
Fabio CANDOTTO CARNIEL; Elisa PELLEGRINI; Federica BOVE; Matteo CROSERA; Gianpiero ADAMI; Cristina NALI; Giacomo LORENZINI; Mauro TRETIACH
Source:
Lichenologist 2017 v.49 no.4 pp. 387-395
ISSN:
1096-1135
Subject:
Parmotrema; Xanthoria; acetone; cell membranes; chlorophyll; fluorescence; lichens; lipid peroxidation; malondialdehyde; membrane permeability; photosynthesis; potassium; thallus; toxicity; washing
Abstract:
... Removing lichen substances from dry lichen thalli using pure acetone is the least detrimental method. Measurements of properties strictly related to the photobiont, such as chlorophyll a fluorescence (ChlₐF), are frequently used to verify acetone toxicity but they cannot reveal possible damage accumulated at the whole thallus level. Here, measurements of ChlₐF have been integrated with others conc ...
DOI:
10.1017/S0024282917000263

95. Acetone, Butanol, Ethanol and, Xylitol Production Through a Biorefinery Platform: An Experimental & Simulation Approach

Author:
Ricardo Morales-Rodriguez; Jaime David Ponce-Rocha; Fernando Israel Gómez-Castro; Eduardo Sánchez-Ramírez; Juan Gabriel Segovia-Hernández; Arturo Sánchez; Divanery Rodriguez-Gomez
Source:
Waste and biomass valorization 2021 v.12 no.9 pp. 4915-4930
ISSN:
1877-2641
Subject:
acetone; biofuels; biomass; biorefining; butanol; carbon dioxide; combustion; coproducts; economic analysis; ethanol; fermentation; process design; sugarcane bagasse; value added; wastes; xylitol; xylose
Abstract:
... PURPOSE: Butanol is an interesting biofuel and a product precursor, that could be obtained with acetone and ethanol via fermentation. The biofuels production has been identified as not economically competitive, thus, the parallel production of high value-added products, such as xylitol, could be an alternative to improve the profit. Xylitol can be produced from xylose, which might be considered as ...
DOI:
10.1007/s12649-020-01327-4

96. Acetone, a Sustainable Solvent for Electrospinning Poly(ε-Caprolactone) Fibres: Effect of Varying Parameters and Solution Concentrations on Fibre Diameter

Author:
Lucy A. Bosworth; Sandra Downes
Source:
Journal of polymers and the environment 2012 v.20 no.3 pp. 879-886
ISSN:
1566-2543
Subject:
acetone; environmental impact; extracellular matrix; polymers; solvents; spinning; tissues; toxicity
Abstract:
... Electrospinning commonly requires a solvent carrier to transform polymer materials from one solid form to another. The types of solvents are often classed as toxic and hazardous and have potential long-term impacts on the environment and the health of the user. Acetone is a sustainable and non-toxic solvent, but has received limited use within the electrospinning sector—particularly for biocompa ...
DOI:
10.1007/s10924-012-0436-3

97. Acetone, butanol, and ethanol production from cane molasses using Clostridium beijerinckii mutant obtained by combined low-energy ion beam implantation and N-methyl-N-nitro-N-nitrosoguanidine induction

Author:
Han-guang Li; Wei Luo; Qiu-ya Gu; Qiang Wang; Wen-jun Hu; Xiao-bin Yu
Source:
Bioresource technology 2013 v.137 pp. 254-260
ISSN:
0960-8524
Subject:
Clostridium beijerinckii; acetone; bottles; butanol; ethanol production; fermentation; ions; molasses; mutants; solvents
Abstract:
... In order to obtain mutant strains showing higher solvent tolerance and butanol production than those of wild-type strains, the butanol-producing strain Clostridium beijerinckii L175 was subjected to mutagenesis using a combined method of low-energy ion beam implantation and N-methyl-N-nitro-N-nitrosoguanidine induction. With this effort, mutant strain MUT3 was isolated. When it was used for butano ...
DOI:
10.1016/j.biortech.2013.03.084
PubMed:
23587827

98. Acetone, butanol, and ethanol production from gelatinized cassava flour by a new isolates with high butanol tolerance

Author:
Han-guang Li; Fred Kwame Ofosu; Kun-tai Li; Qiu-ya Gu; Qiang Wang; Xiao-bin Yu
Source:
Bioresource technology 2014 v.172 pp. 276-282
ISSN:
0960-8524
Subject:
Clostridium acetobutylicum; acclimation; acetone; butanol; cassava flour; ethanol production; fermentation; gelatinization; isolation techniques; mutants; ribosomal DNA; solvents; toxicity
Abstract:
... To obtain native strains resistant to butanol toxicity, a new isolating method and serial enrichment was used in this study. With this effort, mutant strain SE36 was obtained, which could withstand 35g/L (compared to 20g/L of the wild-type strain) butanol challenge. Based on 16s rDNA comparison, the mutant strain was identified as Clostridium acetobutylicum. Under the optimized condition, the phas ...
DOI:
10.1016/j.biortech.2014.09.058

99. Acetone, butanol, and ethanol production from puerariae slag hydrolysate through ultrasound-assisted dilute acid by Clostridium beijerinckii YBS3

Author:
Zhi-you Zhou; Shang-tian Yang; Curtis D. Moore; Qing-hua Zhang; Shuai-ying Peng; Han-guang Li
Source:
Bioresource technology 2020 v.316 pp. 123899
ISSN:
0960-8524
Subject:
Clostridium beijerinckii; acetone; acid hydrolysis; butanol; ethanol production; fermentation; hydrolysates; lignocellulose; raw materials; slags; solvents; ultrasonic treatment
Abstract:
... In this study, puerariae slag (PS) was evaluated as a renewable raw material for acetone–butanol–ethanol (ABE) fermentation. To accelerate the hydrolysis of PS, the method of ultrasound-assisted dilute acid hydrolysis (UAAH) was used. With this effort, 0.69 g reducing sugar was obtained from 1 g raw material under the optimal pretreatment condition. Subsequently, the butanol and total solvent prod ...
DOI:
10.1016/j.biortech.2020.123899

100. Acetone, butanol, and ethanol production from the green seaweed Enteromorpha intestinalis via the separate hydrolysis and fermentation

Author:
Trung Hau Nguyen; In Yung Sunwoo; Chae Hun Ra; Gwi-Taek Jeong; Sung-Koo Kim
Source:
Bioprocess and biosystems engineering 2019 v.42 no.3 pp. 415-424
ISSN:
1615-7591
Subject:
Clostridium acetobutylicum; Ulva; acetone; anaerobes; bacteria; biomass; butanol; enzymatic hydrolysis; ethanol; ethanol production; fermentation; glucose; hydrolysates; hydrolysis; macroalgae; pH; polysaccharides; saccharification; slurries; sulfuric acid
Abstract:
... Acetone, butanol, and ethanol (ABE) were produced following the separate hydrolysis and fermentation (SHF) method using polysaccharides from the green macroalgae Enteromorpha intestinalis as biomass. We focused on the optimization of enzymatic saccharification as pretreatments for the fermentation of E. intestinalis. Pretreatment was carried out with 10% (w/v) seaweed slurry and 270-mM H₂SO₄ at 12 ...
DOI:
10.1007/s00449-018-2045-6